监听ScrollView的滚动

public class MyScrollView extends ScrollView{
private OnScrollListener listener = null;

public MyScrollView(Context context) {
super(context);
}

public MyScrollView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}

public MyScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
}

public void setOnScrollListener(OnScrollListener listener){
this.listener = listener;
}

public interface OnScrollListener{
public void onScrolled();
}

@Override
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
// TODO Auto-generated method stub
super.onScrollChanged(l, t, oldl, oldt);
if(listener != null){
listener.onScrolled();
}
}

}