如何在箭头标签中放置与轴线平行的箭头

Question

 CountDownTimer countDownTimer;  //define countDownTimer 
 countDownTimer.start();   // start countdown timer on some event like on click

  String x="Your code will expire In";
  String y="mins";
  counttimer(); call the method counttimer which includes all the code of timer

  public void counttimer(){
    countDownTimer = new CountDownTimer(30000, 1000) {

        public void onTick(long millisUntilFinished) {
            String text = String.format(Locale.getDefault(), x+" %02d : %02d "+y,
                    TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished) % 60,
                    TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished) % 60);
            phonever_timer.setText(text);   //set timer into textview object
        }

        public void onFinish() {

            phonever_timer.setText("Otp Expired..!");

        }
    };

我在用箭头标记x和y轴时遇到一些困难。我知道如何放置箭头，但不知道如何旋转，以便始终保持平行于轴线