diff --git a/src/com/android/launcher3/LauncherAnimUtils.java b/src/com/android/launcher3/LauncherAnimUtils.java
index 4e80d41..c20f323 100644
--- a/src/com/android/launcher3/LauncherAnimUtils.java
+++ b/src/com/android/launcher3/LauncherAnimUtils.java
@@ -26,6 +26,7 @@
 import android.util.IntProperty;
 import android.view.View;
 import android.view.ViewGroup.LayoutParams;
+import android.widget.ImageView;
 import android.widget.TextView;
 
 import com.android.launcher3.util.MultiScalePropertyFactory;
@@ -200,6 +201,23 @@
                 }
             };
 
+    public static final FloatProperty<ImageView> ROTATION_DRAWABLE_PERCENT =
+            new FloatProperty<ImageView>("drawableRotationPercent") {
+                // RotateDrawable linearly interpolates the rotation degrees between fromDegrees
+                // and toDegrees using the drawable level as a percent of its MAX_LEVEL.
+                private static final int MAX_LEVEL = 10000;
+
+                @Override
+                public void setValue(ImageView view, float percent) {
+                    view.setImageLevel((int) (percent * MAX_LEVEL));
+                }
+
+                @Override
+                public Float get(ImageView view) {
+                    return view.getDrawable().getLevel() / (float) MAX_LEVEL;
+                }
+            };
+
     /**
      * Utility method to create an {@link AnimatorListener} which executes a callback on animation
      * cancel.