Fragment.java revision 320113721c2e14bbc2403809046fa2959a665c11
1cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn/* 2ac5fe7c617c66850fff75a9fce9979c6e5674b0fAurimas Liutikas * Copyright 2018 The Android Open Source Project 3cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * 4cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Licensed under the Apache License, Version 2.0 (the "License"); 5cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * you may not use this file except in compliance with the License. 6cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * You may obtain a copy of the License at 7cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * 8cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * http://www.apache.org/licenses/LICENSE-2.0 9cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * 10cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Unless required by applicable law or agreed to in writing, software 11cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * distributed under the License is distributed on an "AS IS" BASIS, 12cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * See the License for the specific language governing permissions and 14cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * limitations under the License. 15cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 16cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 17ac5fe7c617c66850fff75a9fce9979c6e5674b0fAurimas Liutikaspackage androidx.fragment.app; 18cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 19ac5fe7c617c66850fff75a9fce9979c6e5674b0fAurimas Liutikasimport static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP; 20990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2115e593ea3575512d7072240d1db9d74fad8749a3George Mountimport android.animation.Animator; 22cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.app.Activity; 23c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinetsimport android.arch.lifecycle.Lifecycle; 24c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinetsimport android.arch.lifecycle.LifecycleOwner; 25c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinetsimport android.arch.lifecycle.LifecycleRegistry; 2641516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lakeimport android.arch.lifecycle.ViewModelStore; 2741516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lakeimport android.arch.lifecycle.ViewModelStoreOwner; 28cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.content.ComponentCallbacks; 29cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.content.Context; 30cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.content.Intent; 31fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarriimport android.content.IntentSender; 32cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.content.res.Configuration; 33cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.content.res.Resources; 34cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.os.Bundle; 35990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mountimport android.os.Looper; 36cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.os.Parcel; 37cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.os.Parcelable; 38cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.util.AttributeSet; 39cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.util.SparseArray; 40cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.view.ContextMenu; 419562a3b639225d406d736b64a12e2d75459259e3Alan Viveretteimport android.view.ContextMenu.ContextMenuInfo; 42cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.view.LayoutInflater; 43cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.view.Menu; 44cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.view.MenuInflater; 45cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.view.MenuItem; 46cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.view.View; 47cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.view.View.OnCreateContextMenuListener; 489562a3b639225d406d736b64a12e2d75459259e3Alan Viveretteimport android.view.ViewGroup; 49cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.view.animation.Animation; 50cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport android.widget.AdapterView; 51cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 52320113721c2e14bbc2403809046fa2959a665c11Aurimas Liutikasimport androidx.annotation.CallSuper; 53320113721c2e14bbc2403809046fa2959a665c11Aurimas Liutikasimport androidx.annotation.NonNull; 54320113721c2e14bbc2403809046fa2959a665c11Aurimas Liutikasimport androidx.annotation.Nullable; 55320113721c2e14bbc2403809046fa2959a665c11Aurimas Liutikasimport androidx.annotation.RestrictTo; 56320113721c2e14bbc2403809046fa2959a665c11Aurimas Liutikasimport androidx.annotation.StringRes; 57320113721c2e14bbc2403809046fa2959a665c11Aurimas Liutikasimport androidx.collection.SimpleArrayMap; 58320113721c2e14bbc2403809046fa2959a665c11Aurimas Liutikasimport androidx.core.app.SharedElementCallback; 59320113721c2e14bbc2403809046fa2959a665c11Aurimas Liutikasimport androidx.core.util.DebugUtils; 60320113721c2e14bbc2403809046fa2959a665c11Aurimas Liutikasimport androidx.core.view.LayoutInflaterCompat; 61320113721c2e14bbc2403809046fa2959a665c11Aurimas Liutikasimport androidx.loader.app.LoaderManager; 62320113721c2e14bbc2403809046fa2959a665c11Aurimas Liutikas 63cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport java.io.FileDescriptor; 64cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackbornimport java.io.PrintWriter; 65b7a2c474fc66d5b7f2a57f2c212f8ac5a9e6de70Aurimas Liutikasimport java.lang.reflect.InvocationTargetException; 66cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 67cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn/** 68cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Static library support version of the framework's {@link android.app.Fragment}. 69cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Used to write apps that run on platforms prior to Android 3.0. When running 70cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * on Android 3.0 or above, this implementation is still used; it does not try 719dcd2e58138ca4eb4b18f80b50e8979329e859d6Scott Main * to switch to the framework's implementation. See the framework {@link android.app.Fragment} 72cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * documentation for a class overview. 739dcd2e58138ca4eb4b18f80b50e8979329e859d6Scott Main * 749dcd2e58138ca4eb4b18f80b50e8979329e859d6Scott Main * <p>The main differences when using this support version instead of the framework version are: 759dcd2e58138ca4eb4b18f80b50e8979329e859d6Scott Main * <ul> 769dcd2e58138ca4eb4b18f80b50e8979329e859d6Scott Main * <li>Your activity must extend {@link FragmentActivity} 779dcd2e58138ca4eb4b18f80b50e8979329e859d6Scott Main * <li>You must call {@link FragmentActivity#getSupportFragmentManager} to get the 789dcd2e58138ca4eb4b18f80b50e8979329e859d6Scott Main * {@link FragmentManager} 799dcd2e58138ca4eb4b18f80b50e8979329e859d6Scott Main * </ul> 809dcd2e58138ca4eb4b18f80b50e8979329e859d6Scott Main * 81cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 8241516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lakepublic class Fragment implements ComponentCallbacks, OnCreateContextMenuListener, LifecycleOwner, 8341516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake ViewModelStoreOwner { 842290993eddf5262a8df7fc9478daed52401e325aDianne Hackborn private static final SimpleArrayMap<String, Class<?>> sClassMap = 852290993eddf5262a8df7fc9478daed52401e325aDianne Hackborn new SimpleArrayMap<String, Class<?>>(); 869f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 879f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount static final Object USE_DEFAULT_TRANSITION = new Object(); 889f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 89cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn static final int INITIALIZING = 0; // Not yet created. 90cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn static final int CREATED = 1; // Created. 91cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn static final int ACTIVITY_CREATED = 2; // The activity has finished its creation. 92e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn static final int STOPPED = 3; // Fully created, not started. 93e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn static final int STARTED = 4; // Created and started, not resumed. 94e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn static final int RESUMED = 5; // Created started and resumed. 954bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 96cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn int mState = INITIALIZING; 974bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 98cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // When instantiated from saved state, this is the saved state. 99cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn Bundle mSavedFragmentState; 100cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn SparseArray<Parcelable> mSavedViewState; 1014bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 102cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // Index into active fragment array. 103cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn int mIndex = -1; 1044bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 105cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // Internal unique name for this fragment; 106cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn String mWho; 1074bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 108cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // Construction arguments; 109cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn Bundle mArguments; 110cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 111cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // Target fragment. 112cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn Fragment mTarget; 113cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 1142c4b5dbfee5232bcbbcb74b84ce9147b62a9d789Dianne Hackborn // For use when retaining a fragment: this is the index of the last mTarget. 1152c4b5dbfee5232bcbbcb74b84ce9147b62a9d789Dianne Hackborn int mTargetIndex = -1; 1162c4b5dbfee5232bcbbcb74b84ce9147b62a9d789Dianne Hackborn 117cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // Target request code. 118cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn int mTargetRequestCode; 119cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 120cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // True if the fragment is in the list of added fragments. 121cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn boolean mAdded; 1224bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 123cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // If set this fragment is being removed from its activity. 124cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn boolean mRemoving; 1254bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 126cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // Set to true if this fragment was instantiated from a layout file. 127cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn boolean mFromLayout; 1284bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 129cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // Set to true when the view has actually been inflated in its layout. 130cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn boolean mInLayout; 131cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 132cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // True if this fragment has been restored from previously saved state. 133cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn boolean mRestored; 134d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 13537149f137aad1b2ec06df63807cef6713da3ca2fAdam Powell // True if performCreateView has been called and a matching call to performDestroyView 13637149f137aad1b2ec06df63807cef6713da3ca2fAdam Powell // has not yet happened. 13737149f137aad1b2ec06df63807cef6713da3ca2fAdam Powell boolean mPerformedCreateView; 13837149f137aad1b2ec06df63807cef6713da3ca2fAdam Powell 139cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // Number of active back stack entries this fragment is in. 140cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn int mBackStackNesting; 141d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 142cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // The fragment manager we are associated with. Set as soon as the 143cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // fragment is used in a transaction; cleared after it has been removed 144cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // from all transactions. 145abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell FragmentManagerImpl mFragmentManager; 146cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 147d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy // Host this fragment is attached to. 1488491eb62f621cd5de4b4caed839be09c77011f53Todd Kennedy FragmentHostCallback mHost; 1490adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 1500adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn // Private fragment manager for child fragments inside of this one. 1510adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn FragmentManagerImpl mChildFragmentManager; 1520adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 153c077b4cd990a9f220a27ad5eca04828e17136064Adam Powell // For use when restoring fragment state and descendant fragments are retained. 154c077b4cd990a9f220a27ad5eca04828e17136064Adam Powell // This state is set by FragmentState.instantiate and cleared in onCreate. 155c077b4cd990a9f220a27ad5eca04828e17136064Adam Powell FragmentManagerNonConfig mChildNonConfig; 156c077b4cd990a9f220a27ad5eca04828e17136064Adam Powell 15741516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake // ViewModelStore for storing ViewModels associated with this Fragment 15841516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake ViewModelStore mViewModelStore; 15941516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake 1600adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn // If this Fragment is contained in another Fragment, this is that container. 1610adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn Fragment mParentFragment; 1620adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 163cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // The optional identifier for this fragment -- either the container ID if it 164cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // was dynamically added to the view hierarchy, or the ID supplied in 165cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // layout. 166cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn int mFragmentId; 1674bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 168cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // When a fragment is being dynamically added to the view hierarchy, this 169cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // is the identifier of the parent container it is being added to. 170cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn int mContainerId; 1714bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 172cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // The optional named tag for this fragment -- usually used to find 173cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // fragments that are not part of the layout. 174cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn String mTag; 1754bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 176cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // Set to true when the app has requested that this fragment be hidden 177cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // from the user. 178cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn boolean mHidden; 1794bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 180e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn // Set to true when the app has requested that this fragment be deactivated. 181e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn boolean mDetached; 182e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn 183cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // If set this fragment would like its instance retained across 184cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // configuration changes. 185cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn boolean mRetainInstance; 1862bdd09a243b422960168170e2344274cc9cfd788Todd Kennedy 187cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // If set this fragment is being retained across the current config change. 188cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn boolean mRetaining; 1894bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 190cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // If set this fragment has menu items to contribute. 191cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn boolean mHasMenu; 1922a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn 1932a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn // Set to true to allow the fragment's menu to be shown. 1942a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn boolean mMenuVisible = true; 1952a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn 196cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // Used to verify that subclasses call through to super class. 197cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn boolean mCalled; 1984bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 199cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // The parent container of the fragment after dynamically added to UI. 200cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn ViewGroup mContainer; 2014bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 202cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // The View generated for this fragment. 203cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn View mView; 2044bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 205cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // The real inner view that will save/restore state. 206cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn View mInnerView; 207abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell 208abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell // Whether this fragment should defer starting until after other fragments 209abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell // have been started and their loaders are finished. 210abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell boolean mDeferStart; 2114bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 21279398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell // Hint provided by the app that this fragment is currently visible to the user. 21379398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell boolean mUserVisibleHint = true; 214abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell 215990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // The animation and transition information for the fragment. This will be null 216990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // unless the elements are explicitly accessed and should remain null for Fragments 217990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // without Views. 218990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount AnimationInfo mAnimationInfo; 2199f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 220990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // True if the View was added, and its animation has yet to be run. This could 221990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // also indicate that the fragment view hasn't been made visible, even if there is no 222990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // animation for this fragment. 223990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount boolean mIsNewlyAdded; 224990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 225990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // True if mHidden has been changed and the animation should be scheduled. 226990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount boolean mHiddenChanged; 2279f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 2280bb3f19c91311de0b6619c7728a7bcc1f6863132George Mount // The alpha of the view when the view was added and then postponed. If the value is less 2290bb3f19c91311de0b6619c7728a7bcc1f6863132George Mount // than zero, this means that the view's add was canceled and should not participate in 2300bb3f19c91311de0b6619c7728a7bcc1f6863132George Mount // removal animations. 2310bb3f19c91311de0b6619c7728a7bcc1f6863132George Mount float mPostponedAlpha; 2320bb3f19c91311de0b6619c7728a7bcc1f6863132George Mount 2338b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount // The cached value from onGetLayoutInflater(Bundle) that will be returned from 2348b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount // getLayoutInflater() 2358b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount LayoutInflater mLayoutInflater; 2368b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount 237e97d1f2defa08e9bff9d39d6157981e30407e90aGeorge Mount // Keep track of whether or not this Fragment has run performCreate(). Retained instance 238e97d1f2defa08e9bff9d39d6157981e30407e90aGeorge Mount // fragments can have mRetaining set to true without going through creation, so we must 239e97d1f2defa08e9bff9d39d6157981e30407e90aGeorge Mount // track it separately. 240e97d1f2defa08e9bff9d39d6157981e30407e90aGeorge Mount boolean mIsCreated; 241e97d1f2defa08e9bff9d39d6157981e30407e90aGeorge Mount 242c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets LifecycleRegistry mLifecycleRegistry = new LifecycleRegistry(this); 243c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets 244c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets @Override 245c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets public Lifecycle getLifecycle() { 246c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets return mLifecycleRegistry; 247c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets } 248c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets 24941516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake @NonNull 25041516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake @Override 25141516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake public ViewModelStore getViewModelStore() { 25241516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake if (getContext() == null) { 25341516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake throw new IllegalStateException("Can't access ViewModels from detached fragment"); 25441516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake } 25541516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake if (mViewModelStore == null) { 25641516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake mViewModelStore = new ViewModelStore(); 25741516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake } 25841516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake return mViewModelStore; 25941516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake } 26041516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake 261cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 2625c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn * State information that has been retrieved from a fragment instance 2635c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn * through {@link FragmentManager#saveFragmentInstanceState(Fragment) 2645c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn * FragmentManager.saveFragmentInstanceState}. 2655c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn */ 2665c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn public static class SavedState implements Parcelable { 2675c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn final Bundle mState; 2685c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn 2695c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn SavedState(Bundle state) { 2705c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn mState = state; 2715c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn } 2725c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn 2735c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn SavedState(Parcel in, ClassLoader loader) { 2745c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn mState = in.readBundle(); 2755c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn if (loader != null && mState != null) { 2765c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn mState.setClassLoader(loader); 2775c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn } 2785c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn } 2795c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn 2805c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn @Override 2815c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn public int describeContents() { 2825c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn return 0; 2835c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn } 2845c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn 2855c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn @Override 2865c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn public void writeToParcel(Parcel dest, int flags) { 2875c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn dest.writeBundle(mState); 2885c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn } 2895c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn 2905c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn public static final Parcelable.Creator<SavedState> CREATOR 2915c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn = new Parcelable.Creator<SavedState>() { 292d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy @Override 2935c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn public SavedState createFromParcel(Parcel in) { 2945c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn return new SavedState(in, null); 2955c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn } 2965c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn 297d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy @Override 2985c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn public SavedState[] newArray(int size) { 2995c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn return new SavedState[size]; 3005c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn } 3015c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn }; 3025c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn } 3035c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn 3045c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn /** 305cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Thrown by {@link Fragment#instantiate(Context, String, Bundle)} when 306cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * there is an instantiation failure. 307cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 308960e687174a4c2daca556d52bfd48e2fd8f4f317Jake Wharton @SuppressWarnings("JavaLangClash") 309960e687174a4c2daca556d52bfd48e2fd8f4f317Jake Wharton public static class InstantiationException extends RuntimeException { 310cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public InstantiationException(String msg, Exception cause) { 311cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn super(msg, cause); 312cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 313cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 314cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 315cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 316cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Default constructor. <strong>Every</strong> fragment must have an 317cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * empty constructor, so it can be instantiated when restoring its 318cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * activity's state. It is strongly recommended that subclasses do not 319cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * have other constructors with parameters, since these constructors 320cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * will not be called when the fragment is re-instantiated; instead, 321cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * arguments can be supplied by the caller with {@link #setArguments} 322cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * and later retrieved by the Fragment with {@link #getArguments}. 3234bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 32404f7579a1350af17f700a392f986efd126ccc68bAurimas Liutikas * <p>Applications should generally not implement a constructor. Prefer 32504f7579a1350af17f700a392f986efd126ccc68bAurimas Liutikas * {@link #onAttach(Context)} instead. It is the first place application code can run where 32604f7579a1350af17f700a392f986efd126ccc68bAurimas Liutikas * the fragment is ready to be used - the point where the fragment is actually associated with 32704f7579a1350af17f700a392f986efd126ccc68bAurimas Liutikas * its context. Some applications may also want to implement {@link #onInflate} to retrieve 32804f7579a1350af17f700a392f986efd126ccc68bAurimas Liutikas * attributes from a layout resource, although note this happens when the fragment is attached. 329cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 330cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public Fragment() { 331cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 332cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 333cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 334cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Like {@link #instantiate(Context, String, Bundle)} but with a null 335cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * argument Bundle. 336cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 337cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public static Fragment instantiate(Context context, String fname) { 338cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return instantiate(context, fname, null); 339cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 340cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 341cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 342cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Create a new instance of a Fragment with the given class name. This is 343cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * the same as calling its empty constructor. 344cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * 345cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param context The calling context being used to instantiate the fragment. 346cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * This is currently just used to get its ClassLoader. 347cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param fname The class name of the fragment to instantiate. 348cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param args Bundle of arguments to supply to the fragment, which it 349cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * can retrieve with {@link #getArguments()}. May be null. 350cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @return Returns a new fragment instance. 351cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @throws InstantiationException If there is a failure in instantiating 352cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * the given fragment class. This is a runtime exception; it is not 353cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * normally expected to happen. 354cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 355c861fd8b28b0b878ccc194ee6099b3b1bc4c3ae8Scott Kennedy public static Fragment instantiate(Context context, String fname, @Nullable Bundle args) { 356cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn try { 357cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn Class<?> clazz = sClassMap.get(fname); 358cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (clazz == null) { 359cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn // Class not found in the cache, see if it's real, and try to add it 360cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn clazz = context.getClassLoader().loadClass(fname); 361cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn sClassMap.put(fname, clazz); 362cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 363b7a2c474fc66d5b7f2a57f2c212f8ac5a9e6de70Aurimas Liutikas Fragment f = (Fragment) clazz.getConstructor().newInstance(); 364cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (args != null) { 365cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn args.setClassLoader(f.getClass().getClassLoader()); 36637149f137aad1b2ec06df63807cef6713da3ca2fAdam Powell f.setArguments(args); 367cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 368cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return f; 369cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } catch (ClassNotFoundException e) { 370cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn throw new InstantiationException("Unable to instantiate fragment " + fname 371cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn + ": make sure class name exists, is public, and has an" 372cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn + " empty constructor that is public", e); 373cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } catch (java.lang.InstantiationException e) { 374cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn throw new InstantiationException("Unable to instantiate fragment " + fname 375cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn + ": make sure class name exists, is public, and has an" 376cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn + " empty constructor that is public", e); 377cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } catch (IllegalAccessException e) { 378cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn throw new InstantiationException("Unable to instantiate fragment " + fname 379cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn + ": make sure class name exists, is public, and has an" 380cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn + " empty constructor that is public", e); 381b7a2c474fc66d5b7f2a57f2c212f8ac5a9e6de70Aurimas Liutikas } catch (NoSuchMethodException e) { 382b7a2c474fc66d5b7f2a57f2c212f8ac5a9e6de70Aurimas Liutikas throw new InstantiationException("Unable to instantiate fragment " + fname 383b7a2c474fc66d5b7f2a57f2c212f8ac5a9e6de70Aurimas Liutikas + ": could not find Fragment constructor", e); 384b7a2c474fc66d5b7f2a57f2c212f8ac5a9e6de70Aurimas Liutikas } catch (InvocationTargetException e) { 385b7a2c474fc66d5b7f2a57f2c212f8ac5a9e6de70Aurimas Liutikas throw new InstantiationException("Unable to instantiate fragment " + fname 386b7a2c474fc66d5b7f2a57f2c212f8ac5a9e6de70Aurimas Liutikas + ": calling Fragment constructor caused an exception", e); 387cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 388cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 3893fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell 3903fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell /** 3913fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell * Determine if the given fragment name is a support library fragment class. 3923fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell * 3933fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell * @param context Context used to determine the correct ClassLoader to use 3943fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell * @param fname Class name of the fragment to test 395ac5fe7c617c66850fff75a9fce9979c6e5674b0fAurimas Liutikas * @return true if <code>fname</code> is <code>androidx.fragment.app.Fragment</code> 3963fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell * or a subclass, false otherwise. 3973fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell */ 3983fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell static boolean isSupportFragmentClass(Context context, String fname) { 3993fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell try { 4003fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell Class<?> clazz = sClassMap.get(fname); 4013fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell if (clazz == null) { 4023fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell // Class not found in the cache, see if it's real, and try to add it 4033fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell clazz = context.getClassLoader().loadClass(fname); 4043fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell sClassMap.put(fname, clazz); 4053fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell } 4063fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell return Fragment.class.isAssignableFrom(clazz); 4073fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell } catch (ClassNotFoundException e) { 4083fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell return false; 4093fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell } 4103fafb0817f980d1819d0708b3c3da00454ba4c1fAdam Powell } 4114bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 4120adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn final void restoreViewState(Bundle savedInstanceState) { 413cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mSavedViewState != null) { 414cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mInnerView.restoreHierarchyState(mSavedViewState); 415cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mSavedViewState = null; 416cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 4170adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mCalled = false; 4180adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onViewStateRestored(savedInstanceState); 4190adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mCalled) { 4200adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn throw new SuperNotCalledException("Fragment " + this 4210adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn + " did not call through to super.onViewStateRestored()"); 4220adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 423cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 4240adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 4250adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn final void setIndex(int index, Fragment parent) { 426cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mIndex = index; 4270adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (parent != null) { 4280adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mWho = parent.mWho + ":" + mIndex; 4290adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } else { 4300adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mWho = "android:fragment:" + mIndex; 4310adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 432e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn } 4330adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 434e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn final boolean isInBackStack() { 435e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn return mBackStackNesting > 0; 436e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn } 437e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn 438cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 439cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Subclasses can not override equals(). 440cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 441cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn @Override final public boolean equals(Object o) { 442cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return super.equals(o); 443cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 444cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 445cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 446cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Subclasses can not override hashCode(). 447cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 448cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn @Override final public int hashCode() { 449cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return super.hashCode(); 450cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 4514bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 452cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn @Override 453cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public String toString() { 454cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn StringBuilder sb = new StringBuilder(128); 455cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn DebugUtils.buildShortClassTag(this, sb); 456cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mIndex >= 0) { 457cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn sb.append(" #"); 458cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn sb.append(mIndex); 459cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 460cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mFragmentId != 0) { 461cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn sb.append(" id=0x"); 462cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn sb.append(Integer.toHexString(mFragmentId)); 463cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 464cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mTag != null) { 465cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn sb.append(" "); 466cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn sb.append(mTag); 467cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 468cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn sb.append('}'); 469cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return sb.toString(); 470cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 4714bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 472cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 473cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return the identifier this fragment is known by. This is either 474cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * the android:id value supplied in a layout or the container view ID 475cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * supplied when adding the fragment. 476cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 477cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public int getId() { 478cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return mFragmentId; 479cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 4804bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 481cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 482cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Get the tag name of the fragment, if specified. 483cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 4842a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @Nullable 485cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public String getTag() { 486cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return mTag; 487cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 4884bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 489cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 4905e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell * Supply the construction arguments for this fragment. 4915e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell * The arguments supplied here will be retained across fragment destroy and 492cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * creation. 4935e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell * <p>This method cannot be called if the fragment is added to a FragmentManager and 4945e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell * if {@link #isStateSaved()} would return true.</p> 495cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 4962a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton public void setArguments(@Nullable Bundle args) { 4975e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell if (mIndex >= 0 && isStateSaved()) { 4985e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell throw new IllegalStateException("Fragment already active and state has been saved"); 499cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 500cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mArguments = args; 501cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 502cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 503cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 504cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return the arguments supplied when the fragment was instantiated, 505cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * if any. 506cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 5072a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @Nullable 508cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public Bundle getArguments() { 509cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return mArguments; 510cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 511cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 512cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 5135e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell * Returns true if this fragment is added and its state has already been saved 5145e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell * by its host. Any operations that would change saved state should not be performed 5155e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell * if this method returns true, and some operations such as {@link #setArguments(Bundle)} 5165e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell * will fail. 5175e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell * 5185e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell * @return true if this fragment's state has already been saved by its host 5195e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell */ 5205e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell public final boolean isStateSaved() { 5215e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell if (mFragmentManager == null) { 5225e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell return false; 5235e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell } 5245e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell return mFragmentManager.isStateSaved(); 5255e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell } 5265e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell 5275e2b030b851bde2b4569104a01b4acf6960327a6Adam Powell /** 5285c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn * Set the initial saved state that this Fragment should restore itself 5295c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn * from when first being constructed, as returned by 5305c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn * {@link FragmentManager#saveFragmentInstanceState(Fragment) 5315c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn * FragmentManager.saveFragmentInstanceState}. 5325c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn * 5335c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn * @param state The state the fragment should be restored from. 5345c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn */ 5352a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton public void setInitialSavedState(@Nullable SavedState state) { 5365c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn if (mIndex >= 0) { 5375c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn throw new IllegalStateException("Fragment already active"); 5385c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn } 5395c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn mSavedFragmentState = state != null && state.mState != null 5405c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn ? state.mState : null; 5415c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn } 5425c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn 5435c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn /** 544cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Optional target for this fragment. This may be used, for example, 545cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * if this fragment is being started by another, and when done wants to 546cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * give a result back to the first. The target set here is retained 547cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * across instances via {@link FragmentManager#putFragment 548cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * FragmentManager.putFragment()}. 549cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * 550cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param fragment The fragment that is the target of this one. 551cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param requestCode Optional request code, for convenience if you 552cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * are going to call back with {@link #onActivityResult(int, int, Intent)}. 553cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 554b7a2c474fc66d5b7f2a57f2c212f8ac5a9e6de70Aurimas Liutikas @SuppressWarnings("ReferenceEquality") 5552a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton public void setTargetFragment(@Nullable Fragment fragment, int requestCode) { 556a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell // Don't allow a caller to set a target fragment in another FragmentManager, 557a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell // but there's a snag: people do set target fragments before fragments get added. 558a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell // We'll have the FragmentManager check that for validity when we move 559a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell // the fragments to a valid state. 560a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell final FragmentManager mine = getFragmentManager(); 5612ab15df66963610bc02cb30e9a459f2b49c2ccfaAdam Powell final FragmentManager theirs = fragment != null ? fragment.getFragmentManager() : null; 562a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell if (mine != null && theirs != null && mine != theirs) { 563a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell throw new IllegalArgumentException("Fragment " + fragment 564a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell + " must share the same FragmentManager to be set as a target fragment"); 565a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell } 566a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell 567a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell // Don't let someone create a cycle. 568a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell for (Fragment check = fragment; check != null; check = check.getTargetFragment()) { 569a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell if (check == this) { 570a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell throw new IllegalArgumentException("Setting " + fragment + " as the target of " 571a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell + this + " would create a target cycle"); 572a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell } 573a4fd990846a60f3647445bf65980faad47b4cc68Adam Powell } 574cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mTarget = fragment; 575cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mTargetRequestCode = requestCode; 576cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 577cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 578cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 579cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return the target fragment set by {@link #setTargetFragment}. 580cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 5812a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @Nullable 582cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public Fragment getTargetFragment() { 583cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return mTarget; 584cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 585cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 586cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 587cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return the target request code set by {@link #setTargetFragment}. 588cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 589cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public int getTargetRequestCode() { 590cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return mTargetRequestCode; 591cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 592cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 593cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 594d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy * Return the {@link Context} this fragment is currently associated with. 595c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * 596c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @see #requireContext() 597d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy */ 598b38fded102ffe4de21f2d048262f52d5bcefbfd5Jake Wharton @Nullable 599edaa101bfa72b5e5a5b14b9e6c66579eaed5e8ccTodd Kennedy public Context getContext() { 600d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy return mHost == null ? null : mHost.getContext(); 601d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy } 602d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 603d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy /** 604c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * Return the {@link Context} this fragment is currently associated with. 605c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * 606c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @throws IllegalStateException if not currently associated with a context. 607c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @see #getContext() 608c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton */ 609c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton @NonNull 610c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton public final Context requireContext() { 611c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton Context context = getContext(); 612c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton if (context == null) { 613c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton throw new IllegalStateException("Fragment " + this + " not attached to a context."); 614c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton } 615c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton return context; 616c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton } 617c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton 618c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton /** 619d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy * Return the {@link FragmentActivity} this fragment is currently associated with. 620d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy * May return {@code null} if the fragment is associated with a {@link Context} 621d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy * instead. 622c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * 623c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @see #requireActivity() 624cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 625b38fded102ffe4de21f2d048262f52d5bcefbfd5Jake Wharton @Nullable 626cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public FragmentActivity getActivity() { 627d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy return mHost == null ? null : (FragmentActivity) mHost.getActivity(); 628cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 629d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 630cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 631c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * Return the {@link FragmentActivity} this fragment is currently associated with. 632c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * 633c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @throws IllegalStateException if not currently associated with an activity or if associated 634c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * only with a context. 635c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @see #getActivity() 636c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton */ 637c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton @NonNull 638c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton public final FragmentActivity requireActivity() { 639c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton FragmentActivity activity = getActivity(); 640c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton if (activity == null) { 641c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton throw new IllegalStateException("Fragment " + this + " not attached to an activity."); 642c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton } 643c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton return activity; 644c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton } 645c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton 646c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton /** 647edaa101bfa72b5e5a5b14b9e6c66579eaed5e8ccTodd Kennedy * Return the host object of this fragment. May return {@code null} if the fragment 648edaa101bfa72b5e5a5b14b9e6c66579eaed5e8ccTodd Kennedy * isn't currently being hosted. 649c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * 650c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @see #requireHost() 651edaa101bfa72b5e5a5b14b9e6c66579eaed5e8ccTodd Kennedy */ 652b38fded102ffe4de21f2d048262f52d5bcefbfd5Jake Wharton @Nullable 653edaa101bfa72b5e5a5b14b9e6c66579eaed5e8ccTodd Kennedy final public Object getHost() { 6548491eb62f621cd5de4b4caed839be09c77011f53Todd Kennedy return mHost == null ? null : mHost.onGetHost(); 655edaa101bfa72b5e5a5b14b9e6c66579eaed5e8ccTodd Kennedy } 656edaa101bfa72b5e5a5b14b9e6c66579eaed5e8ccTodd Kennedy 657edaa101bfa72b5e5a5b14b9e6c66579eaed5e8ccTodd Kennedy /** 658c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * Return the host object of this fragment. 659c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * 660c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @throws IllegalStateException if not currently associated with a host. 661c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @see #getHost() 662cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 6632a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @NonNull 664c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton public final Object requireHost() { 665c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton Object host = getHost(); 666c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton if (host == null) { 667c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton throw new IllegalStateException("Fragment " + this + " not attached to a host."); 668cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 669c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton return host; 670c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton } 671c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton 672c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton /** 673c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * Return <code>requireActivity().getResources()</code>. 674c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton */ 675c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton @NonNull 676c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton final public Resources getResources() { 677c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton return requireContext().getResources(); 678cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 679d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 680cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 681cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return a localized, styled CharSequence from the application's package's 682cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * default string table. 683cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * 684cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param resId Resource id for the CharSequence text 685cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 6862a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @NonNull 687a3ff3273e976adf19770651dcf473fa67b38eb22Tor Norbye public final CharSequence getText(@StringRes int resId) { 688cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return getResources().getText(resId); 689cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 690cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 691cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 692cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return a localized string from the application's package's 693cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * default string table. 694cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * 695cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param resId Resource id for the string 696cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 6972a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @NonNull 698a3ff3273e976adf19770651dcf473fa67b38eb22Tor Norbye public final String getString(@StringRes int resId) { 699cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return getResources().getString(resId); 700cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 701cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 702cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 703cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return a localized formatted string from the application's package's 704cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * default string table, substituting the format arguments as defined in 705cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link java.util.Formatter} and {@link java.lang.String#format}. 706cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * 707cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param resId Resource id for the format string 708cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param formatArgs The format arguments that will be used for substitution. 709cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 7102a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @NonNull 711a3ff3273e976adf19770651dcf473fa67b38eb22Tor Norbye public final String getString(@StringRes int resId, Object... formatArgs) { 712cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return getResources().getString(resId, formatArgs); 713cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 714cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 715cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 716cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return the FragmentManager for interacting with fragments associated 717cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * with this fragment's activity. Note that this will be non-null slightly 718cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * before {@link #getActivity()}, during the time from when the fragment is 719cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * placed in a {@link FragmentTransaction} until it is committed and 720cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * attached to its activity. 7210adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * 7220adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * <p>If this Fragment is a child of another Fragment, the FragmentManager 7230adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * returned here will be the parent's {@link #getChildFragmentManager()}. 724c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * 725c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @see #requireFragmentManager() 726cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 727b38fded102ffe4de21f2d048262f52d5bcefbfd5Jake Wharton @Nullable 728cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public FragmentManager getFragmentManager() { 729cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return mFragmentManager; 730cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 731cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 732cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 733c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * Return the FragmentManager for interacting with fragments associated 734c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * with this fragment's activity. Note that this will available slightly 735c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * before {@link #getActivity()}, during the time from when the fragment is 736c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * placed in a {@link FragmentTransaction} until it is committed and 737c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * attached to its activity. 738c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * 739c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * <p>If this Fragment is a child of another Fragment, the FragmentManager 740c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * returned here will be the parent's {@link #getChildFragmentManager()}. 741c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * 742c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @throws IllegalStateException if not associated with a transaction or host. 743c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton * @see #getFragmentManager() 744c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton */ 745c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton @NonNull 746c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton public final FragmentManager requireFragmentManager() { 747c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton FragmentManager fragmentManager = getFragmentManager(); 748c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton if (fragmentManager == null) { 749c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton throw new IllegalStateException( 750c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton "Fragment " + this + " not associated with a fragment manager."); 751c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton } 752c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton return fragmentManager; 753c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton } 754c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton 755c7dd6a0b8a02ed90a16d55afa0c83fa8b986dbabJake Wharton /** 7560adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * Return a private FragmentManager for placing and managing Fragments 7570adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * inside of this Fragment. 7580adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn */ 7592a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @NonNull 7600adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn final public FragmentManager getChildFragmentManager() { 7610adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager == null) { 7620adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn instantiateChildFragmentManager(); 7630adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mState >= RESUMED) { 7640adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchResume(); 7650adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } else if (mState >= STARTED) { 7660adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchStart(); 7670adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } else if (mState >= ACTIVITY_CREATED) { 7680adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchActivityCreated(); 7690adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } else if (mState >= CREATED) { 7700adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchCreate(); 7710adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 7720adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 7730adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return mChildFragmentManager; 7740adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 7750adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 7760adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn /** 777267b02ebf455fa4d7de59150548676e406b2dd2bAdam Powell * Return this fragment's child FragmentManager one has been previously created, 778267b02ebf455fa4d7de59150548676e406b2dd2bAdam Powell * otherwise null. 779267b02ebf455fa4d7de59150548676e406b2dd2bAdam Powell */ 7802a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @Nullable 781267b02ebf455fa4d7de59150548676e406b2dd2bAdam Powell FragmentManager peekChildFragmentManager() { 782267b02ebf455fa4d7de59150548676e406b2dd2bAdam Powell return mChildFragmentManager; 783267b02ebf455fa4d7de59150548676e406b2dd2bAdam Powell } 784267b02ebf455fa4d7de59150548676e406b2dd2bAdam Powell 785267b02ebf455fa4d7de59150548676e406b2dd2bAdam Powell /** 7860adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * Returns the parent Fragment containing this Fragment. If this Fragment 7870adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * is attached directly to an Activity, returns null. 7880adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn */ 7892a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @Nullable 7900adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn final public Fragment getParentFragment() { 7910adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return mParentFragment; 7920adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 7930adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 7940adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn /** 795cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return true if the fragment is currently added to its activity. 796cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 797cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public boolean isAdded() { 798d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy return mHost != null && mAdded; 799cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 800cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 801cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 8029c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn * Return true if the fragment has been explicitly detached from the UI. 8039c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn * That is, {@link FragmentTransaction#detach(Fragment) 8049c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn * FragmentTransaction.detach(Fragment)} has been used on it. 8059c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn */ 8069c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn final public boolean isDetached() { 8079c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn return mDetached; 8089c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn } 8099c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn 8109c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn /** 811cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return true if this fragment is currently being removed from its 812cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * activity. This is <em>not</em> whether its activity is finishing, but 813cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * rather whether it is in the process of being removed from its activity. 814cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 815cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public boolean isRemoving() { 816cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return mRemoving; 817cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 8184bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 819cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 820cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return true if the layout is included as part of an activity view 821cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * hierarchy via the <fragment> tag. This will always be true when 822cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * fragments are created through the <fragment> tag, <em>except</em> 823cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * in the case where an old fragment is restored from a previous state and 824cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * it does not appear in the layout of the current state. 825cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 826cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public boolean isInLayout() { 827cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return mInLayout; 828cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 829cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 830cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 831cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return true if the fragment is in the resumed state. This is true 832cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * for the duration of {@link #onResume()} and {@link #onPause()} as well. 833cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 834cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public boolean isResumed() { 83520735a45289fdad3d5d31228992e0dccd3d5dd4fAdam Powell return mState >= RESUMED; 836cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 8374bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 838cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 839cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return true if the fragment is currently visible to the user. This means 8404bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * it: (1) has been added, (2) has its view attached to the window, and 841cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * (3) is not hidden. 842cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 843cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public boolean isVisible() { 844cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return isAdded() && !isHidden() && mView != null 845cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn && mView.getWindowToken() != null && mView.getVisibility() == View.VISIBLE; 846cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 8474bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 848cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 849cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Return true if the fragment has been hidden. By default fragments 850cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * are shown. You can find out about changes to this state with 851cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #onHiddenChanged}. Note that the hidden state is orthogonal 852cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * to other states -- that is, to be visible to the user, a fragment 853cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * must be both started and not hidden. 854cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 855cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public boolean isHidden() { 856cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return mHidden; 857cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 8583a1a7fff9873abbf8097c96f7654a459bf34f223Jeff Brown 8593a1a7fff9873abbf8097c96f7654a459bf34f223Jeff Brown /** @hide */ 8608e10080c914d1ad0784394fa3026b85535535847Aurimas Liutikas @RestrictTo(LIBRARY_GROUP) 8613a1a7fff9873abbf8097c96f7654a459bf34f223Jeff Brown final public boolean hasOptionsMenu() { 8623a1a7fff9873abbf8097c96f7654a459bf34f223Jeff Brown return mHasMenu; 8633a1a7fff9873abbf8097c96f7654a459bf34f223Jeff Brown } 8643a1a7fff9873abbf8097c96f7654a459bf34f223Jeff Brown 8653a1a7fff9873abbf8097c96f7654a459bf34f223Jeff Brown /** @hide */ 8668e10080c914d1ad0784394fa3026b85535535847Aurimas Liutikas @RestrictTo(LIBRARY_GROUP) 8673a1a7fff9873abbf8097c96f7654a459bf34f223Jeff Brown final public boolean isMenuVisible() { 8683a1a7fff9873abbf8097c96f7654a459bf34f223Jeff Brown return mMenuVisible; 8693a1a7fff9873abbf8097c96f7654a459bf34f223Jeff Brown } 8703a1a7fff9873abbf8097c96f7654a459bf34f223Jeff Brown 871cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 872cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when the hidden state (as returned by {@link #isHidden()} of 873cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * the fragment has changed. Fragments start out not hidden; this will 874cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * be called whenever the fragment changes state from that. 875527415d706bf580ff2bb7b492e5202b985cfa2c7Aurimas Liutikas * @param hidden True if the fragment is now hidden, false otherwise. 876cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 877cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onHiddenChanged(boolean hidden) { 878cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 8794bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 880cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 881cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Control whether a fragment instance is retained across Activity 882cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * re-creation (such as from a configuration change). This can only 883cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * be used with fragments not in the back stack. If set, the fragment 884cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * lifecycle will be slightly different when an activity is recreated: 885cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <ul> 886cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <li> {@link #onDestroy()} will not be called (but {@link #onDetach()} still 887cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * will be, because the fragment is being detached from its current activity). 888cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <li> {@link #onCreate(Bundle)} will not be called since the fragment 889cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * is not being re-created. 890cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <li> {@link #onAttach(Activity)} and {@link #onActivityCreated(Bundle)} <b>will</b> 891cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * still be called. 892cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * </ul> 893cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 894cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void setRetainInstance(boolean retain) { 895cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mRetainInstance = retain; 896cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 8974bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 898cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn final public boolean getRetainInstance() { 899cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return mRetainInstance; 900cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 9014bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 902cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 903cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Report that this fragment would like to participate in populating 904cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * the options menu by receiving a call to {@link #onCreateOptionsMenu} 905cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * and related methods. 906d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy * 907cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param hasMenu If true, the fragment has menu items to contribute. 908cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 909cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void setHasOptionsMenu(boolean hasMenu) { 910cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mHasMenu != hasMenu) { 911cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mHasMenu = hasMenu; 912cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (isAdded() && !isHidden()) { 9138491eb62f621cd5de4b4caed839be09c77011f53Todd Kennedy mHost.onSupportInvalidateOptionsMenu(); 914cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 915cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 916cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 9172a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn 9182a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn /** 9192a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn * Set a hint for whether this fragment's menu should be visible. This 9202a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn * is useful if you know that a fragment has been placed in your view 9212a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn * hierarchy so that the user can not currently seen it, so any menu items 9222a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn * it has should also not be shown. 9232a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn * 9242a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn * @param menuVisible The default is true, meaning the fragment's menu will 9252a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn * be shown as usual. If false, the user will not see the menu. 9262a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn */ 9272a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn public void setMenuVisibility(boolean menuVisible) { 9282a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn if (mMenuVisible != menuVisible) { 9292a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn mMenuVisible = menuVisible; 9302a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn if (mHasMenu && isAdded() && !isHidden()) { 9318491eb62f621cd5de4b4caed839be09c77011f53Todd Kennedy mHost.onSupportInvalidateOptionsMenu(); 9322a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn } 9332a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn } 9342a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn } 9352a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn 936cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 93779398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell * Set a hint to the system about whether this fragment's UI is currently visible 93879398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell * to the user. This hint defaults to true and is persistent across fragment instance 93979398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell * state save and restore. 940abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell * 94179398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell * <p>An app may set this to false to indicate that the fragment's UI is 94279398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell * scrolled out of visibility or is otherwise not directly visible to the user. 94379398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell * This may be used by the system to prioritize operations such as fragment lifecycle updates 94479398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell * or loader ordering behavior.</p> 945abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell * 9460244762c99db7b1fb6c4905bc1224fefac927014Adam Powell * <p><strong>Note:</strong> This method may be called outside of the fragment lifecycle. 9470244762c99db7b1fb6c4905bc1224fefac927014Adam Powell * and thus has no ordering guarantees with regard to fragment lifecycle method calls.</p> 9480244762c99db7b1fb6c4905bc1224fefac927014Adam Powell * 94979398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell * @param isVisibleToUser true if this fragment's UI is currently visible to the user (default), 95079398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell * false if it is not. 951abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell */ 95279398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell public void setUserVisibleHint(boolean isVisibleToUser) { 9533ab5a96f51cbd0498a62f1e91f1ef99e95cb1b1cAdam Powell if (!mUserVisibleHint && isVisibleToUser && mState < STARTED 9543ab5a96f51cbd0498a62f1e91f1ef99e95cb1b1cAdam Powell && mFragmentManager != null && isAdded()) { 955abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell mFragmentManager.performPendingDeferredStart(this); 956abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell } 95779398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell mUserVisibleHint = isVisibleToUser; 958c83dccecb0ec4bf9f4befdb18caccb8f373ed7bcAdam Powell mDeferStart = mState < STARTED && !isVisibleToUser; 9590d29663c8688de94a3260584037c21dfd9e4cbfaIan Lake if (mSavedFragmentState != null) { 9600d29663c8688de94a3260584037c21dfd9e4cbfaIan Lake // Ensure that if the user visible hint is set before the Fragment has 9610d29663c8688de94a3260584037c21dfd9e4cbfaIan Lake // restored its state that we don't lose the new value 9620d29663c8688de94a3260584037c21dfd9e4cbfaIan Lake mSavedFragmentState.putBoolean(FragmentManagerImpl.USER_VISIBLE_HINT_TAG, 9630d29663c8688de94a3260584037c21dfd9e4cbfaIan Lake mUserVisibleHint); 9640d29663c8688de94a3260584037c21dfd9e4cbfaIan Lake } 965abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell } 966abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell 967abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell /** 96879398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell * @return The current value of the user-visible hint on this fragment. 96979398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell * @see #setUserVisibleHint(boolean) 970abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell */ 97179398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell public boolean getUserVisibleHint() { 97279398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell return mUserVisibleHint; 973abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell } 974abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell 975abc968f1eba800c34a4008deb43b015da5d23a5fAdam Powell /** 976afe28d91550483f9b7a82076a507151b4defd9baIan Lake * Return the LoaderManager for this fragment. 977cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 978cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public LoaderManager getLoaderManager() { 979afe28d91550483f9b7a82076a507151b4defd9baIan Lake return LoaderManager.getInstance(this); 980cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 981d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 982cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 9838491eb62f621cd5de4b4caed839be09c77011f53Todd Kennedy * Call {@link Activity#startActivity(Intent)} from the fragment's 984cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * containing Activity. 985cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 986cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void startActivity(Intent intent) { 9870e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick startActivity(intent, null); 9880e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick } 9890e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick 9900e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick /** 9910e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick * Call {@link Activity#startActivity(Intent, Bundle)} from the fragment's 9920e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick * containing Activity. 9930e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick */ 9940e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick public void startActivity(Intent intent, @Nullable Bundle options) { 995d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy if (mHost == null) { 996cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn throw new IllegalStateException("Fragment " + this + " not attached to Activity"); 997cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 9980e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick mHost.onStartActivityFromFragment(this /*fragment*/, intent, -1, options); 999cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1000d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 1001cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 10028491eb62f621cd5de4b4caed839be09c77011f53Todd Kennedy * Call {@link Activity#startActivityForResult(Intent, int)} from the fragment's 1003cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * containing Activity. 1004cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1005cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void startActivityForResult(Intent intent, int requestCode) { 10060e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick startActivityForResult(intent, requestCode, null); 10070e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick } 10080e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick 10090e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick /** 10100e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick * Call {@link Activity#startActivityForResult(Intent, int, Bundle)} from the fragment's 10110e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick * containing Activity. 10120e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick */ 10130e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick public void startActivityForResult(Intent intent, int requestCode, @Nullable Bundle options) { 1014d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy if (mHost == null) { 1015cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn throw new IllegalStateException("Fragment " + this + " not attached to Activity"); 1016cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 10170e35b9f59703416786e7ac460726c2c06a9194fcDaniel Resnick mHost.onStartActivityFromFragment(this /*fragment*/, intent, requestCode, options); 1018fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri } 1019fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri 1020fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri /** 1021fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri * Call {@link Activity#startIntentSenderForResult(IntentSender, int, Intent, int, int, int, 1022fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri * Bundle)} from the fragment's containing Activity. 1023fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri */ 1024fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri public void startIntentSenderForResult(IntentSender intent, int requestCode, 1025fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri @Nullable Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags, 1026fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri Bundle options) throws IntentSender.SendIntentException { 1027fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri if (mHost == null) { 1028fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri throw new IllegalStateException("Fragment " + this + " not attached to Activity"); 1029fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri } 1030fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri mHost.onStartIntentSenderFromFragment(this, intent, requestCode, fillInIntent, flagsMask, 1031fed04169c31e7e3d8c7a328876358dd3564062bbClara Bayarri flagsValues, extraFlags, options); 1032cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1033d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 1034cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1035cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Receive the result from a previous call to 1036cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #startActivityForResult(Intent, int)}. This follows the 1037cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * related Activity API as described there in 1038cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link Activity#onActivityResult(int, int, Intent)}. 1039d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy * 1040cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param requestCode The integer request code originally supplied to 1041cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * startActivityForResult(), allowing you to identify who this 1042cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * result came from. 1043cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param resultCode The integer result code returned by the child activity 1044cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * through its setResult(). 1045cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param data An Intent, which can return result data to the caller 1046cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * (various data can be attached to Intent "extras"). 1047cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1048cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onActivityResult(int requestCode, int resultCode, Intent data) { 1049cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1050d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 1051cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1052e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * Requests permissions to be granted to this application. These permissions 1053e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * must be requested in your manifest, they should not be granted to your app, 1054e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * and they should have protection level {@link android.content.pm.PermissionInfo 1055e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * #PROTECTION_DANGEROUS dangerous}, regardless whether they are declared by 1056e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * the platform or a third-party app. 1057e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * <p> 1058e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * Normal permissions {@link android.content.pm.PermissionInfo#PROTECTION_NORMAL} 1059e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * are granted at install time if requested in the manifest. Signature permissions 1060e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * {@link android.content.pm.PermissionInfo#PROTECTION_SIGNATURE} are granted at 1061e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * install time if requested in the manifest and the signature of your app matches 1062e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * the signature of the app declaring the permissions. 