Flutter - How to show a timer running for 60 seconds inside a Text()

Question

I am building an app that will need to show a timer inside a Text(), with duration of 60 seconds, when the screen opens, the timer starts from 0 to 60 seconds automatically inside a Text().

I tried to use Time Builder lib but I have no ideia how to get the time (minutes and seconds) running to put inside the Text().

class ClockWidget extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
    return TimerBuilder.periodic(Duration(seconds: 60),
      builder: (context) {
        return Text("00:00");
      }
    );
  }

}

Answer 1

I had to use AnimatedBuilder to solve my problem.

  String get timerString {
    Duration duration = controller.duration * controller.value;
    return '${(duration.inSeconds  % 60).toString().padLeft(2, '0')}';
  }

AnimatedBuilder(
              animation: controller,
              builder: (context, child){
                return Text(
                  timerString,
                  style: TextStyle(
                    fontSize: 20,
                    fontWeight: FontWeight.bold,
                  ) ,
                );
              }
          ),