cancel abstract method Null safety

void cancel()

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

void cancel();