1063e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * </p> 1064e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * <p> 1065e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * If your app does not have the requested permissions the user will be presented 1066e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * with UI for accepting them. After the user has accepted or rejected the 1067e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * requested permissions you will receive a callback on {@link 1068e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * #onRequestPermissionsResult(int, String[], int[])} reporting whether the 1069e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * permissions were granted or not. 1070e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * </p> 1071e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * <p> 1072e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * Note that requesting a permission does not guarantee it will be granted and 1073e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * your app should be able to run without having this permission. 1074e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * </p> 1075e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * <p> 1076e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * This method may start an activity allowing the user to choose which permissions 1077e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * to grant and which to reject. Hence, you should be prepared that your activity 1078e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * may be paused and resumed. Further, granting some permissions may require 1079e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * a restart of you application. In such a case, the system will recreate the 1080e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * activity stack before delivering the result to {@link 1081e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * #onRequestPermissionsResult(int, String[], int[])}. 1082e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * </p> 1083e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * <p> 1084e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * When checking whether you have a permission you should use {@link 1085e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * android.content.Context#checkSelfPermission(String)}. 1086e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * </p> 1087e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * <p> 10882750390fbdc2e7037a7e10141d23f2068ae8c2d7Svet Ganov * Calling this API for permissions already granted to your app would show UI 10892750390fbdc2e7037a7e10141d23f2068ae8c2d7Svet Ganov * to the user to decided whether the app can still hold these permissions. This 10902750390fbdc2e7037a7e10141d23f2068ae8c2d7Svet Ganov * can be useful if the way your app uses the data guarded by the permissions 10912750390fbdc2e7037a7e10141d23f2068ae8c2d7Svet Ganov * changes significantly. 10922750390fbdc2e7037a7e10141d23f2068ae8c2d7Svet Ganov * </p> 10932750390fbdc2e7037a7e10141d23f2068ae8c2d7Svet Ganov * <p> 1094e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * A sample permissions request looks like this: 1095e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * </p> 1096e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * <code><pre><p> 1097e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * private void showContacts() { 1098e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * if (getActivity().checkSelfPermission(Manifest.permission.READ_CONTACTS) 1099e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * != PackageManager.PERMISSION_GRANTED) { 1100e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, 1101e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * PERMISSIONS_REQUEST_READ_CONTACTS); 1102e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * } else { 1103e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * doShowContacts(); 1104e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * } 1105e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * } 1106e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * 1107e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * {@literal @}Override 1108e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * public void onRequestPermissionsResult(int requestCode, String[] permissions, 1109e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * int[] grantResults) { 1110e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * if (requestCode == PERMISSIONS_REQUEST_READ_CONTACTS 1111e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * && grantResults[0] == PackageManager.PERMISSION_GRANTED) { 1112e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * doShowContacts(); 1113e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * } 1114e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * } 1115e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * </code></pre></p> 1116e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * 1117e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @param permissions The requested permissions. 1118e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @param requestCode Application specific request code to match with a result 1119e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * reported to {@link #onRequestPermissionsResult(int, String[], int[])}. 1120e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * 1121e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @see #onRequestPermissionsResult(int, String[], int[]) 1122e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @see android.content.Context#checkSelfPermission(String) 1123e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav */ 1124e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav public final void requestPermissions(@NonNull String[] permissions, int requestCode) { 1125e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav if (mHost == null) { 1126e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav throw new IllegalStateException("Fragment " + this + " not attached to Activity"); 1127e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav } 11285fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian mHost.onRequestPermissionsFromFragment(this, permissions, requestCode); 1129e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav } 1130e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav 1131e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav /** 1132e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * Callback for the result from requesting permissions. This method 1133e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * is invoked for every call on {@link #requestPermissions(String[], int)}. 1134dddb7e2bbb343ecb435026c13028ba5cd1ae42a5Svet Ganov * <p> 1135dddb7e2bbb343ecb435026c13028ba5cd1ae42a5Svet Ganov * <strong>Note:</strong> It is possible that the permissions request interaction 1136dddb7e2bbb343ecb435026c13028ba5cd1ae42a5Svet Ganov * with the user is interrupted. In this case you will receive empty permissions 1137dddb7e2bbb343ecb435026c13028ba5cd1ae42a5Svet Ganov * and results arrays which should be treated as a cancellation. 1138dddb7e2bbb343ecb435026c13028ba5cd1ae42a5Svet Ganov * </p> 1139e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * 1140e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @param requestCode The request code passed in {@link #requestPermissions(String[], int)}. 1141e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @param permissions The requested permissions. Never null. 1142e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @param grantResults The grant results for the corresponding permissions 1143e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * which is either {@link android.content.pm.PackageManager#PERMISSION_GRANTED} 1144e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * or {@link android.content.pm.PackageManager#PERMISSION_DENIED}. Never null. 1145e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * 1146e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @see #requestPermissions(String[], int) 1147e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav */ 1148e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, 1149e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav @NonNull int[] grantResults) { 1150e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav /* callback - do nothing */ 1151e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav } 1152e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav 1153e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav /** 1154e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * Gets whether you should show UI with rationale for requesting a permission. 1155e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * You should do this only if you do not have the permission and the context in 1156e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * which the permission is requested does not clearly communicate to the user 1157e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * what would be the benefit from granting this permission. 1158e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * <p> 1159e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * For example, if you write a camera app, requesting the camera permission 1160e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * would be expected by the user and no rationale for why it is requested is 1161e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * needed. If however, the app needs location for tagging photos then a non-tech 1162e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * savvy user may wonder how location is related to taking photos. In this case 1163e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * you may choose to show UI with rationale of requesting this permission. 1164e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * </p> 1165e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * 1166e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @param permission A permission your app wants to request. 1167e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @return Whether you can show permission rationale UI. 1168e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * 1169e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @see Context#checkSelfPermission(String) 1170e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @see #requestPermissions(String[], int) 1171e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav * @see #onRequestPermissionsResult(int, String[], int[]) 1172e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav */ 1173e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav public boolean shouldShowRequestPermissionRationale(@NonNull String permission) { 1174e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav if (mHost != null) { 1175e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav return mHost.onShouldShowRequestPermissionRationale(permission); 1176e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav } 1177e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav return false; 1178e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav } 1179e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav 1180e1e957f536c20ebe2a7e6c417ccb2fd8f7fa845bSvetoslav /** 118196221034e4a23a2abb83f772a0281bb197ac5ac0George Mount * Returns the LayoutInflater used to inflate Views of this Fragment. The default 118296221034e4a23a2abb83f772a0281bb197ac5ac0George Mount * implementation will throw an exception if the Fragment is not attached. 118396221034e4a23a2abb83f772a0281bb197ac5ac0George Mount * 1184995c3504e6c5b1d20368c36193b44a7e6844709dGeorge Mount * @param savedInstanceState If the fragment is being re-created from 1185995c3504e6c5b1d20368c36193b44a7e6844709dGeorge Mount * a previous saved state, this is the state. 118696221034e4a23a2abb83f772a0281bb197ac5ac0George Mount * @return The LayoutInflater used to inflate Views of this Fragment. 1187cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1188b4e1bbef8044fdd791edf6dfc3284b765abbe505Jake Wharton @NonNull 1189b4e1bbef8044fdd791edf6dfc3284b765abbe505Jake Wharton public LayoutInflater onGetLayoutInflater(@Nullable Bundle savedInstanceState) { 11900abeed582ee0a105edb41181d76e8ee034750f22George Mount // TODO: move the implementation in getLayoutInflater to here 11910abeed582ee0a105edb41181d76e8ee034750f22George Mount return getLayoutInflater(savedInstanceState); 11920abeed582ee0a105edb41181d76e8ee034750f22George Mount } 11930abeed582ee0a105edb41181d76e8ee034750f22George Mount 11940abeed582ee0a105edb41181d76e8ee034750f22George Mount /** 11958b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * Returns the cached LayoutInflater used to inflate Views of this Fragment. If 11968b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * {@link #onGetLayoutInflater(Bundle)} has not been called {@link #onGetLayoutInflater(Bundle)} 11978b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * will be called with a {@code null} argument and that value will be cached. 11988b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * <p> 11998b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * The cached LayoutInflater will be replaced immediately prior to 12008b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * {@link #onCreateView(LayoutInflater, ViewGroup, Bundle)} and cleared immediately after 12018b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * {@link #onDetach()}. 12028b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * 12038b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * @return The LayoutInflater used to inflate Views of this Fragment. 12048b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount */ 12058b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount public final LayoutInflater getLayoutInflater() { 12068b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount if (mLayoutInflater == null) { 12078b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount return performGetLayoutInflater(null); 12088b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount } 12098b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount return mLayoutInflater; 12108b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount } 12118b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount 12128b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount /** 12138b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * Calls {@link #onGetLayoutInflater(Bundle)} and caches the result for use by 12148b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * {@link #getLayoutInflater()}. 12158b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * 12168b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * @param savedInstanceState If the fragment is being re-created from 12178b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * a previous saved state, this is the state. 12188b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * @return The LayoutInflater used to inflate Views of this Fragment. 12198b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount */ 1220b4e1bbef8044fdd791edf6dfc3284b765abbe505Jake Wharton @NonNull 1221b4e1bbef8044fdd791edf6dfc3284b765abbe505Jake Wharton LayoutInflater performGetLayoutInflater(@Nullable Bundle savedInstanceState) { 12228b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount LayoutInflater layoutInflater = onGetLayoutInflater(savedInstanceState); 12238b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount mLayoutInflater = layoutInflater; 12248b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount return mLayoutInflater; 12258b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount } 12268b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount 12278b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount /** 12288b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * Override {@link #onGetLayoutInflater(Bundle)} when you need to change the 12298b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * LayoutInflater or call {@link #getLayoutInflater()} when you want to 12308b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * retrieve the current LayoutInflater. 12318b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * 12320abeed582ee0a105edb41181d76e8ee034750f22George Mount * @hide 12338b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * @deprecated Override {@link #onGetLayoutInflater(Bundle)} or call 12348b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount * {@link #getLayoutInflater()} instead of this method. 12350abeed582ee0a105edb41181d76e8ee034750f22George Mount */ 12360abeed582ee0a105edb41181d76e8ee034750f22George Mount @Deprecated 1237b4e1bbef8044fdd791edf6dfc3284b765abbe505Jake Wharton @NonNull 12380abeed582ee0a105edb41181d76e8ee034750f22George Mount @RestrictTo(LIBRARY_GROUP) 1239b4e1bbef8044fdd791edf6dfc3284b765abbe505Jake Wharton public LayoutInflater getLayoutInflater(@Nullable Bundle savedFragmentState) { 124096221034e4a23a2abb83f772a0281bb197ac5ac0George Mount if (mHost == null) { 12410abeed582ee0a105edb41181d76e8ee034750f22George Mount throw new IllegalStateException("onGetLayoutInflater() cannot be executed until the " 124296221034e4a23a2abb83f772a0281bb197ac5ac0George Mount + "Fragment is attached to the FragmentManager."); 124396221034e4a23a2abb83f772a0281bb197ac5ac0George Mount } 12448491eb62f621cd5de4b4caed839be09c77011f53Todd Kennedy LayoutInflater result = mHost.onGetLayoutInflater(); 12450f3dfb28a503b3fb3e51666dd565b0d17eaebfbbAdam Powell getChildFragmentManager(); // Init if needed; use raw implementation below. 12464bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas LayoutInflaterCompat.setFactory2(result, mChildFragmentManager.getLayoutInflaterFactory()); 12470f3dfb28a503b3fb3e51666dd565b0d17eaebfbbAdam Powell return result; 1248cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1249d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 1250cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1251cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when a fragment is being created as part of a view layout 1252cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * inflation, typically from setting the content view of an activity. This 12539277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * may be called immediately after the fragment is created from a <fragment> 1254cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * tag in a layout file. Note this is <em>before</em> the fragment's 1255cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #onAttach(Activity)} has been called; all you should do here is 12569277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * parse the attributes and save them away. 12574bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1258cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <p>This is called every time the fragment is inflated, even if it is 12599277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * being inflated into a new instance with saved state. It typically makes 12609277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * sense to re-parse the parameters each time, to allow them to change with 12619277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * different configurations.</p> 12629277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * 12639277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * <p>Here is a typical implementation of a fragment that can take parameters 12649277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * both through attributes supplied here as well from {@link #getArguments()}:</p> 12659277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * 1266f266a0a76eb23a0a00ae16f823df2af73bff480fAurimas Liutikas * {@sample frameworks/support/samples/Support4Demos/src/main/java/com/example/android/supportv4/app/FragmentArgumentsSupport.java 12679277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * fragment} 12689277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * 12699277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * <p>Note that parsing the XML attributes uses a "styleable" resource. The 12709277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * declaration for the styleable used here is:</p> 12719277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * 1272f266a0a76eb23a0a00ae16f823df2af73bff480fAurimas Liutikas * {@sample frameworks/support/samples/Support4Demos/src/main/res/values/attrs.xml fragment_arguments} 12734bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 12749277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * <p>The fragment can then be declared within its activity's content layout 12759277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * through a tag like this:</p> 12769277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * 1277f266a0a76eb23a0a00ae16f823df2af73bff480fAurimas Liutikas * {@sample frameworks/support/samples/Support4Demos/src/main/res/layout/fragment_arguments_support.xml from_attributes} 12789277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * 12799277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * <p>This fragment can also be created dynamically from arguments given 12809277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * at runtime in the arguments Bundle; here is an example of doing so at 12819277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * creation of the containing activity:</p> 12829277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * 1283f266a0a76eb23a0a00ae16f823df2af73bff480fAurimas Liutikas * {@sample frameworks/support/samples/Support4Demos/src/main/java/com/example/android/supportv4/app/FragmentArgumentsSupport.java 12849277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * create} 12859277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn * 1286d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy * @param context The Activity that is inflating this fragment. 1287cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param attrs The attributes at the tag where the fragment is 1288cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * being created. 1289cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param savedInstanceState If the fragment is being re-created from 1290cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * a previous saved state, this is the state. 1291cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1292916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1293d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy public void onInflate(Context context, AttributeSet attrs, Bundle savedInstanceState) { 1294d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy mCalled = true; 1295d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy final Activity hostActivity = mHost == null ? null : mHost.getActivity(); 1296d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy if (hostActivity != null) { 1297d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy mCalled = false; 1298d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy onInflate(hostActivity, attrs, savedInstanceState); 1299d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy } 1300d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy } 1301d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 1302d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy /** 1303d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy * Called when a fragment is being created as part of a view layout 1304d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy * inflation, typically from setting the content view of an activity. 1305d805095048f6be52cddbd572ee343c4639ba8187Alan Viverette * 1306d805095048f6be52cddbd572ee343c4639ba8187Alan Viverette * @deprecated See {@link #onInflate(Context, AttributeSet, Bundle)}. 1307d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy */ 1308d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy @Deprecated 1309916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 13109277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn public void onInflate(Activity activity, AttributeSet attrs, Bundle savedInstanceState) { 1311cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 1312cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 13139f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 1314cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1315cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell * Called when a fragment is attached as a child of this fragment. 1316cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell * 1317cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell * <p>This is called after the attached fragment's <code>onAttach</code> and before 1318cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell * the attached fragment's <code>onCreate</code> if the fragment has not yet had a previous 1319cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell * call to <code>onCreate</code>.</p> 1320cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell * 1321cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell * @param childFragment child fragment being attached 1322cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell */ 1323cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell public void onAttachFragment(Fragment childFragment) { 1324cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell } 1325cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell 1326cef09fee2126f901aa164f6e89c370ab81cff1b3Adam Powell /** 1327d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy * Called when a fragment is first attached to its context. 1328d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy * {@link #onCreate(Bundle)} will be called after this. 1329d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy */ 1330916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1331d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy public void onAttach(Context context) { 1332d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy mCalled = true; 1333d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy final Activity hostActivity = mHost == null ? null : mHost.getActivity(); 1334d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy if (hostActivity != null) { 1335d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy mCalled = false; 1336d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy onAttach(hostActivity); 1337d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy } 1338d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy } 1339d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 1340d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy /** 1341cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when a fragment is first attached to its activity. 1342cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #onCreate(Bundle)} will be called after this. 1343d805095048f6be52cddbd572ee343c4639ba8187Alan Viverette * 1344d805095048f6be52cddbd572ee343c4639ba8187Alan Viverette * @deprecated See {@link #onAttach(Context)}. 1345cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1346d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy @Deprecated 1347916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1348cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onAttach(Activity activity) { 1349cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 1350cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1351d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 1352cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 135315e593ea3575512d7072240d1db9d74fad8749a3George Mount * Called when a fragment loads an animation. Note that if 135415e593ea3575512d7072240d1db9d74fad8749a3George Mount * {@link FragmentTransaction#setCustomAnimations(int, int)} was called with 135515e593ea3575512d7072240d1db9d74fad8749a3George Mount * {@link Animator} resources instead of {@link Animation} resources, {@code nextAnim} 135615e593ea3575512d7072240d1db9d74fad8749a3George Mount * will be an animator resource. 135715e593ea3575512d7072240d1db9d74fad8749a3George Mount * 135815e593ea3575512d7072240d1db9d74fad8749a3George Mount * @param transit The value set in {@link FragmentTransaction#setTransition(int)} or 0 if not 135915e593ea3575512d7072240d1db9d74fad8749a3George Mount * set. 136015e593ea3575512d7072240d1db9d74fad8749a3George Mount * @param enter {@code true} when the fragment is added/attached/shown or {@code false} when 136115e593ea3575512d7072240d1db9d74fad8749a3George Mount * the fragment is removed/detached/hidden. 136215e593ea3575512d7072240d1db9d74fad8749a3George Mount * @param nextAnim The resource set in 136315e593ea3575512d7072240d1db9d74fad8749a3George Mount * {@link FragmentTransaction#setCustomAnimations(int, int)}, 136415e593ea3575512d7072240d1db9d74fad8749a3George Mount * {@link FragmentTransaction#setCustomAnimations(int, int, int, int)}, or 136515e593ea3575512d7072240d1db9d74fad8749a3George Mount * 0 if neither was called. The value will depend on the current operation. 1366cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 13679277b9e4419c1f0b5236d9b573a7cc0b23d56402Dianne Hackborn public Animation onCreateAnimation(int transit, boolean enter, int nextAnim) { 1368cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return null; 1369cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1370d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 1371cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 137215e593ea3575512d7072240d1db9d74fad8749a3George Mount * Called when a fragment loads an animator. This will be called when 137315e593ea3575512d7072240d1db9d74fad8749a3George Mount * {@link #onCreateAnimation(int, boolean, int)} returns null. Note that if 137415e593ea3575512d7072240d1db9d74fad8749a3George Mount * {@link FragmentTransaction#setCustomAnimations(int, int)} was called with 137515e593ea3575512d7072240d1db9d74fad8749a3George Mount * {@link Animation} resources instead of {@link Animator} resources, {@code nextAnim} 137615e593ea3575512d7072240d1db9d74fad8749a3George Mount * will be an animation resource. 137715e593ea3575512d7072240d1db9d74fad8749a3George Mount * 137815e593ea3575512d7072240d1db9d74fad8749a3George Mount * @param transit The value set in {@link FragmentTransaction#setTransition(int)} or 0 if not 137915e593ea3575512d7072240d1db9d74fad8749a3George Mount * set. 138015e593ea3575512d7072240d1db9d74fad8749a3George Mount * @param enter {@code true} when the fragment is added/attached/shown or {@code false} when 138115e593ea3575512d7072240d1db9d74fad8749a3George Mount * the fragment is removed/detached/hidden. 138215e593ea3575512d7072240d1db9d74fad8749a3George Mount * @param nextAnim The resource set in 138315e593ea3575512d7072240d1db9d74fad8749a3George Mount * {@link FragmentTransaction#setCustomAnimations(int, int)}, 138415e593ea3575512d7072240d1db9d74fad8749a3George Mount * {@link FragmentTransaction#setCustomAnimations(int, int, int, int)}, or 138515e593ea3575512d7072240d1db9d74fad8749a3George Mount * 0 if neither was called. The value will depend on the current operation. 138615e593ea3575512d7072240d1db9d74fad8749a3George Mount */ 138715e593ea3575512d7072240d1db9d74fad8749a3George Mount public Animator onCreateAnimator(int transit, boolean enter, int nextAnim) { 138815e593ea3575512d7072240d1db9d74fad8749a3George Mount return null; 138915e593ea3575512d7072240d1db9d74fad8749a3George Mount } 139015e593ea3575512d7072240d1db9d74fad8749a3George Mount 139115e593ea3575512d7072240d1db9d74fad8749a3George Mount /** 1392cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called to do initial creation of a fragment. This is called after 1393cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #onAttach(Activity)} and before 1394cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #onCreateView(LayoutInflater, ViewGroup, Bundle)}. 