Sub display list in TextView

TextView uses a sub-display list to 'cache' the rendering of its
text. This saves time when drawing an editable text, where the blinking
cursor forces a re-draw twice per second, which creates pauses during
scrolling.

Added a sub-display list invalidation when an appearance span is
modified/added/removed.

Also added an invalidation of the display list when selection range
is changed.

Change-Id: I41e8068a12902b8a745c5bb77de8c77def76a270

1 files changed, 2 insertions, 2 deletions

diff --git a/core/java/android/view/HardwareRenderer.java b/core/java/android/view/HardwareRenderer.java
index 3f793bb24428..b7ccc7a72328 100644
--- a/core/java/android/view/HardwareRenderer.java
+++ b/core/java/android/view/HardwareRenderer.java
@@ -276,7 +276,7 @@ public abstract class HardwareRenderer {
      * 
      * @return A new display list.
      */
-    abstract DisplayList createDisplayList();
+    public abstract DisplayList createDisplayList();
 
     /**
      * Creates a new hardware layer. A hardware layer built by calling this
@@ -1083,7 +1083,7 @@ public abstract class HardwareRenderer {
         }
 
         @Override
-        DisplayList createDisplayList() {
+        public DisplayList createDisplayList() {
             return new GLES20DisplayList();
         }