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main.dart
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main.dart
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import 'dart:async';
import 'package:flutter/material.dart';
import 'package:waiting_dialog/waiting_dialog.dart';
void main() => runApp(MyApp());
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
var _key = GlobalKey<NavigatorState>();
Future _doLongProcess() async {
//simulating
await Future.delayed(Duration(seconds: 5));
}
void _onPressed() {
showWaitingDialog(
context: _key.currentState.overlay.context,
onWaiting: () async => await _doLongProcess(),
strokeWidth: 12.0,
onDone: () {
//your code after waiting
print('is done!');
});
}
Widget button([String caption]) {
ThemeData theme = Theme.of(context);
return RaisedButton(
onPressed: _onPressed,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(8.0),
),
color: theme.primaryColor,
textColor: theme.dialogBackgroundColor,
child: Container(
padding: EdgeInsets.symmetric(horizontal: 32.0, vertical: 16.0),
child: Text('${caption ?? ""}'),
),
);
}
@override
Widget build(BuildContext context) {
return MaterialApp(
navigatorKey: _key,
debugShowCheckedModeBanner: false,
home: Scaffold(
appBar: AppBar(
title: const Text('Waiting dialog example app'),
),
body: Center(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
button('Button with caption'),
button('Another button')
],
),
),
),
);
}
}