How to Build a Beautiful Login Screen in Flutter

Are you tired of boring and unattractive login screens in your mobile apps? Do you want to create a stunning and eye-catching login screen that will make your users want to log in again and again? Well, you're in luck because we're going to show you how to build a beautiful login screen in Flutter!

Flutter is a powerful and flexible mobile app development framework that allows you to create beautiful and responsive user interfaces. With Flutter, you can easily create custom widgets, animations, and transitions that will make your app stand out from the crowd.

In this article, we'll walk you through the steps to create a beautiful login screen in Flutter. We'll cover everything from designing the layout to adding animations and transitions. So, let's get started!

Designing the Layout

The first step in creating a beautiful login screen is to design the layout. You want to create a layout that is both visually appealing and easy to use. Here are some tips to help you design a great login screen:

Use a Simple and Clean Design

When designing your login screen, it's important to keep things simple and clean. Avoid cluttering the screen with too many elements or using too many colors. Stick to a simple color scheme and use white space to create a clean and uncluttered design.

Use a Large and Clear Logo

Your app's logo is an important part of your brand identity, so make sure it's prominently displayed on your login screen. Use a large and clear logo that is easy to read and instantly recognizable.

Use a Clear and Easy-to-Read Font

When choosing a font for your login screen, make sure it's easy to read and clear. Avoid using fancy or decorative fonts that can be difficult to read on small screens.

Use a Simple and Intuitive Form

Your login form should be simple and intuitive. Use clear labels and placeholders to guide users through the form. Avoid using too many fields or asking for too much information.

Use a Call-to-Action Button

Your call-to-action button is the most important element on your login screen. Make sure it stands out and is easy to find. Use a contrasting color and a clear label to encourage users to click on it.

Building the Login Screen in Flutter

Now that you have a design in mind, it's time to start building your login screen in Flutter. Here are the steps to follow:

Step 1: Create a New Flutter Project

The first step is to create a new Flutter project. Open Android Studio and select "Start a new Flutter project." Choose a project name and location, and select "Flutter Application" as the project type.

Step 2: Add Dependencies

Next, you need to add the dependencies for the widgets and animations you'll be using in your login screen. Open the pubspec.yaml file and add the following dependencies:

dependencies:
  flutter:
    sdk: flutter
  cupertino_icons: ^0.1.3
  flutter_svg: ^0.17.4
  animated_text_kit: ^2.3.0

Step 3: Design the Layout

Now it's time to design the layout for your login screen. Open the main.dart file and add the following code:

import 'package:flutter/material.dart';
import 'package:flutter_svg/flutter_svg.dart';
import 'package:animated_text_kit/animated_text_kit.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Login Screen',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: LoginPage(),
    );
  }
}

class LoginPage extends StatefulWidget {
  @override
  _LoginPageState createState() => _LoginPageState();
}

class _LoginPageState extends State<LoginPage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Container(
        decoration: BoxDecoration(
          gradient: LinearGradient(
            begin: Alignment.topCenter,
            end: Alignment.bottomCenter,
            colors: [
              Colors.blue[800],
              Colors.blue[200],
            ],
          ),
        ),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: <Widget>[
            SizedBox(
              height: 80,
            ),
            Padding(
              padding: EdgeInsets.all(20),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: <Widget>[
                  Text(
                    'Login',
                    style: TextStyle(
                      color: Colors.white,
                      fontSize: 40,
                    ),
                  ),
                  SizedBox(
                    height: 10,
                  ),
                  TypewriterAnimatedTextKit(
                    text: ['Welcome Back'],
                    textStyle: TextStyle(
                      color: Colors.white,
                      fontSize: 20,
                    ),
                  ),
                ],
              ),
            ),
            SizedBox(
              height: 20,
            ),
            Expanded(
              child: Container(
                decoration: BoxDecoration(
                  color: Colors.white,
                  borderRadius: BorderRadius.only(
                    topLeft: Radius.circular(60),
                    topRight: Radius.circular(60),
                  ),
                ),
                child: Padding(
                  padding: EdgeInsets.all(30),
                  child: Column(
                    children: <Widget>[
                      SizedBox(
                        height: 60,
                      ),
                      Container(
                        decoration: BoxDecoration(
                          color: Colors.white,
                          borderRadius: BorderRadius.circular(10),
                          boxShadow: [
                            BoxShadow(
                              color: Color.fromRGBO(225, 95, 27, .3),
                              blurRadius: 20,
                              offset: Offset(0, 10),
                            ),
                          ],
                        ),
                        child: Column(
                          children: <Widget>[
                            Container(
                              padding: EdgeInsets.all(10),
                              decoration: BoxDecoration(
                                border: Border(
                                  bottom: BorderSide(
                                    color: Colors.grey[200],
                                  ),
                                ),
                              ),
                              child: TextField(
                                decoration: InputDecoration(
                                  hintText: 'Email or Phone Number',
                                  hintStyle: TextStyle(
                                    color: Colors.grey,
                                  ),
                                  border: InputBorder.none,
                                ),
                              ),
                            ),
                            Container(
                              padding: EdgeInsets.all(10),
                              decoration: BoxDecoration(
                                border: Border(
                                  bottom: BorderSide(
                                    color: Colors.grey[200],
                                  ),
                                ),
                              ),
                              child: TextField(
                                decoration: InputDecoration(
                                  hintText: 'Password',
                                  hintStyle: TextStyle(
                                    color: Colors.grey,
                                  ),
                                  border: InputBorder.none,
                                ),
                              ),
                            ),
                          ],
                        ),
                      ),
                      SizedBox(
                        height: 40,
                      ),
                      Container(
                        height: 50,
                        margin: EdgeInsets.symmetric(horizontal: 50),
                        decoration: BoxDecoration(
                          borderRadius: BorderRadius.circular(50),
                          color: Colors.blue[800],
                        ),
                        child: Center(
                          child: Text(
                            'Login',
                            style: TextStyle(
                              color: Colors.white,
                              fontSize: 18,
                              fontWeight: FontWeight.bold,
                            ),
                          ),
                        ),
                      ),
                      SizedBox(
                        height: 30,
                      ),
                      Text(
                        'Forgot Password?',
                        style: TextStyle(
                          color: Colors.grey,
                        ),
                      ),
                    ],
                  ),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

