Splash Screen

 import "package:flutter/material.dart";

import "package:practice/IntroPage.dart";
import "package:practice/splash_screen.dart";

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "Hello",
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.deepPurple,
      ),
      home: const SplashScreen(),
    );
  }
}

class FlutterApp extends StatelessWidget {
  var nameFromHome;

  FlutterApp(this.nameFromHome, {super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      drawer: Drawer(
        child: ListView(
          padding: EdgeInsets.zero,
          children: [
            const UserAccountsDrawerHeader(
              accountName: Text("John"),
              accountEmail: Text("John4215@google.com"),
              currentAccountPicture: Icon(
                Icons.account_circle,
                size: 85,
              ),
            ),
            ListTile(
              leading: const Icon(
                Icons.message,
                color: Colors.black,
              ),
              title: const Text("message"),
              onTap: () {
                Navigator.pop(context);
              },
            ),
            const Divider(
              thickness: 1,
              color: Colors.black,
            ),
            ListTile(
              leading: const Icon(
                Icons.account_circle,
                color: Colors.black,
              ),
              title: const Text("profile"),
              onTap: () {
                Navigator.pop(context);
              },
            ),
            const Divider(thickness: 1, color: Colors.black),
            ListTile(
              leading: const Icon(
                Icons.settings,
                color: Colors.black,
              ),
              title: const Text("Settings"),
              onTap: () {
                Navigator.pop(context);
              },
            ),
            const Divider(
              thickness: 1,
              color: Colors.black,
            ),
            ListTile(
              leading: const Icon(Icons.help_outline, color: Colors.black),
              title: const Text("Help & feedback"),
              onTap: () {
                Navigator.pop(context);
              },
            ),
            const Divider(
              thickness: 1,
              color: Colors.black,
            ),
            ListTile(
              leading: const Icon(
                Icons.restore_from_trash,
                color: Colors.black,
              ),
              title: const Text("Trash"),
              onTap: () {
                Navigator.pop(context);
              },
            ),
          ],
        ),
      ),
      //endDrawer: const Drawer(),
      appBar: AppBar(
        title: const Text(
          "Switching One to another Screen",
          style: TextStyle(fontWeight: FontWeight.bold),
        ),
        centerTitle: true,
        backgroundColor: Colors.grey,
      ),
      body: Container(
        color: Colors.amber.shade300,
        child: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              const Text(
                "Page No : 2",
                style: TextStyle(
                  fontSize: 25,
                  fontWeight: FontWeight.bold,
                ),
              ),
              const SizedBox(height: 40.0),
              const Text(
                "Hello World",
                style: TextStyle(
                  fontSize: 34,
                ),
              ),
              const SizedBox(height: 40.0),
              Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  Text(
                    "Welcome, $nameFromHome",
                    style: const TextStyle(
                      fontSize: 34,
                      color: Colors.teal,
                    ),
                  ),
                  const SizedBox(height: 40.0),
                  ElevatedButton(
                    onPressed: () {
                      Navigator.pop(
                        /*Top of the stack will pop*/
                        context,
                        MaterialPageRoute(
                          builder: (context) {
                            return IntroPage();
                          },
                        ),
                      );
                    },
                    style: ElevatedButton.styleFrom(
                      backgroundColor: Colors.grey,
                      fixedSize: const Size(350.0, 50.0),
                    ),
                    child: const Text(
                      "Back",
                      style: TextStyle(
                          fontWeight: FontWeight.bold,
                          fontSize: 20.0,
                          color: Colors.white),
                    ),
                  ), /*The MaterialPageRoute object is a subclass of Route
                  that specifies the transition animations for Material Design*/
                ],
              ),
            ],
          ),
        ),
      ),
      //Text("Hello World"),
    );
  }
}

import "dart:async";
import "package:flutter/material.dart";
import "package:practice/IntroPage.dart";

class SplashScreen extends StatefulWidget {
  const SplashScreen({super.key});

  @override
  State<SplashScreen> createState() {
    return SplashScreenState();
  }
}

class SplashScreenState extends State<SplashScreen> {
  @override
  void initState() {
    super.initState();

    Timer(
      const Duration(seconds: 2),
      () {
        Navigator.pushReplacement(
          context,
          MaterialPageRoute(
            builder: (context) {
              return IntroPage();
            },
          ),
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Container(
        color: Colors.blue,
        child: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              const Text(
                "Flutter Application",
                style: TextStyle(
                  fontSize: 34,
                  fontWeight: FontWeight.w700,
                  color: Colors.white,
                ),
              ),
              Image.asset("assets/images/flutter.png"),
            ],
          ),
        ),
      ),
    );
  }
}

import "package:flutter/material.dart";
import "package:practice/switching_screen.dart";

class IntroPage extends StatelessWidget {
  var nameController = TextEditingController();

  IntroPage({super.key});

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () {
        FocusManager.instance.primaryFocus?.unfocus();
      },
      child: Scaffold(
        endDrawer: const Drawer(),
        appBar: AppBar(
          title: const Text(
            "Intro -> Page 1",
            style: TextStyle(fontWeight: FontWeight.bold),
          ),
          centerTitle: true,
          backgroundColor: Colors.grey,
        ),
        body: Center(
          child: SizedBox(
            width: 300.0,
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                const Text(
                  "Page No : 1",
                  style: TextStyle(
                    fontSize: 25,
                    fontWeight: FontWeight.bold,
                  ),
                ),
                const SizedBox(height: 40.0),
                const Text(
                  "Welcome",
                  style: TextStyle(
                    fontSize: 34,
                    fontWeight: FontWeight.bold,
                  ),
                ),
                const SizedBox(
                  height: 11,
                ),
                TextField(
                  controller: nameController,
                ),
                const SizedBox(height: 50.0),
                ElevatedButton(
                  onPressed: () {
                    Navigator.push(
                      /*New page will push in stack following LIFO(Last In First Out)*/
                      context,
                      MaterialPageRoute(
                        builder: (context) {
                          return FlutterApp(nameController.text.toString());
                        },
                      ),
                    );
                  },
                  style: ElevatedButton.styleFrom(
                    backgroundColor: Colors.blue,
                    fixedSize: const Size(350.0, 50.0),
                  ),
                  child: const Text(
                    "Next",
                    style: TextStyle(
                        fontWeight: FontWeight.bold,
                        fontSize: 20.0,
                        color: Colors.white),
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}