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A flutter countdown timer. [10 days 5:30:46] ⬇⬇⬇⬇

CountdownTimer #

A simple flutter countdown timer widget.Count down through the end timestamp,Trigger an event after the countdown ends.

Installing #

Add this to your package's pubspec.yaml file:

dependencies:
  flutter_countdown_timer: ^4.0.0

Install it

$ flutter pub get

CountdownTimer #

name description
endWidget The widget displayed at the end of the countdown
widgetBuilder Widget Function(BuildContext context, CurrentRemainingTime time)
controller CountdownTimer start and dispose controller
endTime Countdown end time stamp
onEnd Countdown end event
textStyle Text color

CountdownTimerController #

name description
endTime Countdown end time stamp
onEnd Countdown end event

Example #

Simple to use #

int endTime = DateTime.now().millisecondsSinceEpoch + 1000 * 30;

...
CountdownTimer(
  endTime: endTime,
),

Execute event at end. #

int endTime = DateTime.now().millisecondsSinceEpoch + 1000 * 30;

void onEnd() {
  print('onEnd');
}

...
CountdownTimer(
  endTime: endTime,
  onEnd: onEnd,
),

Use the controller to end the countdown early. #

  CountdownTimerController controller;
  int endTime = DateTime.now().millisecondsSinceEpoch + 1000 * 30;

  @override
  void initState() {
    super.initState();
    controller = CountdownTimerController(endTime: endTime, onEnd: onEnd);
  }

  void onEnd() {
    print('onEnd');
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
          CountdownTimer(
              controller: controller,
              onEnd: onEnd,
              endTime: endTime,
          ),
      ),
      floatingActionButton: FloatingActionButton(
        child: Icon(Icons.stop),
        onPressed: () {
          onEnd();
          controller.disposeTimer();
        },
      ),
    );
  }

  @override
  void dispose() {
    controller.dispose();
    super.dispose();
  }

Custom style. #

  int endTime = DateTime.now().millisecondsSinceEpoch + 1000 * 30;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
          CountdownTimer(
            endTime: endTime,
            widgetBuilder: (_, CurrentRemainingTime time) {
              if (time == null) {
                return Text('Game over');
              }
              return Text(
                  'days: [ ${time.days} ], hours: [ ${time.hours} ], min: [ ${time.min} ], sec: [ ${time.sec} ]');
            },
          ),
      ),
    );
  }

In ListView.builder #

class ListViewPage extends StatefulWidget {
  static final String rName = "ListView";

  @override
  _ListViewPageState createState() => _ListViewPageState();
}

class _ListViewPageState extends State<ListViewPage> {
  int endTime = DateTime.now().millisecondsSinceEpoch + 1000 * 60 * 60;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: ListView.builder(
        itemCount: 200,
        itemBuilder: (context, index) {
          if (index == 0) {
            return _CountdownDemo(endTime);
          } else {
            return Container(
              height: 200,
              color: Colors.blue,
              margin: EdgeInsets.all(10),
            );
          }
        },
      ),
    );
  }
}

class _CountdownDemo extends StatefulWidget {
  final int endTime;

  _CountdownDemo(this.endTime);

  @override
  __CountdownDemoState createState() => __CountdownDemoState();
}

class __CountdownDemoState extends State<_CountdownDemo> {
  CountdownTimerController countdownTimerController;

  @override
  Widget build(BuildContext context) {
    return CountdownTimer(
      controller: countdownTimerController,
    );
  }

  @override
  void initState() {
    super.initState();
    countdownTimerController =
        CountdownTimerController(endTime: widget.endTime);
  }
}

Countdown #

CountdownController countdownController = CountdownController(duration: Duration(minutes: 1));


Scaffold(
      body: Center(
        child: Countdown(countdownController: countdownController),
      ),
      floatingActionButton: FloatingActionButton(
        child: Icon(countdownController.isRunning ? Icons.stop : Icons.play_arrow),
        onPressed: () {
          if(!countdownController.isRunning) {
          ///start
            countdownController.start();
          } else {
          ///pause
            countdownController.stop();
          }
          setState(() {
            ///change icon
          });
        },
      ),
    )

countdown.gif

000.gif

./example_2.png /example_0.png

example_1.png 000.gif

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A flutter countdown timer. [10 days 5:30:46] ⬇⬇⬇⬇

Repository (GitHub)
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License

unknown (license)

Dependencies

flutter

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