Merge "Save FragmentManagerNonConfig during onSaveInstanceState()" into oc-dev (b9dbd768) · Commits · e / os / android_frameworks_base

core/java/android/app/FragmentManager.java

+40 −4

Original line number	Diff line number	Diff line
		@@ -698,6 +698,9 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		// This is dangerous, but we want to keep from breaking old applications.
		boolean mAllowOldReentrantBehavior;

		// Saved FragmentManagerNonConfig during saveAllState() and cleared in noteStateNotSaved()
		FragmentManagerNonConfig mSavedNonConfig;

		Runnable mExecCommit = new Runnable() {
		@Override
		public void run() {
		@@ -2521,6 +2524,35 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		}

		FragmentManagerNonConfig retainNonConfig() {
		setRetaining(mSavedNonConfig);
		return mSavedNonConfig;
		}

		/**
		* Recurse the FragmentManagerNonConfig fragments and set the mRetaining to true. This
		* was previously done while saving the non-config state, but that has been moved to
		* {@link #saveNonConfig()} called from {@link #saveAllState()}. If mRetaining is set too
		* early, the fragment won't be destroyed when the FragmentManager is destroyed.
		*/
		private static void setRetaining(FragmentManagerNonConfig nonConfig) {
		if (nonConfig == null) {
		return;
		}
		List<Fragment> fragments = nonConfig.getFragments();
		if (fragments != null) {
		for (Fragment fragment : fragments) {
		fragment.mRetaining = true;
		}
		}
		List<FragmentManagerNonConfig> children = nonConfig.getChildNonConfigs();
		if (children != null) {
		for (FragmentManagerNonConfig child : children) {
		setRetaining(child);
		}
		}
		}

		void saveNonConfig() {
		ArrayList<Fragment> fragments = null;
		ArrayList<FragmentManagerNonConfig> childFragments = null;
		if (mActive != null) {
		@@ -2532,13 +2564,13 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		fragments = new ArrayList<>();
		}
		fragments.add(f);
		f.mRetaining = true;
		f.mTargetIndex = f.mTarget != null ? f.mTarget.mIndex : -1;
		if (DEBUG) Log.v(TAG, "retainNonConfig: keeping retained " + f);
		}
		boolean addedChild = false;
		if (f.mChildFragmentManager != null) {
		FragmentManagerNonConfig child = f.mChildFragmentManager.retainNonConfig();
		f.mChildFragmentManager.saveNonConfig();
		FragmentManagerNonConfig child = f.mChildFragmentManager.mSavedNonConfig;
		if (child != null) {
		if (childFragments == null) {
		childFragments = new ArrayList<>();
		@@ -2557,9 +2589,10 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		}
		}
		if (fragments == null && childFragments == null) {
		return null;
		mSavedNonConfig = null;
		} else {
		mSavedNonConfig = new FragmentManagerNonConfig(fragments, childFragments);
		}
		return new FragmentManagerNonConfig(fragments, childFragments);
		}

		void saveFragmentViewState(Fragment f) {
		@@ -2620,6 +2653,7 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		execPendingActions();

		mStateSaved = true;
		mSavedNonConfig = null;

		if (mActive == null \|\| mActive.size() <= 0) {
		return null;
		@@ -2720,6 +2754,7 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		if (mPrimaryNav != null) {
		fms.mPrimaryNavActiveIndex = mPrimaryNav.mIndex;
		}
		saveNonConfig();
		return fms;
		}

		@@ -2895,6 +2930,7 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		}

		public void noteStateNotSaved() {
		mSavedNonConfig = null;
		mStateSaved = false;
		final int addedCount = mAdded == null ? 0 : mAdded.size();
		for (int i = 0; i < addedCount; i++) {