new AlertDialog.Builder(act).setTitle("提示")
.setMessage("确定退出").setPositiveButton("确定", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
int pid=android.os.Process.myPid();
android.os.Process.killProcess(pid);
}
}).setNegativeButton("取消", null).create().show();
menuDialog.dismiss();
break;\