cancel method Null safety

  1. @override
void cancel()
override

Cancels the timer.

Once a Timer has been canceled, the callback function will not be called by the timer. Calling cancel more than once on a Timer is allowed, and will have no further effect.

Example:

final timer =
    Timer(const Duration(seconds: 5), () => print('Timer finished'));
// Cancel timer, callback never called.
timer.cancel();

Implementation

@override
void cancel() => _async._timers.remove(this);