13954bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1396cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <p>Note that this can be called while the fragment's activity is 1397cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * still in the process of being created. As such, you can not rely 1398cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * on things like the activity's content view hierarchy being initialized 1399cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * at this point. If you want to do work once the activity itself is 1400cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * created, see {@link #onActivityCreated(Bundle)}. 1401277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell * 1402277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell * <p>Any restored child fragments will be created before the base 1403277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell * <code>Fragment.onCreate</code> method returns.</p> 14044bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1405cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param savedInstanceState If the fragment is being re-created from 1406cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * a previous saved state, this is the state. 1407cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1408916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1409c861fd8b28b0b878ccc194ee6099b3b1bc4c3ae8Scott Kennedy public void onCreate(@Nullable Bundle savedInstanceState) { 1410cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 14119375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell restoreChildFragmentState(savedInstanceState); 1412fd15fbacc1d0cb92f2edf72137e4940be2547aa4Adam Powell if (mChildFragmentManager != null 1413fd15fbacc1d0cb92f2edf72137e4940be2547aa4Adam Powell && !mChildFragmentManager.isStateAtLeast(Fragment.CREATED)) { 1414fd15fbacc1d0cb92f2edf72137e4940be2547aa4Adam Powell mChildFragmentManager.dispatchCreate(); 1415fd15fbacc1d0cb92f2edf72137e4940be2547aa4Adam Powell } 14169375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell } 14179375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell 14189375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell /** 14199375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * Restore the state of the child FragmentManager. Called by either 14209375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * {@link #onCreate(Bundle)} for non-retained instance fragments or by 14219375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * {@link FragmentManagerImpl#moveToState(Fragment, int, int, int, boolean)} 14229375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * for retained instance fragments. 14239375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * 14249375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * <p><strong>Postcondition:</strong> if there were child fragments to restore, 14259375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * the child FragmentManager will be instantiated and brought to the {@link #CREATED} state. 14269375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * </p> 14279375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * 14289375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * @param savedInstanceState the savedInstanceState potentially containing fragment info 14299375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell */ 14309375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell void restoreChildFragmentState(@Nullable Bundle savedInstanceState) { 1431277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell if (savedInstanceState != null) { 1432277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell Parcelable p = savedInstanceState.getParcelable( 1433277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell FragmentActivity.FRAGMENTS_TAG); 1434277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell if (p != null) { 1435277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell if (mChildFragmentManager == null) { 1436277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell instantiateChildFragmentManager(); 1437277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell } 1438c077b4cd990a9f220a27ad5eca04828e17136064Adam Powell mChildFragmentManager.restoreAllState(p, mChildNonConfig); 1439c077b4cd990a9f220a27ad5eca04828e17136064Adam Powell mChildNonConfig = null; 1440277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell mChildFragmentManager.dispatchCreate(); 1441277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell } 1442277f9d9ad10cd8e989619ee51c888761029daa98Adam Powell } 1443cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 14440adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 1445cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1446cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called to have the fragment instantiate its user interface view. 1447cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * This is optional, and non-graphical fragments can return null (which 1448cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * is the default implementation). This will be called between 1449cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #onCreate(Bundle)} and {@link #onActivityCreated(Bundle)}. 14504bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1451cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <p>If you return a View from here, you will later be called in 1452cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #onDestroyView} when the view is being released. 14534bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1454cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param inflater The LayoutInflater object that can be used to inflate 1455cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * any views in the fragment, 1456cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param container If non-null, this is the parent view that the fragment's 1457cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * UI should be attached to. The fragment should not add the view itself, 1458cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * but this can be used to generate the LayoutParams of the view. 1459cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param savedInstanceState If non-null, this fragment is being re-constructed 1460cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * from a previous saved state as given here. 14614bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1462cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @return Return the View for the fragment's UI, or null. 1463cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1464c861fd8b28b0b878ccc194ee6099b3b1bc4c3ae8Scott Kennedy @Nullable 1465b4e1bbef8044fdd791edf6dfc3284b765abbe505Jake Wharton public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, 1466a3ff3273e976adf19770651dcf473fa67b38eb22Tor Norbye @Nullable Bundle savedInstanceState) { 1467cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return null; 1468cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 14690adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 1470cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1471e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn * Called immediately after {@link #onCreateView(LayoutInflater, ViewGroup, Bundle)} 1472e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn * has returned, but before any saved state has been restored in to the view. 1473e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn * This gives subclasses a chance to initialize themselves once 1474e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn * they know their view hierarchy has been completely created. The fragment's 1475e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn * view hierarchy is not however attached to its parent at this point. 1476e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn * @param view The View returned by {@link #onCreateView(LayoutInflater, ViewGroup, Bundle)}. 1477e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn * @param savedInstanceState If non-null, this fragment is being re-constructed 1478e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn * from a previous saved state as given here. 1479e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn */ 1480cb3829a5ee01e3c0783019c04d083bde4d0082e8Jake Wharton public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) { 1481e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn } 1482e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn 1483e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn /** 1484cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Get the root view for the fragment's layout (the one returned by {@link #onCreateView}), 1485cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * if provided. 14864bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1487cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @return The fragment's root view, or null if it has no layout. 1488cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1489a3ff3273e976adf19770651dcf473fa67b38eb22Tor Norbye @Nullable 1490cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public View getView() { 1491cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return mView; 1492cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 14934bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 1494cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1495cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when the fragment's activity has been created and this 1496cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * fragment's view hierarchy instantiated. It can be used to do final 1497cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * initialization once these pieces are in place, such as retrieving 1498cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * views or restoring state. It is also useful for fragments that use 1499cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #setRetainInstance(boolean)} to retain their instance, 1500cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * as this callback tells the fragment when it is fully associated with 1501cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * the new activity instance. This is called after {@link #onCreateView} 15020adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * and before {@link #onViewStateRestored(Bundle)}. 15030adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * 1504cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param savedInstanceState If the fragment is being re-created from 1505cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * a previous saved state, this is the state. 1506cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1507916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1508a3ff3273e976adf19770651dcf473fa67b38eb22Tor Norbye public void onActivityCreated(@Nullable Bundle savedInstanceState) { 1509cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 1510cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 15110adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 15120adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn /** 15130adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * Called when all saved state has been restored into the view hierarchy 15140adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * of the fragment. This can be used to do initialization based on saved 15150adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * state that you are letting the view hierarchy track itself, such as 15160adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * whether check box widgets are currently checked. This is called 15170adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * after {@link #onActivityCreated(Bundle)} and before 15180adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * {@link #onStart()}. 15190adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * 15200adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * @param savedInstanceState If the fragment is being re-created from 15210adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn * a previous saved state, this is the state. 15220adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn */ 1523916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1524a3ff3273e976adf19770651dcf473fa67b38eb22Tor Norbye public void onViewStateRestored(@Nullable Bundle savedInstanceState) { 15250adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mCalled = true; 15260adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 15270adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 1528cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1529cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when the Fragment is visible to the user. This is generally 1530cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * tied to {@link Activity#onStart() Activity.onStart} of the containing 1531cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Activity's lifecycle. 1532cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1533916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1534cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onStart() { 1535cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 1536cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1537d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy 1538cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1539cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when the fragment is visible to the user and actively running. 1540cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * This is generally 1541cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * tied to {@link Activity#onResume() Activity.onResume} of the containing 1542cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Activity's lifecycle. 1543cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1544916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1545cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onResume() { 1546cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 1547cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 15484bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 1549cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1550cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called to ask the fragment to save its current dynamic state, so it 1551cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * can later be reconstructed in a new instance of its process is 1552cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * restarted. If a new instance of the fragment later needs to be 1553cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * created, the data you place in the Bundle here will be available 1554cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * in the Bundle given to {@link #onCreate(Bundle)}, 1555cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #onCreateView(LayoutInflater, ViewGroup, Bundle)}, and 1556cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #onActivityCreated(Bundle)}. 1557cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * 1558cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <p>This corresponds to {@link Activity#onSaveInstanceState(Bundle) 1559cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Activity.onSaveInstanceState(Bundle)} and most of the discussion there 1560cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * applies here as well. Note however: <em>this method may be called 1561cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * at any time before {@link #onDestroy()}</em>. There are many situations 1562cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * where a fragment may be mostly torn down (such as when placed on the 1563cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * back stack with no UI showing), but its state will not be saved until 1564cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * its owning activity actually needs to save its state. 1565cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * 1566cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param outState Bundle in which to place your saved state. 1567cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1568abdae2e27083efa81020e1619250fb2864f3bbc4Jake Wharton public void onSaveInstanceState(@NonNull Bundle outState) { 1569cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 15705fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian 15715fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian /** 15725fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian * Called when the Fragment's activity changes from fullscreen mode to multi-window mode and 15735fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian * visa-versa. This is generally tied to {@link Activity#onMultiWindowModeChanged} of the 15745fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian * containing Activity. 15755fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian * 15765fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian * @param isInMultiWindowMode True if the activity is in multi-window mode. 15775fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian */ 15785fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian public void onMultiWindowModeChanged(boolean isInMultiWindowMode) { 15795fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian } 15805fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian 15815fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian /** 15825fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian * Called by the system when the activity changes to and from picture-in-picture mode. This is 15835fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian * generally tied to {@link Activity#onPictureInPictureModeChanged} of the containing Activity. 15845fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian * 15855fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian * @param isInPictureInPictureMode True if the activity is in picture-in-picture mode. 15865fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian */ 15875fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian public void onPictureInPictureModeChanged(boolean isInPictureInPictureMode) { 15885fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian } 15895fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian 159090ac236504c1a4cac7e91f1ffc523334f2a8f399Aurimas Liutikas @Override 1591916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1592cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onConfigurationChanged(Configuration newConfig) { 1593cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 1594cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 15955fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian 1596cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1597cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when the Fragment is no longer resumed. This is generally 1598cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * tied to {@link Activity#onPause() Activity.onPause} of the containing 1599cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Activity's lifecycle. 1600cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1601916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1602cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onPause() { 1603cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 1604cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 16054bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 1606cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1607cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when the Fragment is no longer started. This is generally 1608cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * tied to {@link Activity#onStop() Activity.onStop} of the containing 1609cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Activity's lifecycle. 1610cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1611916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1612cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onStop() { 1613cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 1614cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1615916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell 161690ac236504c1a4cac7e91f1ffc523334f2a8f399Aurimas Liutikas @Override 1617916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1618cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onLowMemory() { 1619cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 1620cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 16214bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 1622cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1623cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when the view previously created by {@link #onCreateView} has 1624cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * been detached from the fragment. The next time the fragment needs 1625cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * to be displayed, a new view will be created. This is called 1626cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * after {@link #onStop()} and before {@link #onDestroy()}. It is called 1627cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <em>regardless</em> of whether {@link #onCreateView} returned a 1628cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * non-null view. Internally it is called after the view's state has 1629cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * been saved but before it has been removed from its parent. 1630cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1631916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1632cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onDestroyView() { 1633cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 1634cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 16354bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 1636cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1637cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when the fragment is no longer in use. This is called 1638cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * after {@link #onStop()} and before {@link #onDetach()}. 1639cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1640916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1641cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onDestroy() { 1642cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 16430d429d5f5bb0d6197d5c7a24b5c0bb5bcd5db8cdIan Lake // Use mStateSaved instead of isStateSaved() since we're past onStop() 16440d429d5f5bb0d6197d5c7a24b5c0bb5bcd5db8cdIan Lake if (mViewModelStore != null && !mHost.mFragmentManager.mStateSaved) { 164541516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake mViewModelStore.clear(); 164641516afc57ee5165d3a4e6c8a36f798d2cf6be4fIan Lake } 1647cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1648cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 1649cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 16509c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn * Called by the fragment manager once this fragment has been removed, 16519c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn * so that we don't have any left-over state if the application decides 16529c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn * to re-use the instance. This only clears state that the framework 16539c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn * internally manages, not things the application sets. 16549c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn */ 16559c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn void initState() { 16569c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mIndex = -1; 16579c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mWho = null; 16589c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mAdded = false; 16599c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mRemoving = false; 16609c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mFromLayout = false; 16619c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mInLayout = false; 16629c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mRestored = false; 16639c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mBackStackNesting = 0; 16649c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mFragmentManager = null; 16656252d78085a07c9d6bb4645a4e8086bf23b0a49aTim Kilbourn mChildFragmentManager = null; 1666d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy mHost = null; 16679c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mFragmentId = 0; 16689c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mContainerId = 0; 16699c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mTag = null; 16709c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mHidden = false; 16719c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mDetached = false; 16729c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn mRetaining = false; 16739c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn } 16749c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn 16759c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn /** 1676cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when the fragment is no longer attached to its activity. This 1677cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * is called after {@link #onDestroy()}. 1678cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1679916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell @CallSuper 1680cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onDetach() { 1681cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn mCalled = true; 1682cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 16834bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 1684cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 16859375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * Initialize the contents of the Fragment host's standard options menu. You 1686cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * should place your menu items in to <var>menu</var>. For this method 1687cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * to be called, you must have first called {@link #setHasOptionsMenu}. See 1688cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link Activity#onCreateOptionsMenu(Menu) Activity.onCreateOptionsMenu} 1689cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * for more information. 16904bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1691cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param menu The options menu in which you place your items. 16924bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1693cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @see #setHasOptionsMenu 1694cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @see #onPrepareOptionsMenu 1695cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @see #onOptionsItemSelected 1696cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1697cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { 1698cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1699cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 1700cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 17019375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell * Prepare the Fragment host's standard options menu to be displayed. This is 1702cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * called right before the menu is shown, every time it is shown. You can 1703cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * use this method to efficiently enable/disable items or otherwise 1704cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * dynamically modify the contents. See 1705cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link Activity#onPrepareOptionsMenu(Menu) Activity.onPrepareOptionsMenu} 1706cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * for more information. 17074bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1708cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param menu The options menu as last shown or first initialized by 1709cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * onCreateOptionsMenu(). 17104bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1711cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @see #setHasOptionsMenu 1712cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @see #onCreateOptionsMenu 1713cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1714cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onPrepareOptionsMenu(Menu menu) { 1715cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1716cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 1717cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1718cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when this fragment's option menu items are no longer being 1719cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * included in the overall options menu. Receiving this call means that 1720cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * the menu needed to be rebuilt, but this fragment's items were not 1721cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * included in the newly built menu (its {@link #onCreateOptionsMenu(Menu, MenuInflater)} 1722cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * was not called). 1723cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1724cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onDestroyOptionsMenu() { 1725cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 17264bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 1727cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1728cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * This hook is called whenever an item in your options menu is selected. 1729cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * The default implementation simply returns false to have the normal 1730cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * processing happen (calling the item's Runnable or sending a message to 1731cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * its Handler as appropriate). You can use this method for any items 1732cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * for which you would like to do processing without those other 1733cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * facilities. 17344bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1735cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <p>Derived classes should call through to the base class for it to 1736cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * perform the default menu handling. 17374bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1738cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param item The menu item that was selected. 