Android - 间隔计时器

Question

有一段时间我无法弄清问题是什么，我不知道在哪里寻找答案，所以我问你们。我想为用户数据输入的间隔创建计时器（训练时间，休息时间，重复次数）。我希望它能像这样工作： 有2个文本视图显示：训练时间的计时器，休息时间的计时器） 第一个运行是训练时间，直到训练输入数据的时间为止。 然后休息时间正在运行。 所有这些都在for循环中工作（直到完成重复次数）。 但是，当我按下启动按钮时，它会冻结。 Graddle没有显示错误。

编辑： 我发现这是while循环的问题（我有三个）。但是这个while循环已经可以运行了，应该可行。我应该创建新的Runnable并使其像线程？我尝试过这个，但它仍然没有用。我不知道怎么能让它发挥作用。

这是我的代码：

import android.os.SystemClock;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.os.Handler;


public class Interval extends AppCompatActivity {
  private TextView timerValue;
  private TextView timerValue2;
  private TextView repetition;
  private long startTime = 0L;
  private Handler customHandler = new Handler();
  long timeV, timeB, train, tbreak;
  long timeInMilliseconds = 0L;
  long timeSwapBuff = 0L;
  long updatedTime = 0L;
  int reps;
  Button resetButton;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_interval);
    train = getIntent().getLongExtra("train", 0);
    tbreak = getIntent().getExtras().getLong("tbreak", 0);
   reps = getIntent().getIntExtra("reps", 0);
    resetButton = (Button) findViewById(R.id.button3);
    resetButton.setEnabled(false);
    timerValue = (TextView) findViewById(R.id.textView4);
    timerValue2 = (TextView) findViewById(R.id.textView5);
    repetition = (TextView) findViewById(R.id.textView6);
    repetition.setText("0/" + reps);


}

public void startButton(View view) {
    startTime = SystemClock.uptimeMillis();
    customHandler.postDelayed(updateTimerThread, 0);
    resetButton.setEnabled(false);

}

public void pauseButton(View view) {
    timeSwapBuff += timeInMilliseconds;
    customHandler.removeCallbacks(updateTimerThread);
    resetButton.setEnabled(true);

}

public void resetButton(View view) {
}
private Runnable updateTimerThread = new Runnable() {

    public void run() {

        timeInMilliseconds = SystemClock.uptimeMillis() - startTime;

        updatedTime = timeSwapBuff + timeInMilliseconds;
        for (int x=1; x<reps; x++) {
            long y = (long)x;
            repetition.setText("" + x + "/" + reps);
            timerValue.setText("0:00:000");
            timerValue2.setText("0:00:000");
            timeV = updatedTime - (y - 1) * (train + tbreak);
            while (timeV <= train) {
                int secs = (int) (timeV / 1000);
                int mins = secs / 60;
                secs = secs % 60;
                int milliseconds = (int) (timeV % 1000);
                timerValue.setText("" + mins + ":"
                        + String.format("%02d", secs) + ":"
                        + String.format("%03d", milliseconds));
            }
            while (train < timeV && timeV <= (train + tbreak)) {
                timerValue.setText("0:00:000");
                timeB = timeV - train;
                int secs = (int) (timeB / 1000);
                int mins = secs / 60;
                secs = secs % 60;
                int milliseconds = (int) (timeB % 1000);
                timerValue2.setText("" + mins + ":"
                        + String.format("%02d", secs) + ":"
                        + String.format("%03d", milliseconds));
            }
            if (x==reps-1){
                timeV = updatedTime - y * (train + tbreak);
                while (timeV <= train) {
                    int secs = (int) (timeV / 1000);
                    int mins = secs / 60;
                    secs = secs % 60;
                    int milliseconds = (int) (timeV % 1000);
                    timerValue.setText("" + mins + ":"
                            + String.format("%02d", secs) + ":"
                            + String.format("%03d", milliseconds));
                }
            }
        }

        customHandler.postDelayed(this, 0);
    }
};

}