1 files changed, 13 insertions, 1 deletions
diff --git a/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java b/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
index d9dfd1815..07f22aada 100644
--- a/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
@@ -29,7 +29,6 @@ import android.graphics.Matrix;
 import android.graphics.Paint;
 import android.graphics.Rect;
 import android.graphics.Shader;
-import android.support.v4.graphics.ColorUtils;
 import android.util.AttributeSet;
 import android.util.FloatProperty;
 import android.util.Property;
@@ -68,6 +67,19 @@ public class TaskThumbnailView extends View {
                 }
             };
 
+    public static final Property<TaskThumbnailView, Float> DIM_ALPHA =
+            new FloatProperty<TaskThumbnailView>("dimAlpha") {
+                @Override
+                public void setValue(TaskThumbnailView thumbnail, float dimAlpha) {
+                    thumbnail.setDimAlpha(dimAlpha);
+                }
+
+                @Override
+                public Float get(TaskThumbnailView thumbnailView) {
+                    return thumbnailView.mDimAlpha;
+                }
+            };
+
     private final float mCornerRadius;
 
     private final BaseActivity mActivity;