com.nostra13.universalimageloader.core.listener

Class PauseOnScrollListener

java.lang.Object

com.nostra13.universalimageloader.core.listener.PauseOnScrollListener

All Implemented Interfaces:

android.widget.AbsListView.OnScrollListener

public class PauseOnScrollListener
extends java.lang.Object
implements android.widget.AbsListView.OnScrollListener

Listener-helper for list views (ListView, GridView) which can pause ImageLoader's tasks while list view is scrolling (touch scrolling and/or fling). It prevents redundant loadings.
Set it to your list view's setOnScrollListener(...).
This listener can wrap your custom listener.

Since:

1.7.0

Field Summary

Fields inherited from interface android.widget.AbsListView.OnScrollListener

SCROLL_STATE_FLING, SCROLL_STATE_IDLE, SCROLL_STATE_TOUCH_SCROLL

Constructor Summary

Constructors

Constructor and Description
PauseOnScrollListener(ImageLoader imageLoader, boolean pauseOnScroll, boolean pauseOnFling) Constructor
PauseOnScrollListener(ImageLoader imageLoader, boolean pauseOnScroll, boolean pauseOnFling, android.widget.AbsListView.OnScrollListener customListener) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
void	onScroll(android.widget.AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount)
void	onScrollStateChanged(android.widget.AbsListView view, int scrollState)

Methods inherited from class java.lang.Object

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

Constructor Detail

PauseOnScrollListener

public PauseOnScrollListener(ImageLoader imageLoader,
                     boolean pauseOnScroll,
                     boolean pauseOnFling)

Constructor

Parameters:

imageLoader - ImageLoader instance for controlling

pauseOnScroll - Whether pause ImageLoader during touch scrolling

pauseOnFling - Whether pause ImageLoader during fling

PauseOnScrollListener

public PauseOnScrollListener(ImageLoader imageLoader,
                     boolean pauseOnScroll,
                     boolean pauseOnFling,
                     android.widget.AbsListView.OnScrollListener customListener)

Constructor

Parameters:

imageLoader - ImageLoader instance for controlling

pauseOnScroll - Whether pause ImageLoader during touch scrolling

pauseOnFling - Whether pause ImageLoader during fling

customListener - Your custom AbsListView.OnScrollListener for list view which also will be get scroll events

Method Detail

onScrollStateChanged

public void onScrollStateChanged(android.widget.AbsListView view,
                        int scrollState)

Specified by:

onScrollStateChanged in interface android.widget.AbsListView.OnScrollListener

onScroll

public void onScroll(android.widget.AbsListView view,
            int firstVisibleItem,
            int visibleItemCount,
            int totalItemCount)

Specified by:

onScroll in interface android.widget.AbsListView.OnScrollListener