+++ /dev/null
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.support.v2.app;
-
-import android.R;
-import android.content.Context;
-import android.content.res.Configuration;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Looper;
-import android.os.Parcel;
-import android.os.Parcelable;
-import android.support.v2.util.DebugUtils;
-import android.support.v2.util.LogWriter;
-import android.util.Log;
-import android.util.SparseArray;
-import android.view.animation.AccelerateInterpolator;
-import android.view.animation.AlphaAnimation;
-import android.view.animation.Animation;
-import android.view.animation.AnimationSet;
-import android.view.animation.AnimationUtils;
-import android.view.animation.DecelerateInterpolator;
-import android.view.animation.Interpolator;
-import android.view.animation.ScaleAnimation;
-import android.view.animation.Animation.AnimationListener;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.ViewGroup;
-
-import java.io.FileDescriptor;
-import java.io.PrintWriter;
-import java.util.ArrayList;
-import java.util.Arrays;
-
-/**
- * Static library support version of the framework's {@link android.app.FragmentManager}.
- * Used to write apps that run on platforms prior to Android 3.0. When running
- * on Android 3.0 or above, this implementation is still used; it does not try
- * to switch to the framework's implementation. See the framework SDK
- * documentation for a class overview.
- *
- * <p>Your activity must derive from {@link FragmentActivity} to use this.
- */
-public abstract class FragmentManager {
- /**
- * Representation of an entry on the fragment back stack, as created
- * with {@link FragmentTransaction#addToBackStack(String)
- * FragmentTransaction.addToBackStack()}. Entries can later be
- * retrieved with {@link FragmentManager#getBackStackEntryAt(int)
- * FragmentManager.getBackStackEntry()}.
- *
- * <p>Note that you should never hold on to a BackStackEntry object;
- * the identifier as returned by {@link #getId} is the only thing that
- * will be persisted across activity instances.
- */
- public interface BackStackEntry {
- /**
- * Return the unique identifier for the entry. This is the only
- * representation of the entry that will persist across activity
- * instances.
- */
- public int getId();
-
- /**
- * Return the full bread crumb title resource identifier for the entry,
- * or 0 if it does not have one.
- */
- public int getBreadCrumbTitleRes();
-
- /**
- * Return the short bread crumb title resource identifier for the entry,
- * or 0 if it does not have one.
- */
- public int getBreadCrumbShortTitleRes();
-
- /**
- * Return the full bread crumb title for the entry, or null if it
- * does not have one.
- */
- public CharSequence getBreadCrumbTitle();
-
- /**
- * Return the short bread crumb title for the entry, or null if it
- * does not have one.
- */
- public CharSequence getBreadCrumbShortTitle();
- }
-
- /**
- * Interface to watch for changes to the back stack.
- */
- public interface OnBackStackChangedListener {
- /**
- * Called whenever the contents of the back stack change.
- */
- public void onBackStackChanged();
- }
-
- /**
- * Start a series of edit operations on the Fragments associated with
- * this FragmentManager.
- *
- * <p>Note: A fragment transaction can only be created/committed prior
- * to an activity saving its state. If you try to commit a transaction
- * after {@link FragmentActivity#onSaveInstanceState FragmentActivity.onSaveInstanceState()}
- * (and prior to a following {@link FragmentActivity#onStart FragmentActivity.onStart}
- * or {@link FragmentActivity#onResume FragmentActivity.onResume()}, you will get an error.
- * This is because the framework takes care of saving your current fragments
- * in the state, and if changes are made after the state is saved then they
- * will be lost.</p>
- */
- public abstract FragmentTransaction beginTransaction();
-
- /** @hide -- remove once prebuilts are in. */
- @Deprecated
- public FragmentTransaction openTransaction() {
- return beginTransaction();
- }
-
- /**
- * After a {@link FragmentTransaction} is committed with
- * {@link FragmentTransaction#commit FragmentTransaction.commit()}, it
- * is scheduled to be executed asynchronously on the process's main thread.
- * If you want to immediately executing any such pending operations, you
- * can call this function (only from the main thread) to do so. Note that
- * all callbacks and other related behavior will be done from within this
- * call, so be careful about where this is called from.
- *
- * @return Returns true if there were any pending transactions to be
- * executed.
- */
- public abstract boolean executePendingTransactions();
-
- /**
- * Finds a fragment that was identified by the given id either when inflated
- * from XML or as the container ID when added in a transaction. This first
- * searches through fragments that are currently added to the manager's
- * activity; if no such fragment is found, then all fragments currently
- * on the back stack associated with this ID are searched.
- * @return The fragment if found or null otherwise.
- */
- public abstract Fragment findFragmentById(int id);
-
- /**
- * Finds a fragment that was identified by the given tag either when inflated
- * from XML or as supplied when added in a transaction. This first
- * searches through fragments that are currently added to the manager's
- * activity; if no such fragment is found, then all fragments currently
- * on the back stack are searched.
- * @return The fragment if found or null otherwise.
- */
- public abstract Fragment findFragmentByTag(String tag);
-
- /**
- * Flag for {@link #popBackStack(String, int)}
- * and {@link #popBackStack(int, int)}: If set, and the name or ID of
- * a back stack entry has been supplied, then all matching entries will
- * be consumed until one that doesn't match is found or the bottom of
- * the stack is reached. Otherwise, all entries up to but not including that entry
- * will be removed.
- */
- public static final int POP_BACK_STACK_INCLUSIVE = 1<<0;
-
- /**
- * Pop the top state off the back stack. Returns true if there was one
- * to pop, else false. This function is asynchronous -- it enqueues the
- * request to pop, but the action will not be performed until the application
- * returns to its event loop.
- */
- public abstract void popBackStack();
-
- /**
- * Like {@link #popBackStack()}, but performs the operation immediately
- * inside of the call. This is like calling {@link #executePendingTransactions()}
- * afterwards.
- * @return Returns true if there was something popped, else false.
- */
- public abstract boolean popBackStackImmediate();
-
- /**
- * Pop the last fragment transition from the manager's fragment
- * back stack. If there is nothing to pop, false is returned.
- * This function is asynchronous -- it enqueues the
- * request to pop, but the action will not be performed until the application
- * returns to its event loop.
- *
- * @param name If non-null, this is the name of a previous back state
- * to look for; if found, all states up to that state will be popped. The
- * {@link #POP_BACK_STACK_INCLUSIVE} flag can be used to control whether
- * the named state itself is popped. If null, only the top state is popped.
- * @param flags Either 0 or {@link #POP_BACK_STACK_INCLUSIVE}.
- */
- public abstract void popBackStack(String name, int flags);
-
- /**
- * Like {@link #popBackStack(String, int)}, but performs the operation immediately
- * inside of the call. This is like calling {@link #executePendingTransactions()}
- * afterwards.
- * @return Returns true if there was something popped, else false.
- */
- public abstract boolean popBackStackImmediate(String name, int flags);
-
- /**
- * Pop all back stack states up to the one with the given identifier.
- * This function is asynchronous -- it enqueues the
- * request to pop, but the action will not be performed until the application
- * returns to its event loop.
- *
- * @param id Identifier of the stated to be popped. If no identifier exists,
- * false is returned.
- * The identifier is the number returned by
- * {@link FragmentTransaction#commit() FragmentTransaction.commit()}. The
- * {@link #POP_BACK_STACK_INCLUSIVE} flag can be used to control whether
- * the named state itself is popped.
- * @param flags Either 0 or {@link #POP_BACK_STACK_INCLUSIVE}.
