// Android对话框

 AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);//创建对话框

 builder.setTitle("警告"); //设置标题

 builder.setMessage("确定要删除 "+person.getName()+" 吗？"); //设置内容

 builder.setIcon(android.R.drawable.ic_btn_speak_now); //设置图标

 builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {

     @Override

     public void onClick(DialogInterface dialogInterface, int i) {

         list.remove(person); //从集合中删除

         SQLiteDatabase db = helper.getWritableDatabase();

         db.delete("FruitInfo", "fname=?", new String[]{person.getName()}); //从数据库中删除

         notifyDataSetChanged(); //刷新界面

     }

 });//设置按钮及功能实现

 builder.setNegativeButton("No",null); //设置按钮

 builder.show(); //显示对话框