GridView 加监听器

//监听器gv_1.setOnItemClickListener(new AdapterView.OnItemClickListener() {    @Override    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

        Toast.makeText(GridViewActivity.this, "点击的图片索引=" + position, Toast.LENGTH_SHORT).show();    }});

//长安删除gv_1.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {    @Override    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {

        //1-删除数据        //从集合里删除长按的数据        liv.remove(position);

        //2-刷新GridView视图,看到效果        //通知适配器，数据源改变        im.notifyDataSetChanged();

        Toast.makeText(GridViewActivity.this, "删除记录索引="+position, Toast.LENGTH_SHORT).show();        return true;//事件已经被消费，不需要再处理    }});