17394bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1740cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @return boolean Return false to allow normal menu processing to 1741cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * proceed, true to consume it here. 17424bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1743cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @see #onCreateOptionsMenu 1744cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1745cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public boolean onOptionsItemSelected(MenuItem item) { 1746cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return false; 1747cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1748cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 1749cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1750cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * This hook is called whenever the options menu is being closed (either by the user canceling 1751cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * the menu with the back/menu button, or when an item is selected). 17524bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1753cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param menu The options menu as last shown or first initialized by 1754cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * onCreateOptionsMenu(). 1755cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1756cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onOptionsMenuClosed(Menu menu) { 1757cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 17584bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 1759cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1760cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Called when a context menu for the {@code view} is about to be shown. 1761cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Unlike {@link #onCreateOptionsMenu}, this will be called every 1762cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * time the context menu is about to be shown and should be populated for 1763cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * the view (or item inside the view for {@link AdapterView} subclasses, 1764cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * this can be found in the {@code menuInfo})). 1765cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <p> 1766cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Use {@link #onContextItemSelected(android.view.MenuItem)} to know when an 1767cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * item has been selected. 1768cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <p> 1769cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * The default implementation calls up to 1770cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link Activity#onCreateContextMenu Activity.onCreateContextMenu}, though 1771cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * you can not call this implementation if you don't want that behavior. 1772cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <p> 1773cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * It is not safe to hold onto the context menu after this method returns. 1774cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@inheritDoc} 1775cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1776d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy @Override 1777cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { 1778cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn getActivity().onCreateContextMenu(menu, v, menuInfo); 1779cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1780cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 1781cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1782cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Registers a context menu to be shown for the given view (multiple views 1783cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * can show the context menu). This method will set the 1784cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link OnCreateContextMenuListener} on the view to this fragment, so 1785cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * {@link #onCreateContextMenu(ContextMenu, View, ContextMenuInfo)} will be 1786cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * called when it is time to show the context menu. 17874bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1788cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @see #unregisterForContextMenu(View) 1789cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param view The view that should show a context menu. 1790cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1791cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void registerForContextMenu(View view) { 1792cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn view.setOnCreateContextMenuListener(this); 1793cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 17944bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 1795cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1796cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Prevents a context menu to be shown for the given view. This method will 1797cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * remove the {@link OnCreateContextMenuListener} on the view. 17984bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1799cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @see #registerForContextMenu(View) 1800cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param view The view that should stop showing a context menu. 1801cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1802cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void unregisterForContextMenu(View view) { 1803cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn view.setOnCreateContextMenuListener(null); 1804cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 18054bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas 1806cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 1807cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * This hook is called whenever an item in a context menu is selected. The 1808cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * default implementation simply returns false to have the normal processing 1809cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * happen (calling the item's Runnable or sending a message to its Handler 1810cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * as appropriate). You can use this method for any items for which you 1811cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * would like to do processing without those other facilities. 1812cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <p> 1813cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Use {@link MenuItem#getMenuInfo()} to get extra information set by the 1814cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * View that added this menu item. 1815cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * <p> 1816cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Derived classes should call through to the base class for it to perform 1817cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * the default menu handling. 18184bf8c3d1aeb944a993c946db770604b55f981341Aurimas Liutikas * 1819cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param item The context menu item that was selected. 1820cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @return boolean Return false to allow normal context menu processing to 1821cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * proceed, true to consume it here. 1822cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 1823cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public boolean onContextItemSelected(MenuItem item) { 1824cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn return false; 1825cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 1826e0f27d39b0a4f0ef30ef6446e7b675279961cc94Chris Banes 1827cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn /** 18289306f07b1d66f4974a81f781d29739b30124fff0George Mount * When custom transitions are used with Fragments, the enter transition callback 18299f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * is called when this Fragment is attached or detached when not popping the back stack. 18309f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 18319306f07b1d66f4974a81f781d29739b30124fff0George Mount * @param callback Used to manipulate the shared element transitions on this Fragment 18329f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * when added not as a pop from the back stack. 18339f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 1834b1413bc4de16e05ae0455cad93f1edfbcc4eced2George Mount public void setEnterSharedElementCallback(SharedElementCallback callback) { 1835990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mEnterTransitionCallback = callback; 18369f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 18379f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 18389f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 18399306f07b1d66f4974a81f781d29739b30124fff0George Mount * When custom transitions are used with Fragments, the exit transition callback 18409f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * is called when this Fragment is attached or detached when popping the back stack. 18419f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 18429306f07b1d66f4974a81f781d29739b30124fff0George Mount * @param callback Used to manipulate the shared element transitions on this Fragment 18439f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * when added as a pop from the back stack. 18449f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 1845b1413bc4de16e05ae0455cad93f1edfbcc4eced2George Mount public void setExitSharedElementCallback(SharedElementCallback callback) { 1846990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mExitTransitionCallback = callback; 18479f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 18489f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 18499f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 18509f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Sets the Transition that will be used to move Views into the initial scene. The entering 18519f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Views will be those that are regular Views or ViewGroups that have 18529f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link ViewGroup#isTransitionGroup} return true. Typical Transitions will extend 18539f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link android.transition.Visibility} as entering is governed by changing visibility from 18549f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link View#INVISIBLE} to {@link View#VISIBLE}. If <code>transition</code> is null, 18559f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * entering Views will remain unaffected. 18569f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 18579f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @param transition The Transition to use to move Views into the initial Scene. 18589f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 18592a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton public void setEnterTransition(@Nullable Object transition) { 1860990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mEnterTransition = transition; 18619f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 18629f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 18639f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 18649f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Returns the Transition that will be used to move Views into the initial scene. The entering 18659f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Views will be those that are regular Views or ViewGroups that have 18669f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link ViewGroup#isTransitionGroup} return true. Typical Transitions will extend 18679f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link android.transition.Visibility} as entering is governed by changing visibility from 18689f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link View#INVISIBLE} to {@link View#VISIBLE}. 18699f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 18709f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @return the Transition to use to move Views into the initial Scene. 18719f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 18722a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @Nullable 18739f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount public Object getEnterTransition() { 1874990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 1875990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return null; 1876990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 1877990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mEnterTransition; 18789f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 18799f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 18809f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 18819f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Sets the Transition that will be used to move Views out of the scene when the Fragment is 18829f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * preparing to be removed, hidden, or detached because of popping the back stack. The exiting 18839f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Views will be those that are regular Views or ViewGroups that have 18849f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link ViewGroup#isTransitionGroup} return true. Typical Transitions will extend 18859f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link android.transition.Visibility} as entering is governed by changing visibility from 18869f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link View#VISIBLE} to {@link View#INVISIBLE}. If <code>transition</code> is null, 18879f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * entering Views will remain unaffected. If nothing is set, the default will be to 18889f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * use the same value as set in {@link #setEnterTransition(Object)}. 18899f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 18909f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @param transition The Transition to use to move Views out of the Scene when the Fragment 1891a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * is preparing to close. <code>transition</code> must be an 1892a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * {@link android.transition.Transition android.transition.Transition} or 1893ac5fe7c617c66850fff75a9fce9979c6e5674b0fAurimas Liutikas * {@link androidx.transition.Transition androidx.transition.Transition}. 18949f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 18952a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton public void setReturnTransition(@Nullable Object transition) { 1896990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mReturnTransition = transition; 18979f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 18989f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 18999f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 19009f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Returns the Transition that will be used to move Views out of the scene when the Fragment is 19019f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * preparing to be removed, hidden, or detached because of popping the back stack. The exiting 19029f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Views will be those that are regular Views or ViewGroups that have 19039f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link ViewGroup#isTransitionGroup} return true. Typical Transitions will extend 19049f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link android.transition.Visibility} as entering is governed by changing visibility from 19059f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link View#VISIBLE} to {@link View#INVISIBLE}. If <code>transition</code> is null, 19069f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * entering Views will remain unaffected. 19079f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 19089f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @return the Transition to use to move Views out of the Scene when the Fragment 19099f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * is preparing to close. 19109f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 19112a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @Nullable 19129f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount public Object getReturnTransition() { 1913990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 1914990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return null; 1915990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 1916990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mReturnTransition == USE_DEFAULT_TRANSITION ? getEnterTransition() 1917990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount : mAnimationInfo.mReturnTransition; 19189f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 19199f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 19209f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 19219f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Sets the Transition that will be used to move Views out of the scene when the 19229f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * fragment is removed, hidden, or detached when not popping the back stack. 19239f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * The exiting Views will be those that are regular Views or ViewGroups that 19249f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * have {@link ViewGroup#isTransitionGroup} return true. Typical Transitions will extend 19259f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link android.transition.Visibility} as exiting is governed by changing visibility 19269f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * from {@link View#VISIBLE} to {@link View#INVISIBLE}. If transition is null, the views will 19279f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * remain unaffected. 19289f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 19299f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @param transition The Transition to use to move Views out of the Scene when the Fragment 1930a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * is being closed not due to popping the back stack. <code>transition</code> 1931a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * must be an 1932a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * {@link android.transition.Transition android.transition.Transition} or 1933ac5fe7c617c66850fff75a9fce9979c6e5674b0fAurimas Liutikas * {@link androidx.transition.Transition androidx.transition.Transition}. 19349f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 19352a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton public void setExitTransition(@Nullable Object transition) { 1936990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mExitTransition = transition; 19379f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 19389f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 19399f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 19409f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Returns the Transition that will be used to move Views out of the scene when the 19419f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * fragment is removed, hidden, or detached when not popping the back stack. 19429f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * The exiting Views will be those that are regular Views or ViewGroups that 19439f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * have {@link ViewGroup#isTransitionGroup} return true. Typical Transitions will extend 19449f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link android.transition.Visibility} as exiting is governed by changing visibility 19459f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * from {@link View#VISIBLE} to {@link View#INVISIBLE}. If transition is null, the views will 19469f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * remain unaffected. 19479f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 19489f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @return the Transition to use to move Views out of the Scene when the Fragment 19499f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * is being closed not due to popping the back stack. 19509f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 19512a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @Nullable 19529f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount public Object getExitTransition() { 1953990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 1954990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return null; 1955990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 1956990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mExitTransition; 19579f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 19589f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 19599f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 19609f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Sets the Transition that will be used to move Views in to the scene when returning due 19619f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * to popping a back stack. The entering Views will be those that are regular Views 19629f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * or ViewGroups that have {@link ViewGroup#isTransitionGroup} return true. Typical Transitions 19639f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * will extend {@link android.transition.Visibility} as exiting is governed by changing 19649f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * visibility from {@link View#VISIBLE} to {@link View#INVISIBLE}. If transition is null, 19659f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * the views will remain unaffected. If nothing is set, the default will be to use the same 19669f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * transition as {@link #setExitTransition(Object)}. 19679f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 19689f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @param transition The Transition to use to move Views into the scene when reentering from a 1969a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * previously-started Activity. <code>transition</code> 1970a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * must be an 1971a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * {@link android.transition.Transition android.transition.Transition} or 1972ac5fe7c617c66850fff75a9fce9979c6e5674b0fAurimas Liutikas * {@link androidx.transition.Transition androidx.transition.Transition}. 19739f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 19742a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton public void setReenterTransition(@Nullable Object transition) { 1975990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mReenterTransition = transition; 19769f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 19779f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 19789f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 19799f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Returns the Transition that will be used to move Views in to the scene when returning due 19809f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * to popping a back stack. The entering Views will be those that are regular Views 19819f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * or ViewGroups that have {@link ViewGroup#isTransitionGroup} return true. Typical Transitions 19829f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * will extend {@link android.transition.Visibility} as exiting is governed by changing 19839f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * visibility from {@link View#VISIBLE} to {@link View#INVISIBLE}. If transition is null, 19849f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * the views will remain unaffected. If nothing is set, the default will be to use the same 19859f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * transition as {@link #setExitTransition(Object)}. 19869f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 19879f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @return the Transition to use to move Views into the scene when reentering from a 19889f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * previously-started Activity. 19899f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 19909f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount public Object getReenterTransition() { 1991990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 1992990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return null; 1993990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 1994990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mReenterTransition == USE_DEFAULT_TRANSITION ? getExitTransition() 1995990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount : mAnimationInfo.mReenterTransition; 19969f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 19979f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 19989f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 19999f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Sets the Transition that will be used for shared elements transferred into the content 20009f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Scene. Typical Transitions will affect size and location, such as 20019f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link android.transition.ChangeBounds}. A null 20029f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * value will cause transferred shared elements to blink to the final position. 20039f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 20049f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @param transition The Transition to use for shared elements transferred into the content 2005a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * Scene. <code>transition</code> must be an 2006a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * {@link android.transition.Transition android.transition.Transition} or 2007ac5fe7c617c66850fff75a9fce9979c6e5674b0fAurimas Liutikas * {@link androidx.transition.Transition androidx.transition.Transition}. 20089f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 20092a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton public void setSharedElementEnterTransition(@Nullable Object transition) { 2010990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mSharedElementEnterTransition = transition; 20119f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 20129f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 20139f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 20149f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Returns the Transition that will be used for shared elements transferred into the content 20159f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Scene. Typical Transitions will affect size and location, such as 20169f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link android.transition.ChangeBounds}. A null 20179f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * value will cause transferred shared elements to blink to the final position. 20189f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 20199f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @return The Transition to use for shared elements transferred into the content 20209f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Scene. 20219f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 20222a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @Nullable 20239f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount public Object getSharedElementEnterTransition() { 2024990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2025990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return null; 2026990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2027990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mSharedElementEnterTransition; 20289f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 20299f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 20309f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 20319f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Sets the Transition that will be used for shared elements transferred back during a 20329f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * pop of the back stack. This Transition acts in the leaving Fragment. 20339f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Typical Transitions will affect size and location, such as 20349f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link android.transition.ChangeBounds}. A null 20359f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * value will cause transferred shared elements to blink to the final position. 20369f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * If no value is set, the default will be to use the same value as 20379f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link #setSharedElementEnterTransition(Object)}. 20389f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 20399f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @param transition The Transition to use for shared elements transferred out of the content 2040a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * Scene. <code>transition</code> must be an 2041a318550a4904d11021bbf03f4d3970e7f9a61036Andrew Solovay * {@link android.transition.Transition android.transition.Transition} or 2042ac5fe7c617c66850fff75a9fce9979c6e5674b0fAurimas Liutikas * {@link androidx.transition.Transition androidx.transition.Transition}. 20439f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 20442a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton public void setSharedElementReturnTransition(@Nullable Object transition) { 2045990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mSharedElementReturnTransition = transition; 20469f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 20479f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 20489f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 20499f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Return the Transition that will be used for shared elements transferred back during a 20509f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * pop of the back stack. This Transition acts in the leaving Fragment. 20519f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Typical Transitions will affect size and location, such as 20529f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link android.transition.ChangeBounds}. A null 20539f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * value will cause transferred shared elements to blink to the final position. 20549f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * If no value is set, the default will be to use the same value as 20559f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * {@link #setSharedElementEnterTransition(Object)}. 20569f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 20579f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @return The Transition to use for shared elements transferred out of the content 20589f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Scene. 