android – AlertDialog setButton已被弃用

我在Eclipse Android项目中使用了这段代码

alertDialog.setButton("OK", new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {

        }
});

但Eclipse说：

This method was deprecated in API level 3. Use setButton(int,
CharSequence, android.content.DialogInterface.OnClickListener) with
BUTTON_POSITIVE

解决方法:

AlertDialog alert = new AlertDialog.Builder(this).create();
            alert.setTitle("Error");
            alert.setMessage("Sorry, your device doesn't support flash light!");
            alert.setButton(Dialog.BUTTON_POSITIVE,"OK",new DialogInterface.OnClickListener(){

                @Override
                public void onClick(DialogInterface dialog, int which) {
                    finish();
                }
            });

alert.show();