| /* |
| * Copyright (C) 2010 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.app; |
| |
| import com.android.internal.util.FastPrintWriter; |
| |
| import android.graphics.Rect; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.text.TextUtils; |
| import android.transition.Transition; |
| import android.transition.TransitionInflater; |
| import android.transition.TransitionManager; |
| import android.transition.TransitionSet; |
| import android.util.ArrayMap; |
| import android.util.Log; |
| import android.util.LogWriter; |
| import android.util.Pair; |
| import android.view.View; |
| import android.view.ViewGroup; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| |
| final class BackStackState implements Parcelable { |
| final int[] mOps; |
| final int mTransition; |
| final int mTransitionStyle; |
| final int mCustomTransition; |
| final int mSceneRoot; |
| final String mName; |
| final int mIndex; |
| final int mBreadCrumbTitleRes; |
| final CharSequence mBreadCrumbTitleText; |
| final int mBreadCrumbShortTitleRes; |
| final CharSequence mBreadCrumbShortTitleText; |
| final ArrayList<String> mSharedElementSourceNames; |
| final ArrayList<String> mSharedElementTargetNames; |
| |
| public BackStackState(FragmentManagerImpl fm, BackStackRecord bse) { |
| int numRemoved = 0; |
| BackStackRecord.Op op = bse.mHead; |
| while (op != null) { |
| if (op.removed != null) { |
| numRemoved += op.removed.size(); |
| } |
| op = op.next; |
| } |
| mOps = new int[bse.mNumOp * 7 + numRemoved]; |
| |
| if (!bse.mAddToBackStack) { |
| throw new IllegalStateException("Not on back stack"); |
| } |
| |
| op = bse.mHead; |
| int pos = 0; |
| while (op != null) { |
| mOps[pos++] = op.cmd; |
| mOps[pos++] = op.fragment != null ? op.fragment.mIndex : -1; |
| mOps[pos++] = op.enterAnim; |
| mOps[pos++] = op.exitAnim; |
| mOps[pos++] = op.popEnterAnim; |
| mOps[pos++] = op.popExitAnim; |
| if (op.removed != null) { |
| final int N = op.removed.size(); |
| mOps[pos++] = N; |
| for (int i = 0; i < N; i++) { |
| mOps[pos++] = op.removed.get(i).mIndex; |
| } |
| } else { |
| mOps[pos++] = 0; |
| } |
| op = op.next; |
| } |
| mTransition = bse.mTransition; |
| mTransitionStyle = bse.mTransitionStyle; |
| mName = bse.mName; |
| mIndex = bse.mIndex; |
| mBreadCrumbTitleRes = bse.mBreadCrumbTitleRes; |
| mBreadCrumbTitleText = bse.mBreadCrumbTitleText; |
| mBreadCrumbShortTitleRes = bse.mBreadCrumbShortTitleRes; |
| mBreadCrumbShortTitleText = bse.mBreadCrumbShortTitleText; |
| mCustomTransition = bse.mCustomTransition; |
| mSceneRoot = bse.mSceneRoot; |
| mSharedElementSourceNames = bse.mSharedElementSourceNames; |
| mSharedElementTargetNames = bse.mSharedElementTargetNames; |
| } |
| |
| public BackStackState(Parcel in) { |
| mOps = in.createIntArray(); |
| mTransition = in.readInt(); |
| mTransitionStyle = in.readInt(); |
| mName = in.readString(); |
| mIndex = in.readInt(); |
| mBreadCrumbTitleRes = in.readInt(); |
| mBreadCrumbTitleText = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); |
| mBreadCrumbShortTitleRes = in.readInt(); |
| mBreadCrumbShortTitleText = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); |
| mCustomTransition = in.readInt(); |
| mSceneRoot = in.readInt(); |
| mSharedElementSourceNames = in.createStringArrayList(); |
| mSharedElementTargetNames = in.createStringArrayList(); |
| } |
| |
| public BackStackRecord instantiate(FragmentManagerImpl fm) { |
| BackStackRecord bse = new BackStackRecord(fm); |
| int pos = 0; |
| int num = 0; |
| while (pos < mOps.length) { |
| BackStackRecord.Op op = new BackStackRecord.Op(); |
| op.cmd = mOps[pos++]; |
| if (FragmentManagerImpl.DEBUG) { |
| Log.v(FragmentManagerImpl.TAG, |
| "Instantiate " + bse + " op #" + num + " base fragment #" + mOps[pos]); |
| } |
| int findex = mOps[pos++]; |
| if (findex >= 0) { |
| Fragment f = fm.mActive.get(findex); |
| op.fragment = f; |
| } else { |
| op.fragment = null; |
| } |
| op.enterAnim = mOps[pos++]; |
| op.exitAnim = mOps[pos++]; |
| op.popEnterAnim = mOps[pos++]; |
| op.popExitAnim = mOps[pos++]; |
| final int N = mOps[pos++]; |
| if (N > 0) { |
| op.removed = new ArrayList<Fragment>(N); |
| for (int i = 0; i < N; i++) { |
| if (FragmentManagerImpl.DEBUG) { |