- */
- public abstract void popBackStack(int id, int flags);
-
- /**
- * Like {@link #popBackStack(int, int)}, but performs the operation immediately
- * inside of the call. This is like calling {@link #executePendingTransactions()}
- * afterwards.
- * @return Returns true if there was something popped, else false.
- */
- public abstract boolean popBackStackImmediate(int id, int flags);
-
- /**
- * Return the number of entries currently in the back stack.
- */
- public abstract int getBackStackEntryCount();
-
- /**
- * Return the BackStackEntry at index <var>index</var> in the back stack;
- * entries start index 0 being the bottom of the stack.
- */
- public abstract BackStackEntry getBackStackEntryAt(int index);
-
- /**
- * Add a new listener for changes to the fragment back stack.
- */
- public abstract void addOnBackStackChangedListener(OnBackStackChangedListener listener);
-
- /**
- * Remove a listener that was previously added with
- * {@link #addOnBackStackChangedListener(OnBackStackChangedListener)}.
- */
- public abstract void removeOnBackStackChangedListener(OnBackStackChangedListener listener);
-
- /**
- * Put a reference to a fragment in a Bundle. This Bundle can be
- * persisted as saved state, and when later restoring
- * {@link #getFragment(Bundle, String)} will return the current
- * instance of the same fragment.
- *
- * @param bundle The bundle in which to put the fragment reference.
- * @param key The name of the entry in the bundle.
- * @param fragment The Fragment whose reference is to be stored.
- */
- public abstract void putFragment(Bundle bundle, String key, Fragment fragment);
-
- /**
- * Retrieve the current Fragment instance for a reference previously
- * placed with {@link #putFragment(Bundle, String, Fragment)}.
- *
- * @param bundle The bundle from which to retrieve the fragment reference.
- * @param key The name of the entry in the bundle.
- * @return Returns the current Fragment instance that is associated with
- * the given reference.
- */
- public abstract Fragment getFragment(Bundle bundle, String key);
-
- /**
- * Print the FragmentManager's state into the given stream.
- *
- * @param prefix Text to print at the front of each line.
- * @param fd The raw file descriptor that the dump is being sent to.
- * @param writer A PrintWriter to which the dump is to be set.
- * @param args Additional arguments to the dump request.
- */
- public abstract void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args);
-
- /**
- * Control whether the framework's internal fragment manager debugging
- * logs are turned on. If enabled, you will see output in logcat as
- * the framework performs fragment operations.
- */
- public static void enableDebugLogging(boolean enabled) {
- FragmentManagerImpl.DEBUG = enabled;
- }
-}
-
-final class FragmentManagerState implements Parcelable {
- FragmentState[] mActive;
- int[] mAdded;
- BackStackState[] mBackStack;
-
- public FragmentManagerState() {
- }
-
- public FragmentManagerState(Parcel in) {
- mActive = in.createTypedArray(FragmentState.CREATOR);
- mAdded = in.createIntArray();
- mBackStack = in.createTypedArray(BackStackState.CREATOR);
- }
-
- public int describeContents() {
- return 0;
- }
-
- public void writeToParcel(Parcel dest, int flags) {
- dest.writeTypedArray(mActive, flags);
- dest.writeIntArray(mAdded);
- dest.writeTypedArray(mBackStack, flags);
- }
-
- public static final Parcelable.Creator<FragmentManagerState> CREATOR
- = new Parcelable.Creator<FragmentManagerState>() {
- public FragmentManagerState createFromParcel(Parcel in) {
- return new FragmentManagerState(in);
- }
-
- public FragmentManagerState[] newArray(int size) {
- return new FragmentManagerState[size];
- }
- };
-}
-
-/**
- * Container for fragments associated with an activity.
- */
-final class FragmentManagerImpl extends FragmentManager {
- static boolean DEBUG = false;
- static final String TAG = "FragmentManager";
-
- //v4 static final boolean HONEYCOMB = android.os.Build.VERSION.SDK_INT >= 11;
- static final boolean HONEYCOMB = android.support.v2.os.Build.VERSION.SDK_INT >= 11;
-
- static final String TARGET_REQUEST_CODE_STATE_TAG = "android:target_req_state";
- static final String TARGET_STATE_TAG = "android:target_state";
- static final String VIEW_STATE_TAG = "android:view_state";
-
- ArrayList<Runnable> mPendingActions;
- Runnable[] mTmpActions;
- boolean mExecutingActions;
-
- ArrayList<Fragment> mActive;
- ArrayList<Fragment> mAdded;
- ArrayList<Integer> mAvailIndices;
- ArrayList<BackStackRecord> mBackStack;
- ArrayList<Fragment> mCreatedMenus;
-
- // Must be accessed while locked.
- ArrayList<BackStackRecord> mBackStackIndices;
- ArrayList<Integer> mAvailBackStackIndices;
-
- ArrayList<OnBackStackChangedListener> mBackStackChangeListeners;
-
- int mCurState = Fragment.INITIALIZING;
- FragmentActivity mActivity;
-
- boolean mNeedMenuInvalidate;
- boolean mStateSaved;
- boolean mDestroyed;
- String mNoTransactionsBecause;
-
- // Temporary vars for state save and restore.
- Bundle mStateBundle = null;
- SparseArray<Parcelable> mStateArray = null;
-
- Runnable mExecCommit = new Runnable() {
- @Override
- public void run() {
- execPendingActions();
- }
- };
-
- @Override
- public FragmentTransaction beginTransaction() {
- return new BackStackRecord(this);
- }
-
- @Override
- public boolean executePendingTransactions() {
- return execPendingActions();
- }
-
- @Override
- public void popBackStack() {
- enqueueAction(new Runnable() {
- @Override public void run() {
- popBackStackState(mActivity.mHandler, null, -1, 0);
- }
- }, false);
- }
-
- @Override
- public boolean popBackStackImmediate() {
- checkStateLoss();
- executePendingTransactions();
- return popBackStackState(mActivity.mHandler, null, -1, 0);
- }
-
- @Override
- public void popBackStack(final String name, final int flags) {
- enqueueAction(new Runnable() {
- @Override public void run() {
- popBackStackState(mActivity.mHandler, name, -1, flags);
- }
- }, false);
- }
-
- @Override
- public boolean popBackStackImmediate(String name, int flags) {
- checkStateLoss();
- executePendingTransactions();
- return popBackStackState(mActivity.mHandler, name, -1, flags);
- }
-
- @Override
- public void popBackStack(final int id, final int flags) {
- if (id < 0) {
- throw new IllegalArgumentException("Bad id: " + id);
- }
- enqueueAction(new Runnable() {
- @Override public void run() {
- popBackStackState(mActivity.mHandler, null, id, flags);
- }
- }, false);
- }
-
- @Override
- public boolean popBackStackImmediate(int id, int flags) {
- checkStateLoss();
- executePendingTransactions();
- if (id < 0) {
- throw new IllegalArgumentException("Bad id: " + id);
- }
- return popBackStackState(mActivity.mHandler, null, id, flags);
- }
-
- @Override
- public int getBackStackEntryCount() {
- return mBackStack != null ? mBackStack.size() : 0;
- }
-
- @Override
- public BackStackEntry getBackStackEntryAt(int index) {
- return mBackStack.get(index);
- }
-
- @Override
- public void addOnBackStackChangedListener(OnBackStackChangedListener listener) {
- if (mBackStackChangeListeners == null) {
- mBackStackChangeListeners = new ArrayList<OnBackStackChangedListener>();
- }
- mBackStackChangeListeners.add(listener);
- }
-
- @Override
- public void removeOnBackStackChangedListener(OnBackStackChangedListener listener) {
