Fix issue #5128639: SystemUI grows by 10MB after taking a screenshot

We now do the screenshot in a separate process.

Also change the recents panel to not use hardware acceleration
on lower-end devices.  And improve how it gets shown to not
load all data up-front which results in a long delay when you have
lots of recents.

Change-Id: Ia309a90f9939e5405758621b3f7114597bd0c02a

1 files changed, 10 insertions, 1 deletions

diff --git a/graphics/java/android/graphics/drawable/LayerDrawable.java b/graphics/java/android/graphics/drawable/LayerDrawable.java
index 49dbbca..6698d31 100644
--- a/graphics/java/android/graphics/drawable/LayerDrawable.java
+++ b/graphics/java/android/graphics/drawable/LayerDrawable.java
@@ -277,10 +277,19 @@ public class LayerDrawable extends Drawable implements Drawable.Callback {
      */
     public boolean setDrawableByLayerId(int id, Drawable drawable) {
         final ChildDrawable[] layers = mLayerState.mChildren;
-        drawable.setCallback(this);
         
         for (int i = mLayerState.mNum - 1; i >= 0; i--) {
             if (layers[i].mId == id) {
+                if (layers[i].mDrawable != null) {
+                    if (drawable != null) {
+                        Rect bounds = layers[i].mDrawable.getBounds();
+                        drawable.setBounds(bounds);
+                    }
+                    layers[i].mDrawable.setCallback(null);
+                }
+                if (drawable != null) {
+                    drawable.setCallback(this);
+                }
                 layers[i].mDrawable = drawable;
                 return true;
             }