| Log.v(FragmentManagerImpl.TAG, |
| "Instantiate " + bse + " set remove fragment #" + mOps[pos]); |
| } |
| Fragment r = fm.mActive.get(mOps[pos++]); |
| op.removed.add(r); |
| } |
| } |
| bse.addOp(op); |
| num++; |
| } |
| bse.mTransition = mTransition; |
| bse.mTransitionStyle = mTransitionStyle; |
| bse.mName = mName; |
| bse.mIndex = mIndex; |
| bse.mAddToBackStack = true; |
| bse.mBreadCrumbTitleRes = mBreadCrumbTitleRes; |
| bse.mBreadCrumbTitleText = mBreadCrumbTitleText; |
| bse.mBreadCrumbShortTitleRes = mBreadCrumbShortTitleRes; |
| bse.mBreadCrumbShortTitleText = mBreadCrumbShortTitleText; |
| bse.mCustomTransition = mCustomTransition; |
| bse.mSceneRoot = mSceneRoot; |
| bse.mSharedElementSourceNames = mSharedElementSourceNames; |
| bse.mSharedElementTargetNames = mSharedElementTargetNames; |
| bse.bumpBackStackNesting(1); |
| return bse; |
| } |
| |
| public int describeContents() { |
| return 0; |
| } |
| |
| public void writeToParcel(Parcel dest, int flags) { |
| dest.writeIntArray(mOps); |
| dest.writeInt(mTransition); |
| dest.writeInt(mTransitionStyle); |
| dest.writeString(mName); |
| dest.writeInt(mIndex); |
| dest.writeInt(mBreadCrumbTitleRes); |
| TextUtils.writeToParcel(mBreadCrumbTitleText, dest, 0); |
| dest.writeInt(mBreadCrumbShortTitleRes); |
| TextUtils.writeToParcel(mBreadCrumbShortTitleText, dest, 0); |
| dest.writeInt(mCustomTransition); |
| dest.writeInt(mSceneRoot); |
| dest.writeStringList(mSharedElementSourceNames); |
| dest.writeStringList(mSharedElementTargetNames); |
| } |
| |
| public static final Parcelable.Creator<BackStackState> CREATOR |
| = new Parcelable.Creator<BackStackState>() { |
| public BackStackState createFromParcel(Parcel in) { |
| return new BackStackState(in); |
| } |
| |
| public BackStackState[] newArray(int size) { |
| return new BackStackState[size]; |
| } |
| }; |
| } |
| |
| /** |
| * @hide Entry of an operation on the fragment back stack. |
| */ |
| final class BackStackRecord extends FragmentTransaction implements |
| FragmentManager.BackStackEntry, Runnable { |
| static final String TAG = FragmentManagerImpl.TAG; |
| |
| final FragmentManagerImpl mManager; |
| |
| static final int OP_NULL = 0; |
| static final int OP_ADD = 1; |
| static final int OP_REPLACE = 2; |
| static final int OP_REMOVE = 3; |
| static final int OP_HIDE = 4; |
| static final int OP_SHOW = 5; |
| static final int OP_DETACH = 6; |
| static final int OP_ATTACH = 7; |
| |
| static final class Op { |
| Op next; |
| Op prev; |
| int cmd; |
| Fragment fragment; |
| int enterAnim; |
| int exitAnim; |
| int popEnterAnim; |
| int popExitAnim; |
| ArrayList<Fragment> removed; |
| } |
| |
| Op mHead; |
| Op mTail; |
| int mNumOp; |
| int mEnterAnim; |
| int mExitAnim; |
| int mPopEnterAnim; |
| int mPopExitAnim; |
| int mTransition; |
| int mTransitionStyle; |
| boolean mAddToBackStack; |
| boolean mAllowAddToBackStack = true; |
| String mName; |
| boolean mCommitted; |
| int mIndex = -1; |
| |
| int mBreadCrumbTitleRes; |
| CharSequence mBreadCrumbTitleText; |
| int mBreadCrumbShortTitleRes; |
| CharSequence mBreadCrumbShortTitleText; |
| |
| int mCustomTransition; |
| int mSceneRoot; |
| ArrayList<String> mSharedElementSourceNames; |
| ArrayList<String> mSharedElementTargetNames; |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(128); |
| sb.append("BackStackEntry{"); |
| sb.append(Integer.toHexString(System.identityHashCode(this))); |
| if (mIndex >= 0) { |
| sb.append(" #"); |
| sb.append(mIndex); |
| } |
| if (mName != null) { |
| sb.append(" "); |
| sb.append(mName); |
| } |
| sb.append("}"); |
| return sb.toString(); |
| } |
| |
| public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { |
| dump(prefix, writer, true); |
| } |
| |
| void dump(String prefix, PrintWriter writer, boolean full) { |
| if (full) { |
| writer.print(prefix); |
| writer.print("mName="); |
| writer.print(mName); |
| writer.print(" mIndex="); |
| writer.print(mIndex); |
| writer.print(" mCommitted="); |
| writer.println(mCommitted); |
| if (mTransition != FragmentTransaction.TRANSIT_NONE) { |
| writer.print(prefix); |
| writer.print("mTransition=#"); |
| writer.print(Integer.toHexString(mTransition)); |