- if (mBackStackChangeListeners != null) {
- mBackStackChangeListeners.remove(listener);
- }
- }
-
- @Override
- public void putFragment(Bundle bundle, String key, Fragment fragment) {
- if (fragment.mIndex < 0) {
- throw new IllegalStateException("Fragment " + fragment
- + " is not currently in the FragmentManager");
- }
- bundle.putInt(key, fragment.mIndex);
- }
-
- @Override
- public Fragment getFragment(Bundle bundle, String key) {
- int index = bundle.getInt(key, -1);
- if (index == -1) {
- return null;
- }
- if (index >= mActive.size()) {
- throw new IllegalStateException("Fragement no longer exists for key "
- + key + ": index " + index);
- }
- Fragment f = mActive.get(index);
- if (f == null) {
- throw new IllegalStateException("Fragement no longer exists for key "
- + key + ": index " + index);
- }
- return f;
- }
-
- @Override
- public String toString() {
- StringBuilder sb = new StringBuilder(128);
- sb.append("FragmentManager{");
- sb.append(Integer.toHexString(System.identityHashCode(this)));
- sb.append(" in ");
- DebugUtils.buildShortClassTag(mActivity, sb);
- sb.append("}}");
- return sb.toString();
- }
-
- @Override
- public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
- String innerPrefix = prefix + " ";
-
- int N;
- if (mActive != null) {
- N = mActive.size();
- if (N > 0) {
- writer.print(prefix); writer.print("Active Fragments in ");
- writer.print(Integer.toHexString(System.identityHashCode(this)));
- writer.println(":");
- for (int i=0; i<N; i++) {
- Fragment f = mActive.get(i);
- writer.print(prefix); writer.print(" #"); writer.print(i);
- writer.print(": "); writer.println(f);
- if (f != null) {
- f.dump(innerPrefix, fd, writer, args);
- }
- }
- }
- }
-
- if (mAdded != null) {
- N = mAdded.size();
- if (N > 0) {
- writer.print(prefix); writer.println("Added Fragments:");
- for (int i=0; i<N; i++) {
- Fragment f = mAdded.get(i);
- writer.print(prefix); writer.print(" #"); writer.print(i);
- writer.print(": "); writer.println(f.toString());
- }
- }
- }
-
- if (mCreatedMenus != null) {
- N = mCreatedMenus.size();
- if (N > 0) {
- writer.print(prefix); writer.println("Fragments Created Menus:");
- for (int i=0; i<N; i++) {
- Fragment f = mCreatedMenus.get(i);
- writer.print(prefix); writer.print(" #"); writer.print(i);
- writer.print(": "); writer.println(f.toString());
- }
- }
- }
-
- if (mBackStack != null) {
- N = mBackStack.size();
- if (N > 0) {
- writer.print(prefix); writer.println("Back Stack:");
- for (int i=0; i<N; i++) {
- BackStackRecord bs = mBackStack.get(i);
- writer.print(prefix); writer.print(" #"); writer.print(i);
- writer.print(": "); writer.println(bs.toString());
- bs.dump(innerPrefix, fd, writer, args);
- }
- }
- }
-
- synchronized (this) {
- if (mBackStackIndices != null) {
- N = mBackStackIndices.size();
- if (N > 0) {
- writer.print(prefix); writer.println("Back Stack Indices:");
- for (int i=0; i<N; i++) {
- BackStackRecord bs = mBackStackIndices.get(i);
- writer.print(prefix); writer.print(" #"); writer.print(i);
- writer.print(": "); writer.println(bs);
- }
- }
- }
-
- if (mAvailBackStackIndices != null && mAvailBackStackIndices.size() > 0) {
- writer.print(prefix); writer.print("mAvailBackStackIndices: ");
- writer.println(Arrays.toString(mAvailBackStackIndices.toArray()));
- }
- }
-
- if (mPendingActions != null) {
- N = mPendingActions.size();
- if (N > 0) {
- writer.print(prefix); writer.println("Pending Actions:");
- for (int i=0; i<N; i++) {
- Runnable r = mPendingActions.get(i);
- writer.print(prefix); writer.print(" #"); writer.print(i);
- writer.print(": "); writer.println(r);
- }
- }
- }
-
- writer.print(prefix); writer.println("FragmentManager misc state:");
- writer.print(prefix); writer.print(" mCurState="); writer.print(mCurState);
- writer.print(" mStateSaved="); writer.print(mStateSaved);
- writer.print(" mDestroyed="); writer.println(mDestroyed);
- if (mNeedMenuInvalidate) {
- writer.print(prefix); writer.print(" mNeedMenuInvalidate=");
- writer.println(mNeedMenuInvalidate);
- }
- if (mNoTransactionsBecause != null) {
- writer.print(prefix); writer.print(" mNoTransactionsBecause=");
- writer.println(mNoTransactionsBecause);
- }
- if (mAvailIndices != null && mAvailIndices.size() > 0) {
- writer.print(prefix); writer.print(" mAvailIndices: ");
- writer.println(Arrays.toString(mAvailIndices.toArray()));
- }
- }
-
- static final Interpolator DECELERATE_QUINT = new DecelerateInterpolator(2.5f);
- static final Interpolator DECELERATE_CUBIC = new DecelerateInterpolator(1.5f);
- static final Interpolator ACCELERATE_QUINT = new AccelerateInterpolator(2.5f);
- static final Interpolator ACCELERATE_CUBIC = new AccelerateInterpolator(1.5f);
-
- static final int ANIM_DUR = 220;
-
- static Animation makeOpenCloseAnimation(Context context, float startScale,
- float endScale, float startAlpha, float endAlpha) {
- AnimationSet set = new AnimationSet(false);
- ScaleAnimation scale = new ScaleAnimation(startScale, endScale, startScale, endScale,
- Animation.RELATIVE_TO_SELF, .5f, Animation.RELATIVE_TO_SELF, .5f);
- scale.setInterpolator(DECELERATE_QUINT);
- scale.setDuration(ANIM_DUR);
- set.addAnimation(scale);
- AlphaAnimation alpha = new AlphaAnimation(startAlpha, endAlpha);
- alpha.setInterpolator(DECELERATE_CUBIC);
- alpha.setDuration(ANIM_DUR);
- set.addAnimation(alpha);
- return set;
- }
-
- static Animation makeFadeAnimation(Context context, float start, float end) {
- AlphaAnimation anim = new AlphaAnimation(start, end);
- anim.setInterpolator(DECELERATE_CUBIC);
- anim.setDuration(ANIM_DUR);
- return anim;
- }
-
- Animation loadAnimation(Fragment fragment, int transit, boolean enter,
- int transitionStyle) {
- Animation animObj = fragment.onCreateAnimation(transit, enter,
- fragment.mNextAnim);
- if (animObj != null) {
- return animObj;
- }
-
- if (fragment.mNextAnim != 0) {
- Animation anim = AnimationUtils.loadAnimation(mActivity, fragment.mNextAnim);
- if (anim != null) {
- return anim;
- }
- }
-
- if (transit == 0) {
- return null;
- }
-
- int styleIndex = transitToStyleIndex(transit, enter);
- if (styleIndex < 0) {
- return null;
- }
-
- switch (styleIndex) {
- case ANIM_STYLE_OPEN_ENTER:
- return makeOpenCloseAnimation(mActivity, 1.125f, 1.0f, 0, 1);
- case ANIM_STYLE_OPEN_EXIT:
- return makeOpenCloseAnimation(mActivity, 1.0f, .975f, 1, 0);
- case ANIM_STYLE_CLOSE_ENTER:
- return makeOpenCloseAnimation(mActivity, .975f, 1.0f, 0, 1);
- case ANIM_STYLE_CLOSE_EXIT:
- return makeOpenCloseAnimation(mActivity, 1.0f, 1.075f, 1, 0);
- case ANIM_STYLE_FADE_ENTER:
- return makeFadeAnimation(mActivity, 0, 1);
- case ANIM_STYLE_FADE_EXIT:
- return makeFadeAnimation(mActivity, 1, 0);
- }
-
- if (transitionStyle == 0 && mActivity.getWindow() != null) {
- transitionStyle = mActivity.getWindow().getAttributes().windowAnimations;
- }
- if (transitionStyle == 0) {
- return null;
- }
-
- //TypedArray attrs = mActivity.obtainStyledAttributes(transitionStyle,
- // com.android.internal.R.styleable.FragmentAnimation);
- //int anim = attrs.getResourceId(styleIndex, 0);
- //attrs.recycle();
-
- //if (anim == 0) {
- // return null;
- //}
-
- //return AnimatorInflater.loadAnimator(mActivity, anim);
- return null;
- }
-
- void moveToState(Fragment f, int newState, int transit, int transitionStyle) {
- // Fragments that are not currently added will sit in the onCreate() state.
