Nested fragments. (62bea2f1) · Commits · e / os / android_frameworks_base

api/current.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -3348,6 +3348,7 @@ package android.app {
		method public final boolean equals(java.lang.Object);
		method public final android.app.Activity getActivity();
		method public final android.os.Bundle getArguments();
		method public final android.app.FragmentManager getChildFragmentManager();
		method public final android.app.FragmentManager getFragmentManager();
		method public final int getId();
		method public android.app.LoaderManager getLoaderManager();
		@@ -3399,6 +3400,7 @@ package android.app {
		method public void onStop();
		method public void onTrimMemory(int);
		method public void onViewCreated(android.view.View, android.os.Bundle);
		method public void onViewStateRestored(android.os.Bundle);
		method public void registerForContextMenu(android.view.View);
		method public void setArguments(android.os.Bundle);
		method public void setHasOptionsMenu(boolean);

core/java/android/app/Activity.java

+45 −25

Original line number	Diff line number	Diff line
		@@ -653,8 +653,9 @@ public class Activity extends ContextThemeWrapper
		/** Start of user-defined activity results. */
		public static final int RESULT_FIRST_USER = 1;

		static final String FRAGMENTS_TAG = "android:fragments";

		private static final String WINDOW_HIERARCHY_TAG = "android:viewHierarchyState";
		private static final String FRAGMENTS_TAG = "android:fragments";
		private static final String SAVED_DIALOG_IDS_KEY = "android:savedDialogIds";
		private static final String SAVED_DIALOGS_TAG = "android:savedDialogs";
		private static final String SAVED_DIALOG_KEY_PREFIX = "android:dialog_";
		@@ -697,7 +698,7 @@ public class Activity extends ContextThemeWrapper
		Object activity;
		HashMap<String, Object> children;
		ArrayList<Fragment> fragments;
		SparseArray<LoaderManagerImpl> loaders;
		HashMap<String, LoaderManagerImpl> loaders;
		}
		/* package */ NonConfigurationInstances mLastNonConfigurationInstances;

		@@ -715,8 +716,14 @@ public class Activity extends ContextThemeWrapper
		private int mTitleColor = 0;

		final FragmentManagerImpl mFragments = new FragmentManagerImpl();
		final FragmentContainer mContainer = new FragmentContainer() {
		@Override
		public View findViewById(int id) {
		return Activity.this.findViewById(id);
		}
		};

		SparseArray<LoaderManagerImpl> mAllLoaderManagers;
		HashMap<String, LoaderManagerImpl> mAllLoaderManagers;
		LoaderManagerImpl mLoaderManager;

		private static final class ManagedCursor {
		@@ -744,6 +751,7 @@ public class Activity extends ContextThemeWrapper

		protected static final int[] FOCUSED_STATE_SET = {com.android.internal.R.attr.state_focused};

		@SuppressWarnings("unused")
		private final Object mInstanceTracker = StrictMode.trackActivity(this);

		private Thread mUiThread;
		@@ -808,19 +816,19 @@ public class Activity extends ContextThemeWrapper
		return mLoaderManager;
		}
		mCheckedForLoaderManager = true;
		mLoaderManager = getLoaderManager(-1, mLoadersStarted, true);
		mLoaderManager = getLoaderManager(null, mLoadersStarted, true);
		return mLoaderManager;
		}