| writer.print(" mTransitionStyle=#"); |
| writer.println(Integer.toHexString(mTransitionStyle)); |
| } |
| if (mEnterAnim != 0 || mExitAnim != 0) { |
| writer.print(prefix); |
| writer.print("mEnterAnim=#"); |
| writer.print(Integer.toHexString(mEnterAnim)); |
| writer.print(" mExitAnim=#"); |
| writer.println(Integer.toHexString(mExitAnim)); |
| } |
| if (mPopEnterAnim != 0 || mPopExitAnim != 0) { |
| writer.print(prefix); |
| writer.print("mPopEnterAnim=#"); |
| writer.print(Integer.toHexString(mPopEnterAnim)); |
| writer.print(" mPopExitAnim=#"); |
| writer.println(Integer.toHexString(mPopExitAnim)); |
| } |
| if (mBreadCrumbTitleRes != 0 || mBreadCrumbTitleText != null) { |
| writer.print(prefix); |
| writer.print("mBreadCrumbTitleRes=#"); |
| writer.print(Integer.toHexString(mBreadCrumbTitleRes)); |
| writer.print(" mBreadCrumbTitleText="); |
| writer.println(mBreadCrumbTitleText); |
| } |
| if (mBreadCrumbShortTitleRes != 0 || mBreadCrumbShortTitleText != null) { |
| writer.print(prefix); |
| writer.print("mBreadCrumbShortTitleRes=#"); |
| writer.print(Integer.toHexString(mBreadCrumbShortTitleRes)); |
| writer.print(" mBreadCrumbShortTitleText="); |
| writer.println(mBreadCrumbShortTitleText); |
| } |
| } |
| |
| if (mHead != null) { |
| writer.print(prefix); |
| writer.println("Operations:"); |
| String innerPrefix = prefix + " "; |
| Op op = mHead; |
| int num = 0; |
| while (op != null) { |
| String cmdStr; |
| switch (op.cmd) { |
| case OP_NULL: |
| cmdStr = "NULL"; |
| break; |
| case OP_ADD: |
| cmdStr = "ADD"; |
| break; |
| case OP_REPLACE: |
| cmdStr = "REPLACE"; |
| break; |
| case OP_REMOVE: |
| cmdStr = "REMOVE"; |
| break; |
| case OP_HIDE: |
| cmdStr = "HIDE"; |
| break; |
| case OP_SHOW: |
| cmdStr = "SHOW"; |
| break; |
| case OP_DETACH: |
| cmdStr = "DETACH"; |
| break; |
| case OP_ATTACH: |
| cmdStr = "ATTACH"; |
| break; |
| default: |
| cmdStr = "cmd=" + op.cmd; |
| break; |
| } |
| writer.print(prefix); |
| writer.print(" Op #"); |
| writer.print(num); |
| writer.print(": "); |
| writer.print(cmdStr); |
| writer.print(" "); |
| writer.println(op.fragment); |
| if (full) { |
| if (op.enterAnim != 0 || op.exitAnim != 0) { |
| writer.print(innerPrefix); |
| writer.print("enterAnim=#"); |
| writer.print(Integer.toHexString(op.enterAnim)); |
| writer.print(" exitAnim=#"); |
| writer.println(Integer.toHexString(op.exitAnim)); |
| } |
| if (op.popEnterAnim != 0 || op.popExitAnim != 0) { |
| writer.print(innerPrefix); |
| writer.print("popEnterAnim=#"); |
| writer.print(Integer.toHexString(op.popEnterAnim)); |
| writer.print(" popExitAnim=#"); |
| writer.println(Integer.toHexString(op.popExitAnim)); |
| } |
| } |
| if (op.removed != null && op.removed.size() > 0) { |
| for (int i = 0; i < op.removed.size(); i++) { |
| writer.print(innerPrefix); |
| if (op.removed.size() == 1) { |
| writer.print("Removed: "); |
| } else { |
| if (i == 0) { |
| writer.println("Removed:"); |
| } |
| writer.print(innerPrefix); |
| writer.print(" #"); |
| writer.print(i); |
| writer.print(": "); |
| } |
| writer.println(op.removed.get(i)); |
| } |
| } |
| op = op.next; |
| num++; |
| } |
| } |
| } |
| |
| public BackStackRecord(FragmentManagerImpl manager) { |
| mManager = manager; |
| } |
| |
| public int getId() { |
| return mIndex; |
| } |
| |
| public int getBreadCrumbTitleRes() { |
| return mBreadCrumbTitleRes; |
| } |
| |
| public int getBreadCrumbShortTitleRes() { |
| return mBreadCrumbShortTitleRes; |
| } |
| |
| public CharSequence getBreadCrumbTitle() { |
| if (mBreadCrumbTitleRes != 0) { |
| return mManager.mActivity.getText(mBreadCrumbTitleRes); |
| } |
| return mBreadCrumbTitleText; |
| } |
| |
| public CharSequence getBreadCrumbShortTitle() { |
| if (mBreadCrumbShortTitleRes != 0) { |
| return mManager.mActivity.getText(mBreadCrumbShortTitleRes); |
| } |
| return mBreadCrumbShortTitleText; |
| } |
| |
| void addOp(Op op) { |
| if (mHead == null) { |
| mHead = mTail = op; |
| } else { |
| op.prev = mTail; |
| mTail.next = op; |
| mTail = op; |
| } |
| op.enterAnim = mEnterAnim; |
| op.exitAnim = mExitAnim; |
| op.popEnterAnim = mPopEnterAnim; |
| op.popExitAnim = mPopExitAnim; |
| mNumOp++; |
| } |
| |
| public FragmentTransaction add(Fragment fragment, String tag) { |
