android 单击弹出Context menu

Context menu默认要long click才会触发。 以下方法使单击也能触发

public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo)

{
//添加菜单项
menu.add(Menu.NONE, ITEM_MENU_PREVIEW, 0,"查看");
menu.add(Menu.NONE, ITEM_MENU_SAVE2ALBUM, 0,"保存到相册");
menu.add(Menu.NONE, ITEM_MENU_DELETE, 0,"删除");
menu.add(Menu.NONE, ITEM_MENU_CANCEL, 0,"取消");
}



   //选中菜单Item后触发
   public boolean onContextItemSelected(MenuItem item){
    //关键代码在这里
       AdapterView.AdapterContextMenuInfo menuInfo;
       menuInfo =(AdapterView.AdapterContextMenuInfo)item.getMenuInfo();
       int indexListView = menuInfo.position; //这个为选中的ListView中的条目ID
       switch(item.getItemId())
       {
case ITEM_MENU_PREVIEW:
break;
case ITEM_MENU_SAVE2ALBUM:
break;
case ITEM_MENU_DELETE:
break;
case ITEM_MENU_CANCEL:
break;
       }
       
      return true; 
       
    //return super.onContextItemSelected(item); 
   }



@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {

   view.showContextMenu();

}