1ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn/* 2ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * Copyright (C) 2011 The Android Open Source Project 3ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * 4ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * Licensed under the Apache License, Version 2.0 (the "License"); 5ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * you may not use this file except in compliance with the License. 6ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * You may obtain a copy of the License at 7ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * 8ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * http://www.apache.org/licenses/LICENSE-2.0 9ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * 10ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * Unless required by applicable law or agreed to in writing, software 11ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * distributed under the License is distributed on an "AS IS" BASIS, 12ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * See the License for the specific language governing permissions and 14ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * limitations under the License. 15ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn */ 16ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 17ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackbornpackage android.support.v13.app; 18ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 19ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackbornimport android.app.Fragment; 20ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackbornimport android.app.FragmentManager; 21ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackbornimport android.app.FragmentTransaction; 22ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackbornimport android.os.Bundle; 23ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackbornimport android.os.Parcelable; 247dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackbornimport android.support.v4.app.FragmentPagerAdapter; 255c1637087453de15e31861f073eae5133c4e9f7bDianne Hackbornimport android.support.v4.view.PagerAdapter; 26ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackbornimport android.util.Log; 27ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackbornimport android.view.View; 28583d8a1ff64c7c59dd4e11759f3d8e994ce878d9Adam Powellimport android.view.ViewGroup; 29583d8a1ff64c7c59dd4e11759f3d8e994ce878d9Adam Powell 30583d8a1ff64c7c59dd4e11759f3d8e994ce878d9Adam Powellimport java.util.ArrayList; 31ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 320574ca37da4619afe4e26753f5a1b4de314b6565Svetoslav Ganov/** 330574ca37da4619afe4e26753f5a1b4de314b6565Svetoslav Ganov * Implementation of {@link android.support.v4.view.PagerAdapter} that 340574ca37da4619afe4e26753f5a1b4de314b6565Svetoslav Ganov * uses a {@link Fragment} to manage each page. This class also handles 350574ca37da4619afe4e26753f5a1b4de314b6565Svetoslav Ganov * saving and restoring of fragment's state. 367dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * 377dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * <p>This version of the pager is more useful when there are a large number 387dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * of pages, working more like a list view. When pages are not visible to 397dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * the user, their entire fragment may be destroyed, only keeping the saved 407dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * state of that fragment. This allows the pager to hold on to much less 417dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * memory associated with each visited page as compared to 427dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * {@link FragmentPagerAdapter} at the cost of potentially more overhead when 437dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * switching between pages. 447dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * 457dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * <p>When using FragmentPagerAdapter the host ViewPager must have a 467dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * valid ID set.</p> 477dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * 487dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * <p>Subclasses only need to implement {@link #getItem(int)} 497dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * and {@link #getCount()} to have a working adapter. 507dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * 517dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * <p>Here is an example implementation of a pager containing fragments of 527dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * lists: 537dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * 547dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * {@sample development/samples/Support4Demos/src/com/example/android/supportv4/app/FragmentStatePagerSupport.java 557dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * complete} 567dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * 577dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * <p>The <code>R.layout.fragment_pager</code> resource of the top-level fragment is: 587dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * 597dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * {@sample development/samples/Support4Demos/res/layout/fragment_pager.xml 607dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * complete} 617dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * 627dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * <p>The <code>R.layout.fragment_pager_list</code> resource containing each 637dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * individual fragment's layout is: 647dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * 657dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * {@sample development/samples/Support4Demos/res/layout/fragment_pager_list.xml 667dc96cc2410f551eefaa973ddc144146ad72d1ecDianne Hackborn * complete} 670574ca37da4619afe4e26753f5a1b4de314b6565Svetoslav Ganov */ 685c1637087453de15e31861f073eae5133c4e9f7bDianne Hackbornpublic abstract class FragmentStatePagerAdapter extends PagerAdapter { 69ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn private static final String TAG = "FragmentStatePagerAdapter"; 70ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn private static final boolean DEBUG = false; 71ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 72ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn private final FragmentManager mFragmentManager; 73ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn private FragmentTransaction mCurTransaction = null; 74ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 75ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn private ArrayList<Fragment.SavedState> mSavedState = new ArrayList<Fragment.SavedState>(); 76ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn private ArrayList<Fragment> mFragments = new ArrayList<Fragment>(); 772a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn private Fragment mCurrentPrimaryItem = null; 78ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 79ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn public FragmentStatePagerAdapter(FragmentManager fm) { 80ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mFragmentManager = fm; 81ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 82ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 83ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn /** 84ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn * Return the Fragment associated with a specified position. 85ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn */ 86ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn public abstract Fragment getItem(int position); 87ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 885c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn @Override 89583d8a1ff64c7c59dd4e11759f3d8e994ce878d9Adam Powell public void startUpdate(ViewGroup container) { 90ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 91ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 925c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn @Override 93583d8a1ff64c7c59dd4e11759f3d8e994ce878d9Adam Powell public Object instantiateItem(ViewGroup container, int position) { 94ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn // If we already have this item instantiated, there is nothing 95ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn // to do. This can happen when we are restoring the entire pager 96ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn // from its saved state, where the fragment manager has already 97ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn // taken care of restoring the fragments we previously had instantiated. 98ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (mFragments.size() > position) { 99ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Fragment f = mFragments.get(position); 100ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (f != null) { 101ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn return f; 102ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 103ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 104ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 105ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (mCurTransaction == null) { 106ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mCurTransaction = mFragmentManager.beginTransaction(); 107ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 108ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 109ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Fragment fragment = getItem(position); 110ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (DEBUG) Log.v(TAG, "Adding item #" + position + ": f=" + fragment); 111ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (mSavedState.size() > position) { 112ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Fragment.SavedState fss = mSavedState.get(position); 113ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (fss != null) { 114ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn fragment.setInitialSavedState(fss); 115ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 116ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 117ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn while (mFragments.size() <= position) { 118ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mFragments.add(null); 119ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 1202a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn FragmentCompat.setMenuVisibility(fragment, false); 1216d6186b9a2503200844febe1b8ba083206c7cbcdVeeti Paananen FragmentCompat.setUserVisibleHint(fragment, false); 122ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mFragments.set(position, fragment); 1235c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn mCurTransaction.add(container.getId(), fragment); 124ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 125ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn return fragment; 126ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 127ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 1285c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn @Override 129583d8a1ff64c7c59dd4e11759f3d8e994ce878d9Adam Powell public void destroyItem(ViewGroup container, int position, Object object) { 130ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Fragment fragment = (Fragment)object; 131ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 132ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (mCurTransaction == null) { 133ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mCurTransaction = mFragmentManager.beginTransaction(); 134ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 135ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (DEBUG) Log.v(TAG, "Removing item #" + position + ": f=" + object 136ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn + " v=" + ((Fragment)object).getView()); 137ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn while (mSavedState.size() <= position) { 138ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mSavedState.add(null); 139ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 140ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mSavedState.set(position, mFragmentManager.saveFragmentInstanceState(fragment)); 141ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mFragments.set(position, null); 142ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 143ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mCurTransaction.remove(fragment); 144ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 145ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 1465c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn @Override 147583d8a1ff64c7c59dd4e11759f3d8e994ce878d9Adam Powell public void setPrimaryItem(ViewGroup container, int position, Object object) { 1482a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn Fragment fragment = (Fragment)object; 1492a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn if (fragment != mCurrentPrimaryItem) { 1502a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn if (mCurrentPrimaryItem != null) { 1512a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn FragmentCompat.setMenuVisibility(mCurrentPrimaryItem, false); 1526d6186b9a2503200844febe1b8ba083206c7cbcdVeeti Paananen FragmentCompat.setUserVisibleHint(mCurrentPrimaryItem, false); 1532a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn } 1542a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn if (fragment != null) { 1552a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn FragmentCompat.setMenuVisibility(fragment, true); 1566d6186b9a2503200844febe1b8ba083206c7cbcdVeeti Paananen FragmentCompat.setUserVisibleHint(fragment, true); 1572a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn } 1582a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn mCurrentPrimaryItem = fragment; 1592a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn } 1602a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn } 1612a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn 1622a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn @Override 163583d8a1ff64c7c59dd4e11759f3d8e994ce878d9Adam Powell public void finishUpdate(ViewGroup container) { 164ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (mCurTransaction != null) { 1652a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn mCurTransaction.commitAllowingStateLoss(); 166ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mCurTransaction = null; 167ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mFragmentManager.executePendingTransactions(); 168ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 169ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 170ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 1715c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn @Override 172ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn public boolean isViewFromObject(View view, Object object) { 173ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn return ((Fragment)object).getView() == view; 174ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 175ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 176ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn @Override 177ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn public Parcelable saveState() { 178ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Bundle state = null; 179ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (mSavedState.size() > 0) { 180ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn state = new Bundle(); 181ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Fragment.SavedState[] fss = new Fragment.SavedState[mSavedState.size()]; 182ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mSavedState.toArray(fss); 183ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn state.putParcelableArray("states", fss); 184ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 185ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn for (int i=0; i<mFragments.size(); i++) { 186ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Fragment f = mFragments.get(i); 187ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (f != null) { 188ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (state == null) { 189ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn state = new Bundle(); 190ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 191ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn String key = "f" + i; 192ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mFragmentManager.putFragment(state, key, f); 193ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 194ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 195ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn return state; 196ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 197ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn 198ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn @Override 1995c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn public void restoreState(Parcelable state, ClassLoader loader) { 200ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (state != null) { 201ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Bundle bundle = (Bundle)state; 2025c1637087453de15e31861f073eae5133c4e9f7bDianne Hackborn bundle.setClassLoader(loader); 203ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Parcelable[] fss = bundle.getParcelableArray("states"); 204ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mSavedState.clear(); 205ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mFragments.clear(); 206ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (fss != null) { 207ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn for (int i=0; i<fss.length; i++) { 208ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mSavedState.add((Fragment.SavedState)fss[i]); 209ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 210ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 211ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Iterable<String> keys = bundle.keySet(); 212ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn for (String key: keys) { 213ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (key.startsWith("f")) { 214ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn int index = Integer.parseInt(key.substring(1)); 215ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Fragment f = mFragmentManager.getFragment(bundle, key); 216ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn if (f != null) { 217ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn while (mFragments.size() <= index) { 218ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mFragments.add(null); 219ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 2202a4d8518f36346ea25a22a736453ff28f2954165Dianne Hackborn FragmentCompat.setMenuVisibility(f, false); 221ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn mFragments.set(index, f); 222ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } else { 223ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn Log.w(TAG, "Bad fragment at key " + key); 224ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 225ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 226ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 227ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 228ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn } 229ea2c91b0198855073983b4a8437aa71cbd83872fDianne Hackborn} 230