Android开发时,最常用的控件之一就是ListView了,而使用ListView的同时,必然需要对它设置监听器,常用的监听器有这么几个
1.OnItemClickListener
2.OnTouchListener
3.OnScrollListener
1监听器在点击该项目的子项时触发,2监听器在触碰到ListView时触发,3监听器在ListView滚动时触发,
下面几个例子分别表述了具体处理的办法
class ItemClickEvent implements OnItemClickListener { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { // TODO Auto-generated method stub // arg1.setVisibility(View.GONE); // 对子项处理的办法 // BtnCheck(0); System.out.println(arg2); } } class ItemTouchEvent implements OnTouchListener { @Override public boolean onTouch(View v, MotionEvent event) { // TODO Auto-generated method stub // System.out.println("触摸.."); if (event.getAction() == MotionEvent.ACTION_MOVE) { // System.out.println("MOVE"); //接触到ListView移动时 BtnCheck(0); } else if (event.getAction() == MotionEvent.ACTION_UP) { // System.out.println("up"); //离开ListView时 BtnCheck(currentPage); } else if (event.getAction() == MotionEvent.ACTION_DOWN) { // System.out.println("down"); //接触到ListView时 BtnCheck(0); } return false; } } class LvScrollEvent implements OnScrollListener { @Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { // TODO Auto-generated method stub } @Override public void onScrollStateChanged(AbsListView view, int scrollState) { // TODO Auto-generated method stub switch (scrollState) { case OnScrollListener.SCROLL_STATE_IDLE: // BtnCheck(currentPage); // mBusy = false; System.out.println("停止..."); break; case OnScrollListener.SCROLL_STATE_TOUCH_SCROLL: BtnCheck(0); // mBusy = true; System.out.println("正在滑动..."); break; case OnScrollListener.SCROLL_STATE_FLING: BtnCheck(0); // mBusy = true; System.out.println("开始滚动..."); break; } } }
时间: 2024-10-07 01:46:53