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Commit 1a77296d authored by Johannes Gallmann's avatar Johannes Gallmann
Browse files

Fix idle frame between pre-commit and post-commit phase 

Bug: 343136429
Flag: com.android.window.flags.predictive_back_system_anims NEXTFOOD
Test: Manual, i.e. comparing before and after screen recordings
Change-Id: I93ec816a82b51ca9262f1ffe1dbb045bcec284e6
parent c14c0eac

libs/WindowManager/Shell/src/com/android/wm/shell/back/CrossActivityBackAnimation.kt

+3 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ import android.graphics.PointF 
import android.graphics.Rect

import android.graphics.RectF

import android.os.RemoteException

import android.util.TimeUtils

import android.view.Choreographer

import android.view.Display

import android.view.IRemoteAnimationFinishedCallback
@@ -259,6 +260,8 @@ abstract class CrossActivityBackAnimation( 
            .setStartValue(SPRING_SCALE)

            .setSpring(postCommitFlingSpring)

        flingAnimation.start()

        // do an animation-frame immediately to prevent idle frame

        flingAnimation.doAnimationFrame(choreographer.lastFrameTimeNanos / TimeUtils.NANOS_PER_MS)



        val valueAnimator = ValueAnimator.ofFloat(1f, 0f).setDuration(POST_COMMIT_DURATION)

        valueAnimator.addUpdateListener { animation: ValueAnimator ->