20599f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 20602a37c0088889b865ee9a044c49f58d82a4e75786Jake Wharton @Nullable 20619f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount public Object getSharedElementReturnTransition() { 2062990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2063990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return null; 2064990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2065990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mSharedElementReturnTransition == USE_DEFAULT_TRANSITION 2066990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ? getSharedElementEnterTransition() 2067990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount : mAnimationInfo.mSharedElementReturnTransition; 20689f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 20699f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 20709f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 20719f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Sets whether the the exit transition and enter transition overlap or not. 20729f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * When true, the enter transition will start as soon as possible. When false, the 20739f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * enter transition will wait until the exit transition completes before starting. 20749f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 20759f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @param allow true to start the enter transition when possible or false to 20769f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * wait until the exiting transition completes. 20779f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 20789f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount public void setAllowEnterTransitionOverlap(boolean allow) { 2079990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mAllowEnterTransitionOverlap = allow; 20809f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 20819f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 20829f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 20839f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Returns whether the the exit transition and enter transition overlap or not. 20849f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * When true, the enter transition will start as soon as possible. When false, the 20859f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * enter transition will wait until the exit transition completes before starting. 20869f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 20879f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @return true when the enter transition should start as soon as possible or false to 20889f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * when it should wait until the exiting transition completes. 20899f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 20909f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount public boolean getAllowEnterTransitionOverlap() { 2091990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return (mAnimationInfo == null || mAnimationInfo.mAllowEnterTransitionOverlap == null) 2092990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ? true : mAnimationInfo.mAllowEnterTransitionOverlap; 20939f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 20949f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 20959f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 20969f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Sets whether the the return transition and reenter transition overlap or not. 20979f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * When true, the reenter transition will start as soon as possible. When false, the 20989f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * reenter transition will wait until the return transition completes before starting. 20999f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 21009f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @param allow true to start the reenter transition when possible or false to wait until the 21019f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * return transition completes. 21029f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 21039f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount public void setAllowReturnTransitionOverlap(boolean allow) { 2104990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mAllowReturnTransitionOverlap = allow; 21059f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 21069f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 21079f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 21089f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * Returns whether the the return transition and reenter transition overlap or not. 21099f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * When true, the reenter transition will start as soon as possible. When false, the 21109f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * reenter transition will wait until the return transition completes before starting. 21119f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * 21129f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * @return true to start the reenter transition when possible or false to wait until the 21139f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount * return transition completes. 21149f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount */ 21159f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount public boolean getAllowReturnTransitionOverlap() { 2116990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return (mAnimationInfo == null || mAnimationInfo.mAllowReturnTransitionOverlap == null) 2117990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ? true : mAnimationInfo.mAllowReturnTransitionOverlap; 2118990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2119990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2120990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount /** 2121990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * Postpone the entering Fragment transition until {@link #startPostponedEnterTransition()} 2122990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * or {@link FragmentManager#executePendingTransactions()} has been called. 2123990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * <p> 2124990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * This method gives the Fragment the ability to delay Fragment animations 2125990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * until all data is loaded. Until then, the added, shown, and 2126990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * attached Fragments will be INVISIBLE and removed, hidden, and detached Fragments won't 2127990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * be have their Views removed. The transaction runs when all postponed added Fragments in the 2128990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * transaction have called {@link #startPostponedEnterTransition()}. 2129990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * <p> 2130990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * This method should be called before being added to the FragmentTransaction or 2131990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * in {@link #onCreate(Bundle), {@link #onAttach(Context)}, or 2132990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * {@link #onCreateView(LayoutInflater, ViewGroup, Bundle)}}. 2133990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * {@link #startPostponedEnterTransition()} must be called to allow the Fragment to 2134990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * start the transitions. 2135990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * <p> 2136990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * When a FragmentTransaction is started that may affect a postponed FragmentTransaction, 2137990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * based on which containers are in their operations, the postponed FragmentTransaction 2138990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * will have its start triggered. The early triggering may result in faulty or nonexistent 2139990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * animations in the postponed transaction. FragmentTransactions that operate only on 2140990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * independent containers will not interfere with each other's postponement. 2141990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * <p> 2142990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * Calling postponeEnterTransition on Fragments with a null View will not postpone the 2143fda5be2466024a656152015c45a7681361d399bbGeorge Mount * transition. Likewise, postponement only works if 2144fda5be2466024a656152015c45a7681361d399bbGeorge Mount * {@link FragmentTransaction#setReorderingAllowed(boolean) FragmentTransaction reordering} is 2145990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * enabled. 2146990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * 2147990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * @see Activity#postponeEnterTransition() 2148fda5be2466024a656152015c45a7681361d399bbGeorge Mount * @see FragmentTransaction#setReorderingAllowed(boolean) 2149990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount */ 2150990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount public void postponeEnterTransition() { 2151990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mEnterTransitionPostponed = true; 2152990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2153990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2154990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount /** 2155990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * Begin postponed transitions after {@link #postponeEnterTransition()} was called. 2156990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * If postponeEnterTransition() was called, you must call startPostponedEnterTransition() 2157990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * or {@link FragmentManager#executePendingTransactions()} to complete the FragmentTransaction. 2158990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * If postponement was interrupted with {@link FragmentManager#executePendingTransactions()}, 2159990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * before {@code startPostponedEnterTransition()}, animations may not run or may execute 2160990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * improperly. 2161990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * 2162990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * @see Activity#startPostponedEnterTransition() 2163990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount */ 2164990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount public void startPostponedEnterTransition() { 2165990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mFragmentManager == null || mFragmentManager.mHost == null) { 2166990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mEnterTransitionPostponed = false; 2167990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } else if (Looper.myLooper() != mFragmentManager.mHost.getHandler().getLooper()) { 2168990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount mFragmentManager.mHost.getHandler().postAtFrontOfQueue(new Runnable() { 2169990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount @Override 2170990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount public void run() { 2171990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount callStartTransitionListener(); 2172990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2173990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount }); 2174990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } else { 2175990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount callStartTransitionListener(); 2176990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2177990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2178990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2179990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount /** 2180990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * Calls the start transition listener. This must be called on the UI thread. 2181990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount */ 2182990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount private void callStartTransitionListener() { 2183990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount final OnStartEnterTransitionListener listener; 2184990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2185990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount listener = null; 2186990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } else { 2187990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount mAnimationInfo.mEnterTransitionPostponed = false; 2188990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount listener = mAnimationInfo.mStartEnterTransitionListener; 2189990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount mAnimationInfo.mStartEnterTransitionListener = null; 2190990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2191990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (listener != null) { 2192990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount listener.onStartEnterTransition(); 2193990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 21949f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount } 21959f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount 21969f4a046cbeb22a24d322a644323b41022ad9d15aGeorge Mount /** 2197cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * Print the Fragments's state into the given stream. 2198cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * 2199cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param prefix Text to print at the front of each line. 2200cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param fd The raw file descriptor that the dump is being sent to. 2201cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param writer The PrintWriter to which you should dump your state. This will be 2202cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * closed for you after you return. 2203cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn * @param args additional arguments to the dump request. 2204cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn */ 2205cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { 2206cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mFragmentId=#"); 2207cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(Integer.toHexString(mFragmentId)); 22085506618c80a292ac275d8b0c1046b446c7f58836Dianne Hackborn writer.print(" mContainerId=#"); 2209cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(Integer.toHexString(mContainerId)); 2210cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(" mTag="); writer.println(mTag); 2211cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mState="); writer.print(mState); 2212cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(" mIndex="); writer.print(mIndex); 2213cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(" mWho="); writer.print(mWho); 2214cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(" mBackStackNesting="); writer.println(mBackStackNesting); 2215cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mAdded="); writer.print(mAdded); 2216cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(" mRemoving="); writer.print(mRemoving); 2217cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(" mFromLayout="); writer.print(mFromLayout); 2218cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(" mInLayout="); writer.println(mInLayout); 2219cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mHidden="); writer.print(mHidden); 2220e4417c91a0bb2fba42a0aaa99edcca1b238af21aDianne Hackborn writer.print(" mDetached="); writer.print(mDetached); 22212a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn writer.print(" mMenuVisible="); writer.print(mMenuVisible); 2222cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(" mHasMenu="); writer.println(mHasMenu); 22232a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn writer.print(prefix); writer.print("mRetainInstance="); writer.print(mRetainInstance); 222479398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell writer.print(" mRetaining="); writer.print(mRetaining); 222579398eaefea45e61d839cf4e0534f0eafee70a09Adam Powell writer.print(" mUserVisibleHint="); writer.println(mUserVisibleHint); 2226cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mFragmentManager != null) { 2227cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mFragmentManager="); 2228cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.println(mFragmentManager); 2229cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 2230d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy if (mHost != null) { 2231d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy writer.print(prefix); writer.print("mHost="); 2232d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy writer.println(mHost); 2233cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 22340adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mParentFragment != null) { 22350adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn writer.print(prefix); writer.print("mParentFragment="); 22360adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn writer.println(mParentFragment); 22370adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 2238cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mArguments != null) { 2239cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mArguments="); writer.println(mArguments); 2240cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 2241cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mSavedFragmentState != null) { 2242cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mSavedFragmentState="); 2243cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.println(mSavedFragmentState); 2244cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 2245cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mSavedViewState != null) { 2246cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mSavedViewState="); 2247cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.println(mSavedViewState); 2248cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 2249cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mTarget != null) { 2250cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mTarget="); writer.print(mTarget); 2251cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(" mTargetRequestCode="); 2252cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.println(mTargetRequestCode); 2253cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 2254990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (getNextAnim() != 0) { 2255990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount writer.print(prefix); writer.print("mNextAnim="); writer.println(getNextAnim()); 2256cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 2257cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mContainer != null) { 2258cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mContainer="); writer.println(mContainer); 2259cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 2260cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mView != null) { 2261cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mView="); writer.println(mView); 2262cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 2263cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn if (mInnerView != null) { 2264cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn writer.print(prefix); writer.print("mInnerView="); writer.println(mView); 2265cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 2266990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (getAnimatingAway() != null) { 2267990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount writer.print(prefix); 2268990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount writer.print("mAnimatingAway="); 2269990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount writer.println(getAnimatingAway()); 2270990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount writer.print(prefix); 2271990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount writer.print("mStateAfterAnimating="); 2272990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount writer.println(getStateAfterAnimating()); 2273cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 2274afe28d91550483f9b7a82076a507151b4defd9baIan Lake LoaderManager.getInstance(this).dump(prefix, fd, writer, args); 22750adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 22760adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn writer.print(prefix); writer.println("Child " + mChildFragmentManager + ":"); 22770adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dump(prefix + " ", fd, writer, args); 22780adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 22790adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 22800adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 22810adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn Fragment findFragmentByWho(String who) { 22820adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (who.equals(mWho)) { 22830adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return this; 22840adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 22850adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 22860adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return mChildFragmentManager.findFragmentByWho(who); 22870adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 22880adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return null; 22890adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 22900adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 22910adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn void instantiateChildFragmentManager() { 22921c7e1f738e202226b365c81715b221d2e864fdd5George Mount if (mHost == null) { 22931c7e1f738e202226b365c81715b221d2e864fdd5George Mount throw new IllegalStateException("Fragment has not been attached yet."); 22941c7e1f738e202226b365c81715b221d2e864fdd5George Mount } 2295e0f27d39b0a4f0ef30ef6446e7b675279961cc94Chris Banes mChildFragmentManager = new FragmentManagerImpl(); 2296d608cf6e08769bf320c1b595cbbd9a7664160449Todd Kennedy mChildFragmentManager.attachController(mHost, new FragmentContainer() { 22970adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn @Override 22980fb3ec354da6c1f3ed1777bca5270710cc537e92Scott Kennedy @Nullable 22998491eb62f621cd5de4b4caed839be09c77011f53Todd Kennedy public View onFindViewById(int id) { 23000adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mView == null) { 23010adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn throw new IllegalStateException("Fragment does not have a view"); 23020adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 23030adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return mView.findViewById(id); 23040adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 23057516316ffdf6fbf7b248c615404831191daa66a4George Mount 23067516316ffdf6fbf7b248c615404831191daa66a4George Mount @Override 23078491eb62f621cd5de4b4caed839be09c77011f53Todd Kennedy public boolean onHasView() { 23087516316ffdf6fbf7b248c615404831191daa66a4George Mount return (mView != null); 23097516316ffdf6fbf7b248c615404831191daa66a4George Mount } 23104aebb5be19bbf9314e7474dd62df8dd915313436Adam Powell 23114aebb5be19bbf9314e7474dd62df8dd915313436Adam Powell @Override 23124aebb5be19bbf9314e7474dd62df8dd915313436Adam Powell public Fragment instantiate(Context context, String className, Bundle arguments) { 23134aebb5be19bbf9314e7474dd62df8dd915313436Adam Powell return mHost.instantiate(context, className, arguments); 23144aebb5be19bbf9314e7474dd62df8dd915313436Adam Powell } 23150adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn }, this); 23160adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 23170adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 23180adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn void performCreate(Bundle savedInstanceState) { 23190adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 23200adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.noteStateNotSaved(); 23210adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 232220735a45289fdad3d5d31228992e0dccd3d5dd4fAdam Powell mState = CREATED; 23230adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mCalled = false; 23240adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onCreate(savedInstanceState); 2325e97d1f2defa08e9bff9d39d6157981e30407e90aGeorge Mount mIsCreated = true; 23260adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mCalled) { 23270adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn throw new SuperNotCalledException("Fragment " + this 23280adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn + " did not call through to super.onCreate()"); 23290adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 2330c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets mLifecycleRegistry.handleLifecycleEvent(Lifecycle.Event.ON_CREATE); 23310adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 23320adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 2333b4e1bbef8044fdd791edf6dfc3284b765abbe505Jake Wharton View performCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, 2334b4e1bbef8044fdd791edf6dfc3284b765abbe505Jake Wharton @Nullable Bundle savedInstanceState) { 23350adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 23360adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.noteStateNotSaved(); 23370adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 233837149f137aad1b2ec06df63807cef6713da3ca2fAdam Powell mPerformedCreateView = true; 23390adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return onCreateView(inflater, container, savedInstanceState); 23400adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 23410adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 23420adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn void performActivityCreated(Bundle savedInstanceState) { 23430adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 23440adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.noteStateNotSaved(); 23450adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 234620735a45289fdad3d5d31228992e0dccd3d5dd4fAdam Powell mState = ACTIVITY_CREATED; 23470adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mCalled = false; 23480adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onActivityCreated(savedInstanceState); 23490adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mCalled) { 23500adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn throw new SuperNotCalledException("Fragment " + this 23510adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn + " did not call through to super.onActivityCreated()"); 23520adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 23530adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 23540adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchActivityCreated(); 23550adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 2356cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 2357cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn 23589c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn void performStart() { 23590adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 23600adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.noteStateNotSaved(); 23610adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.execPendingActions(); 23620adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 236320735a45289fdad3d5d31228992e0dccd3d5dd4fAdam Powell mState = STARTED; 23640adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mCalled = false; 23659c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn onStart(); 23660adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mCalled) { 23670adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn throw new SuperNotCalledException("Fragment " + this 23680adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn + " did not call through to super.onStart()"); 23690adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 23700adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 23710adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchStart(); 23720adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 2373c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets mLifecycleRegistry.handleLifecycleEvent(Lifecycle.Event.ON_START); 23749c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn } 23759c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn 23760adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn void performResume() { 23770adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 23780adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.noteStateNotSaved(); 23790adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.execPendingActions(); 23800adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 238120735a45289fdad3d5d31228992e0dccd3d5dd4fAdam Powell mState = RESUMED; 23820adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mCalled = false; 23830adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onResume(); 23840adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mCalled) { 23850adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn throw new SuperNotCalledException("Fragment " + this 23860adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn + " did not call through to super.onResume()"); 23870adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 23880adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 23890adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchResume(); 23900adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.execPendingActions(); 23910adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 2392c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets mLifecycleRegistry.handleLifecycleEvent(Lifecycle.Event.ON_RESUME); 23930adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 23940adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 23950765353c002bfdf681c982565810aa4be3499dd0George Mount void noteStateNotSaved() { 23960765353c002bfdf681c982565810aa4be3499dd0George Mount if (mChildFragmentManager != null) { 23970765353c002bfdf681c982565810aa4be3499dd0George Mount mChildFragmentManager.noteStateNotSaved(); 23980765353c002bfdf681c982565810aa4be3499dd0George Mount } 23990765353c002bfdf681c982565810aa4be3499dd0George Mount } 24000765353c002bfdf681c982565810aa4be3499dd0George Mount 24015fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian void performMultiWindowModeChanged(boolean isInMultiWindowMode) { 24025fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian onMultiWindowModeChanged(isInMultiWindowMode); 24035fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian if (mChildFragmentManager != null) { 24045fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian mChildFragmentManager.dispatchMultiWindowModeChanged(isInMultiWindowMode); 24055fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian } 24065fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian } 24075fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian 24085fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian void performPictureInPictureModeChanged(boolean isInPictureInPictureMode) { 24095fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian