Flutter

No-code App Development Using FlutterFlow

Are you looking to revolutionize your app development workflow?

Look no further than FlutterFlow – an innovative visual development platform that’s taking app development to the next level with its intuitive Drag & Drop functionality. In this blog post, we’ll dive into what FlutterFlow is, its key features, and how you can use it to rapidly bring your app ideas to life.

What is FlutterFlow?

At its core, FlutterFlow is a powerful visual development platform designed to simplify and accelerate the process of building mobile and web applications. It’s built on top of Google’s Flutter framework, which is renowned for its ability to create high-quality, natively compiled applications for mobile, web, and desktop from a single codebase.

FlutterFlow takes the power of Flutter and adds an intuitive drag-and-drop interface, making it accessible to developers of all skill levels. Whether you’re a seasoned developer or just starting out, you can leverage FlutterFlow to design, develop, and deploy apps without the need for extensive coding knowledge.

Key Features of FlutterFlow

1. Visual Interface: FlutterFlow offers a visual interface that lets you design your app’s user interface by simply dragging and dropping elements onto the canvas. This speeds up the design process and ensures a pixel-perfect result.

2. Widgets Gallery: The platform provides a wide range of pre-built widgets that you can customize to match your app’s design. From buttons and text fields to complex interactive components, FlutterFlow has you covered.

3. Responsive Design: Building apps that look great on various devices is essential. FlutterFlow enables you to create responsive layouts that adapt seamlessly to different screen sizes and orientations.

4. Data Binding: Connect your app’s UI to data sources easily. FlutterFlow allows you to bind data from APIs or databases to your UI components, keeping your app’s content up-to-date.

5. Collaboration: Collaborate with team members in real-time. Whether you’re a solo developer or part of a team, FlutterFlow supports seamless collaboration, enhancing productivity.

Getting Started with FlutterFlow

1. Sign Up: To get started, sign up for a FlutterFlow account. You can choose from different pricing plans based on your needs.

2. Create a New Project: Once you’re in, create a new project and choose whether you’re building a mobile or web app.

3. Design Your App: Use the visual editor to design your app’s UI. Drag and drop widgets onto the canvas, arrange them, and customize their properties.

4. Add Functionality: Use the built-in logic builder to add functionality to your app. Define interactions, create conditional statements, and more – all without writing extensive code.

5. Preview and Test: Before deploying your app, use the preview feature to test how it looks and functions. Make adjustments as needed to ensure a seamless user experience.

6. Deploy Your App: Once you’re satisfied with your app, deploy it with just a few clicks. FlutterFlow takes care of the technical details, allowing you to focus on delivering an exceptional app.

Conclusion

In the fast-paced world of app development, tools like FlutterFlow are a game-changer. They empower developers to create robust and visually stunning applications without the worry of traditional coding methods. By harnessing the power of Google’s Flutter framework and adding a user-friendly visual interface, FlutterFlow is designed to redefine how we approach app development.

So whether you’re a startup founder looking to build a prototype, a developer aiming to speed up your workflow, or someone passionate about turning your app ideas into reality, FlutterFlow has everything you need to succeed.

For more information, please head over to our Hire Flutter Developer page and to develop a custom mobile application using Flutter, Hire Flutter Developer at HK Infosoft – we are destined to provide you with an innovative solution using the latest technology stacks. E-mail us any clock at – hello@hkinfosoft.com or Skype us: “hkinfosoft”.

Content Source:

1. flutterflow.io

What’s new in Flutter 3.3

Only three months ago Google announced Flutter 3, a massive milestone that included stable support for all platforms! The good news is that the momentum since this major release has not slowed down. Since the release of Flutter 3, Flutter has merged 5,687 pull requests.

This release brings updates to Flutter web, desktop, text handling improvements in performance — and much more!

Framework

Global Selection

Until now, Flutter web apps didn’t match the expected behavior when attempting to select text. Like Flutter apps, native web applications are composed of a tree of elements. In a traditional web app, you can select multiple web elements with a single sweeping gesture, something that couldn’t be easily done on a Flutter web app.

Today that all changes! With the introduction of the SelectableArea widget, any child of the SelectableArea widget has selection enabled for free!

Pic courtesy: medium.com

To take advantage of this powerful new feature, simply wrap your route body (such as the Scaffold) with the SelectionArea widget and let Flutter do the rest.

Trackpad input

Flutter 3.3 provides improved support for trackpad input. This not only provides richer and smoother control but also reduces misinterpretation in certain cases. For an example of this misinterpretation, check out the Drag a UI element page in the Flutter cookbook. Scroll to the bottom of the page to get to the DartPad instance, and perform the following steps:

1. Size the window smaller so that the upper part presents a scrollbar
2. Hover over the upper part
3. Use a trackpad to scroll
4. Prior to installing Flutter 3.3, scrolling on a trackpad drags the item because Flutter was dispatching emulated general events
5. After installing Flutter 3.3, scrolling on a trackpad correctly scrolls the list because Flutter is delivering the “scrolling” gesture, which isn’t recognized by the cards, but is recognized by the scroll view

Scribble

Flutter now supports Scribble handwriting input using the Apple Pencil on iPadOS. This feature is enabled by default on CupertinoTextField, TextField, and EditableText. To enable this feature for your end users, simply upgrade to Flutter 3.3.

Pic courtesy: medium.com

Text input

To improve support for rich text editing, this release introduces the ability to receive granular text updates from the platform’s TextInputPlugin. Previously, the TextInputClient only delivered the new editing state with no delta between the old and new, TextEditingDeltas and the DeltaTextInputClient fill this information gap. Having access to these deltas allows you to build an input field with styled ranges that expand and contract as you type.

Material Design 3

The Flutter team continues to migrate more Material Design 3 components to Flutter. This release includes updates to IconButton, Chips, and large and medium variants for AppBar.

IconButton

Pic courtesy: medium.com

Chip

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Medium and large AppBar

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Desktop

Windows

Previously, the Windows desktop application’s version was set by a file specific to the Windows application. This behavior was inconsistent with the way other platforms set their versions.

Windows desktop application versions can now be set from your projects pubspec.yaml file and build arguments. This makes it easier to enable auto updates for your end customers to get the latest and greatest when an application update is pushed.

Packages

go_router

When designing apps with complex navigation needs, things can get pretty hard to wrap your head around. To extend Flutter’s native navigation API, the team has published a new version of the go_router package, making it simpler to design routing logic that works across mobile, desktop, and the web.

