PreferenceFragmentCompat.java revision ee1e0dfa158dab873977c50c746749f55a4c1251
16904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler/* 26904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Copyright (C) 2015 The Android Open Source Project 36904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 46904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Licensed under the Apache License, Version 2.0 (the "License"); 56904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * you may not use this file except in compliance with the License. 66904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * You may obtain a copy of the License at 76904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 86904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * http://www.apache.org/licenses/LICENSE-2.0 96904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 106904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Unless required by applicable law or agreed to in writing, software 116904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * distributed under the License is distributed on an "AS IS" BASIS, 126904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 136904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * See the License for the specific language governing permissions and 146904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * limitations under the License 156904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 166904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 176904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerpackage android.support.v7.preference; 186904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 196904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.content.Context; 206904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.content.res.TypedArray; 211fcd004668b5a9038c312e4426031027d8641353Tony Mantlerimport android.graphics.Canvas; 221fcd004668b5a9038c312e4426031027d8641353Tony Mantlerimport android.graphics.Rect; 231fcd004668b5a9038c312e4426031027d8641353Tony Mantlerimport android.graphics.drawable.Drawable; 246904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.os.Bundle; 256904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.os.Handler; 266904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.os.Message; 276904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.support.annotation.Nullable; 286904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.support.annotation.XmlRes; 296904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.support.v4.app.DialogFragment; 306904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.support.v4.app.Fragment; 311fcd004668b5a9038c312e4426031027d8641353Tony Mantlerimport android.support.v4.view.ViewCompat; 326904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.support.v7.widget.LinearLayoutManager; 336904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.support.v7.widget.RecyclerView; 346904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.util.TypedValue; 356904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.view.ContextThemeWrapper; 366904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.view.LayoutInflater; 376904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.view.View; 386904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerimport android.view.ViewGroup; 396904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 406904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler/** 416904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Shows a hierarchy of {@link Preference} objects as 426904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * lists. These preferences will 436904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * automatically save to {@link android.content.SharedPreferences} as the user interacts with 446904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * them. To retrieve an instance of {@link android.content.SharedPreferences} that the 456904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * preference hierarchy in this fragment will use, call 466904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link PreferenceManager#getDefaultSharedPreferences(android.content.Context)} 476904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * with a context in the same package as this fragment. 486904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <p> 496904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Furthermore, the preferences shown will follow the visual style of system 506904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * preferences. It is easy to create a hierarchy of preferences (that can be 516904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * shown on multiple screens) via XML. For these reasons, it is recommended to 526904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * use this fragment (as a superclass) to deal with preferences in applications. 536904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <p> 546904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * A {@link PreferenceScreen} object should be at the top of the preference 556904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * hierarchy. Furthermore, subsequent {@link PreferenceScreen} in the hierarchy 566904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * denote a screen break--that is the preferences contained within subsequent 576904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link PreferenceScreen} should be shown on another screen. The preference 58ee1e0dfa158dab873977c50c746749f55a4c1251Tony Mantler * framework handles this by calling {@link #onNavigateToScreen(PreferenceScreen)}. 596904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <p> 606904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * The preference hierarchy can be formed in multiple ways: 616904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <li> From an XML file specifying the hierarchy 626904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <li> From different {@link android.app.Activity Activities} that each specify its own 636904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * preferences in an XML file via {@link android.app.Activity} meta-data 646904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <li> From an object hierarchy rooted with {@link PreferenceScreen} 656904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <p> 666904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * To inflate from XML, use the {@link #addPreferencesFromResource(int)}. The 676904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * root element should be a {@link PreferenceScreen}. Subsequent elements can point 686904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * to actual {@link Preference} subclasses. As mentioned above, subsequent 696904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link PreferenceScreen} in the hierarchy will result in the screen break. 706904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <p> 716904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * To specify an object hierarchy rooted with {@link PreferenceScreen}, use 726904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link #setPreferenceScreen(PreferenceScreen)}. 736904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <p> 746904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * As a convenience, this fragment implements a click listener for any 756904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * preference in the current hierarchy, see 766904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link #onPreferenceTreeClick(Preference)}. 