diff --git a/Android/doric/src/main/java/pub/doric/pullable/PullingListener.java b/Android/doric/src/main/java/pub/doric/pullable/PullingListener.java
new file mode 100644
index 00000000..71df7b07
--- /dev/null
+++ b/Android/doric/src/main/java/pub/doric/pullable/PullingListener.java
@@ -0,0 +1,20 @@
+package pub.doric.pullable;
+
+/**
+ * @Description: pub.doric.pullable
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-11-25
+ */
+public interface IPullable {
+
+    void startAnimation();
+
+    void stopAnimation();
+
+    /**
+     * Set the amount of rotation to apply to the progress spinner.
+     *
+     * @param rotation Rotation is from [0..2]
+     */
+    void setProgressRotation(float rotation);
+}
diff --git a/js-framework/src/ui/view.ts b/js-framework/src/ui/view.ts
index baa1595f..70f942b0 100644
--- a/js-framework/src/ui/view.ts
+++ b/js-framework/src/ui/view.ts
@@ -316,6 +316,7 @@ export abstract class Superview extends View {
     toModel() {
         const subviews = []
         for (let v of this.allSubviews()) {
+            v.superview = this
             if (v.isDirty()) {
                 subviews.push(v.toModel())
             }
@@ -341,7 +342,6 @@ export abstract class Group extends Superview {
     }
 
     addChild(view: View) {
-        view.superview = this
         this.children.push(view)
     }
 }