| doAddOp(0, fragment, tag, OP_ADD); |
| return this; |
| } |
| |
| public FragmentTransaction add(int containerViewId, Fragment fragment) { |
| doAddOp(containerViewId, fragment, null, OP_ADD); |
| return this; |
| } |
| |
| public FragmentTransaction add(int containerViewId, Fragment fragment, String tag) { |
| doAddOp(containerViewId, fragment, tag, OP_ADD); |
| return this; |
| } |
| |
| private void doAddOp(int containerViewId, Fragment fragment, String tag, int opcmd) { |
| fragment.mFragmentManager = mManager; |
| |
| if (tag != null) { |
| if (fragment.mTag != null && !tag.equals(fragment.mTag)) { |
| throw new IllegalStateException("Can't change tag of fragment " |
| + fragment + ": was " + fragment.mTag |
| + " now " + tag); |
| } |
| fragment.mTag = tag; |
| } |
| |
| if (containerViewId != 0) { |
| if (fragment.mFragmentId != 0 && fragment.mFragmentId != containerViewId) { |
| throw new IllegalStateException("Can't change container ID of fragment " |
| + fragment + ": was " + fragment.mFragmentId |
| + " now " + containerViewId); |
| } |
| fragment.mContainerId = fragment.mFragmentId = containerViewId; |
| } |
| |
| Op op = new Op(); |
| op.cmd = opcmd; |
| op.fragment = fragment; |
| addOp(op); |
| } |
| |
| public FragmentTransaction replace(int containerViewId, Fragment fragment) { |
| return replace(containerViewId, fragment, null); |
| } |
| |
| public FragmentTransaction replace(int containerViewId, Fragment fragment, String tag) { |
| if (containerViewId == 0) { |
| throw new IllegalArgumentException("Must use non-zero containerViewId"); |
| } |
| |
| doAddOp(containerViewId, fragment, tag, OP_REPLACE); |
| return this; |
| } |
| |
| public FragmentTransaction remove(Fragment fragment) { |
| Op op = new Op(); |
| op.cmd = OP_REMOVE; |
| op.fragment = fragment; |
| addOp(op); |
| |
| return this; |
| } |
| |
| public FragmentTransaction hide(Fragment fragment) { |
| Op op = new Op(); |
| op.cmd = OP_HIDE; |
| op.fragment = fragment; |
| addOp(op); |
| |
| return this; |
| } |
| |
| public FragmentTransaction show(Fragment fragment) { |
| Op op = new Op(); |
| op.cmd = OP_SHOW; |
| op.fragment = fragment; |
| addOp(op); |
| |
| return this; |
| } |
| |
| public FragmentTransaction detach(Fragment fragment) { |
| Op op = new Op(); |
| op.cmd = OP_DETACH; |
| op.fragment = fragment; |
| addOp(op); |
| |
| return this; |
| } |
| |
| public FragmentTransaction attach(Fragment fragment) { |
| Op op = new Op(); |
| op.cmd = OP_ATTACH; |
| op.fragment = fragment; |
| addOp(op); |
| |
| return this; |
| } |
| |
| public FragmentTransaction setCustomAnimations(int enter, int exit) { |
| return setCustomAnimations(enter, exit, 0, 0); |
| } |
| |
| public FragmentTransaction setCustomAnimations(int enter, int exit, |
| int popEnter, int popExit) { |
| mEnterAnim = enter; |
| mExitAnim = exit; |
| mPopEnterAnim = popEnter; |
| mPopExitAnim = popExit; |
| return this; |
| } |
| |
| public FragmentTransaction setTransition(int transition) { |
| mTransition = transition; |
| return this; |
| } |
| |
| @Override |
| public FragmentTransaction setCustomTransition(int sceneRootId, int transitionId) { |
| mSceneRoot = sceneRootId; |
| mCustomTransition = transitionId; |
| return this; |
| } |
| |
| @Override |
| public FragmentTransaction setSharedElement(View sharedElement, String name) { |
| String transitionName = sharedElement.getTransitionName(); |
| if (transitionName == null) { |
| throw new IllegalArgumentException("Unique transitionNames are required for all" + |
| " sharedElements"); |
| } |
| mSharedElementSourceNames = new ArrayList<String>(1); |
| mSharedElementSourceNames.add(transitionName); |
| |
| mSharedElementTargetNames = new ArrayList<String>(1); |
| mSharedElementTargetNames.add(name); |
| return this; |
| } |
| |
| @Override |
| public FragmentTransaction setSharedElements(Pair<View, String>... sharedElements) { |
| if (sharedElements == null || sharedElements.length == 0) { |
| mSharedElementSourceNames = null; |
| mSharedElementTargetNames = null; |
| } else { |
| ArrayList<String> sourceNames = new ArrayList<String>(sharedElements.length); |
| ArrayList<String> targetNames = new ArrayList<String>(sharedElements.length); |
