Bulah  Pfeffer

Bulah Pfeffer


Put Flutter to Work in Just a Few Lines of Code

Connect a Flutter feature to a native app and get up and running in just a few lines of code

If you’ve ever wanted to try using Flutter, but don’t want to build something from scratch, Flutter’s add-to-app functionality is a great place to start. To make it even easier to put Flutter to work for you, we teamed up with the Flutter team to create a sample add-to-app prototype to showcase how Flutter can be integrated into a native codebase with minimal effort. Whether you want to take Flutter for a trial run or show your team how Flutter works in a tangible way, this article is for you!

Adding Flutter to a native newsfeed app

In this tutorial, we’ll show you how to take a Flutter feature and, using Flutter’s add-to-app API, incorporate it into a native app in just a few lines.

The project we’ll look at is split into two parts. The first part contains three identical newsfeed applications for three separate native platforms: Android, iOS, and the web. The app is interactive, so you can run it on a device and scroll through the articles, click on the news items, and more. The second part of this project is a dialog that pops up when interacting with the app and asks users to submit feedback. This feature, which we’ll call the NPS (Net Promoter Score) module, is built with Flutter.

First, go to the example repository. Here you’ll see a folder for each platform containing the native code for the newsfeed app. Also in the repository is the flutter_nps folder that contains all of the Flutter code for the NPS module.

Adding Flutter on the web with Angular

The Flutter module runs as an <iframe> within the native web app. To integrate the feature into the Angular codebase, first run a Flutter build for the web target. This step generates an index.html and other necessary files. Copy all of the build files into the Angular app src folder. From there, you can reference the build files within the iframe. The next time you run the web app, you’ll see the Flutter feature!

View the README for full instructions.

Adding Flutter to Android with Kotlin

Now let’s add the NPS module into the Android app. First start a Flutter activity using a cached engine. As soon as you launch the native news app, the Flutter engine warms up in the background. Then, you’ll start a new activity and point it to the Flutter activity. This ensures a quick transition from the native Kotlin code to Flutter and allow the Flutter feature to work seamlessly within the Android app.

View the README for full instructions.

Adding Flutter on iOS with SwiftUI

Finally, we can add the NPS Module into the iOS App. First, embed the compiled Flutter module into your application in Xcode’s build settings. Then, in your application delegate, create an instance of the Flutter engine and start it up. With that done, you’re ready to display Flutter UI wherever needed — just create a FlutterViewController using the Flutter Engine and present it. Then run flutter build ios-framework with the path.

View the README for full instructions.

Put Flutter to work for you (and your team!)

Now that you have the Flutter code up and running within your app, you can experiment with some of the fun parts of Flutter. The following sections include some ideas for where to begin.

Supporting multiple platforms

In this newsfeed example, you can see how the NPS module supports platform differences. On the web, the module appears as a dialog on top of the newsfeed and reacts to input from a mouse or screen reader. On mobile, the module takes up the full screen space and reacts to input via touch or screen reader.

Note that the Flutter NPS module contains Material widgets, which automatically handle gesture detection, depending on the user’s device. If using a desktop device, the app receives mouse input, and if using a mobile device, the app receives touch input.


This prototype includes a few implicit animations that are easy to adjust since they are built into the Flutter framework. For example, if you want to make changes to the AnimatedContainer widget, simply adjust its properties, such as the duration of the animation, the height of the container, its shape, and color.

return AnimatedContainer(
  duration: duration,
  height: Spacing.huge,
  decoration: BoxDecoration(
    shape: BoxShape.circle,
    color: isSelected 
      ? NpsColors.colorSecondary 
      : NpsColors.colorGrey5,

The NPS module includes a custom page animation transition. Take a look at the SlideTransition widget for another animation example that could be customized by updating its duration and other elements.

  position: Tween<Offset>(
    begin: const Offset(0, 1),
    end: Offset.zero,
  child: child,

If you want to take your animations to the next level, you could import the animations package from pub.dev and use some of the fancy, pre-built animations.


