Want to show Circular Progress Dialog in flutter? Use the following example code to show circular progress dialog in your flutter app.
Here is a quick example:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | class ProgressHUD extends StatelessWidget { final Widget child; final bool inAsyncCall; final double opacity; final Color color; final Animation<Color> valueColor; ProgressHUD({ Key key, @required this.child, @required this.inAsyncCall, this.opacity = 0.3, this.color = Colors.grey, this.valueColor, }) : super(key: key); @override Widget build(BuildContext context) { List<Widget> widgetList = new List<Widget>(); widgetList.add(child); if (inAsyncCall) { final modal = new Stack( children: [ new Opacity( opacity: opacity, child: ModalBarrier(dismissible: false, color: color), ), new Center( child: new CircularProgressIndicator( valueColor: valueColor, ), ), ], ); widgetList.add(modal); } return Stack( children: widgetList, ); } } |
Use it
1 2 3 4 5 | body: ProgressHUD( child: screen, inAsyncCall: _isLoading, opacity: 0.0, ), |
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