flutter showDialog actopms

Future<void> _showMyDialog() async { return showDialog<void>( context: context, barrierDismissible: false, // user must tap button! builder: (BuildContext context) { return AlertDialog( title: Text('AlertDialog Title'), content: SingleChildScrollView( child: ListBody( children: <Widget>[ Text('This is a demo alert dialog.'), Text('Would you like to approve of this message?'), ], ), ), actions: <Widget>[ TextButton( child: Text('Approve'), onPressed: () { Navigator.of(context).pop(); }, ), ], ); }, ); }

flutter show dialog on start

import 'dart:async';
  import 'package:flutter/material.dart';

  void main() {
    runApp(new MyApp());
  }

  class MyApp extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
      return MaterialApp(
          title: 'Trial',
          home: Scaffold(
              appBar: AppBar(title: Text('List scroll')), body: new MyHome()));
    }
  }

  class MyHome extends StatelessWidget { // Wrapper Widget
    @override
    Widget build(BuildContext context) {
      Future.delayed(Duration.zero, () => showAlert(context));
      return Container(
        child: Text("Hello world"),
      );
    }

    void showAlert(BuildContext context) {
      showDialog(
          context: context,
          builder: (context) => AlertDialog(
                content: Text("hi"),
              ));
    }
  }

Posted by: Guest on December-23-2020

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