| for (int i = 0; i < sharedElements.length; i++) { |
| String transitionName = sharedElements[i].first.getTransitionName(); |
| if (transitionName == null) { |
| throw new IllegalArgumentException("Unique transitionNames are required for all" |
| + " sharedElements"); |
| } |
| sourceNames.add(transitionName); |
| targetNames.add(sharedElements[i].second); |
| } |
| mSharedElementSourceNames = sourceNames; |
| mSharedElementTargetNames = targetNames; |
| } |
| return this; |
| } |
| |
| public FragmentTransaction setTransitionStyle(int styleRes) { |
| mTransitionStyle = styleRes; |
| return this; |
| } |
| |
| public FragmentTransaction addToBackStack(String name) { |
| if (!mAllowAddToBackStack) { |
| throw new IllegalStateException( |
| "This FragmentTransaction is not allowed to be added to the back stack."); |
| } |
| mAddToBackStack = true; |
| mName = name; |
| return this; |
| } |
| |
| public boolean isAddToBackStackAllowed() { |
| return mAllowAddToBackStack; |
| } |
| |
| public FragmentTransaction disallowAddToBackStack() { |
| if (mAddToBackStack) { |
| throw new IllegalStateException( |
| "This transaction is already being added to the back stack"); |
| } |
| mAllowAddToBackStack = false; |
| return this; |
| } |
| |
| public FragmentTransaction setBreadCrumbTitle(int res) { |
| mBreadCrumbTitleRes = res; |
| mBreadCrumbTitleText = null; |
| return this; |
| } |
| |
| public FragmentTransaction setBreadCrumbTitle(CharSequence text) { |
| mBreadCrumbTitleRes = 0; |
| mBreadCrumbTitleText = text; |
| return this; |
| } |
| |
| public FragmentTransaction setBreadCrumbShortTitle(int res) { |
| mBreadCrumbShortTitleRes = res; |
| mBreadCrumbShortTitleText = null; |
| return this; |
| } |
| |
| public FragmentTransaction setBreadCrumbShortTitle(CharSequence text) { |
| mBreadCrumbShortTitleRes = 0; |
| mBreadCrumbShortTitleText = text; |
| return this; |
| } |
| |
| void bumpBackStackNesting(int amt) { |
| if (!mAddToBackStack) { |
| return; |
| } |
| if (FragmentManagerImpl.DEBUG) { |
| Log.v(TAG, "Bump nesting in " + this |
| + " by " + amt); |
| } |
| Op op = mHead; |
| while (op != null) { |
| if (op.fragment != null) { |
| op.fragment.mBackStackNesting += amt; |
| if (FragmentManagerImpl.DEBUG) { |
| Log.v(TAG, "Bump nesting of " |
| + op.fragment + " to " + op.fragment.mBackStackNesting); |
| } |
| } |
| if (op.removed != null) { |
| for (int i = op.removed.size() - 1; i >= 0; i--) { |
| Fragment r = op.removed.get(i); |
| r.mBackStackNesting += amt; |
| if (FragmentManagerImpl.DEBUG) { |
| Log.v(TAG, "Bump nesting of " |
| + r + " to " + r.mBackStackNesting); |
| } |
| } |
| } |
| op = op.next; |
| } |
| } |
| |
| public int commit() { |
| return commitInternal(false); |
| } |
| |
| public int commitAllowingStateLoss() { |
| return commitInternal(true); |
| } |
| |
| int commitInternal(boolean allowStateLoss) { |
| if (mCommitted) { |
| throw new IllegalStateException("commit already called"); |
| } |
| if (FragmentManagerImpl.DEBUG) { |
| Log.v(TAG, "Commit: " + this); |
| LogWriter logw = new LogWriter(Log.VERBOSE, TAG); |
| PrintWriter pw = new FastPrintWriter(logw, false, 1024); |
| dump(" ", null, pw, null); |
| pw.flush(); |
| } |
| mCommitted = true; |
| if (mAddToBackStack) { |
| mIndex = mManager.allocBackStackIndex(this); |
| } else { |
| mIndex = -1; |
| } |
| mManager.enqueueAction(this, allowStateLoss); |
| return mIndex; |
| } |
| |
| public void run() { |
| if (FragmentManagerImpl.DEBUG) { |
| Log.v(TAG, "Run: " + this); |
| } |
| |
| if (mAddToBackStack) { |
| if (mIndex < 0) { |
| throw new IllegalStateException("addToBackStack() called after commit()"); |
| } |
| } |
| |
| bumpBackStackNesting(1); |
| |
| TransitionState state = beginTransition(mSharedElementSourceNames, |
| mSharedElementTargetNames); |
| |
| Op op = mHead; |
| while (op != null) { |
| switch (op.cmd) { |
| case OP_ADD: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.enterAnim; |
| mManager.addFragment(f, false); |
| } |
| break; |
| case OP_REPLACE: { |
| Fragment f = op.fragment; |
| if (mManager.mAdded != null) { |
| for (int i = 0; i < mManager.mAdded.size(); i++) { |
| Fragment old = mManager.mAdded.get(i); |