- if (!f.mAdded && newState > Fragment.CREATED) {
- newState = Fragment.CREATED;
- }
-
- if (f.mState < newState) {
- // For fragments that are created from a layout, when restoring from
- // state we don't want to allow them to be created until they are
- // being reloaded from the layout.
- if (f.mFromLayout && !f.mInLayout) {
- return;
- }
- if (f.mAnimatingAway != null) {
- // The fragment is currently being animated... but! Now we
- // want to move our state back up. Give up on waiting for the
- // animation, move to whatever the final state should be once
- // the animation is done, and then we can proceed from there.
- f.mAnimatingAway = null;
- moveToState(f, f.mStateAfterAnimating, 0, 0);
- }
- switch (f.mState) {
- case Fragment.INITIALIZING:
- if (DEBUG) Log.v(TAG, "moveto CREATED: " + f);
- if (f.mSavedFragmentState != null) {
- f.mSavedViewState = f.mSavedFragmentState.getSparseParcelableArray(
- FragmentManagerImpl.VIEW_STATE_TAG);
- f.mTarget = getFragment(f.mSavedFragmentState,
- FragmentManagerImpl.TARGET_STATE_TAG);
- if (f.mTarget != null) {
- f.mTargetRequestCode = f.mSavedFragmentState.getInt(
- FragmentManagerImpl.TARGET_REQUEST_CODE_STATE_TAG, 0);
- }
- }
- f.mActivity = mActivity;
- f.mFragmentManager = mActivity.mFragments;
- f.mCalled = false;
- f.onAttach(mActivity);
- if (!f.mCalled) {
- throw new SuperNotCalledException("Fragment " + f
- + " did not call through to super.onAttach()");
- }
- mActivity.onAttachFragment(f);
-
- if (!f.mRetaining) {
- f.mCalled = false;
- f.onCreate(f.mSavedFragmentState);
- if (!f.mCalled) {
- throw new SuperNotCalledException("Fragment " + f
- + " did not call through to super.onCreate()");
- }
- }
- f.mRetaining = false;
- if (f.mFromLayout) {
- // 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);
- if (f.mView != null) {
- f.mInnerView = f.mView;
- f.mView = NoSaveStateFrameLayout.wrap(f.mView);
- f.restoreViewState();
- if (f.mHidden) f.mView.setVisibility(View.GONE);
- } else {
- f.mInnerView = null;
- }
- }
- case Fragment.CREATED:
- if (newState > Fragment.CREATED) {
- if (DEBUG) Log.v(TAG, "moveto CONTENT: " + f);
- if (!f.mFromLayout) {
- ViewGroup container = null;
- if (f.mContainerId != 0) {
- container = (ViewGroup)mActivity.findViewById(f.mContainerId);
- if (container == null && !f.mRestored) {
- throw new IllegalArgumentException("No view found for id 0x"
- + Integer.toHexString(f.mContainerId)
- + " for fragment " + f);
- }
- }
- f.mContainer = container;
- f.mView = f.onCreateView(f.getLayoutInflater(f.mSavedFragmentState),
- container, f.mSavedFragmentState);
- if (f.mView != null) {
- f.mInnerView = f.mView;
- f.mView = NoSaveStateFrameLayout.wrap(f.mView);
- if (container != null) {
- Animation anim = loadAnimation(f, transit, true,
- transitionStyle);
- if (anim != null) {
- f.mView.startAnimation(anim);
- }
- container.addView(f.mView);
- f.restoreViewState();
- }
- if (f.mHidden) f.mView.setVisibility(View.GONE);
- } else {
- f.mInnerView = null;
- }
- }
-
- f.mCalled = false;
- f.onActivityCreated(f.mSavedFragmentState);
- if (!f.mCalled) {
- throw new SuperNotCalledException("Fragment " + f
- + " did not call through to super.onActivityCreated()");
- }
- f.mSavedFragmentState = null;
- }
- case Fragment.ACTIVITY_CREATED:
- if (newState > Fragment.ACTIVITY_CREATED) {
- if (DEBUG) Log.v(TAG, "moveto STARTED: " + f);
- f.mCalled = false;
- f.onStart();
- if (!f.mCalled) {
- throw new SuperNotCalledException("Fragment " + f
- + " did not call through to super.onStart()");
- }
- }
- case Fragment.STARTED:
- if (newState > Fragment.STARTED) {
- if (DEBUG) Log.v(TAG, "moveto RESUMED: " + f);
- f.mCalled = false;
- f.mResumed = true;
- f.onResume();
- if (!f.mCalled) {
- throw new SuperNotCalledException("Fragment " + f
- + " did not call through to super.onResume()");
- }
- }
- }
- } else if (f.mState > newState) {
- switch (f.mState) {
- case Fragment.RESUMED:
- if (newState < Fragment.RESUMED) {
- if (DEBUG) Log.v(TAG, "movefrom RESUMED: " + f);
- f.mCalled = false;
- f.onPause();
- if (!f.mCalled) {
- throw new SuperNotCalledException("Fragment " + f
- + " did not call through to super.onPause()");
- }
- f.mResumed = false;
- }
- case Fragment.STARTED:
- if (newState < Fragment.STARTED) {
- if (DEBUG) Log.v(TAG, "movefrom STARTED: " + f);
- f.mCalled = false;
- f.performStop();
- if (!f.mCalled) {
- throw new SuperNotCalledException("Fragment " + f
- + " did not call through to super.onStop()");
- }
- }
- case Fragment.ACTIVITY_CREATED:
- if (newState < Fragment.ACTIVITY_CREATED) {
- if (DEBUG) Log.v(TAG, "movefrom CONTENT: " + f);
- if (f.mView != null) {
- // Need to save the current view state if not
- // done already.