		LoaderManagerImpl getLoaderManager(int index, boolean started, boolean create) {
		LoaderManagerImpl getLoaderManager(String who, boolean started, boolean create) {
		if (mAllLoaderManagers == null) {
		mAllLoaderManagers = new SparseArray<LoaderManagerImpl>();
		mAllLoaderManagers = new HashMap<String, LoaderManagerImpl>();
		}
		LoaderManagerImpl lm = mAllLoaderManagers.get(index);
		LoaderManagerImpl lm = mAllLoaderManagers.get(who);
		if (lm == null) {
		if (create) {
		lm = new LoaderManagerImpl(this, started);
		mAllLoaderManagers.put(index, lm);
		lm = new LoaderManagerImpl(who, this, started);
		mAllLoaderManagers.put(who, lm);
		}
		} else {
		lm.updateActivity(this);
		@@ -1025,7 +1033,7 @@ public class Activity extends ContextThemeWrapper
		if (mLoaderManager != null) {
		mLoaderManager.doStart();
		} else if (!mCheckedForLoaderManager) {
		mLoaderManager = getLoaderManager(-1, mLoadersStarted, false);
		mLoaderManager = getLoaderManager(null, mLoadersStarted, false);
		}
		mCheckedForLoaderManager = true;
		}
		@@ -1601,13 +1609,17 @@ public class Activity extends ContextThemeWrapper
		if (mAllLoaderManagers != null) {
		// prune out any loader managers that were already stopped and so
		// have nothing useful to retain.
		for (int i=mAllLoaderManagers.size()-1; i>=0; i--) {
		LoaderManagerImpl lm = mAllLoaderManagers.valueAt(i);
		LoaderManagerImpl loaders[] = new LoaderManagerImpl[mAllLoaderManagers.size()];
		mAllLoaderManagers.values().toArray(loaders);
		if (loaders != null) {
		for (int i=0; i<loaders.length; i++) {
		LoaderManagerImpl lm = loaders[i];
		if (lm.mRetaining) {
		retainLoaders = true;
		} else {
		lm.doDestroy();
		mAllLoaderManagers.removeAt(i);
		mAllLoaderManagers.remove(lm.mWho);
		}
		}
		}
		}
		@@ -1643,13 +1655,13 @@ public class Activity extends ContextThemeWrapper
		return mFragments;
		}

		void invalidateFragmentIndex(int index) {
		void invalidateFragment(String who) {
		//Log.v(TAG, "invalidateFragmentIndex: index=" + index);
		if (mAllLoaderManagers != null) {
		LoaderManagerImpl lm = mAllLoaderManagers.get(index);
		LoaderManagerImpl lm = mAllLoaderManagers.get(who);
		if (lm != null && !lm.mRetaining) {
		lm.doDestroy();
		mAllLoaderManagers.remove(index);
		mAllLoaderManagers.remove(who);
		}
		}
		}
		@@ -4739,6 +4751,10 @@ public class Activity extends ContextThemeWrapper
		* @param args additional arguments to the dump request.
		*/
		public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
		dumpInner(prefix, fd, writer, args);
		}

		void dumpInner(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
		writer.print(prefix); writer.print("Local Activity ");
		writer.print(Integer.toHexString(System.identityHashCode(this)));
		writer.println(" State:");
		@@ -5019,7 +5035,7 @@ public class Activity extends ContextThemeWrapper
		Configuration config) {
		attachBaseContext(context);

		mFragments.attachActivity(this);
		mFragments.attachActivity(this, mContainer, null);

		mWindow = PolicyManager.makeNewWindow(this);
		mWindow.setCallback(this);
		@@ -5080,13 +5096,17 @@ public class Activity extends ContextThemeWrapper
		}
		mFragments.dispatchStart();
		if (mAllLoaderManagers != null) {
		for (int i=mAllLoaderManagers.size()-1; i>=0; i--) {
		LoaderManagerImpl lm = mAllLoaderManagers.valueAt(i);
		LoaderManagerImpl loaders[] = new LoaderManagerImpl[mAllLoaderManagers.size()];
		mAllLoaderManagers.values().toArray(loaders);
		if (loaders != null) {
		for (int i=0; i<loaders.length; i++) {
		LoaderManagerImpl lm = loaders[i];
		lm.finishRetain();
		lm.doReportStart();
		}
		}
		}
		}

		final void performRestart() {
		mFragments.noteStateNotSaved();

core/java/android/app/Fragment.java

+306 −12

Original line number	Diff line number	Diff line
		@@ -85,7 +85,7 @@ final class FragmentState implements Parcelable {
		mSavedFragmentState = in.readBundle();
		}

