--- /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