Flutter Responsive UI for Learning Platform App

Flutter Responsive UI | Learning Platform App - Part 1

This video mainly focuses on making the simplest layout working on multiple devices, portrait, and landscape orientation. And, you will learn tips and tricks to create consistent and responsive Flutter UI.

Flutter Responsive UI | Learning Platform App - Part 2

In this video, you will more about responsive layouts using multiple layout structures for various screen resolutions and configurations.

A lot many people don’t have time to watch the full video, it is better to write an article explaining the core concepts and thought process behind code.

The Design

When I came across this design and found appropriate to explain how to create responsive layouts using Flutter SDK.

What’s the Problem?

When we talk about Flutter, we consider the amazing fact that with Flutter we write code once and run on any platform(Android, iOS, Web, Desktop, Embedded, any many more to come…). This impresses and makes you move to Flutter, no matter which mobile platform you come from.

But, how many times has it happened that you have created a screen for iPhone XS and when you run it on Android Phones, you see the most famous exception — RenderFlowException, because the sizes like 24.0, 16.0, etc. that worked for iPhone doesn’t render exactly for Android. This is because both the hardware have different screen configurations like devicePixelRatio and many others.

What is the End Result?

Well, the end product is — we need a codebase that handles portrait, the landscape for mobile and tablets and multiple mobile phone resolutions. Now, when you are targeting these many devices you already covered Desktop and Web.

How to Achieve this?

Here, in this article, I am trying to cover possible solutions but do not forget to check out the official documentation of Flutter, which covers the responsive widgets that can help in creating the ultimate layout. But, there are some more hacks that you need to use to solve our problem.

1. Strategy -1 Use a mechanism where text and image sizes can be changed based on the width, height, and orientation of the screen. I am obliged to mention the post from Daniele Cambi for his article on using the width and height of the screen to decide the text multipliers, which will make text sizes to not grow or shrink when there is a small screen size phone.
2. Strategy -2 Provide two or more layouts for portrait, landscape and also considering the width of the screen.

Let’s Begin !!! (Strategy — 1 )

I have created a very simple welcome screen mostly dealing with Column, Row and Expanded widgets. We need to have size_config.dart which will give us some multipliers like imageSizeMultiplier, textMultiplier, heightMultiplier, widthMultiplier . These all have meaningful names, that you can easily understand.

class SizeConfig {
  static double _screenWidth;
  static double _screenHeight;
  static double _blockSizeHorizontal = 0;
  static double _blockSizeVertical = 0;

  static double textMultiplier;
  static double imageSizeMultiplier;
  static double heightMultiplier;
  static double widthMultiplier;
  static bool isPortrait = true;
  static bool isMobilePortrait = false;

  void init(BoxConstraints constraints, Orientation orientation) {
    if (orientation == Orientation.portrait) {
      _screenWidth = constraints.maxWidth;
      _screenHeight = constraints.maxHeight;
      isPortrait = true;
      if (_screenWidth < 450) {
        isMobilePortrait = true;
      }
    } else {
      _screenWidth = constraints.maxHeight;
      _screenHeight = constraints.maxWidth;
      isPortrait = false;
      isMobilePortrait = false;
    }

    _blockSizeHorizontal = _screenWidth / 100;
    _blockSizeVertical = _screenHeight / 100;

    textMultiplier = _blockSizeVertical;
    imageSizeMultiplier = _blockSizeHorizontal;
    heightMultiplier = _blockSizeVertical;
    widthMultiplier = _blockSizeHorizontal;
  }
}

You need an entry point for SizeConfig to be initialized. For me, it will be when you load your first widget.

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return LayoutBuilder(
      builder: (context, constraints) {
        return OrientationBuilder(
          builder: (context, orientation) {
            SizeConfig().init(constraints, orientation);
            return MaterialApp(
              title: 'Learning Platform Application',
              theme: AppTheme.lightTheme,
              home: WelcomeScreen(),
            );
          },
        );
      },
    );
  }
}

Whenever there is layout change or orientation change, we can get new values for textMultiplier, imageMultiplier, heightMultiplier and widthMultiplier.

In the above code, if we are in landscape mode, maxHeight it becomes screen width and maxWidth becomes the screen height. _blockSizeWidth and _blocSizeHeight are the width and height of the block which is 1/100th of the screen.

It’s all up to you to decide when you consider the width of the screen to be mobile’s screen or any other screen. Here, in my case, I have considered the tablet’s portrait and landscape to be landscape category and mobile as portrait only when the screen width is less than 450.