The go router package, maintained by the Flutter team, simplifies routing by providing a declarative, url-based API, making it easier to navigate and handle deep-links. The latest version (4.3) enables apps to redirect using asynchronous code, and includes other breaking changes described in the migration guide.

VS Code extension enhancements

The Visual Studio Code extension for Flutter has several updates including improvements for adding dependencies. You can now add multiple, comma-separated dependencies in one step using Dart: Add Dependency.

Pic courtesy: medium.com

Performance

Raster cache improvements

This release increases the performance of loading images from assets by eliminating copies and reducing Dart garbage collection (GC) pressure. Previously, when loading asset images, the ImageProvider API required the compressed data to be copied multiple times. First, it was copied into the native heap when opening the asset and exposing it to Dart as a typed data array. Then, it was copied a second time when that typed data array was copied to the internal storage of a ui.ImmutableBuffer.

With the addition of ui.ImmutableBuffer.fromAsset, compressed image bytes can be loaded directly into the structure used for decoding. This approach requires changes to the byte loading pipeline of ImageProviders. This process is also faster because it bypasses some additional scheduling overhead required bythe previous method channel-based loader. In particular, image loading time improved by nearly 2x in our microbenchmarks.

Pic courtesy: medium.com

Stability

iOS pointer compression disabled

In the 2.10 stable release, they enabled Dart’s pointer compression optimization on iOS.Dart’s pointer compression works by reserving a large virtual memory region for Dart’s heap. Since the total virtual memory allocation allowed on iOS is less than on other platforms, this large reservation reduces the amount of memory available for use by other components that reserve their own memory, for example, Flutter plugins.

While disabling pointer compression increases the memory consumed by Dart objects, it also increases the memory available for non-Dart parts of a Flutter application, which is more desirable overall.

Apple provides an entitlement that can increase the maximum allowed virtual memory allocation for an application, however this entitlement is only supported on newer iOS versions, and wouldn’t work on devices running versions of iOS that Flutter still supports. When we are able to use this entitlement everywhere, we intend to revisit this optimization.

For more information and to develop mobile apps using Flutter, Hire Flutter Developer from us as we give you a high-quality product by utilizing all the latest tools and advanced technology. E-mail us any clock at – hello@hkinfosoft.com or Skype us: “hkinfosoft”.

To develop Mobile Apps using Flutter, please visit our technology page.

Content Source:

1. medium.com

What’s new in Flutter 3

The recent release of Flutter v3.0 is now stable for macOS and Linux, in addition to Windows!

There are several exciting things coming as part of this release, including the update on Flutter’s support for macOS and Linux, significant performance improvements, mobile and web updates — and much more!

Ready for production on all desktop platforms

Linux and macOS have reached stable and include the following features:

Cascading menus and support for the macOS system menu bar

You can now create platform-rendered menu bars on macOS using the PlatformMenuBar widget, which supports the insertion of platform-only menus, and control over what appears in the macOS application menus.

Full support for international text input on all desktop platforms

International text input, including for languages that make use of text input method editors (IMEs) such as Chinese, Japanese, and Korean is fully-supported on all three desktop platforms, including third-party input methods such as Sogou and Google Japanese Input.

Accessibility on all desktop platforms

Flutter for Windows, macOS, and Linux supports accessibility services such as screen-readers, accessible navigation, and inverted colors.

Universal binaries by default on macOS

As of Flutter 3, Flutter macOS desktop apps are built as universal binaries, with native support for both existing Intel-based Macs and Apple’s latest Apple Silicon devices.

Deprecating Windows 7/8 for development

With this release, it has raised the recommended Windows version for development to Windows 10. While there isn’t any blocking development on older versions (Windows 7, Windows 8, Windows 8.1), these versions are no longer supported by Microsoft and there is limited testing on these releases.

Mobile updates

Updates to mobile platforms include the following:

Foldable phone support

The Flutter 3 release supports foldable mobile devices. In a collaboration spearheaded by Microsoft, new features and widgets allow you to create dynamic and delightful experiences on foldable devices.

As part of this work, MediaQuery now contains a list of DisplayFeatures, describing the bounds and states of device elements like hinges, folds, and cutouts. Additionally, the DisplayFeatureSubScreen widget now positions its child widget without overlapping the bounds of DisplayFeatures, and has already been integrated with the framework’s default dialogs and pop-ups, making Flutter aware and responsive to these elements out of the box.

Pic courtesy: medium.com

iOS variable refresh rate support

Flutter now supports variable refresh rate on iOS devices with ProMotion displays, including iPhone 13 Pro and iPad Pro. On these devices, Flutter apps can render at refresh rates reaching 120 hz, which were previously limited to 60 hz. This results in a smoother experience during fast animations such as scrolling. See flutter.dev/go/variable-refresh-rate for more details.

Gradle version update

If you create a new project with the Flutter tool, you might notice that the generated files now use the latest versions of the Gradle and Android Gradle plugins. For existing projects, you need to manually bump the versions to 7.4 for Gradle, and 7.1.2 for the Android Gradle plugin.

Web updates

Updates for web apps include the following:

Image decoding

Flutter web now automatically detects and uses the ImageDecoder API in browsers that support it. As of today, most Chromium-based browsers (Chrome, Edge, Opera, Samsung Browser, and more) have added this API.

The new API decodes images asynchronously off the main thread using the browser’s built-in image codecs. This speeds up image decoding by 2x, and it never blocks the main thread, removing all jank that was previously caused by images.

Web app lifecycles

The new lifecycle API for Flutter web apps gives you the flexibility to control the bootstrap process of your Flutter app from the hosting HTML page, and helps Lighthouse analyze the performance of your app. This applies to many use-cases, including the following frequently requested scenarios:

A splash screen.
A loading indicator.
A plain HTML interactive landing page displayed before the Flutter app.

Tooling updates

Updates to Flutter and Dart tooling include:

Updated lint package

Version 2.0 of the lint packages have been released:

Flutter: https://pub.dev/packages/flutter_lints/versions/2.0.0
Dart: https://pub.dev/packages/lints/versions/2.0.0

Apps generated in Flutter 3 with flutter create automatically enable the v2.0 sets of lints. Existing apps, packages, and plugins are encouraged to migrate to v2.0 to follow the latest and greatest best practices in the Flutter world, by running flutter pub upgrade –major-versions flutter_lints.