| if (FragmentManagerImpl.DEBUG) { |
| Log.v(TAG, |
| "OP_REPLACE: adding=" + f + " old=" + old); |
| } |
| if (f == null || old.mContainerId == f.mContainerId) { |
| if (old == f) { |
| op.fragment = f = null; |
| } else { |
| if (op.removed == null) { |
| op.removed = new ArrayList<Fragment>(); |
| } |
| op.removed.add(old); |
| old.mNextAnim = op.exitAnim; |
| if (mAddToBackStack) { |
| old.mBackStackNesting += 1; |
| if (FragmentManagerImpl.DEBUG) { |
| Log.v(TAG, "Bump nesting of " |
| + old + " to " + old.mBackStackNesting); |
| } |
| } |
| mManager.removeFragment(old, mTransition, mTransitionStyle); |
| } |
| } |
| } |
| } |
| if (f != null) { |
| f.mNextAnim = op.enterAnim; |
| mManager.addFragment(f, false); |
| } |
| } |
| break; |
| case OP_REMOVE: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.exitAnim; |
| mManager.removeFragment(f, mTransition, mTransitionStyle); |
| } |
| break; |
| case OP_HIDE: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.exitAnim; |
| mManager.hideFragment(f, mTransition, mTransitionStyle); |
| } |
| break; |
| case OP_SHOW: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.enterAnim; |
| mManager.showFragment(f, mTransition, mTransitionStyle); |
| } |
| break; |
| case OP_DETACH: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.exitAnim; |
| mManager.detachFragment(f, mTransition, mTransitionStyle); |
| } |
| break; |
| case OP_ATTACH: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.enterAnim; |
| mManager.attachFragment(f, mTransition, mTransitionStyle); |
| } |
| break; |
| default: { |
| throw new IllegalArgumentException("Unknown cmd: " + op.cmd); |
| } |
| } |
| |
| op = op.next; |
| } |
| |
| mManager.moveToState(mManager.mCurState, mTransition, |
| mTransitionStyle, true); |
| |
| if (mAddToBackStack) { |
| mManager.addBackStackState(this); |
| } |
| |
| if (state != null) { |
| updateTransitionEndState(state, mSharedElementTargetNames); |
| } |
| } |
| |
| private TransitionState beginTransition(ArrayList<String> sourceNames, |
| ArrayList<String> targetNames) { |
| if (mCustomTransition <= 0 || mSceneRoot <= 0) { |
| return null; |
| } |
| View rootView = mManager.mContainer.findViewById(mSceneRoot); |
| if (!(rootView instanceof ViewGroup)) { |
| throw new IllegalArgumentException("SceneRoot is not a ViewGroup"); |
| } |
| TransitionState state = new TransitionState(); |
| // get Transition scene root and create Transitions |
| state.sceneRoot = (ViewGroup) rootView; |
| state.sceneRoot.captureTransitioningViews(state.transitioningViews); |
| |
| state.exitTransition = TransitionInflater.from(mManager.mActivity) |
| .inflateTransition(mCustomTransition); |
| state.sharedElementTransition = TransitionInflater.from(mManager.mActivity) |
| .inflateTransition(mCustomTransition); |
| state.enterTransition = TransitionInflater.from(mManager.mActivity) |
| .inflateTransition(mCustomTransition); |
| // Adding a non-existent target view makes sure that the transitions don't target |
| // any views by default. They'll only target the views we tell add. If we don't |
| // add any, then no views will be targeted. |
| View nonExistentView = new View(mManager.mActivity); |
| state.enterTransition.addTarget(nonExistentView); |
| state.exitTransition.addTarget(nonExistentView); |
| state.sharedElementTransition.addTarget(nonExistentView); |
| |
| setSharedElementEpicenter(state.enterTransition, state); |
| |
| state.excludingTransition = new TransitionSet() |
| .addTransition(state.exitTransition) |
| .addTransition(state.enterTransition); |
| |
| if (sourceNames != null) { |
| // Map shared elements. |
| state.sceneRoot.findNamedViews(state.namedViews); |
| state.namedViews.retainAll(sourceNames); |
| View epicenterView = state.namedViews.get(sourceNames.get(0)); |
| if (epicenterView != null) { |
| // The epicenter is only the first shared element. |
| setEpicenter(state.exitTransition, epicenterView); |
| setEpicenter(state.sharedElementTransition, epicenterView); |
| } |
| state.transitioningViews.removeAll(state.namedViews.values()); |
| state.excludingTransition.addTransition(state.sharedElementTransition); |
| addTransitioningViews(state.sharedElementTransition, state.namedViews.values()); |
