flutter

 import 'package:flutter/material.dart';

void main() {

  runApp(MaterialApp(debugShowCheckedModeBanner: false, home: Hi()));

}

class Hi extends StatelessWidget {

  @override

  Widget build(BuildContext context) {

    return Scaffold(

      appBar: AppBar(

        centerTitle: true,

        title: Text("My first App"),

        backgroundColor: Colors.red[700],

      ),

      body: Column(

        children: [

          Center(

            child: Image.network(

                'https://static.remove.bg/remove-bg-web/2a274ebbb5879d870a69caae33d94388a88e0e35/assets/start_remove-79a4598a05a77ca999df1dcb434160994b6fde2c3e9101984fb1be0f16d0a74e.png'),

          ),

          Image.asset('assets/2.jpg'),

          Center(

            child: Text(

              "hello ninjas",

              style: TextStyle(

                fontSize: 20,

                color: Colors.grey.shade600,

                fontWeight: FontWeight.bold,

                letterSpacing: 2.5,

                fontFamily: "IndieFlower",

              ),

            ),

          ),

        ],

      ),

      floatingActionButton: FloatingActionButton(

        onPressed: () {},

        backgroundColor: Colors.red[900],

        child: Text("Click"),

      ),

    );

  }

}