Text Multiplier

Let us assume the textMultiplier is 8.01234… something. So, you have to first use the Text widget for one mobile size you usually work on and see what font size looks good (apart from the fact many companies have designers tell you that). Suppose the fontSize is 24, then divide fontSize by textMultiplier, let’s call this X. X is the number that multiplied with textMultiplier will give the required fontSize for every possible screen out there.

Not to forgot, FittedBox is not wrong to use while using textMultiplier. I have used a combination of both. It depends on how much space Text has to Fit.

I recommend using ThemeData, TextTheme, and TextStyles in styling.dart as I did for this project.

class AppTheme {
  AppTheme._();

  static const Color appBackgroundColor = Color(0xFFFFF7EC);
  static const Color subTitleTextColor = Color(0xFF9F988F);

  static final ThemeData lightTheme = ThemeData(
    scaffoldBackgroundColor: AppTheme.appBackgroundColor,
    brightness: Brightness.light,
    textTheme: lightTextTheme,
  );

  static final ThemeData darkTheme = ThemeData(
    scaffoldBackgroundColor: Colors.black,
    brightness: Brightness.dark,
    textTheme: darkTextTheme,
  );

  static final TextTheme lightTextTheme = TextTheme(
    title: _titleLight,
    subtitle: _subTitleLight,
    button: _buttonLight,
    display1: _greetingLight,
    display2: _searchLight,
  );

  static final TextTheme darkTextTheme = TextTheme(
    title: _titleDark,
    subtitle: _subTitleDark,
    button: _buttonDark,
    display1: _greetingDark,
    display2: _searchDark,
  );

  static final TextStyle _subTitleLight = TextStyle(
    color: subTitleTextColor,
    fontSize: 2 * SizeConfig.textMultiplier,
    height: 1.5,
  );

  static final TextStyle _subTitleDark = _subTitleLight.copyWith(color: Colors.white70);
}

Image Size Multiplier

Like textMultiplier, imageSizeMultiplier will be used which will scale images according to the screen size.

Image can also be made responsive to a certain limit by using AspectRatio, BoxFit but again it depends on the space it has to grow and shrink

Certainly, in the project, I required imageMultiplier for Icons and not the Image as I wanted the image to take maximum size possible because it is in Expanded widget. Have a look at the two code snippets below.

Expanded(
  flex: 3,
  child: Padding(
    padding: EdgeInsets.symmetric(vertical: 1 * SizeConfig.heightMultiplier),
    child: Image.asset(
      Images.homeImage,
      fit: BoxFit.fill,
    ),
  ),
)

Expanded(
  flex: 1,
  child: Icon(
    Icons.chevron_right,
    size: 6 * SizeConfig.imageSizeMultiplier,
  ),
)

Expanded used as Icon parent is in Row to give equal horizontal space.

Height Multiplier & Width Multiplier

As the name suggests, heightMultiplier and widthMultiplier can be used for making paddings, margins, Box Constraints, SizedBox, and alike widgets responsive.

Container(
  constraints: BoxConstraints(minHeight: 6.5 * SizeConfig.heightMultiplier, maxHeight: 7.9 * SizeConfig.heightMultiplier),
  decoration: BoxDecoration(
    borderRadius: BorderRadius.vertical(
      top: Radius.circular(4 * SizeConfig.heightMultiplier),
    ),
    color: AppTheme.topBarBackgroundColor,
  ),
);

FittedBox(
  child: Padding(
    padding: EdgeInsets.only(bottom: 2 * SizeConfig.heightMultiplier),
    child: Text(
      Strings.welcomeScreenSubTitle,
      style: Theme.of(context).textTheme.subtitle,
      textAlign: TextAlign.center,
    ),
  ),
);

Some screenshots after Strategy 1

Strategy — 2

If you come from a web background, there are Media Queries that execute specific CSS based on the dimensions of the screen.

If you come from Android background you know how to create Master-Detail Layout for landscape and List Screen with navigation drawer for Portrait introduced way back in 2011–12.

Both of these use cases come to a conclusion — load different layouts for certain screen sizes and orientations.

Have a look at the responsive widget that can handle multiple layouts.

class ResponsiveWidget extends StatelessWidget {
  final Widget portraitLayout;
  final Widget landscapeLayout;

  const ResponsiveWidget({
    Key key,
    @required this.portraitLayout,
    this.landscapeLayout,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    if (SizeConfig.isPortrait && SizeConfig.isMobilePortrait) {
      return portraitLayout;
    } else {
      return landscapeLayout;
    }
  }
}

This widget has two fields — portraitLayout that is used when the device width is < 450 and orientation is portrait and landscapeLayout that is used when the device’s orientation is landscape.