776904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 786904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <div class="special reference"> 796904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <h3>Developer Guides</h3> 806904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <p>For information about using {@code PreferenceFragment}, 816904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * read the <a href="{@docRoot}guide/topics/ui/settings.html">Settings</a> 826904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * guide.</p> 836904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * </div> 846904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 856904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <a name="SampleCode"></a> 866904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <h3>Sample Code</h3> 876904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 886904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <p>The following sample code shows a simple preference fragment that is 896904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * populated from a resource. The resource it loads is:</p> 906904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 916904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@sample development/samples/ApiDemos/res/xml/preferences.xml preferences} 926904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 936904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * <p>The fragment implementation itself simply populates the preferences 946904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * when created. Note that the preferences framework takes care of loading 956904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * the current values out of the app preferences and writing them when changed:</p> 966904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 976904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@sample development/samples/ApiDemos/src/com/example/android/apis/preference/FragmentPreferences.java 986904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * fragment} 996904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 1006904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @see Preference 1016904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @see PreferenceScreen 1026904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 1036904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantlerpublic abstract class PreferenceFragmentCompat extends Fragment implements 1046904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler PreferenceManager.OnPreferenceTreeClickListener, 1056904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler PreferenceManager.OnDisplayPreferenceDialogListener, 1066904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler PreferenceManager.OnNavigateToScreenListener, 1076904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler DialogPreference.TargetFragment { 1086904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 1096904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 1106904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Fragment argument used to specify the tag of the desired root 1116904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link android.support.v7.preference.PreferenceScreen} object. 1126904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 1136904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public static final String ARG_PREFERENCE_ROOT = 1146904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler "android.support.v7.preference.PreferenceFragmentCompat.PREFERENCE_ROOT"; 1156904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 1166904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private static final String PREFERENCES_TAG = "android:preferences"; 1176904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 1186904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private static final String DIALOG_FRAGMENT_TAG = 1196904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler "android.support.v7.preference.PreferenceFragment.DIALOG"; 1206904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 1216904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private PreferenceManager mPreferenceManager; 1226904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private RecyclerView mList; 1236904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private boolean mHavePrefs; 1246904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private boolean mInitDone; 1256904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 1266904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private Context mStyledContext; 1276904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 1286904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private int mLayoutResId = R.layout.preference_list_fragment; 1296904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 1301fcd004668b5a9038c312e4426031027d8641353Tony Mantler private final DividerDecoration mDividerDecoration = new DividerDecoration(); 1311fcd004668b5a9038c312e4426031027d8641353Tony Mantler 1326904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private static final int MSG_BIND_PREFERENCES = 1; 1336904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private Handler mHandler = new Handler() { 1346904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler @Override 1356904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void handleMessage(Message msg) { 1366904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler switch (msg.what) { 1376904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 1386904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler case MSG_BIND_PREFERENCES: 1396904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler bindPreferences(); 1406904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler break; 1416904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 1426904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 1436904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler }; 1446904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 1456904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final private Runnable mRequestFocus = new Runnable() { 1466904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void run() { 1476904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mList.focusableViewAvailable(mList); 1486904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 1496904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler }; 1506904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 1516904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 1526904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Interface that PreferenceFragment's containing activity should 1536904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * implement to be able to process preference items that wish to 1546904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * switch to a specified fragment. 1556904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 1566904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public interface OnPreferenceStartFragmentCallback { 1576904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 1586904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Called when the user has clicked on a Preference that has 1596904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * a fragment class name associated with it. The implementation 1606904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * should instantiate and switch to an instance of the given 1616904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * fragment. 162bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler * @param caller The fragment requesting navigation. 163bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler * @param pref The preference requesting the fragment. 164bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler * @return true if the fragment creation has been handled 1656904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 1666904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler boolean onPreferenceStartFragment(PreferenceFragmentCompat caller, Preference pref); 1676904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 1686904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 1696904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 1706904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Interface that PreferenceFragment's containing activity should 1716904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * implement to be able to process preference items that wish to 1726904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * switch to a new screen of preferences. 1736904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 1746904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public interface OnPreferenceStartScreenCallback { 1756904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 1766904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Called when the user has clicked on a PreferenceScreen item in order to navigate to a new 1776904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * screen of preferences. 1786904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param caller The fragment requesting navigation. 1796904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param pref The preference screen to navigate to. 180bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler * @return true if the screen navigation has been handled 1816904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 1826904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler boolean onPreferenceStartScreen(PreferenceFragmentCompat caller, PreferenceScreen pref); 1836904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 1846904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 185bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler public interface OnPreferenceDisplayDialogCallback { 186bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler 187bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler /** 188bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler * 189bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler * @param caller The fragment containing the preference requesting the dialog. 190bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler * @param pref The preference requesting the dialog. 191bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler * @return true if the dialog creation has been handled. 192bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler */ 193bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler boolean onPreferenceDisplayDialog(PreferenceFragmentCompat caller, Preference pref); 194bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler } 195bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler 1966904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler @Override 1976904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void onCreate(Bundle savedInstanceState) { 1986904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler super.onCreate(savedInstanceState); 1996904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final TypedValue tv = new TypedValue(); 2006904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler getActivity().getTheme().resolveAttribute(R.attr.preferenceTheme, tv, true); 2016904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final int theme = tv.resourceId; 2026904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (theme <= 0) { 2036904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler throw new IllegalStateException("Must specify preferenceTheme in theme"); 2046904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 2056904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mStyledContext = new ContextThemeWrapper(getActivity(), theme); 2066904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 2076904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mPreferenceManager = new PreferenceManager(mStyledContext); 2086904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mPreferenceManager.setOnNavigateToScreenListener(this); 2096904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final Bundle args = getArguments(); 2106904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final String rootKey; 2116904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (args != null) { 2126904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler rootKey = getArguments().getString(ARG_PREFERENCE_ROOT); 2136904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } else { 2146904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler rootKey = null; 2156904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 2166904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler onCreatePreferences(savedInstanceState, rootKey); 2176904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 2186904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 2196904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 2206904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Called during {@link #onCreate(Bundle)} to supply the preferences for this fragment. 2216904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Subclasses are expected to call {@link #setPreferenceScreen(PreferenceScreen)} either 2226904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * directly or via helper methods such as {@link #addPreferencesFromResource(int)}. 2236904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 2246904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param savedInstanceState If the fragment is being re-created from 2256904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * a previous saved state, this is the state. 2266904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param rootKey If non-null, this preference fragment should be rooted at the 2276904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link android.support.v7.preference.PreferenceScreen} with this key. 2286904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 2296904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public abstract void onCreatePreferences(Bundle savedInstanceState, String rootKey); 2306904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 2316904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler @Override 2326904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public View onCreateView(LayoutInflater inflater, ViewGroup container, 2336904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler Bundle savedInstanceState) { 2346904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 2356904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler TypedArray a = mStyledContext.obtainStyledAttributes(null, 2366904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler R.styleable.PreferenceFragmentCompat, 2371fcd004668b5a9038c312e4426031027d8641353Tony Mantler R.attr.preferenceFragmentCompatStyle, 2386904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 0); 2396904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 2401fcd004668b5a9038c312e4426031027d8641353Tony Mantler mLayoutResId = a.getResourceId(R.styleable.PreferenceFragmentCompat_android_layout, 2416904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mLayoutResId); 2426904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 2431fcd004668b5a9038c312e4426031027d8641353Tony Mantler final Drawable divider = a.getDrawable( 2441fcd004668b5a9038c312e4426031027d8641353Tony Mantler R.styleable.PreferenceFragmentCompat_android_divider); 2451fcd004668b5a9038c312e4426031027d8641353Tony Mantler final int dividerHeight = a.getInt( 2461fcd004668b5a9038c312e4426031027d8641353Tony Mantler R.styleable.PreferenceFragmentCompat_android_dividerHeight, -1); 2471fcd004668b5a9038c312e4426031027d8641353Tony Mantler 2486904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler a.recycle(); 2496904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 25026442f8503691eccb80169a47ecdcc4e862f4dcfTony Mantler // Need to theme the inflater to pick up the preferenceFragmentListStyle 25126442f8503691eccb80169a47ecdcc4e862f4dcfTony Mantler final TypedValue tv = new TypedValue(); 25226442f8503691eccb80169a47ecdcc4e862f4dcfTony Mantler getActivity().getTheme().resolveAttribute(R.attr.preferenceTheme, tv, true); 25326442f8503691eccb80169a47ecdcc4e862f4dcfTony Mantler final int theme = tv.resourceId; 25426442f8503691eccb80169a47ecdcc4e862f4dcfTony Mantler 25526442f8503691eccb80169a47ecdcc4e862f4dcfTony Mantler final Context themedContext = new ContextThemeWrapper(inflater.getContext(), theme); 25626442f8503691eccb80169a47ecdcc4e862f4dcfTony Mantler final LayoutInflater themedInflater = inflater.cloneInContext(themedContext); 25726442f8503691eccb80169a47ecdcc4e862f4dcfTony Mantler 25826442f8503691eccb80169a47ecdcc4e862f4dcfTony Mantler final View view = themedInflater.inflate(mLayoutResId, container, false); 2596904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 2606904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final View rawListContainer = view.findViewById(R.id.list_container); 2616904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (!(rawListContainer instanceof ViewGroup)) { 2626904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler throw new RuntimeException("Content has view with id attribute 'R.id.list_container' " 2636904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler + "that is not a ViewGroup class"); 2646904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 2656904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 2666904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final ViewGroup listContainer = (ViewGroup) rawListContainer; 2676904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 26826442f8503691eccb80169a47ecdcc4e862f4dcfTony Mantler final RecyclerView listView = onCreateRecyclerView(themedInflater, listContainer, 2696904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler savedInstanceState); 2706904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (listView == null) { 2716904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler throw new RuntimeException("Could not create RecyclerView"); 2726904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 2736904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 2746904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mList = listView; 2751fcd004668b5a9038c312e4426031027d8641353Tony Mantler 2761fcd004668b5a9038c312e4426031027d8641353Tony Mantler listView.addItemDecoration(mDividerDecoration); 2771fcd004668b5a9038c312e4426031027d8641353Tony Mantler setDivider(divider); 2781fcd004668b5a9038c312e4426031027d8641353Tony Mantler if (dividerHeight != -1) { 2791fcd004668b5a9038c312e4426031027d8641353Tony Mantler setDividerHeight(dividerHeight); 2801fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 2811fcd004668b5a9038c312e4426031027d8641353Tony Mantler 2826904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler listContainer.addView(mList); 2836904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mHandler.post(mRequestFocus); 2846904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler return view; 2856904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 2866904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 2871fcd004668b5a9038c312e4426031027d8641353Tony Mantler /** 2881fcd004668b5a9038c312e4426031027d8641353Tony Mantler * Sets the drawable that will be drawn between each item in the list. 2891fcd004668b5a9038c312e4426031027d8641353Tony Mantler * <p> 2901fcd004668b5a9038c312e4426031027d8641353Tony Mantler * <strong>Note:</strong> If the drawable does not have an intrinsic 2911fcd004668b5a9038c312e4426031027d8641353Tony Mantler * height, you should also call {@link #setDividerHeight(int)}. 2921fcd004668b5a9038c312e4426031027d8641353Tony Mantler * 2931fcd004668b5a9038c312e4426031027d8641353Tony Mantler * @param divider the drawable to use 2941fcd004668b5a9038c312e4426031027d8641353Tony Mantler * @attr ref R.styleable#PreferenceFragmentCompat_android_divider 2951fcd004668b5a9038c312e4426031027d8641353Tony Mantler */ 2961fcd004668b5a9038c312e4426031027d8641353Tony Mantler public void setDivider(Drawable divider) { 2971fcd004668b5a9038c312e4426031027d8641353Tony Mantler mDividerDecoration.setDivider(divider); 2981fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 2991fcd004668b5a9038c312e4426031027d8641353Tony Mantler 3001fcd004668b5a9038c312e4426031027d8641353Tony Mantler /** 3011fcd004668b5a9038c312e4426031027d8641353Tony Mantler * Sets the height of the divider that will be drawn between each item in the list. Calling 3021fcd004668b5a9038c312e4426031027d8641353Tony Mantler * this will override the intrinsic height as set by {@link #setDivider(Drawable)} 3031fcd004668b5a9038c312e4426031027d8641353Tony Mantler * 3041fcd004668b5a9038c312e4426031027d8641353Tony Mantler * @param height The new height of the divider in pixels. 3051fcd004668b5a9038c312e4426031027d8641353Tony Mantler * @attr ref R.styleable#PreferenceFragmentCompat_android_dividerHeight 3061fcd004668b5a9038c312e4426031027d8641353Tony Mantler */ 3071fcd004668b5a9038c312e4426031027d8641353Tony Mantler public void setDividerHeight(int height) { 3081fcd004668b5a9038c312e4426031027d8641353Tony Mantler mDividerDecoration.setDividerHeight(height); 3091fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 3101fcd004668b5a9038c312e4426031027d8641353Tony Mantler 3116904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler @Override 3126904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void onActivityCreated(Bundle savedInstanceState) { 3136904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler super.onActivityCreated(savedInstanceState); 3146904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3156904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (mHavePrefs) { 3166904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler bindPreferences(); 3176904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3186904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3196904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mInitDone = true; 3206904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3216904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (savedInstanceState != null) { 3226904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler Bundle container = savedInstanceState.getBundle(PREFERENCES_TAG); 3236904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (container != null) { 3246904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final PreferenceScreen preferenceScreen = getPreferenceScreen(); 3256904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (preferenceScreen != null) { 3266904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler preferenceScreen.restoreHierarchyState(container); 3276904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3286904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3296904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3306904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3316904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3326904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler @Override 3336904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void onStart() { 3346904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler super.onStart(); 3356904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mPreferenceManager.setOnPreferenceTreeClickListener(this); 3366904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mPreferenceManager.setOnDisplayPreferenceDialogListener(this); 3376904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3386904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3396904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler @Override 3406904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void onStop() { 3416904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler super.onStop(); 3426904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mPreferenceManager.setOnPreferenceTreeClickListener(null); 