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author | Dianne Hackborn <hackbod@google.com> | 2012-09-08 17:03:52 -0700 |
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committer | Dianne Hackborn <hackbod@google.com> | 2012-09-09 14:41:34 -0700 |
commit | 1b8ecc5031051b4bba620fac27552e84ca666496 (patch) | |
tree | b4e0c606e9cc3c0cc90b00fb78930af11987f1f3 /core | |
parent | add52a975aa78d9e24d3e63a8168c00a9bfb80ec (diff) | |
download | frameworks_base-1b8ecc5031051b4bba620fac27552e84ca666496.zip frameworks_base-1b8ecc5031051b4bba620fac27552e84ca666496.tar.gz frameworks_base-1b8ecc5031051b4bba620fac27552e84ca666496.tar.bz2 |
A little cleanup.
Change-Id: Ie33fd1b02011606e67ce08df3cce887c07680c60
Diffstat (limited to 'core')
-rw-r--r-- | core/java/android/app/Fragment.java | 67 | ||||
-rw-r--r-- | core/java/android/app/FragmentManager.java | 16 |
2 files changed, 52 insertions, 31 deletions
diff --git a/core/java/android/app/Fragment.java b/core/java/android/app/Fragment.java index 3ff9df5..c5a382d 100644 --- a/core/java/android/app/Fragment.java +++ b/core/java/android/app/Fragment.java @@ -615,7 +615,7 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene + " did not call through to super.onViewStateRestored()"); } } - + final void setIndex(int index, Fragment parent) { mIndex = index; if (parent != null) { @@ -623,8 +623,8 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene } else { mWho = "android:fragment:" + mIndex; } - } - + } + final boolean isInBackStack() { return mBackStackNesting > 0; } @@ -832,6 +832,14 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene } /** + * Returns the parent Fragment containing this Fragment. If this Fragment + * is attached directly to an Activity, returns null. + */ + final public Fragment getParentFragment() { + return mParentFragment; + } + + /** * Return true if the fragment is currently added to its activity. */ final public boolean isAdded() { @@ -1180,20 +1188,7 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene public void onCreate(Bundle savedInstanceState) { mCalled = true; } - - /** - * Called immediately after {@link #onCreateView(LayoutInflater, ViewGroup, Bundle)} - * has returned, but before any saved state has been restored in to the view. - * This gives subclasses a chance to initialize themselves once - * they know their view hierarchy has been completely created. The fragment's - * view hierarchy is not however attached to its parent at this point. - * @param view The View returned by {@link #onCreateView(LayoutInflater, ViewGroup, Bundle)}. - * @param savedInstanceState If non-null, this fragment is being re-constructed - * from a previous saved state as given here. - */ - public void onViewCreated(View view, Bundle savedInstanceState) { - } - + /** * Called to have the fragment instantiate its user interface view. * This is optional, and non-graphical fragments can return null (which @@ -1217,6 +1212,19 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene Bundle savedInstanceState) { return null; } + + /** + * Called immediately after {@link #onCreateView(LayoutInflater, ViewGroup, Bundle)} + * has returned, but before any saved state has been restored in to the view. + * This gives subclasses a chance to initialize themselves once + * they know their view hierarchy has been completely created. The fragment's + * view hierarchy is not however attached to its parent at this point. + * @param view The View returned by {@link #onCreateView(LayoutInflater, ViewGroup, Bundle)}. + * @param savedInstanceState If non-null, this fragment is being re-constructed + * from a previous saved state as given here. + */ + public void onViewCreated(View view, Bundle savedInstanceState) { + } /** * Get the root view for the fragment's layout (the one returned by {@link #onCreateView}), @@ -1237,7 +1245,7 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene * 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 #onViewStateRestored(Bundle)}. - * + * * @param savedInstanceState If the fragment is being re-created from * a previous saved state, this is the state. */ @@ -1252,7 +1260,7 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene * 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. */ @@ -1590,10 +1598,6 @@ 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); @@ -1633,7 +1637,7 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene mLoaderManager.dump(prefix + " ", fd, writer, args); } if (mChildFragmentManager != null) { - writer.print(prefix); writer.println("Child Fragment Manager:"); + writer.print(prefix); writer.println("Child " + mChildFragmentManager + ":"); mChildFragmentManager.dump(prefix + " ", fd, writer, args); } } @@ -1662,6 +1666,9 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene } void performCreate(Bundle savedInstanceState) { + if (mChildFragmentManager != null) { + mChildFragmentManager.noteStateNotSaved(); + } mCalled = false; onCreate(savedInstanceState); if (!mCalled) { @@ -1680,7 +1687,18 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene } } + View performCreateView(LayoutInflater inflater, ViewGroup container, + Bundle savedInstanceState) { + if (mChildFragmentManager != null) { + mChildFragmentManager.noteStateNotSaved(); + } + return onCreateView(inflater, container, savedInstanceState); + } + void performActivityCreated(Bundle savedInstanceState) { + if (mChildFragmentManager != null) { + mChildFragmentManager.noteStateNotSaved(); + } mCalled = false; onActivityCreated(savedInstanceState); if (!mCalled) { @@ -1713,6 +1731,7 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene void performResume() { if (mChildFragmentManager != null) { + mChildFragmentManager.noteStateNotSaved(); mChildFragmentManager.execPendingActions(); } mCalled = false; diff --git a/core/java/android/app/FragmentManager.java b/core/java/android/app/FragmentManager.java index eaaf0d7..7f11437 100644 --- a/core/java/android/app/FragmentManager.java +++ b/core/java/android/app/FragmentManager.java @@ -834,7 +834,9 @@ final class FragmentManagerImpl extends FragmentManager { throw new SuperNotCalledException("Fragment " + f + " did not call through to super.onAttach()"); } - mActivity.onAttachFragment(f); + if (f.mParentFragment == null) { + mActivity.onAttachFragment(f); + } if (!f.mRetaining) { f.performCreate(f.mSavedFragmentState); @@ -844,8 +846,8 @@ final class FragmentManagerImpl extends FragmentManager { // For fragments that are part of the content view // layout, we need to instantiate the view immediately // and the inflater will take care of adding it. - f.mView = f.onCreateView(f.getLayoutInflater(f.mSavedFragmentState), - null, f.mSavedFragmentState); + f.mView = f.performCreateView(f.getLayoutInflater( + f.mSavedFragmentState), null, f.mSavedFragmentState); if (f.mView != null) { f.mView.setSaveFromParentEnabled(false); if (f.mHidden) f.mView.setVisibility(View.GONE); @@ -868,8 +870,8 @@ final class FragmentManagerImpl extends FragmentManager { } } f.mContainer = container; - f.mView = f.onCreateView(f.getLayoutInflater(f.mSavedFragmentState), - container, f.mSavedFragmentState); + f.mView = f.performCreateView(f.getLayoutInflater( + f.mSavedFragmentState), container, f.mSavedFragmentState); if (f.mView != null) { f.mView.setSaveFromParentEnabled(false); if (container != null) { @@ -885,7 +887,7 @@ final class FragmentManagerImpl extends FragmentManager { f.onViewCreated(f.mView, f.mSavedFragmentState); } } - + f.performActivityCreated(f.mSavedFragmentState); if (f.mView != null) { f.restoreViewState(f.mSavedFragmentState); @@ -1824,7 +1826,7 @@ final class FragmentManagerImpl extends FragmentManager { public void dispatchDestroyView() { moveToState(Fragment.CREATED, false); } - + public void dispatchDestroy() { mDestroyed = true; execPendingActions(); |