Remove unnecessary setLayerType() calls

Calling up setLayerType(LAYER_TYPE_HARDWARE, ..) on non-HW accelerated
devices was ending up with having a drawing cache in View that is not
quite needed for PreviewPlacerView.

bug: 8967766

Change-Id: Ic8e6eeaf536530ff5f23eb353b0a8e5ba96fa0e2

1 files changed, 6 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardView.java b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
index 2a02682e5..96286559d 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardView.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
@@ -154,6 +154,12 @@ public class KeyboardView extends View {
                 Color.red(color), Color.green(color), Color.blue(color));
     }
 
+    public void setHardwareAcceleratedDrawingEnabled(final boolean enabled) {
+        if (!enabled) return;
+        // TODO: Should use LAYER_TYPE_SOFTWARE when hardware acceleration is off?
+        setLayerType(View.LAYER_TYPE_HARDWARE, null);
+    }
+
     /**
      * Attaches a keyboard to this view. The keyboard can be switched at any time and the
      * view will re-layout itself to accommodate the keyboard.