3436904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mPreferenceManager.setOnDisplayPreferenceDialogListener(null); 3446904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3456904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3466904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler @Override 3476904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void onDestroyView() { 3486904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mList = null; 3496904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mHandler.removeCallbacks(mRequestFocus); 3506904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mHandler.removeMessages(MSG_BIND_PREFERENCES); 3516904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler super.onDestroyView(); 3526904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3536904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3546904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler @Override 3556904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void onSaveInstanceState(Bundle outState) { 3566904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler super.onSaveInstanceState(outState); 3576904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3586904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final PreferenceScreen preferenceScreen = getPreferenceScreen(); 3596904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (preferenceScreen != null) { 3606904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler Bundle container = new Bundle(); 3616904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler preferenceScreen.saveHierarchyState(container); 3626904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler outState.putBundle(PREFERENCES_TAG, container); 3636904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3646904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3656904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3666904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 3676904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Returns the {@link PreferenceManager} used by this fragment. 3686904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @return The {@link PreferenceManager}. 3696904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 3706904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public PreferenceManager getPreferenceManager() { 3716904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler return mPreferenceManager; 3726904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3736904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3746904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 3756904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Sets the root of the preference hierarchy that this fragment is showing. 3766904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 3776904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param preferenceScreen The root {@link PreferenceScreen} of the preference hierarchy. 3786904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 3796904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void setPreferenceScreen(PreferenceScreen preferenceScreen) { 3806904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (mPreferenceManager.setPreferences(preferenceScreen) && preferenceScreen != null) { 3816904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler onUnbindPreferences(); 3826904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mHavePrefs = true; 3836904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (mInitDone) { 3846904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler postBindPreferences(); 3856904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3866904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3876904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3886904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3896904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 3906904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Gets the root of the preference hierarchy that this fragment is showing. 3916904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 3926904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @return The {@link PreferenceScreen} that is the root of the preference 3936904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * hierarchy. 3946904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 3956904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public PreferenceScreen getPreferenceScreen() { 3966904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler return mPreferenceManager.getPreferenceScreen(); 3976904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 3986904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 3996904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 4006904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Inflates the given XML resource and adds the preference hierarchy to the current 4016904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * preference hierarchy. 4026904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 4036904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param preferencesResId The XML resource ID to inflate. 4046904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 4056904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void addPreferencesFromResource(@XmlRes int preferencesResId) { 4066904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler requirePreferenceManager(); 4076904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 4086904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler setPreferenceScreen(mPreferenceManager.inflateFromResource(mStyledContext, 4096904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler preferencesResId, getPreferenceScreen())); 4106904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 4116904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 4126904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 4136904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Inflates the given XML resource and replaces the current preference hierarchy (if any) with 4146904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * the preference hierarchy rooted at {@code key}. 4156904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 4166904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param preferencesResId The XML resource ID to inflate. 4176904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param key The preference key of the {@link android.support.v7.preference.PreferenceScreen} 4186904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * to use as the root of the preference hierarchy, or null to use the root 4196904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link android.support.v7.preference.PreferenceScreen}. 4206904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 4216904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void setPreferencesFromResource(@XmlRes int preferencesResId, @Nullable String key) { 4226904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler requirePreferenceManager(); 4236904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 4246904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final PreferenceScreen xmlRoot = mPreferenceManager.inflateFromResource(mStyledContext, 4256904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler preferencesResId, null); 4266904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 4276904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final Preference root; 4286904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (key != null) { 4296904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler root = xmlRoot.findPreference(key); 4306904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (!(root instanceof PreferenceScreen)) { 4316904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler throw new IllegalArgumentException("Preference object with key " + key 4326904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler + " is not a PreferenceScreen"); 4336904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 4346904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } else { 4356904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler root = xmlRoot; 4366904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 4376904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 4386904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler setPreferenceScreen((PreferenceScreen) root); 4396904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 4406904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 4416904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 4426904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@inheritDoc} 4436904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 4446904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public boolean onPreferenceTreeClick(Preference preference) { 445c4868c8a2946a038466f51875a590759092137b2Tony Mantler if (preference.getFragment() != null) { 446c4868c8a2946a038466f51875a590759092137b2Tony Mantler boolean handled = false; 447b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler if (getCallbackFragment() instanceof OnPreferenceStartFragmentCallback) { 448b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler handled = ((OnPreferenceStartFragmentCallback) getCallbackFragment()) 449c4868c8a2946a038466f51875a590759092137b2Tony Mantler .onPreferenceStartFragment(this, preference); 450c4868c8a2946a038466f51875a590759092137b2Tony Mantler } 451c4868c8a2946a038466f51875a590759092137b2Tony Mantler if (!handled && getActivity() instanceof OnPreferenceStartFragmentCallback){ 452c4868c8a2946a038466f51875a590759092137b2Tony Mantler handled = ((OnPreferenceStartFragmentCallback) getActivity()) 453c4868c8a2946a038466f51875a590759092137b2Tony Mantler .onPreferenceStartFragment(this, preference); 454c4868c8a2946a038466f51875a590759092137b2Tony Mantler } 455c4868c8a2946a038466f51875a590759092137b2Tony Mantler return handled; 4566904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 4576904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler return false; 4586904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 4596904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 4606904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 4616904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Called by 4626904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link android.support.v7.preference.PreferenceScreen#onClick()} in order to navigate to a 4636904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * new screen of preferences. Calls 4646904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link PreferenceFragmentCompat.OnPreferenceStartScreenCallback#onPreferenceStartScreen} 465c4868c8a2946a038466f51875a590759092137b2Tony Mantler * if the target fragment or containing activity implements 4666904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link PreferenceFragmentCompat.OnPreferenceStartScreenCallback}. 4676904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param preferenceScreen The {@link android.support.v7.preference.PreferenceScreen} to 4686904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * navigate to. 4696904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 4706904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler @Override 4716904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void onNavigateToScreen(PreferenceScreen preferenceScreen) { 472bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler boolean handled = false; 473b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler if (getCallbackFragment() instanceof OnPreferenceStartScreenCallback) { 474b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler handled = ((OnPreferenceStartScreenCallback) getCallbackFragment()) 475bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler .onPreferenceStartScreen(this, preferenceScreen); 476bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler } 477bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler if (!handled && getActivity() instanceof OnPreferenceStartScreenCallback) { 478bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler ((OnPreferenceStartScreenCallback) getActivity()) 479bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler .onPreferenceStartScreen(this, preferenceScreen); 4806904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 4816904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 4826904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 4836904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 4846904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Finds a {@link Preference} based on its key. 4856904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 4866904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param key The key of the preference to retrieve. 4876904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @return The {@link Preference} with the key, or null. 4886904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @see android.support.v7.preference.PreferenceGroup#findPreference(CharSequence) 4896904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 4906904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public Preference findPreference(CharSequence key) { 4916904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (mPreferenceManager == null) { 4926904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler return null; 4936904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 4946904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler return mPreferenceManager.findPreference(key); 4956904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 4966904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 4976904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private void requirePreferenceManager() { 4986904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (mPreferenceManager == null) { 4996904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler throw new RuntimeException("This should be called after super.onCreate."); 5006904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 5016904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 5026904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 5036904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private void postBindPreferences() { 5046904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (mHandler.hasMessages(MSG_BIND_PREFERENCES)) return; 5056904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler mHandler.obtainMessage(MSG_BIND_PREFERENCES).sendToTarget(); 5066904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 5076904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 5086904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler private void bindPreferences() { 5096904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final PreferenceScreen preferenceScreen = getPreferenceScreen(); 5106904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (preferenceScreen != null) { 51153b6dca0375b0b40d968f9e9d3dabda3e958fc41Tony Mantler getListView().setAdapter(onCreateAdapter(preferenceScreen)); 512e61b4475e1837034d8926593aff9d35f8dfaebe2Tony Mantler preferenceScreen.onAttached(); 5136904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 5146904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler onBindPreferences(); 5156904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 5166904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 5176904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** @hide */ 5186904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler protected void onBindPreferences() { 5196904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 5206904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 5216904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** @hide */ 5226904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler protected void onUnbindPreferences() { 5236904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 5246904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 5256904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public final RecyclerView getListView() { 5266904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler return mList; 5276904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 5286904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 5296904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 5306904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Creates the {@link android.support.v7.widget.RecyclerView} used to display the preferences. 