| } |
| |
| // Adds the (maybe) exiting views, not including the shared element. |
| // If some stay, that's ok. |
| addTransitioningViews(state.exitTransition, state.transitioningViews); |
| |
| // Prepare for shared element name mapping. This could be chained in the case |
| // of popping several back stack states. |
| state.excludingTransition.setNameOverrides(new ArrayMap<String, String>()); |
| setNameOverrides(state, sourceNames, targetNames); |
| |
| // Don't include any subtree in the views that are hidden when capturing the |
| // view hierarchy transitions. They should be as if not there. |
| excludeHiddenFragments(state, true); |
| |
| TransitionManager.beginDelayedTransition(state.sceneRoot, state.excludingTransition); |
| return state; |
| } |
| |
| private void updateTransitionEndState(TransitionState state, ArrayList<String> names) { |
| // Find all views that are entering. |
| ArrayList<View> enteringViews = new ArrayList<View>(); |
| state.sceneRoot.captureTransitioningViews(enteringViews); |
| enteringViews.removeAll(state.transitioningViews); |
| |
| if (names != null) { |
| // find all shared elements. |
| state.namedViews.clear(); |
| state.sceneRoot.findNamedViews(state.namedViews); |
| state.namedViews.retainAll(names); |
| if (!state.namedViews.isEmpty()) { |
| enteringViews.removeAll(state.namedViews.values()); |
| addTransitioningViews(state.sharedElementTransition, state.namedViews.values()); |
| // now we know the epicenter of the entering transition. |
| state.mEnteringEpicenterView = state.namedViews.get(names.get(0)); |
| } |
| } |
| |
| // Add all entering views to the enter transition. |
| addTransitioningViews(state.enterTransition, enteringViews); |
| |
| // Don't allow capturing state for the newly-hidden fragments. |
| excludeHiddenFragments(state, false); |
| |
| // Allow capturing state for the newly-shown fragments |
| includeVisibleFragments(state.excludingTransition); |
| } |
| |
| private void addTransitioningViews(Transition transition, Collection<View> views) { |
| if (views.isEmpty()) { |
| // Add a view so that we can modify the valid views at the end of the |
| // fragment transaction. |
| transition.addTarget(new View(mManager.mActivity)); |
| } else { |
| for (View view : views) { |
| transition.addTarget(view); |
| } |
| } |
| } |
| |
| private void excludeHiddenFragments(TransitionState state, boolean forceExclude) { |
| if (mManager.mAdded != null) { |
| for (int i = 0; i < mManager.mAdded.size(); i++) { |
| Fragment fragment = mManager.mAdded.get(i); |
| if (fragment.mView != null && fragment.mHidden |
| && (forceExclude || !state.hiddenViews.contains(fragment.mView))) { |
| state.excludingTransition.excludeTarget(fragment.mView, true); |
| state.hiddenViews.add(fragment.mView); |
| } |
| } |
| } |
| if (forceExclude && state.hiddenViews.isEmpty()) { |
| state.excludingTransition.excludeTarget(new View(mManager.mActivity), true); |
| } |
| } |
| |
| private void includeVisibleFragments(Transition transition) { |
| if (mManager.mAdded != null) { |
| for (int i = 0; i < mManager.mAdded.size(); i++) { |
| Fragment fragment = mManager.mAdded.get(i); |
| if (fragment.mView != null && !fragment.mHidden) { |
| transition.excludeTarget(fragment.mView, false); |
| } |
| } |
| } |
| } |
| |
| private static void setEpicenter(Transition transition, View view) { |
| final Rect epicenter = new Rect(); |
| view.getBoundsOnScreen(epicenter); |
| |
| transition.setEpicenterCallback(new Transition.EpicenterCallback() { |
| @Override |
| public Rect onGetEpicenter(Transition transition) { |
| return epicenter; |
| } |
| }); |
| } |
| |
| private void setSharedElementEpicenter(Transition transition, final TransitionState state) { |
| transition.setEpicenterCallback(new Transition.EpicenterCallback() { |
| private Rect mEpicenter; |
| |
| @Override |
| public Rect onGetEpicenter(Transition transition) { |
| if (mEpicenter == null && state.mEnteringEpicenterView != null) { |
| mEpicenter = new Rect(); |
| state.mEnteringEpicenterView.getBoundsOnScreen(mEpicenter); |
| } |
| return mEpicenter; |
| } |
| }); |
| } |
| |
| public TransitionState popFromBackStack(boolean doStateMove, TransitionState state) { |
