Question

我正在尝试创建一个具有计时器的应用程序，我已设法实现该计时器，并且如果未按下停止按钮，则在警报结束后十秒钟开始具有贪睡计时器倒计时。我一直试图解决这个问题已经好几天了，而且我显然做错了什么，但我仍然很新，并且还没有专业知识来解决这个问题。问题出现在我的第一个CountDownTimer的onFinish（）方法中。警报响起后，屏幕将显示“出门时间！”在“if”语句中指定，但我的代码似乎永远不会进入我的代码的“else if”部分。我不知道这是不是因为我错误地写了代码的if / else if / else部分，或者因为我弄乱了计时器来计算出已经过了多少时间。任何帮助是极大的赞赏！谢谢!!!!

公共类CountDown扩展了ActionBarActivity {

private static long shower;
private static long snooze;
private Button stopButton;
private final long interval = 1 * 1000;
public TextView text;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_count_down);
    Bundle extras = getIntent().getExtras();
    shower = extras.getInt("EXTRA_SHOWER");
    snooze = extras.getInt("EXTRA_SNOOZE");
    final long showerMilli = shower * 60 * 1000;
    final long snoozeMilli = snooze * 60 * 1000;

    text = (TextView) findViewById(R.id.timeRemaining);


    new CountDownTimer(showerMilli, interval) {

        public void onTick(long millisUntilFinished) {
            text.setText("" + String.format("%d min, %d sec",
                    TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished),
                    TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished) -
                            TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished))));
        }

        public void onFinish() {
            text.setText("Time's up!");
            MediaPlayer alarm = MediaPlayer.create(CountDown.this, R.raw.alarmsound);
            alarm.start();
            long timeElapsed = SystemClock.currentThreadTimeMillis();
            long alarmTime = timeElapsed-showerMilli;

            if (alarmTime <= 10000) {
                text.setText("Time to get out!");
                timeElapsed=SystemClock.currentThreadTimeMillis();
                alarmTime = timeElapsed-showerMilli;
            }
            else if (alarmTime > 10000) {
                alarm.stop();
                new CountDownTimer(snoozeMilli, interval) {

                    public void onTick(long millisUntilFinished) {
                        text.setText("" + String.format("%d min, %d sec",
                                TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished),
                                TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished) -
                                        TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished))));
                    }


                    public void onFinish() {
                        text.setText("Snooze is done!");
                    }
                }.start();

            }
            else {
                return;
            }

        }


    }.start();


}


@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_count_down, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}

如何确定活动的特定方面的运行时间？

0 个答案: