Add unfold animation to launcher icons and widgets

Adds unfold animation to launcher which translates
icons and widgets from the center to the sides on
foldable devices.

Bug: 193794541
Test: manual
Change-Id: I9d6e018a0451d342f02dddea47bc180781c31d43

src/com/android/launcher3/widget/NavigableAppWidgetHostView.java

@@ -49,6 +49,8 @@ public abstract class NavigableAppWidgetHostView extends AppWidgetHostView
      */
     private final PointF mTranslationForCentering = new PointF(0, 0);
 
+    private final PointF mTranslationForMoveFromCenterAnimation = new PointF(0, 0);
+
     private final PointF mTranslationForReorderBounce = new PointF(0, 0);
     private final PointF mTranslationForReorderPreview = new PointF(0, 0);
     private float mScaleForReorderBounce = 1f;
@@ -167,9 +169,9 @@ public abstract class NavigableAppWidgetHostView extends AppWidgetHostView
 
     private void updateTranslation() {
         super.setTranslationX(mTranslationForReorderBounce.x + mTranslationForReorderPreview.x
-                + mTranslationForCentering.x);
+                + mTranslationForCentering.x + mTranslationForMoveFromCenterAnimation.x);
         super.setTranslationY(mTranslationForReorderBounce.y + mTranslationForReorderPreview.y
-                + mTranslationForCentering.y);
+                + mTranslationForCentering.y + mTranslationForMoveFromCenterAnimation.y);
     }
 
     public void setTranslationForCentering(float x, float y) {
@@ -177,6 +179,11 @@ public abstract class NavigableAppWidgetHostView extends AppWidgetHostView
         updateTranslation();
     }
 
+    public void setTranslationForMoveFromCenterAnimation(float x, float y) {
+        mTranslationForMoveFromCenterAnimation.set(x, y);
+        updateTranslation();
+    }
+
     public void setReorderBounceOffset(float x, float y) {
         mTranslationForReorderBounce.set(x, y);
         updateTranslation();