Most of the newly added lint warnings in v2 come with automated fixes. So, after upgrading to the latest package version in your app’s pubspec.yaml file, you can run dart fix —-apply over your code base to fix most lint warnings automatically (some warnings still require some manual work). Apps, packages, or plugins that aren’t using package:flutter_lints yet can migrate by following the migration guide.

Performance improvements

Thanks to open source contributor knopp, partial repaint has been enabled on Android devices that support it. In our local testing this change cut average, 90th percentile, and 99th percentile frame rasterization times on the backdrop_filter_perf benchmark on a Pixel 4 XL device by 5x. Partial repaint when there is a single rectangular dirty region is now enabled on both iOS and newer Android devices.

It has further improved the performance of opacity animations in simple cases. In particular, when an Opacity widget contains only a single rendering primitive, the saveLayer method that is usually invoked by Opacity is omitted. In a benchmark constructed to measure the benefits of this optimization, rasterization time for this case improved by an order of magnitude.

More exciting updates

Other updates to the Flutter ecosystem include the following:

Material 3

Flutter 3 supports Material Design 3, the next generation of Material Design. Flutter 3 provides opt-in support for Material 3; this includes Material You features like dynamic color, an updated color system and typography, updates to many components, and new visual effects introduced in Android 12 like a new touch ripple design and a stretch overscroll effect. Try the Material 3 features in the new Take your Flutter app from Boring to Beautiful codelab.

For more information and to develop mobile apps using Flutter, Hire Flutter Developer from us as we give you a high-quality product by utilizing all the latest tools and advanced technology. E-mail us any clock at – hello@hkinfosoft.com or Skype us: “hkinfosoft”.

To develop Mobile Apps using Flutter, please visit our technology page.

Content Source:

1. medium.com

What’s new in Flutter 2.10

We can’t believe it’s time again for a Flutter 2.10 stable release!

There are several exciting things to announce as part of this release, including a big update on Flutter’s support for Windows, several significant performance improvements, new support for icons and colors in the framework, and some tooling improvements. In addition, we’ve got some updates on the removal of the dev channel, reduction in support for older versions of iOS, and a short list of breaking changes. Let’s get to it!

Ready for production apps on Windows

First and foremost, the Flutter 2.10 release brings with it the stable release of Windows support. You no longer need to flip a flag to get the functionality that produces Windows apps on the stable channel of Flutter — now it’s available by default!

Of course, we did a lot more than just flip a flag. This release includes extensive improvements for text handling, keyboard handling, and keyboard shortcuts, as well as new integrations directly into Windows, with support for command-line arguments, globalized text entry, and accessibility.

For much more on the Windows stable launch, see the Announcing Flutter for Windows blog post, which describes the architecture of Flutter on Windows that allows for deep integration and gives you a sense of just how many Flutter packages and plugins already support Windows. You can also see some examples of what our tooling and app partners are doing with Flutter on Windows!

Performance improvements

This release of Flutter includes initial support for dirty region management provided by Flutter community member knopp. He’s enabled partial repaints for a single dirty region on iOS/Metal. This change reduced 90th and 99th percentile rasterization times on a few benchmarks by an order of magnitude, and reduced GPU utilization on these benchmarks from more than 90% to less than 10%.

Pic courtesy: medium.com

We expect to bring the benefits of partial repaints to other platforms in future releases.

In the Flutter 2.8 release, we landed our own internal picture recording format. Now in Flutter 2.10, we’ve started building optimizations with it. As an example, one common case of opacity layers is now implemented much more efficiently. Even in the worst case, frame raster times in our benchmarks fell to under a third of their previous value.

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We expect this optimization to expand to cover more cases as we continue developing the picture recording format.

In profile and release modes, Dart code is compiled ahead of time to native machine code. The key to the efficiency and small size of this code is a whole program type flow analysis that unlocks many compiler optimizations and aggressive tree-shaking. However, as the type flow analysis must cover the whole program, it can be somewhat expensive. This release includes a faster implementation of type flow analysis. Overall build time for the Flutter app in our benchmarks fell by ~10%.

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As always, performance enhancements, reduced memory usage, and reduced latency are a priority for the Flutter team. Look forward to further improvements in future releases.

iOS updates

In addition to performance improvements, we’ve also added some platform-specific features and enhancements. One new enhancement is smoother keyboard animations in iOS from luckysmg, which is provided automatically to your app without you having to do a thing.

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We’ve also improved the stability of the camera plugin for iOS by fixing a few edge case crashes.

Finally, 64-bit iOS architectures get a new feature to reduce memory usage: compressed pointers.

A 64-bit architecture represents pointers as a 8-byte data structure. When you have a lot of objects, the space taken up by the pointers themselves adds to the overall memory usage of your app, especially if you have larger, more complicated apps that have more GC churn. However, your iOS app is very unlikely to have enough objects to require a significant portion of even the 32-bit address space (2 billion objects), let alone the enormity of the 64-bit address space (9 million billion objects).

Compressed pointers were provided in Dart 2.15 and in this release of Flutter, we use them to reduce the memory usage for 64-bit iOS apps. You can check out the Dart 2.15 blog post for details.

And while you’re reading Dart blog posts, don’t forget to check out the Dart 2.16 announcement for updates on supporting Flutter for Windows with package platform tagging and a new search experience on pub.dev.

Android updates

This release contains a number of improvements for Android as well. By default, when you create a new app, Flutter defaults to support the latest version of Android, version 12 (API level 31). Also, in this release, we’ve enabled multidex support automatically. If your app supports Android SDK versions below 21, and it exceeds the 64K method limit, simply pass the –multidex flag to flutter build appbundle or flutter build apk and your app will support multidex.

And last but not least, we listened to your feedback that Gradle error messages can be intimidating. For this reason, the Flutter tool now suggests resolution steps to common issues. For example, if you add a plugin to your app that requires you to increase the minimum supported Android SDK version, you now see a “Flutter Fix” suggestion in the logs.

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We continue to add more suggestions to common error messages, and would love to get your feedback on other error messages where this treatment would be useful.

Web updates

This release contains some improvements on the web as well. For example, in previous releases, when scrolling to the edge of a multiline TextField on the web, it wouldn’t scroll properly. This release introduces edge scrolling for text selection: when the selection moves outside of the text field, the field scrolls to view the scroll extent. This new behavior is available for both web and desktop apps.

