* [Android] try to fix js exception: scroll event.xxx is undefined (#…

…2034)
apache · Jan 10, 2019 · 945e93b · 945e93b
1 parent 037c758
commit 945e93b
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/android/sdk/src/main/java/com/taobao/weex/ui/component/helper/ScrollStartEndHelper.java b/android/sdk/src/main/java/com/taobao/weex/ui/component/helper/ScrollStartEndHelper.java
@@ -66,7 +66,10 @@ public void  onScrolled(int x, int y){
             this.y = y;
             if(!hasStart){
                 if(component.getEvents().contains(Constants.Event.SCROLL_START)){
-                    component.fireEvent(Constants.Event.SCROLL_START, getScrollEvent(x, y));
+                    Map<String, Object> event = getScrollEvent(x,y);
+                    if (null !=event && !event.isEmpty()){
+                        component.fireEvent(Constants.Event.SCROLL_START,event);
+                    }
                 }
                 hasStart = true;
             }