However, you can have your own criteria based on your app’s case.

Use ResponsiveWidget like below —

Stack(
  children: <Widget>[
    ResponsiveWidget(
      portraitLayout: TopContainerPortrait(),
      landscapeLayout: TopContainerLandscape(),
    ),
  ],
);

If you loved some or the other thing in the article, don’t forget to clap 👏.

#flutter #mobile-apps

What is GEEK

Buddha Community

Google's Flutter 1.20 stable announced with new features - Navoki

Flutter Google cross-platform UI framework has released a new version 1.20 stable.

Flutter is Google’s UI framework to make apps for Android, iOS, Web, Windows, Mac, Linux, and Fuchsia OS. Since the last 2 years, the flutter Framework has already achieved popularity among mobile developers to develop Android and iOS apps. In the last few releases, Flutter also added the support of making web applications and desktop applications.

Last month they introduced the support of the Linux desktop app that can be distributed through Canonical Snap Store(Snapcraft), this enables the developers to publish there Linux desktop app for their users and publish on Snap Store.  If you want to learn how to Publish Flutter Desktop app in Snap Store that here is the tutorial.

Flutter 1.20 Framework is built on Google’s made Dart programming language that is a cross-platform language providing native performance, new UI widgets, and other more features for the developer usage.

Here are the few key points of this release:

Performance improvements for Flutter and Dart

In this release, they have got multiple performance improvements in the Dart language itself. A new improvement is to reduce the app size in the release versions of the app. Another performance improvement is to reduce junk in the display of app animation by using the warm-up phase.

If your app is junk information during the first run then the Skia Shading Language shader provides for pre-compilation as part of your app’s build. This can speed it up by more than 2x.

Added a better support of mouse cursors for web and desktop flutter app,. Now many widgets will show cursor on top of them or you can specify the type of supported cursor you want.

Autofill for mobile text fields

Autofill was already supported in native applications now its been added to the Flutter SDK. Now prefilled information stored by your OS can be used for autofill in the application. This feature will be available soon on the flutter web.

A new widget for interaction

InteractiveViewer is a new widget design for common interactions in your app like pan, zoom drag and drop for resizing the widget. Informations on this you can check more on this API documentation where you can try this widget on the DartPad. In this release, drag-drop has more features added like you can know precisely where the drop happened and get the position.

Updated Material Slider, RangeSlider, TimePicker, and DatePicker

In this new release, there are many pre-existing widgets that were updated to match the latest material guidelines, these updates include better interaction with Slider and RangeSlider, DatePicker with support for date range and time picker with the new style.

New pubspec.yaml format

Other than these widget updates there is some update within the project also like in pubspec.yaml file format. If you are a flutter plugin publisher then your old pubspec.yaml  is no longer supported to publish a plugin as the older format does not specify for which platform plugin you are making. All existing plugin will continue to work with flutter apps but you should make a plugin update as soon as possible.

Preview of embedded Dart DevTools in Visual Studio Code

Visual Studio code flutter extension got an update in this release. You get a preview of new features where you can analyze that Dev tools in your coding workspace. Enable this feature in your vs code by _dart.previewEmbeddedDevTools_setting. Dart DevTools menu you can choose your favorite page embed on your code workspace.

Network tracking

The updated the Dev tools comes with the network page that enables network profiling. You can track the timings and other information like status and content type of your** network calls** within your app. You can also monitor gRPC traffic.

Generate type-safe platform channels for platform interop

Pigeon is a command-line tool that will generate types of safe platform channels without adding additional dependencies. With this instead of manually matching method strings on platform channel and serializing arguments, you can invoke native class and pass nonprimitive data objects by directly calling the Dartmethod.

There is still a long list of updates in the new version of Flutter 1.2 that we cannot cover in this blog. You can get more details you can visit the official site to know more. Also, you can subscribe to the Navoki newsletter to get updates on these features and upcoming new updates and lessons. In upcoming new versions, we might see more new features and improvements.

