Change Timer Schedule AtFixedRate

Question

I have a TextView for frequently updating the time, which works fine, but the problem is that I want to change the schedule time for different conditions, but I cannot change the schedule time. It is still installed at the initial stage.

private Long mPeriod = Long.parseLong("8000"); public void startTimer() { Logger.i("startTimer", "startTimer"); stopTimer(); mTimer = new Timer(); mTimerTask = new TimerTask() { @Override public void run() { // postInvalidate(); Logger.i("timer", "timer"); Thread th = new Thread(new Runnable() { @Override public void run() { Logger.i("thread", "thread"); Long ll = System.currentTimeMillis(); mRelativeTime = DateUtils.getRelativeTimeSpanString( Long.parseLong(mText + ""), ll, 0); Long diff = ll - Long.parseLong(mText + ""); // long diffSeconds = diff / 1000 % 60; long diffMinutes = diff / (60 * 1000) % 60; long diffHours = diff / (60 * 60 * 1000) % 60; Logger.d("diffMinutes", diffMinutes + ""); Logger.d("diffHours", diffHours + ""); if (diffMinutes == 0 && diffHours == 0) { Logger.i("5000", "5000"); mPeriod = Long.parseLong("5000"); } else if (diffMinutes < 60 && diffMinutes != 0 && diffHours == 0) { Logger.i("30000", "30000"); mPeriod = Long.parseLong("30000"); } else if (diffHours > 0) { Logger.i("600000", "600000"); mPeriod = Long.parseLong("600000"); } **// This line is not working... mTimer.scheduleAtFixedRate(mTimerTask, 0, mPeriod);** // Change text handler.sendEmptyMessage(0); } }); th.run(); } }; mTimer.scheduleAtFixedRate(mTimerTask, 0, mPeriod); } public void stopTimer() { if (mTimer != null) { mTimer.cancel(); mTimer = null; } } 

Answer 1

I solved my problem. Just check the previous delay, below is the solution.

 private Long mPeriod = Long.parseLong("8000"); public void startTimer() { Logger.i("startTimer", "startTimer"); stopTimer(); mTimer = new Timer(); mTimerTask = new TimerTask() { @Override public void run() { // postInvalidate(); Logger.i("timer", "timer"); Thread th = new Thread(new Runnable() { @Override public void run() { Logger.i("thread", "thread"); Long ll = System.currentTimeMillis(); mRelativeTime = DateUtils.getRelativeTimeSpanString( Long.parseLong(mText + ""), ll, 0); Long diff = ll - Long.parseLong(mText + ""); // long diffSeconds = diff / 1000 % 60; long diffMinutes = diff / (60 * 1000) % 60; long diffHours = diff / (60 * 60 * 1000) % 60; Logger.d("diffMinutes", diffMinutes + ""); Logger.d("diffHours", diffHours + ""); if (diffMinutes == 0 && diffHours == 0 && mTimerTask != 5000) { Logger.i("5000", "5000"); mPeriod = Long.parseLong("5000"); startTimer(); } else if (diffMinutes < 60 && diffMinutes != 0 && diffHours == 0 && mTimerTask != 30000) { Logger.i("30000", "30000"); mPeriod = Long.parseLong("30000"); startTimer(); } else if (diffHours > 0 && mTimerTask != 600000) { Logger.i("600000", "600000"); mPeriod = Long.parseLong("600000"); startTimer(); } // Change text handler.sendEmptyMessage(0); } }); th.run(); } }; mTimer.scheduleAtFixedRate(mTimerTask, 0, mPeriod); } public void stopTimer() { if (mTimer != null) { mTimer.cancel(); mTimer = null; } } 

Answer 2

You must create your own CustomTimerTask class, which extends from TimerTask. After that, you can use mCustomTimerTask (a CustomTimerTask object) to reschedule your time. Here is an answer that is possibly duplicated.