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In addition, this release of Flutter includes another notable improvement in the web. We’re always looking to reduce the overhead of our mapping of Flutter to the web. In previous versions, every time we wanted to bring a native HTML widget into your Flutter app, we needed an overlay as part of our platform view support for the web. Each one of these overlays enables custom painting but represents a certain amount of overhead. If you have a large number of native HTML widgets in your app, such as links, that adds up to a lot of overhead. With this release, we’ve created a new “non-painting platform view” for the web that essentially removes that overhead. And we’ve taken advantage of this optimization in the Link widget, which means if you have many links in your Flutter web app, they no longer represent any significant overhead at all. We’ll be applying this optimization to other widgets over time.

For more information and to develop mobile apps using Flutter, Hire Flutter Developer from us as we give you a high-quality product by utilizing all the latest tools and advanced technology. E-mail us any clock at – hello@hkinfosoft.com or Skype us: “hkinfosoft”.

To develop Mobile Apps using Flutter, please visit our technology page.

Content Source:

1. medium.com

What’s new in Flutter 2.8

Flutter aims to change how apps are built. It unites mobile, web, desktop, and embedded development into a single toolkit: letting developers focus first on what they want to build, rather than which platforms they want to target; offering a high-performance, high-productivity framework that shortens the inner loop for developers; and enabling one codebase to target multiple platforms and form factors.

New features and improvements: faster and more productive

One of the major areas of focus for this release is mobile performance. Ideally great performance would come for free, but in practice any complex app needs optimization to make sure it uses the underlying hardware and libraries well. That includes startup performance, which can be constrained by network bandwidth or other initialization costs; memory usage, particularly on memory-constrained devices; and graphics rendering. We’ve been using some of our experiences with large Google apps like Google Pay to invest both in making Flutter itself more performant, and in giving you better tooling to guide profiling and optimization of your own app. Your apps should start faster and use less memory just by upgrading to Flutter 2.8.

The latest update makes it easier than ever to connect apps to back-end services, such as Firebase and Google Cloud. It adds production-quality support for Google Ads and major upgrades to the camera and embedded web plugins. The release also includes Dart 2.15, which adds major improvements to concurrency, new language features like constructor tearoffs and enhanced enumerations, and optimizations that deliver a 10% reduction in memory utilization.

With the new developer productivity enhancements to Flutter, an app can support sign-in to multiple authentication services with just a single drop-in widget.
Pic courtesy: medium.com

Another big theme of investment in this release that you’ll see us carry forward into future releases is further improving developer productivity. With features like stateful hot reload, we’ve always focused on creating a tight inner loop for developers. We’re now starting to explore some higher-level abstractions that make it easier for developers to get running faster. For example, in this release we’re adding a sign-in widget that uses Firebase to handle authentication. With this widget, you don’t have to worry about all the edge cases of sign-in, such as two-factor authentication or reset password user flows, nor about the complexities of supporting Google, Apple, Twitter, or Facebook as an auth provider. Features like this, building on the core foundations of Flutter, have the potential to transform how developers build apps, combining the development speed of low-code solutions with the flexibility and power of a full UI framework.

Both Flutter 2.8 and Dart 2.15 are available now, and should be an easy upgrade for existing apps running the previous version. For greater detail, we have a technical blog post covering the enhancements in each of Dart and Flutter.

Casual game development with Flame

For most developers, Flutter is an app framework. But there’s also a growing ecosystem around casual game development, taking advantage of the hardware-accelerated graphics support provided by Flutter.

Today, we are thrilled to celebrate the 1.0 release of Flame, a modular 2D game engine built on top of Flutter. Flame provides what you need to build games quickly: as well as a game loop, it also includes core primitives such as a component system, animated sprites and images, collision detection, a world camera, an effects system, and gesture and input support.

Flame is modular and can also be extended with packages that offer integrations to other libraries, for instance Rive (for animations), audioplayers (for music and sound effects), Forge2D (a Box2D-style physics engine), Tiled (tile maps editor), Fire Atlas (a sprite sheet and animation editor). Together, Flame and the broader ecosystem offer a strong set of services for a casual or 2D game developer.

Tomb Toad, Gravity Runner and Bonfire: three examples of games built with Flame.
Pic courtesy: medium.com

Flame is created by Blue Fire, a group of contributors focusing on creating open source packages and plugins for Flutter and Dart. We’re delighted to partner with them and encourage you to check out Flame if you’re interested in game development.

Flutter’s continued momentum

We’re amazed to see how fast Flutter continues to grow, with a flourishing ecosystem of apps and tools that build on top of the core framework. At this year’s Google I/O event, we noted that there were already over 200,000 apps built with Flutter in the Play Store. In just over six months since that event, the number of Flutter apps has nearly doubled, with more than 375,000 Flutter apps now in the Play Store.

Flutter supports Android, iOS, iPadOS, web, Windows, macOS and Linux: so you don’t have to rewrite your app just to target a different device or form factor.
Pic courtesy: medium.com

Flutter isn’t just used on Android, of course. According to independent mobile analyst firm AppAnnie, apps using Flutter on iOS include top brands and apps including BMW, eBay, WeChat, SHEIN, Philips Hue, Norton, trip.com and Greggs. On the web, Flutter is finding a home for app experiences, benefitting design tools like FlutterFlow and Rive. On desktop, the Ubuntu engineering team continues to build a variety of new experiences with Flutter, including a new installer and firmware updater. Even games like PUBG are finding that Flutter is a great fit for UI screens.

Ecosystems take a long time to build, but Flutter is now the most popular multi-platform toolkit, as measured independently by Statista, JetBrains, SlashData, and Stack Overflow. We don’t take that for granted, but the growth of Flutter’s popularity leads to an ever broader ecosystem of packages and tools that support it.

For more information and to develop mobile apps using Flutter, Hire Flutter Developer from us as we give you a high-quality product by utilizing all the latest tools and advanced technology. E-mail us any clock at – hello@hkinfosoft.com or Skype us: “hkinfosoft”.

To develop Mobile Apps using Flutter, please visit our technology page.

Content Source:

1. medium.com

Announcing XD to Flutter v2.0!

Flutter is Google’s open-source UI toolkit for building beautiful apps for mobile, desktop, web, and embedded devices from a single codebase. Over the last couple of years, it has become the leading choice for developers who want to build apps for multiple platforms; but designers need a visual tool for prototyping and creating Flutter UI, rather than handcrafting Dart source code. Enter XD to Flutter!

It’s been almost a year since the first preview release of the plugin, and we’ve continued to refine and improve it with a handful of minor updates, a major v1.0 launch last summer, and now a v2.0 release to match with the launch of Flutter 2!

Wait, what is XD to Flutter?