You can get more free Flutter tutorials you can follow these courses:

• Setup Flutter Desktop on Windows, Linux, MacOS using VSCode and Build – Flutter Tutorial
• Flutter Desktop Linux app | Build and Publish on Snapcraft Store
• Firebase Local Emulator Suite in Flutter

#dart #developers #flutter #app developed #dart devtools in visual studio code #firebase local emulator suite in flutter #flutter autofill #flutter date picker #flutter desktop linux app build and publish on snapcraft store #flutter pigeon #flutter range slider #flutter slider #flutter time picker #flutter tutorial #flutter widget #google flutter #linux #navoki #pubspec format #setup flutter desktop on windows

The Ultimate Guide To Tik Tok Clone App With Firebase - Ep 2

The Ultimate Guide To Tik Tok Clone App With Firebase - Ep 2
In this video, I'm going to show you how to make a Cool Tik Tok App a new Instagram using Flutter,firebase and visual studio code.

In this tutorial, you will learn how to Upload a Profile Pic to Firestore Data Storage.

🚀 Nice, clean and modern TikTok Clone #App #UI made in #Flutter⚠️

Starter Project : https://github.com/Punithraaj/Flutter_Tik_Tok_Clone_App/tree/Episode1

► Timestamps 
0:00 Intro 0:20 
Upload Profile Screen 
16:35 Image Picker
20:06 Image Cropper 
24:25 Firestore Data Storage Configuration.

⚠️ IMPORTANT: If you want to learn, I strongly advise you to watch the video at a slow speed and try to follow the code and understand what is done, without having to copy the code, and then download it from GitHub.

► Social Media 
GitHub: https://github.com/Punithraaj/Flutter_Tik_Tok_Clone_App.git
LinkedIn: https://www.linkedin.com/in/roaring-r...
Twitter: https://twitter.com/roaringraaj
Facebook: https://www.facebook.com/flutterdartacademy

► Previous Episode : https://youtu.be/QnL3fr-XpC4
► Playlist: https://youtube.com/playlist?list=PL6vcAuTKAaYe_9KQRsxTsFFSx78g1OluK

I hope you liked it, and don't forget to like,comment, subscribe, share this video with your friends, and star the repository on GitHub!
⭐️ Thanks for watching the video and for more updates don't forget to click on the notification. 
⭐️Please comment your suggestion for my improvement. 
⭐️Remember to like, subscribe, share this video, and star the repo on Github :)

Hope you enjoyed this video!
If you loved it, you can Buy me a coffee : https://www.buymeacoffee.com/roaringraaj

LIKE & SHARE & ACTIVATE THE BELL Thanks For Watching :-)
 
https://youtu.be/F_GgZVD4sDk

#flutter tutorial - tiktok clone with firebase #flutter challenge @tiktokclone #fluttertutorial firebase #flutter firebase #flutter pageview #morioh #flutter

Flutter Hotel Booking UI - Book your Stay At A New Hotel With Flutter - Ep1

https://youtu.be/-tHUmjIkGJ4
Flutter Hotel Booking UI - Book your Stay At A New Hotel With Flutter - Ep1
#flutter #fluttertravelapp #hotelbookingui #flutter ui design 

In this video, I'm going to show you how to make a Cool Hotel Booking App using Flutter and visual studio code. 

In this tutorial, you will learn how to create a Splash Screen and Introduction Screen, how to implement a SmoothPageIndicator in Flutter. 

🚀 Nice, clean and modern Hotel Booking #App #UI made in #Flutter 

⚠️ IMPORTANT: If you want to learn, I strongly advise you to watch the video at a slow speed and try to follow the code and understand what is done, without having to copy the code, and then download it from GitHub. 

► Social Media 

    GitHub: https://github.com/Punithraaj 

    LinkedIn: https://www.linkedin.com/in/roaring-r...

    Twitter: https://twitter.com/roaringraaj

    Facebook: https://www.facebook.com/flutterdartacademy

I hope you liked it, and don't forget to like,comment, subscribe, share this video with your friends, and star the repository on GitHub! 

⭐️ Thanks for watching the video and for more updates don't forget to click on the notification.⭐️Please comment your suggestion for my improvement. ⭐️Remember to like, subscribe, share this video, and star the repo on Github :)Hope you enjoyed this video! If you loved it, you can Buy me a coffee : https://www.buymeacoffee.com/roaringraaj

#flutter riverpod #flutter travel app #appointment app flutter #morioh

Flutter Hotel Booking UI - Book your Stay At A New Hotel - Ep3

Flutter Hotel Booking UI - Book your Stay At A New Hotel - Ep3

In this video, I'm going to show you how to make a Cool Hotel Booking App using Flutter from scratch.

In this Episode , you will learn how to create a Custom Navigation Bar for Navigating between Screen.