		public Fragment instantiate(Activity activity) {
		public Fragment instantiate(Activity activity, Fragment parent) {
		if (mInstance != null) {
		return mInstance;
		}
		@@ -100,7 +100,7 @@ final class FragmentState implements Parcelable {
		mSavedFragmentState.setClassLoader(activity.getClassLoader());
		mInstance.mSavedFragmentState = mSavedFragmentState;
		}
		mInstance.setIndex(mIndex);
		mInstance.setIndex(mIndex, parent);
		mInstance.mFromLayout = mFromLayout;
		mInstance.mRestored = true;
		mInstance.mFragmentId = mFragmentId;
		@@ -207,6 +207,8 @@ final class FragmentState implements Parcelable {
		* with the fragment.
		* <li> {@link #onActivityCreated} tells the fragment that its activity has
		* completed its own {@link Activity#onCreate Activity.onCreate()}.
		* <li> {@link #onViewStateRestored} tells the fragment that all of the saved
		* state of its view hierarchy has been restored.
		* <li> {@link #onStart} makes the fragment visible to the user (based on its
		* containing activity being started).
		* <li> {@link #onResume} makes the fragment interacting with the user (based on its
		@@ -413,6 +415,12 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		// Activity this fragment is attached to.
		Activity mActivity;

		// Private fragment manager for child fragments inside of this one.
		FragmentManagerImpl mChildFragmentManager;

		// If this Fragment is contained in another Fragment, this is that container.
		Fragment mParentFragment;

		// The optional identifier for this fragment -- either the container ID if it
		// was dynamically added to the view hierarchy, or the ID supplied in
		// layout.
		@@ -595,17 +603,27 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		}
		}

		final void restoreViewState() {
		final void restoreViewState(Bundle savedInstanceState) {
		if (mSavedViewState != null) {
		mView.restoreHierarchyState(mSavedViewState);
		mSavedViewState = null;
		}
		mCalled = false;
		onViewStateRestored(savedInstanceState);
		if (!mCalled) {
		throw new SuperNotCalledException("Fragment " + this
		+ " did not call through to super.onViewStateRestored()");
		}
		}

		final void setIndex(int index) {
		final void setIndex(int index, Fragment parent) {
		mIndex = index;
		if (parent != null) {
		mWho = parent.mWho + ":" + mIndex;
		} else {
		mWho = "android:fragment:" + mIndex;
		}
		}

		final boolean isInBackStack() {
		return mBackStackNesting > 0;
		@@ -785,11 +803,34 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		* before {@link #getActivity()}, during the time from when the fragment is
		* placed in a {@link FragmentTransaction} until it is committed and
		* attached to its activity.
		*
		* <p>If this Fragment is a child of another Fragment, the FragmentManager
		* returned here will be the parent's {@link #getChildFragmentManager()}.
		*/
		final public FragmentManager getFragmentManager() {
		return mFragmentManager;
		}

		/**
		* Return a private FragmentManager for placing and managing Fragments
		* inside of this Fragment.
		*/
		final public FragmentManager getChildFragmentManager() {
		if (mChildFragmentManager == null) {
		instantiateChildFragmentManager();
		if (mState >= RESUMED) {
		mChildFragmentManager.dispatchResume();
		} else if (mState >= STARTED) {
		mChildFragmentManager.dispatchStart();
		} else if (mState >= ACTIVITY_CREATED) {
		mChildFragmentManager.dispatchActivityCreated();
		} else if (mState >= CREATED) {
		mChildFragmentManager.dispatchCreate();
		}
		}
		return mChildFragmentManager;
		}

		/**
		* Return true if the fragment is currently added to its activity.
		*/
		@@ -880,6 +921,10 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		* </ul>
		*/
		public void setRetainInstance(boolean retain) {
		if (retain && mParentFragment != null) {
		throw new IllegalStateException(
		"Can't retain fragements that are nested in other fragments");
		}
		mRetainInstance = retain;
		}