The name probably gives it away, but the XD to Flutter plugin is a powerful, easy-to-use tool to export your stunning Adobe XD designs into clean, functional code for Flutter. You can copy code for specific visual elements from your design, export reusable widgets, or even entire views.

That means that, with the XD to Flutter plugin, you can get your designs running on virtually any device with the click of a button. It’s not going to code your whole app for you, but it’ll give you a head start.

XD to Flutter is built by gskinner in partnership with Adobe, and is published as a plugin for Adobe XD itself, so you can use it with any existing Adobe XD design you’re building.

Awesome! So what’s new?

The initial release of XD to Flutter had great support for outputting all the different visual elements in a design — vector graphics, images, rich text, background blurs, blend modes, shadows, and similar — but the result could be static and inflexible.

While it was handy for grabbing an icon or text style, we wanted it to do more! XD empowers designers to create dynamic UIs, with tools like responsive layout, scrollable areas, stacks, and grids; we want the plugin to support every one of those capabilities, and with v2.0 we’ve made a lot of progress.

Responsive Resize

XD to Flutter supports the responsive layout features of XD, which lets you “pin” elements within their enclosing parent and precisely control how they resize.

Responsive design in Adobe XD
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Responsive resize in Flutter
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This is achieved in Flutter by using a custom Pinned layout widget in the open-source adobe_xd package that developers can leverage directly in their projects.

Pinned widget code example
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Stacks & Scroll Groups

“Stacks” and Scroll Groups provide new ways to lay out content on-screen dynamically in Adobe XD. Stacks in XD let you arrange a bunch of different elements in a horizontal or vertical list, with varying spacing between them; they are more similar to a Flex widget in Flutter than their namesake Stack widget.

Scroll Groups predictably let you define an area to scroll a larger group of content vertically or horizontally, right inside your design.

XD to Flutter v2.0 supports both of these features, converting them into common Flutter widgets (Column, Row, and SingleChildScrollView). You can even put a stack into a scroll group to easily create a scrolling list of items.

Stacks & Scroll Groups in XD (left) and Flutter (right)
Pic courtesy: medium.com

Padding & Background Elements

Another new feature is background elements, which let you designate a visual element as the background for a group. This can be paired with padding to space the background’s edges from the content.

The Flutter export uses a Stack widget to layer the background element behind the content, which is placed into a Padding widget.

Padding & Background in XD (left) and Flutter (right)
Pic courtesy: medium.com

Flutter 2 & null safety

The layout features described above enable much more responsive UI, complimenting Flutter 2’s increased support for form factors like desktop and web.

Flutter 2 also introduces sound null safety — a language feature that helps developers catch nullability issues before they cause problems in apps. XD to Flutter v2.0 includes a new setting to “Export Null Safe Code”, ensuring that the generated code is future-ready.

“Export Null Safe Code” setting and output
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Sounds great! How do we get started?

Whether you’re using it to copy the code for a tricky gradient, or to export fully responsive, parameterized, interactive widgets, it’s simple to join the thousands of creative professionals that are already using the XD to Flutter plugin.

You can install it by selecting “Browse Plugins…” from Adobe XD’s “Plugin” menu and searching for “Flutter” (strangely, searching for “XD to Flutter” doesn’t work),

Pic courtesy: medium.com

Once you have it installed, open the XD to Flutter panel from the plugins panel, and tap the “Need help?” link to check out the plugin documentation.

Flutter 2 is an exciting step forward for the framework, with a focus on building beautiful apps that run virtually anywhere. At gskinner, we’re thrilled to be working with Adobe and Google to ensure that XD to Flutter continues to make the process of faithfully translating a delightful design to a working product even easier.

Stay tuned for more exciting updates to the plugin soon!

For more information and to develop mobile apps using Flutter, Hire Flutter Developer from us as we give you a high-quality product by utilizing all the latest tools and advanced technology. E-mail us any clock at – hello@hkinfosoft.com or Skype us: “hkinfosoft”. To develop Mobile Apps using Flutter, please visit our technology page.

Content Source:

1. medium.com

What’s new in Flutter 2

Web

As of today, Flutter’s web support has transitioned from beta to the stable channel. With this initial stable release, Flutter pushes reusability of code to another level with the support of the web platform. So now when you create a Flutter app in stable, web is just another device target for your app.

By leveraging the web platform’s many strengths, Flutter built a foundation for building rich interactive web applications. We primarily focused on performance and improvements to our rendering fidelity. In addition to our HTML renderer, we added a new CanvasKit-based renderer. We’ve also added web-specific features, such as a Link widget, to make sure your app running in the browser feels like a web app.

Find more details about this stable release in Flutter’s web support blog post.

Desktop

In this release, we’re pleased to announce that Flutter’s desktop support is available in the stable channel under an early release flag. What this means is that we’re ready for you to give it a try as a deployment target for your Flutter apps: you can think of it as a “beta snapshot” that previews the final stable release coming later this year.

To bring Flutter desktop to this degree of quality, there have been improvements both big and small, starting with working to ensure that text editing operates like the native experience on each of the supported platforms, including foundational features like text selection pivot points and being able to stop propagation of a keyboard event once it’s been handled. On the mouse input side, dragging with a high precision pointing device now starts immediately instead of waiting for the lag needed when handling touch input. Also, a built-in context menu has been added to the TextField and TextFormField widgets for Material and Cupertino design languages. Finally, grab handles have been added to the ReorderableListView widget.

The ReorderableListView now has grab handles for easy drag ’n’ drop with a mouse Pic courtesy: medium.com

The ReorderableListView now has grab handles for easy drag ‘n’ drop with a mouse
Pic courtesy: medium.comThe ReorderableListView was always good at moving items around with very little effort on your part as a developer, but it required the user to initiate a drag using a long-press. That made sense on a mobile device, but few desktop users would think to long-press on an item with their mouse to move it around, so this release includes a grab handle suitable for mouse or touch input. Another improvement for platform-idiomatic functionality is an updated scrollbar that shows up correctly for the desktop form-factor.

This release includes an updated Scrollbar widget that works great in a desktop environment Pic courtesy: medium.com

This release includes an updated Scrollbar widget that works great in a desktop environment
Pic courtesy: medium.comThe Scrollbar widget has been updated to provide the interactive features that are expected on the desktop, including the ability to drag the thumb, click on the track to page up and down, and to show a track when the mouse hovers over any part of the scrollbar. Furthermore, since the Scrollbar is themeable using the new ScrollbarTheme class, you can style it to match your app’s look and feel.

