Java – countdowntimer cancel() does not work

I am new to Android development and try to make small games

Any ideas?

Thank you for your answer!

CountDownTimer cdt = new CountDownTimer(120000,1000) {

            public void onTick(long millisUntilFinished) {
                maxTime = (int) (millisUntilFinished / 1000);
                timer.setText(String.valueOf(maxTime));
            }

            public void onFinish() {

            }
        };

        if (startTimer == true) {
            cdt.start();
        } else {
            cdt.cancel();
        }

Solution

I have to make a hypothesis here, because the code doesn't show too much! Obviously, you use countdowntimer as the internal class in oncreate, so the timer will be triggered when starttimer = = true, and the object will be created anyway! I think it's best to create a global instance of countdowntimer

And write code in this way:

if(startTimer == true) {
    cdt = new CountDownTimer(120000,1000) {
        public void onTick(long millisUntilFinished) {
            maxTime = (int) (millisUntilFinished / 1000);
            timer.setText(String.valueOf(maxTime));
        }

        public void onFinish() {

        }
    }.start(); //start the countdowntimer
}
else{
    cdt.cancel();
}