		@@ -961,7 +1006,7 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		throw new IllegalStateException("Fragment " + this + " not attached to Activity");
		}
		mCheckedForLoaderManager = true;
		mLoaderManager = mActivity.getLoaderManager(mIndex, mLoadersStarted, true);
		mLoaderManager = mActivity.getLoaderManager(mWho, mLoadersStarted, true);
		return mLoaderManager;
		}

		@@ -1191,7 +1236,7 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		* {@link #setRetainInstance(boolean)} to retain their instance,
		* as this callback tells the fragment when it is fully associated with
		* the new activity instance. This is called after {@link #onCreateView}
		* and before {@link #onStart()}.
		* and before {@link #onViewStateRestored(Bundle)}.
		*
		* @param savedInstanceState If the fragment is being re-created from
		* a previous saved state, this is the state.
		@@ -1200,6 +1245,21 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		mCalled = true;
		}

		/**
		* Called when all saved state has been restored into the view hierarchy
		* of the fragment. This can be used to do initialization based on saved
		* state that you are letting the view hierarchy track itself, such as
		* whether check box widgets are currently checked. This is called
		* after {@link #onActivityCreated(Bundle)} and before
		* {@link #onStart()}.
		*
		* @param savedInstanceState If the fragment is being re-created from
		* a previous saved state, this is the state.
		*/
		public void onViewStateRestored(Bundle savedInstanceState) {
		mCalled = true;
		}

		/**
		* Called when the Fragment is visible to the user. This is generally
		* tied to {@link Activity#onStart() Activity.onStart} of the containing
		@@ -1212,7 +1272,7 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		mLoadersStarted = true;
		if (!mCheckedForLoaderManager) {
		mCheckedForLoaderManager = true;
		mLoaderManager = mActivity.getLoaderManager(mIndex, mLoadersStarted, false);
		mLoaderManager = mActivity.getLoaderManager(mWho, mLoadersStarted, false);
		}
		if (mLoaderManager != null) {
		mLoaderManager.doStart();
		@@ -1305,7 +1365,7 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		// + " mLoaderManager=" + mLoaderManager);
		if (!mCheckedForLoaderManager) {
		mCheckedForLoaderManager = true;
		mLoaderManager = mActivity.getLoaderManager(mIndex, mLoadersStarted, false);
		mLoaderManager = mActivity.getLoaderManager(mWho, mLoadersStarted, false);
		}
		if (mLoaderManager != null) {
		mLoaderManager.doDestroy();
		@@ -1530,6 +1590,14 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		writer.print(prefix); writer.print("mActivity=");
		writer.println(mActivity);
		}
		if (mChildFragmentManager != null) {
		writer.print(prefix); writer.print("mChildFragmentManager=");
		writer.println(mChildFragmentManager);
		}
		if (mParentFragment != null) {
		writer.print(prefix); writer.print("mParentFragment=");
		writer.println(mParentFragment);
		}
		if (mArguments != null) {
		writer.print(prefix); writer.print("mArguments="); writer.println(mArguments);
		}
		@@ -1564,23 +1632,229 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		writer.print(prefix); writer.println("Loader Manager:");
		mLoaderManager.dump(prefix + " ", fd, writer, args);
		}
		if (mChildFragmentManager != null) {
		writer.print(prefix); writer.println("Child Fragment Manager:");
		mChildFragmentManager.dump(prefix + " ", fd, writer, args);
		}
		}

