Add physics motion to items in all apps.

Motion applied to:
- Icons
- Prediction icons
- Prediction divider

Bug: 38349031
Change-Id: I376e6e39080c8c80463a0ce8b104b05e4d576f17

src/com/android/launcher3/allapps/AllAppsRecyclerView.java

@@ -28,8 +28,8 @@ import android.view.View;
 import com.android.launcher3.BaseRecyclerView;
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.DeviceProfile;
-import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
+import com.android.launcher3.anim.SpringAnimationHandler;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.graphics.DrawableFactory;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
@@ -53,6 +53,8 @@ public class AllAppsRecyclerView extends BaseRecyclerView {
     private AllAppsBackgroundDrawable mEmptySearchBackground;
     private int mEmptySearchBackgroundTopOffset;
 
+    private SpringAnimationHandler mSpringAnimationHandler;
+
     public AllAppsRecyclerView(Context context) {
         this(context, null);
     }
@@ -75,6 +77,18 @@ public class AllAppsRecyclerView extends BaseRecyclerView {
                 R.dimen.all_apps_empty_search_bg_top_offset);
     }
 
+    public void setSpringAnimationHandler(SpringAnimationHandler springAnimationHandler) {
+        mSpringAnimationHandler = springAnimationHandler;
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent e) {
+        if (FeatureFlags.LAUNCHER3_PHYSICS && mSpringAnimationHandler != null) {
+            mSpringAnimationHandler.addMovement(e);
+        }
+        return super.onTouchEvent(e);
+    }
+
     /**
      * Sets the list of apps in this view, used to determine the fastscroll position.
      */