5316904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Subclasses may override this to return a customized 5326904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link android.support.v7.widget.RecyclerView}. 5336904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param inflater The LayoutInflater object that can be used to inflate the 5346904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link android.support.v7.widget.RecyclerView}. 5356904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param parent The parent {@link android.view.View} that the RecyclerView will be attached to. 5366904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * This method should not add the view itself, but this can be used to generate 5376904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * the LayoutParams of the view. 5386904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param savedInstanceState If non-null, this view is being re-constructed from a previous 5396904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * saved state as given here 5406904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @return A new RecyclerView object to be placed into the view hierarchy 5416904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 5426904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public RecyclerView onCreateRecyclerView(LayoutInflater inflater, ViewGroup parent, 5436904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler Bundle savedInstanceState) { 5446904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler RecyclerView recyclerView = (RecyclerView) inflater 5456904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler .inflate(R.layout.preference_recyclerview, parent, false); 5466904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 5476904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler recyclerView.setLayoutManager(onCreateLayoutManager()); 5486904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 5496904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler return recyclerView; 5506904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 5516904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 5526904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 5536904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Called from {@link #onCreateRecyclerView} to create the 5546904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link android.support.v7.widget.RecyclerView.LayoutManager} for the created 5556904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * {@link android.support.v7.widget.RecyclerView}. 5566904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @return A new {@link android.support.v7.widget.RecyclerView.LayoutManager} instance. 5576904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 5586904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public RecyclerView.LayoutManager onCreateLayoutManager() { 5596904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler return new LinearLayoutManager(getActivity()); 5606904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 5616904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 5626904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler /** 56353b6dca0375b0b40d968f9e9d3dabda3e958fc41Tony Mantler * Creates the root adapter. 56453b6dca0375b0b40d968f9e9d3dabda3e958fc41Tony Mantler * 56553b6dca0375b0b40d968f9e9d3dabda3e958fc41Tony Mantler * @param preferenceScreen Preference screen object to create the adapter for. 56653b6dca0375b0b40d968f9e9d3dabda3e958fc41Tony Mantler * @return An adapter that contains the preferences contained in this {@link PreferenceScreen}. 56753b6dca0375b0b40d968f9e9d3dabda3e958fc41Tony Mantler */ 56853b6dca0375b0b40d968f9e9d3dabda3e958fc41Tony Mantler protected RecyclerView.Adapter onCreateAdapter(PreferenceScreen preferenceScreen) { 56953b6dca0375b0b40d968f9e9d3dabda3e958fc41Tony Mantler return new PreferenceGroupAdapter(preferenceScreen); 57053b6dca0375b0b40d968f9e9d3dabda3e958fc41Tony Mantler } 57153b6dca0375b0b40d968f9e9d3dabda3e958fc41Tony Mantler 57253b6dca0375b0b40d968f9e9d3dabda3e958fc41Tony Mantler /** 5736904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * Called when a preference in the tree requests to display a dialog. Subclasses should 5746904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * override this method to display custom dialogs or to handle dialogs for custom preference 5756904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * classes. 5766904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * 5776904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler * @param preference The Preference object requesting the dialog. 5786904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler */ 5796904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler @Override 5806904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler public void onDisplayPreferenceDialog(Preference preference) { 581bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler 582bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler boolean handled = false; 583b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler if (getCallbackFragment() instanceof OnPreferenceDisplayDialogCallback) { 584b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler handled = ((OnPreferenceDisplayDialogCallback) getCallbackFragment()) 585bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler .onPreferenceDisplayDialog(this, preference); 586bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler } 587bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler if (!handled && getActivity() instanceof OnPreferenceDisplayDialogCallback) { 588bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler handled = ((OnPreferenceDisplayDialogCallback) getActivity()) 589bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler .onPreferenceDisplayDialog(this, preference); 590bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler } 591bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler 592bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler if (handled) { 593bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler return; 594bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler } 595bd4cbab53c68c95f62407cf872b7155a520748a0Tony Mantler 5966904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler // check if dialog is already showing 5976904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (getFragmentManager().findFragmentByTag(DIALOG_FRAGMENT_TAG) != null) { 5986904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler return; 5996904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 6006904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 6016904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler final DialogFragment f; 6026904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler if (preference instanceof EditTextPreference) { 6036904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler f = EditTextPreferenceDialogFragmentCompat.newInstance(preference.getKey()); 6046904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } else if (preference