com.facebook.react.views.scroll

Class OnScrollDispatchHelper

java.lang.Object

com.facebook.react.views.scroll.OnScrollDispatchHelper

public class OnScrollDispatchHelper
extends java.lang.Object

Android has a bug where onScrollChanged is called twice per frame with the same params during flings. We hack around that here by trying to detect that duplicate call and not dispatch it. See https://code.google.com/p/android/issues/detail?id=39473

Constructor Summary

Constructors

Constructor and Description
OnScrollDispatchHelper()

Method Summary

Modifier and Type	Method and Description
boolean	onScrollChanged(int x, int y) Call from a ScrollView in onScrollChanged, returns true if this onScrollChanged is legit (not a duplicate) and should be dispatched.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OnScrollDispatchHelper

public OnScrollDispatchHelper()

Method Detail

onScrollChanged

public boolean onScrollChanged(int x,
                               int y)

Call from a ScrollView in onScrollChanged, returns true if this onScrollChanged is legit (not a duplicate) and should be dispatched.