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Commit 710ff711 authored by Evan Rosky's avatar Evan Rosky
Browse files

Add support/adapter for recents animation via shell transition 

This does the basics to adapt recents animation to shell transition.

Replaces startRecentsActivity with a normal startActivity. Once
we make a full switch to shell transitions, we can hopefully remove
it.

Updates the TransitionHandlers in shell and RemoteTransitions to
support attaching a WindowContainerTransaction to a transition's
finish. For recents, this is used to move the "pausing" app (the
one getting animated into the recents carousel) back to the front
if the gesture doesn't go all-the-way into recents.

Bug: 162503077
Test: enable shell transit. launch an app, use gesture to open
      recents. use gesture to start going to recents, but then
      release early to return to the app.
      atest ShellTransitionTests
Change-Id: Ied54f1b2c70c5c129b2f5798117d6d8a85360998
parent f0d0d2af

core/java/android/app/ActivityOptions.java

+12 −0
Original line number Diff line number Diff line
@@ -987,6 +987,18 @@ public class ActivityOptions { 
        return opts;

    }



    /**

     * Create an {@link ActivityOptions} instance that lets the application control the entire

     * transition using a {@link IRemoteTransition}.

     * @hide

     */

    @RequiresPermission(CONTROL_REMOTE_APP_TRANSITION_ANIMATIONS)

    public static ActivityOptions makeRemoteTransition(IRemoteTransition remoteTransition) {

        final ActivityOptions opts = new ActivityOptions();

        opts.mRemoteTransition = remoteTransition;

        return opts;

    }



    /** @hide */

    public boolean getLaunchTaskBehind() {

        return mAnimationType == ANIM_LAUNCH_TASK_BEHIND;

core/java/android/window/IRemoteTransition.aidl

+2 −2
Original line number Diff line number Diff line
@@ -16,8 +16,8 @@ 


package android.window;



import android.view.IRemoteAnimationFinishedCallback;

import android.view.SurfaceControl;

import android.window.IRemoteTransitionFinishedCallback;

import android.window.TransitionInfo;



/**
@@ -42,5 +42,5 @@ oneway interface IRemoteTransition { 
     * `finishCallback`.

     */

    void startAnimation(in TransitionInfo info, in SurfaceControl.Transaction t,

            in IRemoteAnimationFinishedCallback finishCallback);

            in IRemoteTransitionFinishedCallback finishCallback);

}

core/java/android/window/IRemoteTransitionFinishedCallback.aidl

0 → 100644
+29 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2020 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.window;



import android.window.WindowContainerTransaction;



/**

 * Interface to be invoked by the controlling process when a remote transition has finished.

 *

 * @see IRemoteTransition

 * {@hide}

 */

interface IRemoteTransitionFinishedCallback {

    void onTransitionFinished(in WindowContainerTransaction wct);

}

libs/WindowManager/Shell/src/com/android/wm/shell/legacysplitscreen/SplitScreenTransitions.java

+4 −3
Original line number Diff line number Diff line
@@ -64,7 +64,7 @@ public class SplitScreenTransitions implements Transitions.TransitionHandler { 
    /** Keeps track of currently running animations */

    private final ArrayList<Animator> mAnimations = new ArrayList<>();



    private Runnable mFinishCallback = null;

    private Transitions.TransitionFinishCallback mFinishCallback = null;

    private SurfaceControl.Transaction mFinishTransaction;



    SplitScreenTransitions(@NonNull TransactionPool pool, @NonNull Transitions transitions,
@@ -203,7 +203,8 @@ public class SplitScreenTransitions implements Transitions.TransitionHandler { 


    @Override

    public boolean startAnimation(@NonNull IBinder transition, @NonNull TransitionInfo info,

            @NonNull SurfaceControl.Transaction t, @NonNull Runnable finishCallback) {

            @NonNull SurfaceControl.Transaction t,

            @NonNull Transitions.TransitionFinishCallback finishCallback) {

        if (transition != mPendingDismiss && transition != mPendingEnter) {

            // If we're not in split-mode, just abort

            if (!mSplitScreen.isDividerVisible()) return false;
@@ -330,7 +331,7 @@ public class SplitScreenTransitions implements Transitions.TransitionHandler { 
        mFinishTransaction.apply();

        mTransactionPool.release(mFinishTransaction);

        mFinishTransaction = null;

        mFinishCallback.run();

        mFinishCallback.onTransitionFinished(null /* wct */, null /* wctCB */);

        mFinishCallback = null;

        if (mAnimatingTransition == mPendingEnter) {

            mPendingEnter = null;

libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java

+3 −2
Original line number Diff line number Diff line
@@ -56,7 +56,8 @@ public class DefaultTransitionHandler implements Transitions.TransitionHandler { 


    @Override

    public boolean startAnimation(@NonNull IBinder transition, @NonNull TransitionInfo info,

            @NonNull SurfaceControl.Transaction t, @NonNull Runnable finishCallback) {

            @NonNull SurfaceControl.Transaction t,

            @NonNull Transitions.TransitionFinishCallback finishCallback) {

        if (mAnimations.containsKey(transition)) {

            throw new IllegalStateException("Got a duplicate startAnimation call for "

                    + transition);
@@ -68,7 +69,7 @@ public class DefaultTransitionHandler implements Transitions.TransitionHandler { 
        final Runnable onAnimFinish = () -> {

            if (!animations.isEmpty()) return;

            mAnimations.remove(transition);

            finishCallback.run();

            finishCallback.onTransitionFinished(null /* wct */, null /* wctCB */);

        };

        for (int i = info.getChanges().size() - 1; i >= 0; --i) {

            final TransitionInfo.Change change = info.getChanges().get(i);