Update layers' opaque property when needed

Before this change, changing a View's opacity would not be reflected
by hardware layers. This could cause layers to retain their previous
opacity.

Change-Id: Iba2c8b4242deca021651df9324cc7c585a64653d

1 files changed, 7 insertions, 0 deletions

diff --git a/core/java/android/view/HardwareLayer.java b/core/java/android/view/HardwareLayer.java
index e73f7bf786de..67c7a197590d 100644
--- a/core/java/android/view/HardwareLayer.java
+++ b/core/java/android/view/HardwareLayer.java
@@ -107,6 +107,13 @@ abstract class HardwareLayer {
     }
 
     /**
+     * Sets whether or not this layer should be considered opaque.
+     * 
+     * @param isOpaque True if the layer is opaque, false otherwise
+     */
+    abstract void setOpaque(boolean isOpaque);
+
+    /**
      * Indicates whether this layer can be rendered.
      * 
      * @return True if the layer can be rendered into, false otherwise