Flutter Dev

Flutter Dev

1586171580

A Resource to help Developers Evaluate and use Flutter

Flutter Gallery is a resource to help developers evaluate and use Flutter. It is a collection of Material Design & Cupertino widgets, behaviors, and vignettes implemented with Flutter. We often get asked how one can see Flutter in action, and this gallery demonstrates what Flutter provides and how it behaves in the wild.

Running Flutter Gallery on Flutter’s master channel

The Flutter Gallery targets Flutter’s master channel. As such, it can take advantage of new SDK features that haven’t landed in the stable channel.

If you’d like to run the Flutter Gallery, make sure to switch to the master channel first:

flutter channel master
flutter upgrade

When you’re done, use this command to return to the safety of the stable channel:

flutter channel stable
flutter upgrade

Supported Platforms

Flutter Gallery has been built to support multiple platforms. This includes:

  • Android
  • iOS
  • web
  • macOS
  • Linux
  • Windows

That being said, extra steps must be taken to enable Desktop support. For example, to run the macOS app:

cd gallery/
flutter config --enable-macos-desktop
flutter create .
flutter run -d macos

Additionally, the UI adapts between mobile and desktop layouts regardless of the platform it runs on. This is determined based on window size as outlined in adaptive.dart.

To include a new splash animation

  1. Convert your animation to a .gif file. Ideally, use a background color of 0xFF030303 to ensure the animation blends into the background of the app.

  2. Add your new .gif file to the assets directory under assets/splash_effects. Ensure the name follows the format splash_effect_$num.gif. The number should be the next number after the current largest number in the repository.

  3. Update the map _effectDurations in splash.dart to include the number of the new .gif as well as its estimated duration. The duration is used to determine how long to display the splash animation at launch.

Generating localized strings and highlighted code segments

To generate localized strings or highlighted code segments, make sure that you have grinder installed. You can install it by getting the packages in samples/gallery/:

flutter pub get

To generate localized strings (see separate README for more details):

flutter pub run grinder l10n

To generate code segments (see separate README for more details):

flutter pub run grinder update-code-segments

Creating a new release (for Flutter org members)

  1. Bump the version number up in the pubspec.yaml. Use semantic versioning to determine which number to increment. For example 2.2.0+020200 should become 2.3.0+020300.

  2. Create a tag on the master branch of this repo in the form of v2.3.

    • git tag v2.3
    • git push --tags
  3. Publish the web release (using the peanut package).

    • flutter pub global activate peanut
    • flutter pub global run peanut:peanut
    • git push upstream gh-pages:gh-pages
      • git update-ref refs/heads/gh-pages upstream/gh-pages if you need to align with upstream.
  4. Publish the Android release (using the correct signing certificates).

    • Create the app bundle with flutter build appbundle.
    • Upload to the Play store console.
    • Publish the Play store release.
    • Create the APK with flutter build apk (this is for the Github release).
  5. Draft a release in Github from the tag you created, call the release Flutter Gallery 2.x

    • Upload the Android APK from above.
    • Create and upload the macOS build by running flutter build macos and zipping the app inside build/macos/Build/Products/Release.
    • Optional: Create and upload the Linux/Windows builds.
    • Publish the release.

Download Details:

Author: flutter

GitHub: https://github.com/flutter/gallery

#flutter #dart #programming

What is GEEK

Buddha Community

A Resource to help Developers Evaluate and use Flutter

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.

sksl_warm-up

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.

flutter_autofill

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.

flutter_DatePicker

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

Juned Ghanchi

1621572917

Flutter App Development Company India, Flutter App Developers for Hire

We build the best-in-class flutter apps that let your business work with great capacity and with a lower operating cost. And businesses can perform well and achieve higher productivity with minimal efforts.

Using app built by our developers eliminates the need to hire separate programmers for native platforms. The apps developed with the Flutter SDK package are heavily optimized for native style platforms and API integrations.

Hire the flutter app developers in India and get natively compiled top-notch app for mobile, web, and desktop.

#flutter app development company india #flutter app developers india #hire flutter developers india #flutter app development company #flutter app developers #hire flutter developers

Hire Flutter Developer

Are you looking for next-generation mobile applications to increase business benefits?

HourlyDeveloper.io is one of the most reputable mobile app development company, which provides Flutter app development services to various industries across the globe. Hire Flutter Developer who is adept at building native and fast development of Android, iOS mobile apps. we are offering both hourly and full time dedicated services.

Consult with experts: https://bit.ly/2CWJgHyFlutter app developer

#hire flutter developer #flutter developer #flutter app development services #flutter app development company #flutter app development #flutter app developer

Idrish Dhankot

Idrish Dhankot

1622532470

Hire Dedicated Flutter App Developer USA| Flutter App Developers

Hire Flutter App Developers: WebClues Infotech is a Flutter App Development company. Our Flutter mobile app development team can create cross-platform apps for different industry verticals. Our Flutter developers will help you extend your business’s scope by developing enhanced functionality and a feature-rich app. To provide a rich user experience to your users, hire dedicated Flutter app developers from WebClues Infotech today!

#hire flutter app developers #hire dedicated flutter app developer usa #hire flutter app developer usa #hire dedicated flutter app developer #hire flutter developer #flutter app development company

Hire Dedicated Flutter Developer - WebClues Infotech

Cross-Platform app development is taking the mobile app development industry by a storm by reducing the development cost as well as complication. The forefront technology driving this growth is Flutter for mobile app development.

Are you looking to develop an interactive and uncomplicated app for your Startup or Business?

We at WebClues Infotech offer a Flutter developer hiring service with vast experience and expertise. You must be thinking why should I Hire a Flutter Developer from WebClues Infotech?

  • Dedicated Approach
  • Quick Response Approach
  • Experienced in your business segment
  • Quick Turnaround time

Want a flutter developer that has the above traits? Get in touch with us

Book Free Interview: https://bit.ly/3dDShFg

#hire dedicated flutter developer #hire flutter developers #hire flutter developer #hire flutter app developers #hire flutter app developers in india #flutter developer