如何使AlertDialog框出现在应用程序外部？

将行添加为：

public void ShowDialog() {    final alertDialog.Builder alertDialog = new alertDialog.Builder(this);    alertDialog.setTitle("REMINDER!");    alertDialog.setMessage("Turn off alarm by pressing off");    alertDialog.setNegativeButton("Off", new DialogInterface.onClickListener(){        @Override        public void onClick(DialogInterface dialog, int which) { Toast.makeText(getApplicationContext(), "OFF", Toast.LENGTH_SHORT).show();        }    });    alertDialog.show();    // line you have to add    alertDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_TOAST);}

现在检查。