- if (!mActivity.isFinishing() && f.mSavedViewState == null) {
- saveFragmentViewState(f);
- }
- }
- f.mCalled = false;
- f.onDestroyView();
- if (!f.mCalled) {
- throw new SuperNotCalledException("Fragment " + f
- + " did not call through to super.onDestroyView()");
- }
- if (f.mView != null && f.mContainer != null) {
- Animation anim = null;
- if (mCurState > Fragment.INITIALIZING && !mDestroyed) {
- anim = loadAnimation(f, transit, false,
- transitionStyle);
- }
- if (anim != null) {
- final Fragment fragment = f;
- f.mAnimatingAway = f.mView;
- f.mStateAfterAnimating = newState;
- anim.setAnimationListener(new AnimationListener() {
- @Override
- public void onAnimationEnd(Animation animation) {
- if (fragment.mAnimatingAway != null) {
- fragment.mAnimatingAway = null;
- moveToState(fragment, fragment.mStateAfterAnimating,
- 0, 0);
- }
- }
- @Override
- public void onAnimationRepeat(Animation animation) {
- }
- @Override
- public void onAnimationStart(Animation animation) {
- }
- });
- f.mView.startAnimation(anim);
- }
- f.mContainer.removeView(f.mView);
- }
- f.mContainer = null;
- f.mView = null;
- f.mInnerView = null;
- }
- case Fragment.CREATED:
- if (newState < Fragment.CREATED) {
- if (mDestroyed) {
- if (f.mAnimatingAway != null) {
- // The fragment's containing activity is
- // being destroyed, but this fragment is
- // currently animating away. Stop the
- // animation right now -- it is not needed,
- // and we can't wait any more on destroying
- // the fragment.
- View v = f.mAnimatingAway;
- f.mAnimatingAway = null;
- v.clearAnimation();
- }
- }
- if (f.mAnimatingAway != null) {
- // We are waiting for the fragment's view to finish
- // animating away. Just make a note of the state
- // the fragment now should move to once the animation
- // is done.
- f.mStateAfterAnimating = newState;
- } else {
- if (DEBUG) Log.v(TAG, "movefrom CREATED: " + f);
- if (!f.mRetaining) {
- f.mCalled = false;
- f.onDestroy();
- if (!f.mCalled) {
- throw new SuperNotCalledException("Fragment " + f
- + " did not call through to super.onDestroy()");
- }
- }
-
- f.mCalled = false;
- f.onDetach();
- if (!f.mCalled) {
- throw new SuperNotCalledException("Fragment " + f
- + " did not call through to super.onDetach()");
- }
- f.mImmediateActivity = null;
- f.mActivity = null;
- f.mFragmentManager = null;
- }
- }
- }
- }
-
- f.mState = newState;
- }
-
- void moveToState(Fragment f) {
- moveToState(f, mCurState, 0, 0);
- }
-
- void moveToState(int newState, boolean always) {
- moveToState(newState, 0, 0, always);
- }
-
- void moveToState(int newState, int transit, int transitStyle, boolean always) {
- if (mActivity == null && newState != Fragment.INITIALIZING) {
- throw new IllegalStateException("No activity");
- }
-
- if (!always && mCurState == newState) {
- return;
- }
-
- mCurState = newState;
- if (mActive != null) {
- for (int i=0; i<mActive.size(); i++) {
- Fragment f = mActive.get(i);
- if (f != null) {
- moveToState(f, newState, transit, transitStyle);
- }
- }
-
- if (mNeedMenuInvalidate && mActivity != null) {
- mActivity.supportInvalidateOptionsMenu();
- mNeedMenuInvalidate = false;
- }
- }
- }
-
- void makeActive(Fragment f) {
- if (f.mIndex >= 0) {
- return;
- }
-
- if (mAvailIndices == null || mAvailIndices.size() <= 0) {
- if (mActive == null) {
- mActive = new ArrayList<Fragment>();
- }
- f.setIndex(mActive.size());
- mActive.add(f);
-
- } else {
- f.setIndex(mAvailIndices.remove(mAvailIndices.size()-1));
- mActive.set(f.mIndex, f);
- }
- }
-
- void makeInactive(Fragment f) {
- if (f.mIndex < 0) {
- return;
- }
-
- if (DEBUG) Log.v(TAG, "Freeing fragment index " + f.mIndex);
- mActive.set(f.mIndex, null);
- if (mAvailIndices == null) {
- mAvailIndices = new ArrayList<Integer>();
- }
- mAvailIndices.add(f.mIndex);
- mActivity.invalidateSupportFragmentIndex(f.mIndex);
- f.clearIndex();
- }
-
- public void addFragment(Fragment fragment, boolean moveToStateNow) {
- if (mAdded == null) {
- mAdded = new ArrayList<Fragment>();
- }
- mAdded.add(fragment);
- makeActive(fragment);
- if (DEBUG) Log.v(TAG, "add: " + fragment);
- fragment.mAdded = true;
- fragment.mRemoving = false;
- if (fragment.mHasMenu) {
- mNeedMenuInvalidate = true;
- }
- if (moveToStateNow) {
- moveToState(fragment);
- }
- }
-
- public void removeFragment(Fragment fragment, int transition, int transitionStyle) {
- if (DEBUG) Log.v(TAG, "remove: " + fragment + " nesting=" + fragment.mBackStackNesting);
- mAdded.remove(fragment);
- final boolean inactive = fragment.mBackStackNesting <= 0;
- if (fragment.mHasMenu) {
- mNeedMenuInvalidate = true;
- }
- fragment.mAdded = false;
- fragment.mRemoving = true;
- moveToState(fragment, inactive ? Fragment.INITIALIZING : Fragment.CREATED,
- transition, transitionStyle);
- if (inactive) {
- makeInactive(fragment);
- }
- }
-
- public void hideFragment(Fragment fragment, int transition, int transitionStyle) {
- if (DEBUG) Log.v(TAG, "hide: " + fragment);
- if (!fragment.mHidden) {
- fragment.mHidden = true;
- if (fragment.mView != null) {
- Animation anim = loadAnimation(fragment, transition, true,
- transitionStyle);
- if (anim != null) {
- fragment.mView.startAnimation(anim);
- }
- fragment.mView.setVisibility(View.GONE);
- }
- if (fragment.mAdded && fragment.mHasMenu) {
- mNeedMenuInvalidate = true;
- }
- fragment.onHiddenChanged(true);
- }
- }
-
- public void showFragment(Fragment fragment, int transition, int transitionStyle) {
- if (DEBUG) Log.v(TAG, "show: " + fragment);
- if (fragment.mHidden) {
- fragment.mHidden = false;
- if (fragment.mView != null) {
- Animation anim = loadAnimation(fragment, transition, true,
- transitionStyle);
- if (anim != null) {
- fragment.mView.startAnimation(anim);
- }
- fragment.mView.setVisibility(View.VISIBLE);
- }
- if (fragment.mAdded && fragment.mHasMenu) {
- mNeedMenuInvalidate = true;
- }
- fragment.onHiddenChanged(false);
- }
- }
-
- public Fragment findFragmentById(int id) {
- if (mActive != null) {
- // First look through added fragments.
- for (int i=mAdded.size()-1; i>=0; i--) {
- Fragment f = mAdded.get(i);
- if (f != null && f.mFragmentId == id) {
- return f;
- }
- }
- // Now for any known fragment.
- for (int i=mActive.size()-1; i>=0; i--) {
- Fragment f = mActive.get(i);
- if (f != null && f.mFragmentId == id) {
- return f;
- }
- }
- }
- return null;
- }
-
- public Fragment findFragmentByTag(String tag) {
- if (mActive != null && tag != null) {
- // First look through added fragments.