For additional desktop-specific functionality, this release also enables command-line argument handling for Flutter apps so that simple things like a double-click on a data file in the Windows File Explorer can be used to open the file in your app. We’ve also worked hard to make resizing much smoother for both Windows and macOS, and to enable IME (Input Method Editors) for international users.

Flutter desktop now supports intuitive IME input
Pic courtesy: medium.com

In addition, we have provided updated docs on what you need to do to begin preparing your desktop app for deployment to the appropriate OS-specific stores. Give them a try and please provide feedback if we’ve missed anything.

When it comes to trying the beta for Flutter desktop, you can access it by switching to the beta channel as expected as well as setting the config flags for the platforms you’re targeting according to the directions on flutter.dev. In addition, we’ve also made a snapshot of the beta bits available on the stable channel. If you use ‘flutter config’ to enable one of the desktop config settings (for example, enable-macos-desktop), then you can try out the beta functionality of the desktop support w/o having to go through the lengthy process of moving to the beta channel and pulling down all the latest beta of the Flutter SDK, building the tools, etc. This is great for giving it a try or using the desktop support as a simple “Flutter Emulator.”

However, if you choose to stay on the stable channel to access the desktop beta, you won’t get new features or bug fixes as quickly as switching to the beta or dev channels. So, if you’re actively targeting Windows, macOS, or Linux, we recommend switching to a channel that provides updates more quickly.

As we approach our first full production-quality release of Flutter desktop, we know we have more to do, including support for integration with native top-level menus, text editing that feels more like the experience of the individual platforms, and accessibility support, as well as general bug fixes and performance enhancements. If there are other things you think need doing before the desktop moves to production quality, please be sure to provide your feedback.

Google Mobile Ads to Beta

In addition to Flutter desktop moving to beta, today we’re excited to announce an open beta for Google Mobile Ads SDK for Flutter. This is a brand new plugin that provides inline banner and native ads, in addition to the existing overlay formats (overlay banner, interstitial, and rewarded video ads). This plugin unifies support for Ad Manager and Admob, so no matter what size publisher you are, this plugin can be tailored to your scenarios.

Pic courtesy: medium.com

We’ve been piloting this plugin with some of our early customers in a private beta program, and many of them have successfully launched their apps with these new formats. For example, Sua Musica (largest Latin American music platform for independent artists with more than 15k verified artists and 10M MAU) launched their new Flutter app with the Google Mobile Ads SDK for Flutter plugin. They saw an 350% increase on Impressions with a 43% increase on CTR and 13% increase on eCPM.

This plugin is available for you to use today. As part of Flutter Engage, Andrew Brogdon and Zoey Fan presented a session on “Monetizing apps with Flutter” (available on the Flutter Engage site), where they talk about monetization strategies for apps built with Flutter, and how you can load ads in your Flutter app. Moreover, we created a new Ads page on flutter.dev where you can find all helpful resources such as the plugin implementation guide, the inline banner and native ads codelab, and the overlay banner, interstitial and rewarded video ads codelab. Please be sure to check them out!

For more information and to develop mobile apps using Flutter, Hire Flutter Developer from us as we give you a high-quality product by utilizing all the latest tools and advanced technology. E-mail us any clock at – hello@hkinfosoft.com or Skype us: “hkinfosoft”. To develop Mobile Apps using Flutter, please visit our technology page.

Content Source:

1. medium.com

Flutter Windows Alpha is just announced

Windows remains a popular choice for desktop and laptop devices, with Microsoft reporting over one billion active devices running Windows 10. Our own statistics show that over half of all Flutter developers use Windows, so it’s a natural target for Flutter. Native desktop support opens up a variety of exciting possibilities for Flutter, including improved developer tooling, reduced friction for new users, and of course apps that can reach any device a user might have from a single codebase.

Adding Windows to Flutter

As described in our architectural overview, Flutter is a cross-platform UI toolkit that is designed to allow code reuse across operating systems such as iOS and Android, while also allowing applications to interface directly with underlying platform services. The goal is to enable developers to deliver high-performance apps that feel natural on different platforms, embracing differences where they exist while sharing as much code as possible. At the core of Flutter is the engine, which supports the primitives necessary to support all Flutter applications. The engine is responsible for rasterizing composited scenes whenever a new frame needs to be painted. It provides the low-level implementation of Flutter’s core API, including graphics, text layout, file and network I/O, accessibility support, plugin architecture, and a Dart runtime and compile toolchain.

Each new platform we add to Flutter expands the core framework with new services to enable it to shine on that platform. We started on Android and iOS with Material Design as well as a touch-based, mobile-centric user interface that is designed to be pixel-perfect on both mobile platforms. Adding support for desktop form factors with web, Windows, macOS, and Linux brings a whole new set of services, including robust support for keyboards, mice, mouse wheels and controllers on the input side as well as widgets that adapt or even work best at the larger screen sizes that come with web and desktop apps.

Furthermore, each new platform doesn’t just influence the Flutter framework and engine, but a lot of other things as well:

• Toolchain updates: adding a new target to the CLI and IDE tools (in this case Windows)
• Shell: support for handling input from Windows via WM_* messages and output via ANGLE, which uses Skia to render at native speed to an underlying DirectX surface
• Runner: every project gets a shell application for the supported targets. For Windows, it’s a Win32/C++ program that loads your Flutter code and executes it at runtime. It’s a good place to add native code to your app if you need it.
• Plugins: A plugin is a mixture of Dart code and native code for each of the platforms that the plugin supports. That native code needs to be added for each plugin that is compiled into your Flutter app on Windows.

This alpha release offers a solid foundation that we’ll stabilize over the coming months. With support for Windows 7 and above, we hope this gives adventurous developers something to get started with.

Getting started with Flutter for Windows

Get started by installing the Flutter SDK according to the Windows install instructions. To target Windows desktop, you first need to install the tooling described in the desktop docs. By default, Flutter assumes that you’re building production software and isn’t configured to develop Windows apps. However, that’s easily fixed from the command line:

$ flutter channel dev
$ flutter upgrade
$ flutter config --enable-windows-desktop

The first command sets Flutter to use the experimental-quality “dev” channel (instead of the “stable” channel, which is the default). This allows you to use platform support that’s still in alpha, like Windows. The second command pulls down the latest bits on that channel. The third command enables Windows app development on your PC.

Once you’ve set it up, every time you create a new Flutter app, using the extension support for either Android Studio or Visual Studio Code, or from the command line, it creates a windows subfolder.