		Fragment findFragmentByWho(String who) {
		if (who.equals(mWho)) {
		return this;
		}
		if (mChildFragmentManager != null) {
		return mChildFragmentManager.findFragmentByWho(who);
		}
		return null;
		}

		void instantiateChildFragmentManager() {
		mChildFragmentManager = new FragmentManagerImpl();
		mChildFragmentManager.attachActivity(mActivity, new FragmentContainer() {
		@Override
		public View findViewById(int id) {
		if (mView == null) {
		throw new IllegalStateException("Fragment does not have a view");
		}
		return mView.findViewById(id);
		}
		}, this);
		}

		void performCreate(Bundle savedInstanceState) {
		mCalled = false;
		onCreate(savedInstanceState);
		if (!mCalled) {
		throw new SuperNotCalledException("Fragment " + this
		+ " did not call through to super.onCreate()");
		}
		if (savedInstanceState != null) {
		Parcelable p = savedInstanceState.getParcelable(Activity.FRAGMENTS_TAG);
		if (p != null) {
		if (mChildFragmentManager == null) {
		instantiateChildFragmentManager();
		}
		mChildFragmentManager.restoreAllState(p, null);
		mChildFragmentManager.dispatchCreate();
		}
		}
		}

		void performActivityCreated(Bundle savedInstanceState) {
		mCalled = false;
		onActivityCreated(savedInstanceState);
		if (!mCalled) {
		throw new SuperNotCalledException("Fragment " + this
		+ " did not call through to super.onActivityCreated()");
		}
		if (mChildFragmentManager != null) {
		mChildFragmentManager.dispatchActivityCreated();
		}
		}

		void performStart() {
		if (mChildFragmentManager != null) {
		mChildFragmentManager.noteStateNotSaved();
		mChildFragmentManager.execPendingActions();
		}
		mCalled = false;
		onStart();
		if (!mCalled) {
		throw new SuperNotCalledException("Fragment " + this
		+ " did not call through to super.onStart()");
		}
		if (mChildFragmentManager != null) {
		mChildFragmentManager.dispatchStart();
		}
		if (mLoaderManager != null) {
		mLoaderManager.doReportStart();
		}
		}

		void performResume() {
		if (mChildFragmentManager != null) {
		mChildFragmentManager.execPendingActions();
		}
		mCalled = false;
		onResume();
		if (!mCalled) {
		throw new SuperNotCalledException("Fragment " + this
		+ " did not call through to super.onResume()");
		}
		if (mChildFragmentManager != null) {
		mChildFragmentManager.dispatchResume();
		mChildFragmentManager.execPendingActions();
		}
		}

		void performConfigurationChanged(Configuration newConfig) {
		onConfigurationChanged(newConfig);
		if (mChildFragmentManager != null) {
		mChildFragmentManager.dispatchConfigurationChanged(newConfig);
		}
		}

		void performLowMemory() {
		onLowMemory();
		if (mChildFragmentManager != null) {
		mChildFragmentManager.dispatchLowMemory();
		}
		}

		void performTrimMemory(int level) {
		onTrimMemory(level);
		if (mChildFragmentManager != null) {
		mChildFragmentManager.dispatchTrimMemory(level);
		}
		}

		boolean performCreateOptionsMenu(Menu menu, MenuInflater inflater) {
		boolean show = false;
		if (!mHidden) {
		if (mHasMenu && mMenuVisible) {
		show = true;
		onCreateOptionsMenu(menu, inflater);
		}
		if (mChildFragmentManager != null) {
		show \|= mChildFragmentManager.dispatchCreateOptionsMenu(menu, inflater);
		}
		}
		return show;
		}

		boolean performPrepareOptionsMenu(Menu menu) {
		boolean show = false;
		if (!mHidden) {
		if (mHasMenu && mMenuVisible) {
		show = true;
		onPrepareOptionsMenu(menu);
		}
		if (mChildFragmentManager != null) {
		show \|= mChildFragmentManager.dispatchPrepareOptionsMenu(menu);
		}
		}
		return show;
		}

		boolean performOptionsItemSelected(MenuItem item) {
		if (!mHidden) {
		if (mHasMenu && mMenuVisible) {
		if (onOptionsItemSelected(item)) {
		return true;
		}
		}
		if (mChildFragmentManager != null) {
		if (mChildFragmentManager.dispatchOptionsItemSelected(item)) {
		return true;
		}
		}
		}
		return false;
		}