It’s also simple to update the theme of the NPS module. Because it uses the built-in Material theming via ThemeData, you can simply update the colors, button style, and font all in one place. For example, to change the accentColor and backgroundColor of the NPS module with Flutter, update to your desired color using the provided Material color palette shades, or your desired custom colors.

class AppTheme {
  ThemeData get theme => ThemeData(
        colorScheme: ColorScheme.fromSwatch(
          accentColor: NpsColors.colorSecondary,
          backgroundColor: NpsColors.colorWhite,
        scaffoldBackgroundColor: NpsColors.colorWhite,
        elevatedButtonTheme: ElevatedButtonThemeData(
          style: ElevatedButton.styleFrom(
            primary: NpsColors.colorSecondary,
            shape: RoundedRectangleBorder(
              borderRadius: BorderRadius.circular(24),
            backgroundColor: MaterialStateProperty.resolveWith<Color?>(
              (Set<MaterialState> states) {
                if (!states.contains(MaterialState.disabled)) {
                  return NpsColors.colorSecondary;
                } else if (states.contains(MaterialState.disabled)) {
                  return NpsColors.colorWhite;
                return null;
        textTheme: const TextTheme(
          headline5: NpsStyles.headline5,
          subtitle1: NpsStyles.subtitle1,
          bodyText2: NpsStyles.link,

Additional features

The Flutter NPS module uses flutter_bloc for state management to keep track of the user’s score response. Cubit is one of many options for state management when building Flutter applications. The feature also includes unit and widget tests, which are useful tools to ensure that the code you’re writing is working as intended. Finally, the codebase has localization support for 78 languages out of the box. This project has GitHub Actions integration for continuous integration to run formatting, linting, and test phases before merging changes.


While this prototype does not currently interact with a backend, you could configure it with a backend of your choosing to store the data from the NPS module, or even pull in sample articles for the native newsfeed. One option to explore is Firebase, which integrates seamlessly with Flutter. See the Firebase documentation to add Firebase to your Flutter app.

Now that you know how to add a Flutter feature into a native web, Android, and iOS codebase, you could follow a similar process to integrate the feature into any native app. See the full add-to-app documentation for more information.

Check out the full code in the open source repository here.

Original article source at https://medium.com

#dart #flutter #programming 

What is GEEK

Buddha Community

Put Flutter to Work in Just a Few Lines of Code

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 RangeSliderDatePicker 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:

#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

Terry  Tremblay

Terry Tremblay


What is Flutter and why you should learn it?

Flutter is an open-source UI toolkit for mobile developers, so they can use it to build native-looking** Android and iOS** applications from the same code base for both platforms. Flutter is also working to make Flutter apps for Web, PWA (progressive Web-App) and Desktop platform (Windows,macOS,Linux).


Flutter was officially released in December 2018. Since then, it has gone a much stronger flutter community.

There has been much increase in flutter developers, flutter packages, youtube tutorials, blogs, flutter examples apps, official and private events, and more. Flutter is now on top software repos based and trending on GitHub.

Flutter meaning?

What is Flutter? this question comes to many new developer’s mind.


Flutter means flying wings quickly, and lightly but obviously, this doesn’t apply in our SDK.

So Flutter was one of the companies that were acquired by **Google **for around $40 million. That company was based on providing gesture detection and recognition from a standard webcam. But later when the Flutter was going to release in alpha version for developer it’s name was Sky, but since Google already owned Flutter name, so they rename it to Flutter.

Where Flutter is used?

Flutter is used in many startup companies nowadays, and even some MNCs are also adopting Flutter as a mobile development framework. Many top famous companies are using their apps in Flutter. Some of them here are





Reflectly app

Reflectly app

Abbey Road Studios

Abbey Road Studios

and many more other apps. Mobile development companies also adopted Flutter as a service for their clients. Even I was one of them who developed flutter apps as a freelancer and later as an IT company for mobile apps.

Flutter as a service

#dart #flutter #uncategorized #flutter framework #flutter jobs #flutter language #flutter meaning #flutter meaning in hindi #google flutter #how does flutter work #what is flutter

Adobe XD plugin for Flutter with CodePen Tutorial

Recently Adobe XD releases a new version of the plugin that you can use to export designs directly into flutter widgets or screens. Yes, you read it right, now you can make and export your favorite design in Adobe XD and export all the design in the widget form or as a full-screen design, this can save you a lot of time required in designing.

What we will do?
I will make a simple design of a dialogue box with a card design with text over it as shown below. After you complete this exercise you can experiment with the UI. You can make your own components or import UI kits available with the Adobe XD.

#developers #flutter #adobe xd design export to flutter #adobe xd flutter code #adobe xd flutter code generator - plugin #adobe xd flutter plugin #adobe xd flutter plugin tutorial #adobe xd plugins #adobe xd to flutter #adobe xd tutorial #codepen for flutter.

Punith Raaj


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 :-)

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

Punith Raaj


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

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