Pic courtesy: medium.com

If you’re curious, running the default app on Windows looks like the following:

Pic courtesy: medium.com

And finally, once you’ve created your app, building it creates a release-mode, native EXE file as well as the necessary supporting DLLs. At that point, if you want to experiment with running your new Windows app on any Windows 10 machine, even those that don’t have Flutter installed, you can follow the steps to zip up the necessary files and go.

Plugins for Windows

Even though we’ve just reached the alpha release, the Flutter community has already been working on plugins for Windows. Here are a few:

• url_launcher: launch URLs in the browser from your app
• path_provider: find the path to special directions on the user’s machine like Documents or temp
• shared_preferences: keep user preferences serialized on disk between sessions of your app
• biometric_storage: storage encrypted by biometrics
• flutter_audio_desktop: play audio from your desktop apps

The benefit of using these plugins is that most of them also support other Flutter platforms, which enables you to target your apps at Android, iOS, web, etc. as well as Windows. Furthermore, while about one-third of the available packages on pub.dev (the package manager for Dart and Flutter) are plugins with platform-specific code, most are not. For instance, many of the highest quality and most used packages are part of the Flutter Favorite program and most of them work on Windows. If you’d like to see the full list of packages that run on Windows, you can run this query on pub.dev.

Interop with Windows

If you’d like to build your own plugins for Windows, you can. Once you’re on the dev channel and you have Windows enabled for your machine, you can get started with the following command:

$ flutter create --template plugin --platforms windows hello_plugin

At that point, you’ll be able to add your Flutter code to the lib subfolder and your Windows code to the windows subfolder in your plugin project. You’ll communicate between the two stacks using Platform Channels, which is essentially message passing between your Dart and C++ code. For a well crafted example of this, see the url_launcher implementation.

However, Platform Channels are not your only option for interop with Windows. If you like, you can use the Dart FFI (Foreign Function Interface) to load libraries and call into C-style APIs, such as the Win32 API. Unlike url_launcher, which uses Platform Channels, the path_provider plugin was implemented using FFI, as you can see in the GitHub repo. Instead of going back and forth between Dart and C++, FFI allows you to write code to import the API that you want directly. For example, here’s the code for calling the MessageBox API:

typedef MessageBoxNative = Int32 Function(
  IntPtr hWnd, 
  Pointer<Utf16> lpText, 
  Pointer<Utf16> lpCaption,
  Int32 uType
);
typedef MessageBoxDart = int Function(
  int hWnd, 
  Pointer<Utf16> lpText, 
  Pointer<Utf16> lpCaption, 
  int uType
);
final user32 = DynamicLibrary.open('user32.dll');
final win32MessageBox =
  user32.lookupFunction<MessageBoxNative, MessageBoxDart>('MessageBoxW');
void showMessageBox(String message, String caption) =>
  win32MessageBox(
    0, // No owner window
    Utf16.toUtf16(message), // Message
    Utf16.toUtf16(caption), // Window title
    0 // OK button only
  );
...
// call just like any other Dart function
showMessageBox('Test Message', 'Window Caption');

This code doesn’t incur the overhead of transitioning between two threads like Platform Channels. FFI includes support for many different kinds of APIs, including Win32, WinRT, and COM. But before you run off and wrap the entire C-based Windows API, please check out the win32 plugin, which is already well on its way to doing just that. In fact, the path_provider plugin was itself implemented using the win32 plugin.

For more information and to develop mobile apps using Flutter, Hire Flutter Developer from us as we give you a high-quality product by utilizing all the latest tools and advanced technology. E-mail us any clock at – hello@hkinfosoft.com or Skype us: “hkinfosoft”. To develop Mobile Apps using Flutter, please visit our technology page.

Content Source:

1. medium.com

What’s new in Flutter 1.2

Ongoing vision with Flutter is to provide a portable toolkit for building stunning experiences wherever you might want to paint pixels on the screen. With every release, we continue to push towards ensuring that Flutter is fast, beautiful, productive and open for every platform we support. In Flutter 1.20, which is released today to our stable channel, Flutter has improvements for every one of these four pillars.

Autofill for mobile text fields

One of the #1 most requested Flutter features for a while has been to support the underlying Android and iOS support for text autofill in Flutter programs. With PR 52126, we’re pleased to say that the wait is over — no more asking your users to re-enter data that the OS has already gathered for them.

Autofill in action
Pic courtesy: medium.com

You’ll be pleased to hear that we’ve already started adding this functionality for the web, as well.

A new widget for common patterns of interaction

This release introduces a new widget, the InteractiveViewer. The InteractiveViewer is designed for building common kinds of interactivity into your app, like pan, zoom, and drag ‘n’ drop, even in the face of resizing, which this simple Go board sample demonstrates.

Zooming, panning, resizing, dragging and dropping with the InteractiveViewer
Pic courtesy: medium.com

To see how to integrate the InteractiveViewer into your own app, check out the API documentation where you can play with it in DartPad. Also, if you’d like to hear about how the InteractiveViewer was designed and developed, you can see a presentation by the author for Chicago Flutter on YouTube.

If you’re interested in adding the kind of interactivity to your Flutter app that InteractiveViewer enables, then you’ll probably also be happy to hear that we’ve added more capabilities to drag ‘n’ drop in this release. Specifically, if you’d like to know precisely where the drop happened on the target widget (it’s always been available to the Draggable object itself), now you can get that information with the DragTarget onAcceptDetails method.

Pic courtesy: medium.com

New drag target accept details in action

Check out this sample for the details and look forward to a future release that will make this information available during the drag as well so that the DragTarget can more easily provide visual updates during a drag operation.

Updated Material Slider, RangeSlider, TimePicker, and DatePicker

In addition to new widgets, this release includes a number of updated widgets to match the latest Material guidelines. These include Slider and RangeSlider. For more information, see What’s new with the Slider widget?

Pic courtesy: medium.com

updated Material Slider

Pic courtesy: medium.com

DatePicker has been updated to include a new compact design as well as support for date ranges.

Pic courtesy: medium.com

And finally, TimePicker has a completely new style.

Pic courtesy: medium.com

If you’d like to play around with it, here’s a fun web demo built with Flutter.

Responsive Licenses page

Another update this release is the new responsive licenses page available from the AboutDialog.

Pic courtesy: medium.com

PR 57588, from community contributor TonicArtos, is not only updated to match Material guidelines, making it just plain nice to look at, but it’s easier to navigate and designed to work as well on tablets and desktops as on phones. Thanks, TonicArtos! Since every Flutter app should be showing the licenses for the packages they’re using, you just made every Flutter app better!