instanceof ListPreference) { 6056904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler f = ListPreferenceDialogFragmentCompat.newInstance(preference.getKey()); 6066904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } else { 6076904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler throw new IllegalArgumentException("Tried to display dialog for unknown " + 6086904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler "preference type. Did you forget to override onDisplayPreferenceDialog()?"); 6096904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 6106904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler f.setTargetFragment(this, 0); 6116904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler f.show(getFragmentManager(), DIALOG_FRAGMENT_TAG); 6126904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler } 6136904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler 614b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler /** 615b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler * Basically a wrapper for getParentFragment which is v17+. Used by the leanback preference lib. 616b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler * @return Fragment to possibly use as a callback 617b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler * @hide 618b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler */ 619b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler public Fragment getCallbackFragment() { 620b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler return null; 621b1ef047adbe527a195dbccf11bf886a43509aa31Tony Mantler } 6221fcd004668b5a9038c312e4426031027d8641353Tony Mantler 6231fcd004668b5a9038c312e4426031027d8641353Tony Mantler private class DividerDecoration extends RecyclerView.ItemDecoration { 6241fcd004668b5a9038c312e4426031027d8641353Tony Mantler 6251fcd004668b5a9038c312e4426031027d8641353Tony Mantler private Drawable mDivider; 6261fcd004668b5a9038c312e4426031027d8641353Tony Mantler private int mDividerHeight; 6271fcd004668b5a9038c312e4426031027d8641353Tony Mantler 6281fcd004668b5a9038c312e4426031027d8641353Tony Mantler @Override 6291fcd004668b5a9038c312e4426031027d8641353Tony Mantler public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) { 6301fcd004668b5a9038c312e4426031027d8641353Tony Mantler if (mDivider == null) { 6311fcd004668b5a9038c312e4426031027d8641353Tony Mantler return; 6321fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6331fcd004668b5a9038c312e4426031027d8641353Tony Mantler final int childCount = parent.getChildCount(); 6341fcd004668b5a9038c312e4426031027d8641353Tony Mantler final int width = parent.getWidth(); 6351fcd004668b5a9038c312e4426031027d8641353Tony Mantler for (int childViewIndex = 0; childViewIndex < childCount; childViewIndex++) { 6361fcd004668b5a9038c312e4426031027d8641353Tony Mantler final View view = parent.getChildAt(childViewIndex); 6371fcd004668b5a9038c312e4426031027d8641353Tony Mantler if (shouldDrawDividerAbove(view, parent)) { 6381fcd004668b5a9038c312e4426031027d8641353Tony Mantler int top = (int) ViewCompat.getY(view); 6391fcd004668b5a9038c312e4426031027d8641353Tony Mantler mDivider.setBounds(0, top, width, top + mDividerHeight); 6401fcd004668b5a9038c312e4426031027d8641353Tony Mantler mDivider.draw(c); 6411fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6421fcd004668b5a9038c312e4426031027d8641353Tony Mantler if (shouldDrawDividerBelow(view, parent)) { 6431fcd004668b5a9038c312e4426031027d8641353Tony Mantler int top = (int) ViewCompat.getY(view) + view.getHeight(); 6441fcd004668b5a9038c312e4426031027d8641353Tony Mantler mDivider.setBounds(0, top, width, top + mDividerHeight); 6451fcd004668b5a9038c312e4426031027d8641353Tony Mantler mDivider.draw(c); 6461fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6471fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6481fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6491fcd004668b5a9038c312e4426031027d8641353Tony Mantler 6501fcd004668b5a9038c312e4426031027d8641353Tony Mantler @Override 6511fcd004668b5a9038c312e4426031027d8641353Tony Mantler public void getItemOffsets(Rect outRect, View view, RecyclerView parent, 6521fcd004668b5a9038c312e4426031027d8641353Tony Mantler RecyclerView.State state) { 6531fcd004668b5a9038c312e4426031027d8641353Tony Mantler if (shouldDrawDividerAbove(view, parent)) { 6541fcd004668b5a9038c312e4426031027d8641353Tony Mantler outRect.top = mDividerHeight; 6551fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6561fcd004668b5a9038c312e4426031027d8641353Tony Mantler if (shouldDrawDividerBelow(view, parent)) { 6571fcd004668b5a9038c312e4426031027d8641353Tony Mantler outRect.bottom = mDividerHeight; 6581fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6591fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6601fcd004668b5a9038c312e4426031027d8641353Tony Mantler 6611fcd004668b5a9038c312e4426031027d8641353Tony Mantler private boolean shouldDrawDividerAbove(View view, RecyclerView parent) { 6621fcd004668b5a9038c312e4426031027d8641353Tony Mantler final RecyclerView.ViewHolder holder = parent.getChildViewHolder(view); 6631fcd004668b5a9038c312e4426031027d8641353Tony Mantler return holder.getAdapterPosition() == 0 && 6641fcd004668b5a9038c312e4426031027d8641353Tony Mantler ((PreferenceViewHolder) holder).isDividerAllowedAbove(); 6651fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6661fcd004668b5a9038c312e4426031027d8641353Tony Mantler 6671fcd004668b5a9038c312e4426031027d8641353Tony Mantler private boolean shouldDrawDividerBelow(View view, RecyclerView parent) { 6681fcd004668b5a9038c312e4426031027d8641353Tony Mantler final PreferenceViewHolder holder = 6691fcd004668b5a9038c312e4426031027d8641353Tony Mantler (PreferenceViewHolder) parent.getChildViewHolder(view); 6701fcd004668b5a9038c312e4426031027d8641353Tony Mantler boolean nextAllowed = true; 6711fcd004668b5a9038c312e4426031027d8641353Tony Mantler int index = parent.indexOfChild(view); 6721fcd004668b5a9038c312e4426031027d8641353Tony Mantler if (index < parent.getChildCount() - 1) { 6731fcd004668b5a9038c312e4426031027d8641353Tony Mantler final View nextView = parent.getChildAt(index + 1); 6741fcd004668b5a9038c312e4426031027d8641353Tony Mantler final PreferenceViewHolder nextHolder = 6751fcd004668b5a9038c312e4426031027d8641353Tony Mantler (PreferenceViewHolder) parent.getChildViewHolder(nextView); 6761fcd004668b5a9038c312e4426031027d8641353Tony Mantler nextAllowed = nextHolder.isDividerAllowedAbove(); 6771fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6781fcd004668b5a9038c312e4426031027d8641353Tony Mantler return nextAllowed && holder.isDividerAllowedBelow(); 6791fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6801fcd004668b5a9038c312e4426031027d8641353Tony Mantler 6811fcd004668b5a9038c312e4426031027d8641353Tony Mantler public void setDivider(Drawable divider) { 6821fcd004668b5a9038c312e4426031027d8641353Tony Mantler if (divider != null) { 6831fcd004668b5a9038c312e4426031027d8641353Tony Mantler mDividerHeight = divider.getIntrinsicHeight(); 6841fcd004668b5a9038c312e4426031027d8641353Tony Mantler } else { 6851fcd004668b5a9038c312e4426031027d8641353Tony Mantler mDividerHeight = 0; 6861fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6871fcd004668b5a9038c312e4426031027d8641353Tony Mantler mDivider = divider; 6881fcd004668b5a9038c312e4426031027d8641353Tony Mantler mList.invalidateItemDecorations(); 6891fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6901fcd004668b5a9038c312e4426031027d8641353Tony Mantler 6911fcd004668b5a9038c312e4426031027d8641353Tony Mantler public void setDividerHeight(int dividerHeight) { 6921fcd004668b5a9038c312e4426031027d8641353Tony Mantler mDividerHeight = dividerHeight; 6931fcd004668b5a9038c312e4426031027d8641353Tony Mantler mList.invalidateItemDecorations(); 6941fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6951fcd004668b5a9038c312e4426031027d8641353Tony Mantler } 6966904f67c96a28a0e5966b4fb6d37a0ad5f136858Tony Mantler} 697