🚀 Nice, clean and modern Hotel Booking #App #UI made in #Flutter

⚠️ IMPORTANT: If you want to learn, I strongly advise you to watch the video at a slow speed and try to follow the code and understand what is done, without having to copy the code, and then download it from GitHub.

Starter Project : https://github.com/Punithraaj/Flutter_Hotel_Booking_UI/tree/Episode-2

► Timestamps 

0:00 Intro 

0:15 Custom Bottom Navigation Screen 

07:26 Tab Button

► Social Media 

GitHub: https://github.com/Punithraaj/Flutter_Hotel_Booking_UI

LinkedIn: https://www.linkedin.com/in/roaring-r...

Twitter: https://twitter.com/roaringraaj

Facebook: https://www.facebook.com/flutterdartacademy

► Previous Episode : https://youtu.be/A0QdZPpMBb0

► Playlist: https://www.youtube.com/playlist?list=PL6vcAuTKAaYdboy1OOxnMekOEuRzHUvR6

I hope you liked it, and don't forget to like,comment, subscribe, share this video with your friends, and star the repository on GitHub! 

⭐️ Thanks for watching the video and for more updates don't forget to click on the notification. ⭐️Please comment your suggestion for my improvement. ⭐️Remember to like, subscribe, share this video, and star the repo on Github :)

Hope you enjoyed this video!If you loved it, you can Buy me a coffee : https://www.buymeacoffee.com/roaringraaj

#morioh #flutter travel app #appointment app flutter #flutter #fluttertravelapp #hotelbookingui #flutter ui design #book your stay at a new hotel app #hotel booking app flutter #flutter travel ui tutorial

https://youtu.be/cCion2y7hNE

 

Flutter Hotel Booking UI - Book your Stay At A New Hotel - Ep3

Flutter Hotel Booking UI - Book your Stay At A New Hotel - Ep3

In this video, I'm going to show you how to make a Cool Hotel Booking App using Flutter from scratch.
In this Episode , you will learn how to create a Custom Navigation Bar for Navigating between Screen. 
🚀 Nice, clean and modern Hotel Booking #App #UI made in #Flutter

⚠️ IMPORTANT: If you want to learn, I strongly advise you to watch the video at a slow speed and try to follow the code and understand what is done, without having to copy the code, and then download it from GitHub.

Starter Project : https://github.com/Punithraaj/Flutter_Hotel_Booking_UI/tree/Episode-2

► Timestamps 
0:00 Intro 
0:15 Custom Bottom Navigation Screen 
07:26 Tab Button

► Social Media 
GitHub: https://github.com/Punithraaj/Flutter_Hotel_Booking_UI
LinkedIn: https://www.linkedin.com/in/roaring-r...
Twitter: https://twitter.com/roaringraaj
Facebook: https://www.facebook.com/flutterdartacademy

► Previous Episode : https://youtu.be/A0QdZPpMBb0
► Playlist: https://www.youtube.com/playlist?list=PL6vcAuTKAaYdboy1OOxnMekOEuRzHUvR6

RESOURCES 
Complete Hotel Booking App UI Design Tutorial: https://youtube.com/playlist?list=PL6vcAuTKAaYdboy1OOxnMekOEuRzHUvR6
Complete Tik Tok Clone App Tutorial: https://youtube.com/playlist?list=PL6vcAuTKAaYe_9KQRsxTsFFSx78g1OluK 
Complete Online Books Store Flutter UI Tutorial: https://youtube.com/playlist?list=PL6vcAuTKAaYdRkc_jt08x23plwGAYiGTU 
Flutter UI Tutorial: https://youtube.com/playlist?list=PL6vcAuTKAaYeKyXAwzB9JnuR5l0dOlNRh
Flutter Integration Tutorial: https://youtube.com/playlist?list=PL6vcAuTKAaYdpG5qfCjSEgugvvhqFemes

I hope you liked it, and don't forget to like,comment, subscribe, share this video with your friends, and star the repository on GitHub!
⭐️ Thanks for watching the video and for more updates don't forget to click on the notification. 
⭐️Please comment your suggestion for my improvement. 
⭐️Remember to like, subscribe, share this video, and star the repo on Github :)

Hope you enjoyed this video!
If you loved it, you can Buy me a coffee : https://www.buymeacoffee.com/roaringraaj

LIKE & SHARE & ACTIVATE THE BELL Thanks For Watching :-)

https://youtu.be/cCion2y7hNE
#appointment app flutter #flutter #fluttertravelapp #hotelbookingui #flutter ui design #book your stay at a new hotel app #hotel booking app flutter #flutter travel ui tutorial #morioh #flutter