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Commit 2a332e4a authored by Chris Li's avatar Chris Li
Browse files

Update snapshot fade out animation 

Based on the UX feedback:
  Delay: 30ms
  Duration: 80ms
  Easing: linear

Bug: 196173550
Test: Test with demo app shopping mode
Change-Id: I1eac73ba71f6128a54e00b25674ff731695a3dc9
parent 2f47fab6

libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/TaskFragmentAnimationSpec.java

+8 −4
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ import android.view.animation.AnimationSet; 
import android.view.animation.AnimationUtils;

import android.view.animation.ClipRectAnimation;

import android.view.animation.Interpolator;

import android.view.animation.LinearInterpolator;

import android.view.animation.ScaleAnimation;

import android.view.animation.TranslateAnimation;
@@ -46,12 +47,13 @@ class TaskFragmentAnimationSpec { 


    private static final String TAG = "TaskFragAnimationSpec";

    private static final int CHANGE_ANIMATION_DURATION = 517;

    private static final int CHANGE_ANIMATION_FADE_DURATION = 82;

    private static final int CHANGE_ANIMATION_FADE_OFFSET = 67;

    private static final int CHANGE_ANIMATION_FADE_DURATION = 80;

    private static final int CHANGE_ANIMATION_FADE_OFFSET = 30;



    private final Context mContext;

    private final TransitionAnimation mTransitionAnimation;

    private final Interpolator mFastOutExtraSlowInInterpolator;

    private final LinearInterpolator mLinearInterpolator;

    private float mTransitionAnimationScaleSetting;



    TaskFragmentAnimationSpec(@NonNull Handler handler) {
@@ -61,6 +63,7 @@ class TaskFragmentAnimationSpec { 
        AttributeCache.init(mContext);

        mFastOutExtraSlowInInterpolator = AnimationUtils.loadInterpolator(

                mContext, android.R.interpolator.fast_out_extra_slow_in);

        mLinearInterpolator = new LinearInterpolator();



        // The transition animation should be adjusted based on the developer option.

        final ContentResolver resolver = mContext.getContentResolver();
@@ -129,14 +132,15 @@ class TaskFragmentAnimationSpec { 
        float startScaleY = 1.f / scaleY;



        // The start leash will be fade out.

        final AnimationSet startSet = new AnimationSet(true /* shareInterpolator */);

        startSet.setInterpolator(mFastOutExtraSlowInInterpolator);

        final AnimationSet startSet = new AnimationSet(false /* shareInterpolator */);

        final Animation startAlpha = new AlphaAnimation(1f, 0f);

        startAlpha.setInterpolator(mLinearInterpolator);

        startAlpha.setDuration(CHANGE_ANIMATION_FADE_DURATION);

        startAlpha.setStartOffset(CHANGE_ANIMATION_FADE_OFFSET);

        startSet.addAnimation(startAlpha);

        final Animation startScale = new ScaleAnimation(startScaleX, startScaleX, startScaleY,

                startScaleY);

        startScale.setInterpolator(mFastOutExtraSlowInInterpolator);

        startScale.setDuration(CHANGE_ANIMATION_DURATION);

        startSet.addAnimation(startScale);

        startSet.initialize(startBounds.width(), startBounds.height(), endBounds.width(),