This code creates a basic login screen layout with a gradient background, a logo, a title, a form, and a call-to-action button. You can customize the colors, fonts, and other elements to match your app's design.

Step 4: Add Animations and Transitions

To make your login screen more engaging and interactive, you can add animations and transitions. Here are some examples:

Animated Logo

You can add an animation to your logo to make it more dynamic. Here's how:

class AnimatedLogo extends StatefulWidget {
  @override
  _AnimatedLogoState createState() => _AnimatedLogoState();
}

class _AnimatedLogoState extends State<AnimatedLogo>
    with SingleTickerProviderStateMixin {
  AnimationController _controller;
  Animation<double> _animation;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(
      duration: const Duration(seconds: 2),
      vsync: this,
    )..repeat(reverse: true);
    _animation = CurvedAnimation(
      parent: _controller,
      curve: Curves.easeInOut,
    );
  }

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return ScaleTransition(
      scale: _animation,
      child: SvgPicture.asset(
        'assets/logo.svg',
        height: 100,
        width: 100,
      ),
    );
  }
}

This code creates an animated logo that scales up and down repeatedly. You can customize the animation duration, curve, and other properties to match your app's design.

Animated Text

You can also add an animation to your title to make it more interesting. Here's how:

class AnimatedTitle extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return TypewriterAnimatedTextKit(
      text: ['Login'],
      textStyle: TextStyle(
        color: Colors.white,
        fontSize: 40,
      ),
      speed: Duration(milliseconds: 200),
    );
  }
}

This code creates an animated title that types out the word "Login" letter by letter. You can customize the animation speed, text, and other properties to match your app's design.

Animated Button

Finally, you can add an animation to your call-to-action button to make it more engaging. Here's how:

class AnimatedButton extends StatefulWidget {
  @override
  _AnimatedButtonState createState() => _AnimatedButtonState();
}

class _AnimatedButtonState extends State<AnimatedButton>
    with SingleTickerProviderStateMixin {
  AnimationController _controller;
  Animation<double> _animation;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(
      duration: const Duration(milliseconds: 500),
      vsync: this,
    );
    _animation = CurvedAnimation(
      parent: _controller,
      curve: Curves.easeInOut,
    );
  }

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTapDown: _onTapDown,
      onTapUp: _onTapUp,
      onTapCancel: _onTapCancel,
      child: ScaleTransition(
        scale: _animation,
        child: Container(
          height: 50,
          margin: EdgeInsets.symmetric(horizontal: 50),
          decoration: BoxDecoration(
            borderRadius: BorderRadius.circular(50),
            color: Colors.blue[800],
          ),
          child: Center(
            child: Text(
              'Login',
              style: TextStyle(
                color: Colors.white,
                fontSize: 18,
                fontWeight: FontWeight.bold,
              ),
            ),
          ),
        ),
      ),
    );
  }

  void _onTapDown(TapDownDetails details) {
    _controller.forward();
  }

  void _onTapUp(TapUpDetails details) {
    _controller.reverse();
  }

  void _onTapCancel() {
    _controller.reverse();
  }
}

This code creates an animated button that scales up when pressed and scales down when released. You can customize the animation duration, curve, and other properties to match your app's design.

Conclusion

Congratulations! You've learned how to build a beautiful login screen in Flutter. With the tips and techniques we've covered, you can create a stunning and engaging login screen that will make your users want to log in again and again.

Remember to keep things simple and clean, use a large and clear logo, use a clear and easy-to-read font, use a simple and intuitive form, and use a call-to-action button. And don't forget to add animations and transitions to make your login screen more engaging and interactive.

We hope you found this article helpful. If you have any questions or comments, please leave them below. And don't forget to check out our other articles on Flutter design and mobile app development!

Editor Recommended Sites