I have created a countdown timer that will countdown from a user inputted duration, in minutes.
The countdown timer technically works, but only the minutes are being shown counting down. The seconds remain at :00 the entire time.
How can I get the seconds to also display as part of the countdown timer?
Here is the relevant code, excerpted from a longer file. I can include more if needed.
The individual pieces of code are broken down as follows:
First, I have a class that actually displays the timer text and allows it to be styled:
class Countdown extends AnimatedWidget {
Countdown({ Key key, this.animation }) : super(key: key, listenable: animation);
Animation<int> animation;
@override
build(BuildContext context){
Duration clockTimer = Duration(seconds: animation.value*60);
String timerText = '${clockTimer.inMinutes.remainder(60).toString()}:${(clockTimer.inSeconds.remainder(60) % 60).toString().padLeft(2, '0')}';
return Text(
"$timerText",
style: TextStyle(
fontSize: 110,
color: Theme.of(context).primaryColor,
),
);
}
}
I have an animation controller as follows:
AnimationController _controller;
@override
void dispose(){
_controller.dispose();
super.dispose();
}
void initState() {
super.initState();
@override
_controller = AnimationController(
vsync: this,
duration: Duration(minutes: gameData.levelClock) // gameData.levelClock is a user entered number elsewhere in the applciation
);
}
And finally here is the part of the code that calls the Countdown widget:
Countdown(
animation: StepTween(
begin: gameData.levelClock, // THIS IS A USER ENTERED NUMBER
end: 0,
).animate(_controller),
)
Thank you for any help that can be offered.
You can copy paste run full code below
Your duration of AnimationController need to use seconds
code snippet
_controller = AnimationController(
vsync: this,
duration: Duration(
seconds:
levelClock) // gameData.levelClock is a user entered number elsewhere in the applciation
);
working demo
full code
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> with TickerProviderStateMixin {
int _counter = 0;
AnimationController _controller;
int levelClock = 180;
void _incrementCounter() {
setState(() {
_counter++;
});
}
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
void initState() {
super.initState();
_controller = AnimationController(
vsync: this,
duration: Duration(
seconds:
levelClock) // gameData.levelClock is a user entered number elsewhere in the applciation
);
_controller.forward();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Countdown(
animation: StepTween(
begin: levelClock, // THIS IS A USER ENTERED NUMBER
end: 0,
).animate(_controller),
),
Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.display1,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: Icon(Icons.add),
),
);
}
}
class Countdown extends AnimatedWidget {
Countdown({Key key, this.animation}) : super(key: key, listenable: animation);
Animation<int> animation;
@override
build(BuildContext context) {
Duration clockTimer = Duration(seconds: animation.value);
String timerText =
'${clockTimer.inMinutes.remainder(60).toString()}:${clockTimer.inSeconds.remainder(60).toString().padLeft(2, '0')}';
print('animation.value ${animation.value} ');
print('inMinutes ${clockTimer.inMinutes.toString()}');
print('inSeconds ${clockTimer.inSeconds.toString()}');
print('inSeconds.remainder ${clockTimer.inSeconds.remainder(60).toString()}');
return Text(
"$timerText",
style: TextStyle(
fontSize: 110,
color: Theme.of(context).primaryColor,
),
);
}
}