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Commit d0863ae5 authored by Kevin's avatar Kevin
Browse files

Add basic home to recents anim for fallback recents 

For users/OEMs who ship with a different default launcher, we should
provide at least a basic animation from home to recents. This creates a
simple cross-fade animation if coming from a separate home activity.

Bug: 132449252
Test: Have different default launcher, go to home, go to recents
Change-Id: I5ac7b0eedbcdf1e020c31d9cf120887a4bb3826a
parent 763a7bff

go/quickstep/src/com/android/quickstep/AppToOverviewAnimationProvider.java

+6 −1
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ package com.android.quickstep; 


import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;

import static com.android.quickstep.views.IconRecentsView.REMOTE_APP_TO_OVERVIEW_DURATION;

import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME;

import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_CLOSING;

import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_OPENING;
@@ -134,7 +135,11 @@ final class AppToOverviewAnimationProvider<T extends BaseDraggingActivity> imple 
            return anim;

        }



        if (closingAppTarget.activityType == ACTIVITY_TYPE_HOME) {

            mRecentsView.playRemoteHomeToRecentsAnimation(anim, closingAppTarget, recentsTarget);

        } else {

            mRecentsView.playRemoteAppToRecentsAnimation(anim, closingAppTarget, recentsTarget);

        }



        return anim;

    }

go/quickstep/src/com/android/quickstep/views/IconRecentsView.java

+47 −0
Original line number Diff line number Diff line
@@ -641,6 +641,53 @@ public final class IconRecentsView extends FrameLayout implements Insettable { 
        mStartedEnterAnimation = true;

    }



    /**

     * Play remote app to recents animation when the app is the home activity. We use a simple

     * cross-fade here. Note this is only used if the home activity is a separate app than the

     * recents activity.

     *

     * @param anim animator set

     * @param homeTarget the home surface thats closing

     * @param recentsTarget the surface containing recents

     */

    public void playRemoteHomeToRecentsAnimation(@NonNull AnimatorSet anim,

            @NonNull RemoteAnimationTargetCompat homeTarget,

            @NonNull RemoteAnimationTargetCompat recentsTarget) {

        SyncRtSurfaceTransactionApplierCompat surfaceApplier =

                new SyncRtSurfaceTransactionApplierCompat(this);



        SurfaceParams[] params = new SurfaceParams[2];

        int boostedMode = MODE_CLOSING;



        ValueAnimator remoteHomeAnim = ValueAnimator.ofFloat(0, 1);

        remoteHomeAnim.setDuration(REMOTE_APP_TO_OVERVIEW_DURATION);



        remoteHomeAnim.addUpdateListener(valueAnimator -> {

            float val = (float) valueAnimator.getAnimatedValue();

            float alpha;

            RemoteAnimationTargetCompat visibleTarget;

            RemoteAnimationTargetCompat invisibleTarget;

            if (val < .5f) {

                visibleTarget = homeTarget;

                invisibleTarget = recentsTarget;

                alpha = 1 - (val * 2);

            } else {

                visibleTarget = recentsTarget;

                invisibleTarget = homeTarget;

                alpha = (val - .5f) * 2;

            }

            params[0] = new SurfaceParams(visibleTarget.leash, alpha, null /* matrix */,

                    null /* windowCrop */, getLayer(visibleTarget, boostedMode),

                    0 /* cornerRadius */);

            params[1] = new SurfaceParams(invisibleTarget.leash, 0.0f, null /* matrix */,

                    null /* windowCrop */, getLayer(invisibleTarget, boostedMode),

                    0 /* cornerRadius */);

            surfaceApplier.scheduleApply(params);

        });

        anim.play(remoteHomeAnim);

        animateFadeInLayoutAnimation();

    }



    /**

     * Play remote animation from app to recents. This should scale the currently closing app down

     * to the recents thumbnail.