onPictureInPictureModeChanged(isInPictureInPictureMode); 24105fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian if (mChildFragmentManager != null) { 24115fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian mChildFragmentManager.dispatchPictureInPictureModeChanged(isInPictureInPictureMode); 24125fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian } 24135fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian } 24145fa6d3dd3f408ceb2ff7368fd0259713d9382ad8Andrii Kulian 24150adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn void performConfigurationChanged(Configuration newConfig) { 24160adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onConfigurationChanged(newConfig); 24170adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 24180adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchConfigurationChanged(newConfig); 24190adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24200adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24210adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 24220adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn void performLowMemory() { 24230adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onLowMemory(); 24240adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 24250adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchLowMemory(); 24260adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24270adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24280adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 24290adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn /* 24300adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn void performTrimMemory(int level) { 24310adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onTrimMemory(level); 24320adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 24330adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchTrimMemory(level); 24340adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24350adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24360adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn */ 24370adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 24380adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn boolean performCreateOptionsMenu(Menu menu, MenuInflater inflater) { 24390adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn boolean show = false; 24400adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mHidden) { 24410adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mHasMenu && mMenuVisible) { 24420adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn show = true; 24430adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onCreateOptionsMenu(menu, inflater); 24440adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24450adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 24460adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn show |= mChildFragmentManager.dispatchCreateOptionsMenu(menu, inflater); 24470adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24480adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24490adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return show; 24500adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24510adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 24520adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn boolean performPrepareOptionsMenu(Menu menu) { 24530adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn boolean show = false; 24540adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mHidden) { 24550adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mHasMenu && mMenuVisible) { 24560adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn show = true; 24570adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onPrepareOptionsMenu(menu); 24580adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24590adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 24600adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn show |= mChildFragmentManager.dispatchPrepareOptionsMenu(menu); 24610adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24620adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24630adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return show; 24640adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24650adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 24660adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn boolean performOptionsItemSelected(MenuItem item) { 24670adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mHidden) { 24680adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mHasMenu && mMenuVisible) { 24690adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (onOptionsItemSelected(item)) { 24700adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return true; 24710adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24720adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24730adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 24740adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager.dispatchOptionsItemSelected(item)) { 24750adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return true; 24760adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24770adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24780adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24790adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return false; 24800adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24810adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 24820adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn boolean performContextItemSelected(MenuItem item) { 24830adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mHidden) { 24840adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (onContextItemSelected(item)) { 24850adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return true; 24860adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24870adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 24880adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager.dispatchContextItemSelected(item)) { 24890adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return true; 24900adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24910adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24920adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24930adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn return false; 24940adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 24950adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 24960adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn void performOptionsMenuClosed(Menu menu) { 24970adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mHidden) { 24980adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mHasMenu && mMenuVisible) { 24990adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onOptionsMenuClosed(menu); 25000adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 25010adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 25020adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchOptionsMenuClosed(menu); 25030adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 25040adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 25050adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 25060adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 25070adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn void performSaveInstanceState(Bundle outState) { 25080adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onSaveInstanceState(outState); 25090adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 25100adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn Parcelable p = mChildFragmentManager.saveAllState(); 25110adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (p != null) { 25120adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn outState.putParcelable(FragmentActivity.FRAGMENTS_TAG, p); 25130adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 25140adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 25150adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 25160adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 25170adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn void performPause() { 2518c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets mLifecycleRegistry.handleLifecycleEvent(Lifecycle.Event.ON_PAUSE); 25190adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 25200adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchPause(); 25210adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 252220735a45289fdad3d5d31228992e0dccd3d5dd4fAdam Powell mState = STARTED; 25230adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mCalled = false; 25240adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onPause(); 25250adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mCalled) { 25260adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn throw new SuperNotCalledException("Fragment " + this 25270adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn + " did not call through to super.onPause()"); 25280adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 25290adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 25300adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 2531cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn void performStop() { 2532c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets mLifecycleRegistry.handleLifecycleEvent(Lifecycle.Event.ON_STOP); 25330adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 25340adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchStop(); 25350adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 253620735a45289fdad3d5d31228992e0dccd3d5dd4fAdam Powell mState = STOPPED; 25370adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mCalled = false; 2538cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn onStop(); 25390adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mCalled) { 25400adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn throw new SuperNotCalledException("Fragment " + this 25410adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn + " did not call through to super.onStop()"); 25420adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 2543681a6fb06bdedb8661a68a1b9e34727b6059aa39Dianne Hackborn } 2544681a6fb06bdedb8661a68a1b9e34727b6059aa39Dianne Hackborn 2545218c1e661578e2a17928f7dbb590b43d1c79aeb7Dianne Hackborn void performReallyStop() { 25460adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 25470adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchReallyStop(); 25480adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 254920735a45289fdad3d5d31228992e0dccd3d5dd4fAdam Powell mState = ACTIVITY_CREATED; 2550cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn } 25519c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn 25529c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn void performDestroyView() { 25530adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 25540adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchDestroyView(); 25550adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 255620735a45289fdad3d5d31228992e0dccd3d5dd4fAdam Powell mState = CREATED; 25570adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mCalled = false; 25589c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn onDestroyView(); 25590adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mCalled) { 25600adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn throw new SuperNotCalledException("Fragment " + this 25610adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn + " did not call through to super.onDestroyView()"); 25620adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 2563afe28d91550483f9b7a82076a507151b4defd9baIan Lake // Handles the detach/reattach case where the view hierarchy 2564afe28d91550483f9b7a82076a507151b4defd9baIan Lake // is destroyed and recreated and an additional call to 2565afe28d91550483f9b7a82076a507151b4defd9baIan Lake // onLoadFinished may be needed to ensure the new view 2566afe28d91550483f9b7a82076a507151b4defd9baIan Lake // hierarchy is populated from data from the Loaders 2567afe28d91550483f9b7a82076a507151b4defd9baIan Lake LoaderManager.getInstance(this).markForRedelivery(); 256837149f137aad1b2ec06df63807cef6713da3ca2fAdam Powell mPerformedCreateView = false; 25699c53b844bd525e6a04e17291efc38713893074cdDianne Hackborn } 25700adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn 25710adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn void performDestroy() { 2572c2986284e6cbb4fd73b5db0145bc01ca83fab59dSergey Vasilinets mLifecycleRegistry.handleLifecycleEvent(Lifecycle.Event.ON_DESTROY); 25730adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (mChildFragmentManager != null) { 25740adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mChildFragmentManager.dispatchDestroy(); 25750adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 257620735a45289fdad3d5d31228992e0dccd3d5dd4fAdam Powell mState = INITIALIZING; 25770adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn mCalled = false; 2578e97d1f2defa08e9bff9d39d6157981e30407e90aGeorge Mount mIsCreated = false; 25790adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn onDestroy(); 25800adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn if (!mCalled) { 25810adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn throw new SuperNotCalledException("Fragment " + this 25820adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn + " did not call through to super.onDestroy()"); 25830adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 25844706c089880423ee5929d4635c6dfc5c3151b20fGeorge Mount mChildFragmentManager = null; 25850adacc1aa313d757ae1c517152cef838e0f35c13Dianne Hackborn } 25869375145b63d854c64aad99e6e50c5b7e5ba32b95Adam Powell 2587916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell void performDetach() { 2588916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell mCalled = false; 2589916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell onDetach(); 25908b60e88655f6d4191e55b1dd8706e4ae2ae21b04George Mount mLayoutInflater = null; 2591916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell if (!mCalled) { 2592916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell throw new SuperNotCalledException("Fragment " + this 2593916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell + " did not call through to super.onDetach()"); 2594916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell } 2595916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell 2596916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell // Destroy the child FragmentManager if we still have it here. 2597916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell // We won't unless we're retaining our instance and if we do, 2598916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell // our child FragmentManager instance state will have already been saved. 2599916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell if (mChildFragmentManager != null) { 2600916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell if (!mRetaining) { 2601916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell throw new IllegalStateException("Child FragmentManager of " + this + " was not " 2602916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell + " destroyed and this fragment is not retaining instance"); 2603916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell } 2604916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell mChildFragmentManager.dispatchDestroy(); 2605916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell mChildFragmentManager = null; 2606916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell } 2607916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell } 2608916455675ddb34d0eb848b2355550268d82c3ce7Adam Powell 2609990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount void setOnStartEnterTransitionListener(OnStartEnterTransitionListener listener) { 2610990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo(); 2611990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (listener == mAnimationInfo.mStartEnterTransitionListener) { 2612990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return; 2613990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2614990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (listener != null && mAnimationInfo.mStartEnterTransitionListener != null) { 2615990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount throw new IllegalStateException("Trying to set a replacement " 2616990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount + "startPostponedEnterTransition on " + this); 2617990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2618990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo.mEnterTransitionPostponed) { 2619990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount mAnimationInfo.mStartEnterTransitionListener = listener; 2620990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2621990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (listener != null) { 2622990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount listener.startListening(); 2623990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2624990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2625990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2626990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount private AnimationInfo ensureAnimationInfo() { 2627990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2628990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount mAnimationInfo = new AnimationInfo(); 2629990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2630990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo; 2631990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2632990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2633990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount int getNextAnim() { 2634990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2635990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return 0; 2636990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2637990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mNextAnim; 2638990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2639990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2640990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount void setNextAnim(int animResourceId) { 2641990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null && animResourceId == 0) { 2642990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return; // no change! 2643990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2644990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mNextAnim = animResourceId; 2645990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2646990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2647990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount int getNextTransition() { 2648990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2649990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return 0; 2650990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2651990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mNextTransition; 2652990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2653990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2654990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount void setNextTransition(int nextTransition, int nextTransitionStyle) { 2655990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null && nextTransition == 0 && nextTransitionStyle == 0) { 2656990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return; // no change! 2657990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2658990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo(); 2659990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount mAnimationInfo.mNextTransition = nextTransition; 2660990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount mAnimationInfo.mNextTransitionStyle = nextTransitionStyle; 2661990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2662990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2663990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount int getNextTransitionStyle() { 2664990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2665990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return 0; 2666990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2667990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mNextTransitionStyle; 2668990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2669990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2670990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount SharedElementCallback getEnterTransitionCallback() { 2671990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2672990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return null; 2673990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2674990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mEnterTransitionCallback; 2675990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2676990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2677990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount SharedElementCallback getExitTransitionCallback() { 2678990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2679990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return null; 2680990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2681990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mExitTransitionCallback; 2682990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2683990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2684990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount View getAnimatingAway() { 2685990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2686990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return null; 2687990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2688990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mAnimatingAway; 2689990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2690990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2691990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount void setAnimatingAway(View view) { 2692990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mAnimatingAway = view; 2693990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2694990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 269515e593ea3575512d7072240d1db9d74fad8749a3George Mount void setAnimator(Animator animator) { 269615e593ea3575512d7072240d1db9d74fad8749a3George Mount ensureAnimationInfo().mAnimator = animator; 269715e593ea3575512d7072240d1db9d74fad8749a3George Mount } 269815e593ea3575512d7072240d1db9d74fad8749a3George Mount 269915e593ea3575512d7072240d1db9d74fad8749a3George Mount Animator getAnimator() { 270015e593ea3575512d7072240d1db9d74fad8749a3George Mount if (mAnimationInfo == null) { 270115e593ea3575512d7072240d1db9d74fad8749a3George Mount return null; 270215e593ea3575512d7072240d1db9d74fad8749a3George Mount } 270315e593ea3575512d7072240d1db9d74fad8749a3George Mount return mAnimationInfo.mAnimator; 270415e593ea3575512d7072240d1db9d74fad8749a3George Mount } 270515e593ea3575512d7072240d1db9d74fad8749a3George Mount 2706990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount int getStateAfterAnimating() { 2707990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2708990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return 0; 2709990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2710990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mStateAfterAnimating; 2711990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2712990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2713990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount void setStateAfterAnimating(int state) { 2714990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount ensureAnimationInfo().mStateAfterAnimating = state; 2715990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2716990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2717990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount boolean isPostponed() { 2718990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount if (mAnimationInfo == null) { 2719990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return false; 2720990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2721990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount return mAnimationInfo.mEnterTransitionPostponed; 2722990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2723990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2724667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount boolean isHideReplaced() { 2725667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount if (mAnimationInfo == null) { 2726667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount return false; 2727667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount } 2728667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount return mAnimationInfo.mIsHideReplaced; 2729667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount } 2730667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount 2731667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount void setHideReplaced(boolean replaced) { 2732667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount ensureAnimationInfo().mIsHideReplaced = replaced; 2733667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount } 2734667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount 2735990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount /** 2736990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * Used internally to be notified when {@link #startPostponedEnterTransition()} has 2737990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * been called. This listener will only be called once and then be removed from the 2738990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * listeners. 2739990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount */ 2740990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount interface OnStartEnterTransitionListener { 2741990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount void onStartEnterTransition(); 2742990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount void startListening(); 2743990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2744990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2745990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount /** 2746990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * Contains all the animation and transition information for a fragment. This will only 2747990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount * be instantiated for Fragments that have Views. 2748990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount */ 2749990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount static class AnimationInfo { 2750990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // Non-null if the fragment's view hierarchy is currently animating away, 2751990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // meaning we need to wait a bit on completely destroying it. This is the 2752990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // view that is animating. 2753990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount View mAnimatingAway; 2754990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 275515e593ea3575512d7072240d1db9d74fad8749a3George Mount // Non-null if the fragment's view hierarchy is currently animating away with an 275615e593ea3575512d7072240d1db9d74fad8749a3George Mount // animator instead of an animation. 275715e593ea3575512d7072240d1db9d74fad8749a3George Mount Animator mAnimator; 275815e593ea3575512d7072240d1db9d74fad8749a3George Mount 2759990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // If mAnimatingAway != null, this is the state we should move to once the 2760990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // animation is done. 2761990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount int mStateAfterAnimating; 2762990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2763990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // If app has requested a specific animation, this is the one to use. 2764990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount int mNextAnim; 2765990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2766990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // If app has requested a specific transition, this is the one to use. 2767990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount int mNextTransition; 2768990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2769990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // If app has requested a specific transition style, this is the one to use. 2770990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount int mNextTransitionStyle; 2771990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2772990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount private Object mEnterTransition = null; 2773990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount private Object mReturnTransition = USE_DEFAULT_TRANSITION; 2774990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount private Object mExitTransition = null; 2775990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount private Object mReenterTransition = USE_DEFAULT_TRANSITION; 2776990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount private Object mSharedElementEnterTransition = null; 2777990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount private Object mSharedElementReturnTransition = USE_DEFAULT_TRANSITION; 2778990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount private Boolean mAllowReturnTransitionOverlap; 2779990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount private Boolean mAllowEnterTransitionOverlap; 2780990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2781990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount SharedElementCallback mEnterTransitionCallback = null; 2782990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount SharedElementCallback mExitTransitionCallback = null; 2783990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2784990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // True when postponeEnterTransition has been called and startPostponeEnterTransition 2785990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // hasn't been called yet. 2786990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount boolean mEnterTransitionPostponed; 2787990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2788990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // Listener to wait for startPostponeEnterTransition. After being called, it will 2789990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount // be set to null 2790990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount OnStartEnterTransitionListener mStartEnterTransitionListener; 2791990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount 2792667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount // True if the View was hidden, but the transition is handling the hide 2793667ec4150c78bf295b3db1fa4d546def9ade9d20George Mount boolean mIsHideReplaced; 2794990e6fc0326f5948736650c0cb71b6002d443c9cGeorge Mount } 2795cba2e2c881e8e16ea5025b564c94320174d65f01Dianne Hackborn} 2796