- for (int i=mAdded.size()-1; i>=0; i--) {
- Fragment f = mAdded.get(i);
- if (f != null && tag.equals(f.mTag)) {
- return f;
- }
- }
- // Now for any known fragment.
- for (int i=mActive.size()-1; i>=0; i--) {
- Fragment f = mActive.get(i);
- if (f != null && tag.equals(f.mTag)) {
- return f;
- }
- }
- }
- return null;
- }
-
- public Fragment findFragmentByWho(String who) {
- if (mActive != null && who != null) {
- for (int i=mActive.size()-1; i>=0; i--) {
- Fragment f = mActive.get(i);
- if (f != null && who.equals(f.mWho)) {
- return f;
- }
- }
- }
- return null;
- }
-
- private void checkStateLoss() {
- if (mStateSaved) {
- throw new IllegalStateException(
- "Can not perform this action after onSaveInstanceState");
- }
- if (mNoTransactionsBecause != null) {
- throw new IllegalStateException(
- "Can not perform this action inside of " + mNoTransactionsBecause);
- }
- }
-
- public void enqueueAction(Runnable action, boolean allowStateLoss) {
- if (!allowStateLoss) {
- checkStateLoss();
- }
- synchronized (this) {
- if (mActivity == null) {
- throw new IllegalStateException("Activity has been destroyed");
- }
- if (mPendingActions == null) {
- mPendingActions = new ArrayList<Runnable>();
- }
- mPendingActions.add(action);
- if (mPendingActions.size() == 1) {
- mActivity.mHandler.removeCallbacks(mExecCommit);
- mActivity.mHandler.post(mExecCommit);
- }
- }
- }
-
- public int allocBackStackIndex(BackStackRecord bse) {
- synchronized (this) {
- if (mAvailBackStackIndices == null || mAvailBackStackIndices.size() <= 0) {
- if (mBackStackIndices == null) {
- mBackStackIndices = new ArrayList<BackStackRecord>();
- }
- int index = mBackStackIndices.size();
- if (DEBUG) Log.v(TAG, "Setting back stack index " + index + " to " + bse);
- mBackStackIndices.add(bse);
- return index;
-
- } else {
- int index = mAvailBackStackIndices.remove(mAvailBackStackIndices.size()-1);
- if (DEBUG) Log.v(TAG, "Adding back stack index " + index + " with " + bse);
- mBackStackIndices.set(index, bse);
- return index;
- }
- }
- }
-
- public void setBackStackIndex(int index, BackStackRecord bse) {
- synchronized (this) {
- if (mBackStackIndices == null) {
- mBackStackIndices = new ArrayList<BackStackRecord>();
- }
- int N = mBackStackIndices.size();
- if (index < N) {
- if (DEBUG) Log.v(TAG, "Setting back stack index " + index + " to " + bse);
- mBackStackIndices.set(index, bse);
- } else {
- while (N < index) {
- mBackStackIndices.add(null);
- if (mAvailBackStackIndices == null) {
- mAvailBackStackIndices = new ArrayList<Integer>();
- }
- if (DEBUG) Log.v(TAG, "Adding available back stack index " + N);
- mAvailBackStackIndices.add(N);
- N++;
- }
- if (DEBUG) Log.v(TAG, "Adding back stack index " + index + " with " + bse);
- mBackStackIndices.add(bse);
- }
- }
- }
-
- public void freeBackStackIndex(int index) {
- synchronized (this) {
- mBackStackIndices.set(index, null);
- if (mAvailBackStackIndices == null) {
- mAvailBackStackIndices = new ArrayList<Integer>();
- }
- if (DEBUG) Log.v(TAG, "Freeing back stack index " + index);
- mAvailBackStackIndices.add(index);
- }
- }
-
- /**
- * Only call from main thread!
- */
- public boolean execPendingActions() {
- if (mExecutingActions) {
- throw new IllegalStateException("Recursive entry to executePendingTransactions");
- }
-
- if (Looper.myLooper() != mActivity.mHandler.getLooper()) {
- throw new IllegalStateException("Must be called from main thread of process");
- }
-
- boolean didSomething = false;
-
- while (true) {
- int numActions;
-
- synchronized (this) {
- if (mPendingActions == null || mPendingActions.size() == 0) {
- return didSomething;
- }
-
- numActions = mPendingActions.size();
- if (mTmpActions == null || mTmpActions.length < numActions) {
- mTmpActions = new Runnable[numActions];
- }
- mPendingActions.toArray(mTmpActions);
- mPendingActions.clear();
- mActivity.mHandler.removeCallbacks(mExecCommit);
- }
-
- mExecutingActions = true;
- for (int i=0; i<numActions; i++) {
- mTmpActions[i].run();
- }
- mExecutingActions = false;
- didSomething = true;
- }
- }
-
- void reportBackStackChanged() {
- if (mBackStackChangeListeners != null) {
- for (int i=0; i<mBackStackChangeListeners.size(); i++) {
- mBackStackChangeListeners.get(i).onBackStackChanged();
- }
- }
- }
-
- void addBackStackState(BackStackRecord state) {
- if (mBackStack == null) {
- mBackStack = new ArrayList<BackStackRecord>();
- }
- mBackStack.add(state);
- reportBackStackChanged();
- }
-
- boolean popBackStackState(Handler handler, String name, int id, int flags) {
- if (mBackStack == null) {
- return false;
- }
- if (name == null && id < 0 && (flags&POP_BACK_STACK_INCLUSIVE) == 0) {
- int last = mBackStack.size()-1;
- if (last < 0) {
- return false;
- }
- final BackStackRecord bss = mBackStack.remove(last);
- bss.popFromBackStack(true);
- reportBackStackChanged();
- } else {
- int index = -1;
- if (name != null || id >= 0) {
- // If a name or ID is specified, look for that place in
- // the stack.
- index = mBackStack.size()-1;
- while (index >= 0) {
- BackStackRecord bss = mBackStack.get(index);
- if (name != null && name.equals(bss.getName())) {
- break;
- }
- if (id >= 0 && id == bss.mIndex) {
- break;
- }
- index--;
- }
- if (index < 0) {
- return false;
- }
- if ((flags&POP_BACK_STACK_INCLUSIVE) != 0) {
- index--;
- // Consume all following entries that match.
- while (index >= 0) {
- BackStackRecord bss = mBackStack.get(index);
- if ((name != null && name.equals(bss.getName()))
- || (id >= 0 && id == bss.mIndex)) {
- index--;
- continue;
- }
- break;
- }
- }
- }
- if (index == mBackStack.size()-1) {
- return false;
- }
- final ArrayList<BackStackRecord> states
- = new ArrayList<BackStackRecord>();
- for (int i=mBackStack.size()-1; i>index; i--) {
- states.add(mBackStack.remove(i));
- }
- final int LAST = states.size()-1;
- for (int i=0; i<=LAST; i++) {
- if (DEBUG) Log.v(TAG, "Popping back stack state: " + states.get(i));
- states.get(i).popFromBackStack(i == LAST);
- }
- reportBackStackChanged();
- }
- return true;
- }
-
- ArrayList<Fragment> retainNonConfig() {
- ArrayList<Fragment> fragments = null;
- if (mActive != null) {
- for (int i=0; i<mActive.size(); i++) {
- Fragment f = mActive.get(i);
- if (f != null && f.mRetainInstance) {
- if (fragments == null) {
- fragments = new ArrayList<Fragment>();
- }
- fragments.add(f);
- f.mRetaining = true;
- }
- }
- }
- return fragments;
- }
-
- void saveFragmentViewState(Fragment f) {
- if (f.mInnerView == null) {
- return;
- }
- if (mStateArray == null) {
- mStateArray = new SparseArray<Parcelable>();
- }
- f.mInnerView.saveHierarchyState(mStateArray);
- if (mStateArray.size() > 0) {
- f.mSavedViewState = mStateArray;
- mStateArray = null;
- }
- }
-
- Parcelable saveAllState() {
- // Make sure all pending operations have now been executed to get
- // our state update-to-date.
