Stop relying on background color attribute to set task transition background

Because the background attribute used to have a different use some apps still set it and it means we could run transitions with unexpected background colors

Test: Existing

Fixes: 200763116
Merged-In: Id42f52760cb9a681c6c33f3c261d7db5e2f71af3
Change-Id: Id42f52760cb9a681c6c33f3c261d7db5e2f71af3

1 files changed, 0 insertions, 10 deletions

diff --git a/core/java/android/view/animation/Animation.java b/core/java/android/view/animation/Animation.java
index b296d6f6a052..81e2f3ca98ec 100644
--- a/core/java/android/view/animation/Animation.java
+++ b/core/java/android/view/animation/Animation.java
@@ -19,7 +19,6 @@ package android.view.animation;
 import android.annotation.AnimRes;
 import android.annotation.ColorInt;
 import android.annotation.InterpolatorRes;
-import android.app.ActivityThread;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.res.TypedArray;
@@ -270,15 +269,6 @@ public abstract class Animation implements Cloneable {
 
         a.recycle();
 
-        Context uiContext = ActivityThread.currentActivityThread().getSystemUiContext();
-        TypedArray uiStyledAttrs = uiContext
-                .obtainStyledAttributes(attrs, com.android.internal.R.styleable.Animation);
-
-        setBackgroundColor(
-                uiStyledAttrs.getColor(com.android.internal.R.styleable.Animation_background, 0));
-
-        uiStyledAttrs.recycle();
-
         if (resID > 0) {
             setInterpolator(context, resID);
         }