		boolean performContextItemSelected(MenuItem item) {
		if (!mHidden) {
		if (onContextItemSelected(item)) {
		return true;
		}
		if (mChildFragmentManager != null) {
		if (mChildFragmentManager.dispatchContextItemSelected(item)) {
		return true;
		}
		}
		}
		return false;
		}

		void performOptionsMenuClosed(Menu menu) {
		if (!mHidden) {
		if (mHasMenu && mMenuVisible) {
		onOptionsMenuClosed(menu);
		}
		if (mChildFragmentManager != null) {
		mChildFragmentManager.dispatchOptionsMenuClosed(menu);
		}
		}
		}

		void performSaveInstanceState(Bundle outState) {
		onSaveInstanceState(outState);
		if (mChildFragmentManager != null) {
		Parcelable p = mChildFragmentManager.saveAllState();
		if (p != null) {
		outState.putParcelable(Activity.FRAGMENTS_TAG, p);
		}
		}
		}

		void performPause() {
		if (mChildFragmentManager != null) {
		mChildFragmentManager.dispatchPause();
		}
		mCalled = false;
		onPause();
		if (!mCalled) {
		throw new SuperNotCalledException("Fragment " + this
		+ " did not call through to super.onPause()");
		}
		}

		void performStop() {
		if (mChildFragmentManager != null) {
		mChildFragmentManager.dispatchStop();
		}
		mCalled = false;
		onStop();
		if (!mCalled) {
		throw new SuperNotCalledException("Fragment " + this
		+ " did not call through to super.onStop()");
		}

		if (mLoadersStarted) {
		mLoadersStarted = false;
		if (!mCheckedForLoaderManager) {
		mCheckedForLoaderManager = true;
		mLoaderManager = mActivity.getLoaderManager(mIndex, mLoadersStarted, false);
		mLoaderManager = mActivity.getLoaderManager(mWho, mLoadersStarted, false);
		}
		if (mLoaderManager != null) {
		if (mActivity == null \|\| !mActivity.mChangingConfigurations) {
		@@ -1593,9 +1867,29 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
		}

		void performDestroyView() {
		if (mChildFragmentManager != null) {
		mChildFragmentManager.dispatchDestroyView();
		}
		mCalled = false;
		onDestroyView();
		if (!mCalled) {
		throw new SuperNotCalledException("Fragment " + this
		+ " did not call through to super.onDestroyView()");
		}
		if (mLoaderManager != null) {
		mLoaderManager.doReportNextStart();
		}
		}

		void performDestroy() {
		if (mChildFragmentManager != null) {
		mChildFragmentManager.dispatchDestroy();
		}
		mCalled = false;
		onDestroy();
		if (!mCalled) {
		throw new SuperNotCalledException("Fragment " + this
		+ " did not call through to super.onDestroy()");
		}
		}
		}

core/java/android/app/FragmentManager.java

+68 −79

File changed.

Preview size limit exceeded, changes collapsed.

core/java/android/app/LoaderManager.java

+4 −2

Original line number	Diff line number	Diff line
		@@ -17,7 +17,6 @@
		package android.app;

		import android.content.Loader;
		import android.content.Loader.OnLoadCanceledListener;
		import android.os.Bundle;
		import android.util.DebugUtils;
		import android.util.Log;
		@@ -213,6 +212,8 @@ class LoaderManagerImpl extends LoaderManager {
		// previously run loader until the new loader's data is available.
		final SparseArray<LoaderInfo> mInactiveLoaders = new SparseArray<LoaderInfo>();

		final String mWho;

		Activity mActivity;
		boolean mStarted;
		boolean mRetaining;
		@@ -529,7 +530,8 @@ class LoaderManagerImpl extends LoaderManager {
		}
		}

		LoaderManagerImpl(Activity activity, boolean started) {
		LoaderManagerImpl(String who, Activity activity, boolean started) {
		mWho = who;
		mActivity = activity;
		mStarted = started;
		}