Android 倒计时计时器显示25:0而不是25:00

我遇到的问题在我提供的代码的底部。这是我在论坛上找到的一些代码，它有一个我无法解决的问题。我的计时器总是从

25:0开始，然后转到
24:59
。稍后在显示屏上也会出现这种情况，例如：
23:0
。我试图使秒始终显示两位数字，而不是一个0。
使用将
秒归零，以确保秒始终是两位数字：

public class MainActivity extends AppCompatActivity {

  @Bind(R.id.timerText)
  TextView timerText;
  @Bind(R.id.pauseButton)
  ImageButton pauseButton;
  @Bind(R.id.restartButton)
  ImageButton restartButton;
  @Bind(R.id.startButton)
  ImageButton startButton;

  private CountDownTimer mCounter;

  long millisecondsLeft;

  boolean isFirstLaunch = true;
  boolean isPaused = false;
  boolean isRunning = false;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ButterKnife.bind(this);

    startButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (isFirstLaunch) {
                pauseButton.setVisibility(View.VISIBLE);
                restartButton.setVisibility(View.VISIBLE);
                startButton.setVisibility(View.GONE);
                isFirstLaunch = false;
                setTheTimer(60 * 25 * 1000);
            } else {
                isRunning = true;
                isPaused = false;
                changeVisibility();
                setTheTimer(millisecondsLeft);
            }
        }
    });

    pauseButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mCounter.cancel();
            mCounter = null;

            isRunning = false;
            isPaused = true;
            changeVisibility();
        }
    });

    restartButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            restart();
        }
    });
  }

  public void changeVisibility () {

    if (isPaused) {
        startButton.setVisibility(View.VISIBLE);
        pauseButton.setVisibility(View.GONE);
    }
    if (isRunning) {
        pauseButton.setVisibility(View.VISIBLE);
        startButton.setVisibility(View.GONE);
    }
  }

  public void restart () {
    if (mCounter != null) {
        mCounter.cancel();
        mCounter = null;
        isRunning = true;
        isPaused = false;
        changeVisibility();
        setTheTimer(60 * 25 * 1000);
    } else {
        isRunning = true;
        isPaused = false;
        changeVisibility();
        setTheTimer(60 * 25 * 1000);
    }
  }


  private void setTheTimer(long value) {

    if (mCounter == null) {

        mCounter = new CountDownTimer(value, 1000) {

            @Override
            public void onTick(long millisUntilFinished) {

                long minutes = (millisUntilFinished / 1000) / 60;
                int seconds = (int) ((millisUntilFinished / 1000) % 60);
                millisecondsLeft = millisUntilFinished;


                timerText.setText(minutes + ":" + seconds);
            }

            @Override
            public void onFinish() {
                timerText.setText("Done!");
            }
        };
        mCounter.start();
      }
    }
}

输出将为2.00

这更易于嵌入。
这可以通过以下方式实现：

或作为替代用途：

你在使用数字。但是你需要字符串
00
不是一个数字；因此，翻译成字符串的
0
-是
“0”
，而不是
“00”
。如何在代码中实现DecimalFormat？我不知道该怎么做，这个答案可能会有所帮助。
timerText.setText(minutes + ":" + String.format("%02d", seconds));

NumberFormat formatter = new DecimalFormat("#0.00");     

System.out.println(formatter.format(2.0));

// modified from your above to highlight what you need to do
NumberFormat f = new DecimalFormat("00");
int seconds = (int) ((millisUntilFinished / 1000) % 60);
timerText.setText(minutes + ":" + f.format(seconds)); // formatter used here

// modified from your above to highlight what you need to do
String format = "%02d"; // two digits
timerText.setText(minutes + ":" + String.format(format, time)); // formatter used here