- execPendingActions();
-
- if (HONEYCOMB) {
- // As of Honeycomb, we save state after pausing. Prior to that
- // it is before pausing. With fragments this is an issue, since
- // there are many things you may do after pausing but before
- // stopping that change the fragment state. For those older
- // devices, we will not at this point say that we have saved
- // the state, so we will allow them to continue doing fragment
- // transactions. This retains the same semantics as Honeycomb,
- // though you do have the risk of losing the very most recent state
- // if the process is killed... we'll live with that.
- mStateSaved = true;
- }
-
- if (mActive == null || mActive.size() <= 0) {
- return null;
- }
-
- // First collect all active fragments.
- int N = mActive.size();
- FragmentState[] active = new FragmentState[N];
- boolean haveFragments = false;
- for (int i=0; i<N; i++) {
- Fragment f = mActive.get(i);
- if (f != null) {
- haveFragments = true;
-
- FragmentState fs = new FragmentState(f);
- active[i] = fs;
-
- if (f.mState > Fragment.INITIALIZING && fs.mSavedFragmentState == null) {
- if (mStateBundle == null) {
- mStateBundle = new Bundle();
- }
- f.onSaveInstanceState(mStateBundle);
- if (!mStateBundle.isEmpty()) {
- fs.mSavedFragmentState = mStateBundle;
- mStateBundle = null;
- }
-
- if (f.mView != null) {
- saveFragmentViewState(f);
- if (f.mSavedViewState != null) {
- if (fs.mSavedFragmentState == null) {
- fs.mSavedFragmentState = new Bundle();
- }
- fs.mSavedFragmentState.putSparseParcelableArray(
- FragmentManagerImpl.VIEW_STATE_TAG, f.mSavedViewState);
- }
- }
-
- if (f.mTarget != null) {
- if (f.mTarget.mIndex < 0) {
- String msg = "Failure saving state: " + f
- + " has target not in fragment manager: " + f.mTarget;
- Log.e(TAG, msg);
- dump(" ", null, new PrintWriter(new LogWriter(TAG)), new String[] { });
- throw new IllegalStateException(msg);
- }
- if (fs.mSavedFragmentState == null) {
- fs.mSavedFragmentState = new Bundle();
- }
- putFragment(fs.mSavedFragmentState,
- FragmentManagerImpl.TARGET_STATE_TAG, f.mTarget);
- if (f.mTargetRequestCode != 0) {
- fs.mSavedFragmentState.putInt(
- FragmentManagerImpl.TARGET_REQUEST_CODE_STATE_TAG,
- f.mTargetRequestCode);
- }
- }
-
- } else {
- fs.mSavedFragmentState = f.mSavedFragmentState;
- }
-
- if (DEBUG) Log.v(TAG, "Saved state of " + f + ": "
- + fs.mSavedFragmentState);
- }
- }
-
- if (!haveFragments) {
- if (DEBUG) Log.v(TAG, "saveAllState: no fragments!");
- return null;
- }
-
- int[] added = null;
- BackStackState[] backStack = null;
-
- // Build list of currently added fragments.
- if (mAdded != null) {
- N = mAdded.size();
- if (N > 0) {
- added = new int[N];
- for (int i=0; i<N; i++) {
- added[i] = mAdded.get(i).mIndex;
- if (DEBUG) Log.v(TAG, "saveAllState: adding fragment #" + i
- + ": " + mAdded.get(i));
- }
- }
- }
-
- // Now save back stack.
- if (mBackStack != null) {
- N = mBackStack.size();
- if (N > 0) {
- backStack = new BackStackState[N];
- for (int i=0; i<N; i++) {
- backStack[i] = new BackStackState(this, mBackStack.get(i));
- if (DEBUG) Log.v(TAG, "saveAllState: adding back stack #" + i
- + ": " + mBackStack.get(i));
- }
- }
- }
-
- FragmentManagerState fms = new FragmentManagerState();
- fms.mActive = active;
- fms.mAdded = added;
- fms.mBackStack = backStack;
- return fms;
- }
-
- void restoreAllState(Parcelable state, ArrayList<Fragment> nonConfig) {
- // If there is no saved state at all, then there can not be
- // any nonConfig fragments either, so that is that.
- if (state == null) return;
- FragmentManagerState fms = (FragmentManagerState)state;
- if (fms.mActive == null) return;
-
- // First re-attach any non-config instances we are retaining back
- // to their saved state, so we don't try to instantiate them again.
- if (nonConfig != null) {
- for (int i=0; i<nonConfig.size(); i++) {
- Fragment f = nonConfig.get(i);
- if (DEBUG) Log.v(TAG, "restoreAllState: re-attaching retained " + f);
- FragmentState fs = fms.mActive[f.mIndex];
- fs.mInstance = f;
- f.mSavedViewState = null;
- f.mBackStackNesting = 0;
- f.mInLayout = false;
- f.mAdded = false;
- if (fs.mSavedFragmentState != null) {
- fs.mSavedFragmentState.setClassLoader(mActivity.getClassLoader());
- f.mSavedViewState = fs.mSavedFragmentState.getSparseParcelableArray(
- FragmentManagerImpl.VIEW_STATE_TAG);
- }
- }
- }
-
- // Build the full list of active fragments, instantiating them from
- // their saved state.
- mActive = new ArrayList<Fragment>(fms.mActive.length);
- if (mAvailIndices != null) {
- mAvailIndices.clear();
- }
- for (int i=0; i<fms.mActive.length; i++) {
- FragmentState fs = fms.mActive[i];
- if (fs != null) {
- Fragment f = fs.instantiate(mActivity);
- if (DEBUG) Log.v(TAG, "restoreAllState: adding #" + i + ": " + f);
- mActive.add(f);
- // Now that the fragment is instantiated (or came from being
- // retained above), clear mInstance in case we end up re-restoring
- // from this FragmentState again.
- fs.mInstance = null;
- } else {
- if (DEBUG) Log.v(TAG, "restoreAllState: adding #" + i + ": (null)");
- mActive.add(null);
- if (mAvailIndices == null) {
- mAvailIndices = new ArrayList<Integer>();
- }
- if (DEBUG) Log.v(TAG, "restoreAllState: adding avail #" + i);
- mAvailIndices.add(i);
- }
- }
-
- // Update the target of all retained fragments.
- if (nonConfig != null) {
- for (int i=0; i<nonConfig.size(); i++) {
- Fragment f = nonConfig.get(i);
- if (f.mTarget != null) {
- if (f.mTarget.mIndex < mActive.size()) {
- f.mTarget = mActive.get(f.mTarget.mIndex);
- } else {
- Log.w(TAG, "Re-attaching retained fragment " + f
- + " target no longer exists: " + f.mTarget);
- f.mTarget = null;
- }
- }
- }
- }
-
- // Build the list of currently added fragments.