| if (FragmentManagerImpl.DEBUG) { |
| Log.v(TAG, "popFromBackStack: " + this); |
| LogWriter logw = new LogWriter(Log.VERBOSE, TAG); |
| PrintWriter pw = new FastPrintWriter(logw, false, 1024); |
| dump(" ", null, pw, null); |
| pw.flush(); |
| } |
| |
| if (state == null) { |
| state = beginTransition(mSharedElementTargetNames, mSharedElementSourceNames); |
| } else { |
| setNameOverrides(state, mSharedElementTargetNames, mSharedElementSourceNames); |
| } |
| |
| bumpBackStackNesting(-1); |
| |
| Op op = mTail; |
| while (op != null) { |
| switch (op.cmd) { |
| case OP_ADD: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.popExitAnim; |
| mManager.removeFragment(f, |
| FragmentManagerImpl.reverseTransit(mTransition), |
| mTransitionStyle); |
| } |
| break; |
| case OP_REPLACE: { |
| Fragment f = op.fragment; |
| if (f != null) { |
| f.mNextAnim = op.popExitAnim; |
| mManager.removeFragment(f, |
| FragmentManagerImpl.reverseTransit(mTransition), |
| mTransitionStyle); |
| } |
| if (op.removed != null) { |
| for (int i = 0; i < op.removed.size(); i++) { |
| Fragment old = op.removed.get(i); |
| old.mNextAnim = op.popEnterAnim; |
| mManager.addFragment(old, false); |
| } |
| } |
| } |
| break; |
| case OP_REMOVE: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.popEnterAnim; |
| mManager.addFragment(f, false); |
| } |
| break; |
| case OP_HIDE: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.popEnterAnim; |
| mManager.showFragment(f, |
| FragmentManagerImpl.reverseTransit(mTransition), mTransitionStyle); |
| } |
| break; |
| case OP_SHOW: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.popExitAnim; |
| mManager.hideFragment(f, |
| FragmentManagerImpl.reverseTransit(mTransition), mTransitionStyle); |
| } |
| break; |
| case OP_DETACH: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.popEnterAnim; |
| mManager.attachFragment(f, |
| FragmentManagerImpl.reverseTransit(mTransition), mTransitionStyle); |
| } |
| break; |
| case OP_ATTACH: { |
| Fragment f = op.fragment; |
| f.mNextAnim = op.popExitAnim; |
| mManager.detachFragment(f, |
| FragmentManagerImpl.reverseTransit(mTransition), mTransitionStyle); |
| } |
| break; |
| default: { |
| throw new IllegalArgumentException("Unknown cmd: " + op.cmd); |
| } |
| } |
| |
| op = op.prev; |
| } |
| |
| if (doStateMove) { |
| mManager.moveToState(mManager.mCurState, |
| FragmentManagerImpl.reverseTransit(mTransition), mTransitionStyle, true); |
| if (state != null) { |
| updateTransitionEndState(state, mSharedElementSourceNames); |
| state = null; |
| } |
| } |
| |
| if (mIndex >= 0) { |
| mManager.freeBackStackIndex(mIndex); |
| mIndex = -1; |
| } |
| return state; |
| } |
| |
| private static void setNameOverride(Transition transition, String source, String target) { |
| ArrayMap<String, String> overrides = transition.getNameOverrides(); |
| for (int index = 0; index < overrides.size(); index++) { |
| if (source.equals(overrides.valueAt(index))) { |
| overrides.setValueAt(index, target); |
| return; |
| } |
| } |
| overrides.put(source, target); |
| } |
| |
| private static void setNameOverrides(TransitionState state, ArrayList<String> sourceNames, |
| ArrayList<String> targetNames) { |
| if (sourceNames != null) { |
| for (int i = 0; i < sourceNames.size(); i++) { |
| String source = sourceNames.get(i); |
| String target = targetNames.get(i); |
| setNameOverride(state.excludingTransition, source, target); |
| } |
| } |
| } |
| |
| public String getName() { |
| return mName; |
| } |
| |
| public int getTransition() { |
| return mTransition; |
| } |
| |
| public int getTransitionStyle() { |
| return mTransitionStyle; |
| } |
| |
| public boolean isEmpty() { |
| return mNumOp == 0; |
| } |
| |
| public class TransitionState { |
| public ArrayList<View> hiddenViews = new ArrayList<View>(); |
| public ArrayList<View> transitioningViews = new ArrayList<View>(); |
| public ArrayMap<String, View> namedViews = new ArrayMap<String, View>(); |
| public Transition exitTransition; |
| public Transition sharedElementTransition; |
| public Transition enterTransition; |
| public TransitionSet excludingTransition; |
| public ViewGroup sceneRoot; |
| public View mEnteringEpicenterView; |
| } |
| } |