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Flutter Marquee Text Widget
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import 'package:flutter/animation.dart'; | |
import 'package:flutter/material.dart'; | |
class AutoScrollText extends StatefulWidget { | |
final double height; | |
final List<Widget> items; | |
AutoScrollText({this.height = 24.0, this.items}); | |
@override | |
State<StatefulWidget> createState() => new _AutoScrollTextState(); | |
} | |
class _AutoScrollTextState extends State<AutoScrollText> | |
with SingleTickerProviderStateMixin { | |
ScrollController scrollCtrl = new ScrollController(); | |
AnimationController animateCtrl; | |
@override | |
void dispose() { | |
animateCtrl.dispose(); | |
super.dispose(); | |
} | |
@override | |
initState() { | |
double offset = 0.0; | |
super.initState(); | |
animateCtrl = | |
new AnimationController(vsync: this, duration: Duration(seconds: 3)) | |
..addListener(() { | |
if (animateCtrl.isCompleted) animateCtrl.repeat(); | |
offset += 1.0; | |
if (offset - 1 > scrollCtrl.offset) { | |
offset = 0.0; | |
} | |
setState(() { | |
scrollCtrl.jumpTo(offset); | |
}); | |
}); | |
animateCtrl.forward(); | |
} | |
@override | |
Widget build(BuildContext context) { | |
return Container( | |
width: 200.0, | |
color: Colors.blueGrey.shade800, | |
height: widget.height, | |
padding: EdgeInsets.all(4.0), | |
child: Center( | |
child: ListView( | |
controller: scrollCtrl, | |
children: widget.items, | |
scrollDirection: Axis.horizontal, | |
), | |
), | |
); | |
} | |
} |
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