- if (fms.mAdded != null) {
- mAdded = new ArrayList<Fragment>(fms.mAdded.length);
- for (int i=0; i<fms.mAdded.length; i++) {
- Fragment f = mActive.get(fms.mAdded[i]);
- if (f == null) {
- throw new IllegalStateException(
- "No instantiated fragment for index #" + fms.mAdded[i]);
- }
- f.mAdded = true;
- f.mImmediateActivity = mActivity;
- if (DEBUG) Log.v(TAG, "restoreAllState: making added #" + i + ": " + f);
- mAdded.add(f);
- }
- } else {
- mAdded = null;
- }
-
- // Build the back stack.
- if (fms.mBackStack != null) {
- mBackStack = new ArrayList<BackStackRecord>(fms.mBackStack.length);
- for (int i=0; i<fms.mBackStack.length; i++) {
- BackStackRecord bse = fms.mBackStack[i].instantiate(this);
- if (DEBUG) Log.v(TAG, "restoreAllState: adding bse #" + i
- + " (index " + bse.mIndex + "): " + bse);
- mBackStack.add(bse);
- if (bse.mIndex >= 0) {
- setBackStackIndex(bse.mIndex, bse);
- }
- }
- } else {
- mBackStack = null;
- }
- }
-
- public void attachActivity(FragmentActivity activity) {
- if (mActivity != null) throw new IllegalStateException();
- mActivity = activity;
- }
-
- public void noteStateNotSaved() {
- mStateSaved = false;
- }
-
- public void dispatchCreate() {
- mStateSaved = false;
- moveToState(Fragment.CREATED, false);
- }
-
- public void dispatchActivityCreated() {
- mStateSaved = false;
- moveToState(Fragment.ACTIVITY_CREATED, false);
- }
-
- public void dispatchStart() {
- mStateSaved = false;
- moveToState(Fragment.STARTED, false);
- }
-
- public void dispatchResume() {
- mStateSaved = false;
- moveToState(Fragment.RESUMED, false);
- }
-
- public void dispatchPause() {
- moveToState(Fragment.STARTED, false);
- }
-
- public void dispatchStop() {
- // See saveAllState() for the explanation of this. We do this for
- // all platform versions, to keep our behavior more consistent between
- // them.
- mStateSaved = true;
-
- moveToState(Fragment.ACTIVITY_CREATED, false);
- }
-
- public void dispatchReallyStop(boolean retaining) {
- if (mActive != null) {
- for (int i=0; i<mAdded.size(); i++) {
- Fragment f = mAdded.get(i);
- if (f != null) {
- f.performReallyStop(retaining);
- }
- }
- }
- }
-
- public void dispatchDestroy() {
- mDestroyed = true;
- moveToState(Fragment.INITIALIZING, false);
- mActivity = null;
- }
-
- public void dispatchConfigurationChanged(Configuration newConfig) {
- if (mActive != null) {
- for (int i=0; i<mAdded.size(); i++) {
- Fragment f = mAdded.get(i);
- if (f != null) {
- f.onConfigurationChanged(newConfig);
- }
- }
- }
- }
-
- public void dispatchLowMemory() {
- if (mActive != null) {
- for (int i=0; i<mAdded.size(); i++) {
- Fragment f = mAdded.get(i);
- if (f != null) {
- f.onLowMemory();
- }
- }
- }
- }
-
- public boolean dispatchCreateOptionsMenu(Menu menu, MenuInflater inflater) {
- boolean show = false;
- ArrayList<Fragment> newMenus = null;
- if (mActive != null) {
- for (int i=0; i<mAdded.size(); i++) {
- Fragment f = mAdded.get(i);
- if (f != null && !f.mHidden && f.mHasMenu) {
- show = true;
- f.onCreateOptionsMenu(menu, inflater);
- if (newMenus == null) {
- newMenus = new ArrayList<Fragment>();
- }
- newMenus.add(f);
- }
- }
- }
-
- if (mCreatedMenus != null) {
- for (int i=0; i<mCreatedMenus.size(); i++) {
- Fragment f = mCreatedMenus.get(i);
- if (newMenus == null || !newMenus.contains(f)) {
- f.onDestroyOptionsMenu();
- }
- }
- }
-
- mCreatedMenus = newMenus;
-
- return show;
- }
-
- public boolean dispatchPrepareOptionsMenu(Menu menu) {
- boolean show = false;
- if (mActive != null) {
- for (int i=0; i<mAdded.size(); i++) {
- Fragment f = mAdded.get(i);
- if (f != null && !f.mHidden && f.mHasMenu) {
- show = true;
- f.onPrepareOptionsMenu(menu);
- }
- }
- }
- return show;
- }
-
- public boolean dispatchOptionsItemSelected(MenuItem item) {
- if (mActive != null) {
- for (int i=0; i<mAdded.size(); i++) {
- Fragment f = mAdded.get(i);
- if (f != null && !f.mHidden && f.mHasMenu) {
- if (f.onOptionsItemSelected(item)) {
- return true;
- }
- }
- }
- }
- return false;
- }
-
- public boolean dispatchContextItemSelected(MenuItem item) {
- if (mActive != null) {
- for (int i=0; i<mAdded.size(); i++) {
- Fragment f = mAdded.get(i);
- if (f != null && !f.mHidden) {
- if (f.onContextItemSelected(item)) {
- return true;
- }
- }
- }
- }
- return false;
- }
-
- public void dispatchOptionsMenuClosed(Menu menu) {
- if (mActive != null) {
- for (int i=0; i<mAdded.size(); i++) {
- Fragment f = mAdded.get(i);
- if (f != null && !f.mHidden && f.mHasMenu) {
- f.onOptionsMenuClosed(menu);
- }
- }
- }
- }
-
- public static int reverseTransit(int transit) {
- int rev = 0;
- switch (transit) {
- case FragmentTransaction.TRANSIT_FRAGMENT_OPEN:
- rev = FragmentTransaction.TRANSIT_FRAGMENT_CLOSE;
- break;
- case FragmentTransaction.TRANSIT_FRAGMENT_CLOSE:
- rev = FragmentTransaction.TRANSIT_FRAGMENT_OPEN;
- break;
- case FragmentTransaction.TRANSIT_FRAGMENT_FADE:
- rev = FragmentTransaction.TRANSIT_FRAGMENT_FADE;
- break;
- }
- return rev;
-
- }
-
- public static final int ANIM_STYLE_OPEN_ENTER = 1;
- public static final int ANIM_STYLE_OPEN_EXIT = 2;
- public static final int ANIM_STYLE_CLOSE_ENTER = 3;
- public static final int ANIM_STYLE_CLOSE_EXIT = 4;
- public static final int ANIM_STYLE_FADE_ENTER = 5;
- public static final int ANIM_STYLE_FADE_EXIT = 6;
-
- public static int transitToStyleIndex(int transit, boolean enter) {
- int animAttr = -1;
- switch (transit) {
- case FragmentTransaction.TRANSIT_FRAGMENT_OPEN:
- animAttr = enter ? ANIM_STYLE_OPEN_ENTER : ANIM_STYLE_OPEN_EXIT;
- break;
- case FragmentTransaction.TRANSIT_FRAGMENT_CLOSE:
- animAttr = enter ? ANIM_STYLE_CLOSE_ENTER : ANIM_STYLE_CLOSE_EXIT;
- break;
- case FragmentTransaction.TRANSIT_FRAGMENT_FADE:
- animAttr = enter ? ANIM_STYLE_FADE_ENTER : ANIM_STYLE_FADE_EXIT;
- break;
- }
- return animAttr;
- }
-}
notaz.gp2x.de / android_pandora.git / blobdiff