How To Create Alert Dialog Box With Icon In Flutter App

AlertDialog(
  title: Row(
      children:[
        IconButton(icon: Icon(Icons.notifications_none,size: 25,color: Colors.indigo,),onPressed: () {},),
        Text('  Alert Dialog.',style: TextStyle(color:Colors.indigo),)
      ]
  ),
  content: Text("Are You Sure Want To Proceed?"),
  actions: <Widget>[
    FlatButton(
      child: Text("YES",style: TextStyle(color:Colors.indigo),),
      onPressed: () {
        //Put your code here which you want to execute on Yes button click.
        Navigator.of(context).pop();
      },
    ),

    FlatButton(
      child: Text("CANCEL",style: TextStyle(color:Colors.red),),
      onPressed: () {
        //Put your code here which you want to execute on Cancel button click.
        Navigator.of(context).pop();
      },
    ),
  ],
);

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
        home: Scaffold(
          appBar: AppBar(
            centerTitle: true,
            backgroundColor: Colors.indigo,
            leading: Icon(Icons.menu),
            title: Text("Alert With Icon"),
            actions: <Widget>[
              IconButton(icon: Icon(Icons.search),onPressed: () {},),
            ],
          ),
            body: Center(
                child: AlertWithIcon()
            )
        )
    );
  }
}

class AlertWithIcon extends StatefulWidget {

  AlertWithIconWidget createState() => AlertWithIconWidget();

}

class AlertWithIconWidget extends State {

  showAlert(BuildContext context) {
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return AlertDialog(
          title: Row(
              children:[
                IconButton(icon: Icon(Icons.notifications_none,size: 25,color: Colors.indigo,),onPressed: () {},),
                Text('  Alert Dialog.',style: TextStyle(color:Colors.indigo),)
              ]
          ),
          content: Text("Are You Sure Want To Proceed?"),
          actions: <Widget>[
            FlatButton(
              child: Text("YES",style: TextStyle(color:Colors.indigo),),
              onPressed: () {
                //Put your code here which you want to execute on Yes button click.
                Navigator.of(context).pop();
              },
            ),

            FlatButton(
              child: Text("CANCEL",style: TextStyle(color:Colors.red),),
              onPressed: () {
                //Put your code here which you want to execute on Cancel button click.
                Navigator.of(context).pop();
              },
            ),
          ],
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child:
        RaisedButton(
          onPressed: () => showAlert(context),
          child: Text('Click Here To Show Alert Dialog Box with ICON'),
          textColor: Colors.white,
          color: Colors.indigo,
          padding: EdgeInsets.fromLTRB(12, 12, 12, 12),
        ),
      ),
    );
  }
}