Android中监听ScrollView滑动停止和滑动到底部
1.监听ScrollView滑动停止:
/********************监听ScrollView滑动停止*****************************/ scrollView.setOnTouchListener(new OnTouchListener() { private int lastY = 0; private int touchEventId = -9983761; Handler handler = new Handler() { @Override public void handleMessage(Message msg) { super.handleMessage(msg); View scroller = (View) msg.obj; if (msg.what == touchEventId) { if (lastY == scroller.getScrollY()) { handleStop(scroller); } else { handler.sendMessageDelayed(handler.obtainMessage(touchEventId, scroller), 5); lastY = scroller.getScrollY(); } } } }; public boolean onTouch(View v, MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_UP) { handler.sendMessageDelayed(handler.obtainMessage(touchEventId, v), 5); } return false; } private void handleStop(Object view) { ScrollView scroller = (ScrollView) view; scrollY = scroller.getScrollY(); } }); /***********************************************************/
2.监听ScrollView滑动到底部:
package com.example.webviewdemo; import android.content.Context; import android.util.AttributeSet; import android.widget.ScrollView; public class ScrollBottomScrollView extends ScrollView { private ScrollBottomListener scrollBottomListener; public ScrollBottomScrollView(Context context) { super(context); } public ScrollBottomScrollView(Context context, AttributeSet attrs) { super(context, attrs); } public ScrollBottomScrollView(Context context, AttributeSet attrs,int defStyle) { super(context, attrs, defStyle); } @Override protected void onScrollChanged(int l, int t, int oldl, int oldt){ if(t + getHeight() >= computeVerticalScrollRange()){ //ScrollView滑动到底部了 scrollBottomListener.scrollBottom(); } } public void setScrollBottomListener(ScrollBottomListener scrollBottomListener){ this.scrollBottomListener = scrollBottomListener; } public interface ScrollBottomListener{ public void scrollBottom(); } }
重写ScrollView的onScrollChanged的方法。