Dialog In Flutter

Dialog In Flutter :

This flutter tutorial post is dialog in flutter. That is used to logout, exit your application etc.

widget use

  • Center
  • RaisedButton
  • showDialog
  • Container
  • Stack
  • Positioned
  • SizedBox
  • Align
  • FlatButton

Screenshot 1 :

Dialog In Flutter

Screenshot 2 :

Dialog In Flutter


import 'package:flutter/material.dart';
import 'screen/page/ChipListPage.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Tutorial',
      debugShowCheckedModeBanner: false,
      home: MyHomePage(title: 'Dialog in Flutter'),

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);
  final String title;

  _MyHomePageState createState() => _MyHomePageState();

class _MyHomePageState extends State<MyHomePage> {
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(title: Text(widget.title)),
        body: Center(
            child: RaisedButton(
                child: Text('Click'),
                onPressed: () {
                    context: context,
                    builder: (BuildContext context) => CustomDialog(
                      title: "Success",
                      description: "Flutter Tutorial is best provide tutorial.",
                      buttonText: "Okay",

class CustomDialog extends StatelessWidget {
  final String title, description, buttonText;
  final Image image;

    @required this.title,
    @required this.description,
    @required this.buttonText,

  Widget build(BuildContext context) {
    return Dialog(
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(12),
      elevation: 0.0,
      backgroundColor: Colors.transparent,
      child: dialogContent(context),

  dialogContent(BuildContext context) {
    const double padding = 16.0;
    const double avatarRadius = 40.0;

    return Stack(children: <Widget>[
          padding: EdgeInsets.only(
            top: avatarRadius + padding,
            left: padding,
            right: padding,
          margin: EdgeInsets.only(top: avatarRadius),
          decoration: new BoxDecoration(
              color: Colors.white,
              shape: BoxShape.rectangle,
              borderRadius: BorderRadius.circular(padding),
              boxShadow: [
                  color: Colors.black26,
                  blurRadius: 10.0,
                  offset: const Offset(0.0, 10.0),
              Column(mainAxisSize: MainAxisSize.min, // To make the card compact
                  children: <Widget>[
                  style: TextStyle(
                    fontSize: 24.0,
                    fontWeight: FontWeight.w700,
                SizedBox(height: 16.0),
                    textAlign: TextAlign.center,
                    style: TextStyle(
                      fontSize: 16.0,
                SizedBox(height: 24.0),
                    alignment: Alignment.bottomRight,
                    child: FlatButton(
                      onPressed: () {
                        Navigator.of(context).pop(); // To close the dialog
                      child: Text(buttonText),
          left: padding,
          right: padding,
          child: CircleAvatar(
            backgroundColor: Colors.blue.withOpacity(0.9),
            radius: avatarRadius,

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