New pubspec.yaml format required for publishing plugins

Of course, Flutter isn’t just the widgets; it’s also the tooling and this release comes with too many updates to mention. However, here are some of the highlights.

First and foremost, a public service announcement: if you’re a Flutter plugin author, then the legacy pubspec.yaml format is no longer supported for publishing plugins. If you try, you’ll get the following error message when executing pub publish:

Pic courtesy: medium.com

The old format did not support specifying which platforms your plugins support, and has been deprecated since Flutter 1.12. The new pubspec.yaml format is now required for publishing new or updated plugins.

For clients of plugins, the tools still understand the old pubspec format and will for the foreseeable future. All existing plugins on pub.dev using the legacy pubspec.yaml format will continue to work with Flutter apps for the foreseeable future.

Preview of embedded Dart DevTools in Visual Studio Code

The biggest tooling update in this release comes to the Visual Studio Code extension, which provides a preview of a new feature to enable you to bring Dart DevTools screens directly into your coding workspace.

Pic courtesy: medium.com

Preview of Layout Explorer from Dart DevTools embedded into Visual Studio Code

Enable this feature with the new dart.previewEmbeddedDevTools setting. The above screenshot shows the Flutter Widget Inspector embedded directly into Visual Studio Code but with this new setting enabled, you can choose your favorite page embed using the Dart DevTools menu on the status bar.

Pic courtesy: medium.com

This menu allows you to choose which pages to show.

Pic courtesy: medium.com

This feature is still in preview, so let us know if you have any trouble with it.

Updates to network tracking

The latest version of Dart DevTools comes with an updated version of the Network page that enables web socket profiling.

Pic courtesy: medium.com

Timing, status and content type of socket connections on the Network page of Dart DevTools

The Network page now adds timing information to the network calls from your app, along with other information like status and content type. Additional improvements have been made to the details UI to provide an overview of the data in a websocket or http request. We’ve also got more plans for this page to include HTTP request/response bodies and monitoring gRPC traffic.

Updating import statements on file rename

Another new feature for Visual Studio Code is updating imports on rename, which automatically updates import statements when files are moved or renamed.

Pic courtesy: medium.com

moving Dart files in Visual Studio Code updates the import statements

This feature currently only works for single files and not multiple files or folders, but that support is coming soon.

For more information and to develop mobile apps using Flutter, Hire Flutter Developer from us as we give you a high-quality product by utilizing all the latest tools and advanced technology. E-mail us any clock at – hello@hkinfosoft.com or Skype us: “hkinfosoft”. To develop Mobile Apps using Flutter, please visit our technology page.

Content Source:

1. medium.com

Web support for Flutter

In addition to mobile apps, Flutter supports the generation of web content rendered using standards-based web technologies: HTML, CSS and JavaScript. With web support, you can compile existing Flutter code written in Dart into a client experience that can be embedded in the browser and deployed to any web server. You can use all the features of Flutter, and you don’t need a browser plug-in.

pic courtesy : flutter.dev

Adding web support to Flutter involved implementing Flutter’s core drawing layer on top of standard browser APIs, in addition to compiling Dart to JavaScript, instead of the ARM machine code that is used for mobile applications. Using a combination of DOM, Canvas, and CSS, Flutter can provide a portable, high-quality, and performant user experience across modern browsers. We implemented the core drawing layer completely in Dart and used Dart’s optimized JavaScript compiler to compile the Flutter core and framework along with your application into a single, minified source file that can be deployed to any web server.

While traditional web approaches remain a great choice, we envision the web support available in Flutter being valuable in many scenarios. For example:

A connected Progressive Web Application built with Flutter

Web support for Flutter enables existing mobile-based applications to be packaged as a PWA for reach to a broader variety of devices, or to provide a companion web experience to an existing app.

Embedded interactive content

Flutter provides a powerful environment for creating rich, data-centric components that can be easily hosted within an existing web page. Whether for data visualization, an online tool like a car configurator, or an embedded chart, Flutter can provide a productive development approach for embedded web content.

Embedding dynamic content in a Flutter mobile app

An established way to provide dynamic content updates within an existing mobile application is the use of a web view control, which can load and display information dynamically. The support Flutter now offers for a unified environment for web and mobile content enables you to deploy content online or embedded in an app without rewriting.

Not every HTML scenario is ideally suited for Flutter at this time. For example, text-rich flow-based content such as blog articles benefit from the document-centric model that the web is built around, rather than the app-centric services that a UI framework like Flutter can deliver. However, you can use Flutter to embed interactive experiences into these websites.

Building a web application with Flutter

Requirements

To create a Flutter app with web support, you need the following software:

• Flutter SDK. See the Flutter SDK installation instructions.
• Chrome; debugging a web app requires the Chrome browser.
• Optional: An IDE that supports Flutter. You can install Android Studio, IntelliJ IDEA, or Visual Studio Code and install the Flutter and Dart plugins to enable language support and tools for refactoring, running, debugging, and reloading your web app within an editor. See setting up an editor for more details.

Create a new project with web support

You can use the following steps to create a new project with web support.

Set up

Run the following commands to use the latest version of the Flutter SDK from the beta channel and enable web support:

flutter channel beta
flutter upgrade
flutter config --enable-web

Note: The flutter upgrade command silently fails when origin points to a personal fork. To validate
that origin points to https://github.com/flutter/flutter.git, run the following commands in the root
directory of your local copy of the https://github.com/flutter/flutter repository:

cd <inside local copy of the flutter/flutter repo>
git remote get-url origin
https://github.com/flutter/flutter.git

Once web is enabled, the flutter devices command outputs a Chrome device that opens the Chrome browser with your app running, and a Web Server that provides the URL serving the app.

flutter devices
2 connected device:

Web Server • web-server • web-javascript • Flutter Tools
Chrome • chrome • web-javascript • Google Chrome 81.0.4044.129

After enabling web support, restart your IDE. You should now see Chrome (web) and Web Server (web) in the device pulldown.

Note: You only need to execute flutter config –enable-web once. You can always check the status of your configuration using the no-argument flutter config command.

Create and run

Creating a new project with web support is no different than creating a new Flutter project for other platforms.

Once you’ve configured your environment for web support, you can create and run a web app either in the IDE or from the command line.

IDE

After you’ve configured your environment to support the web, make sure you restart the IDE if it was already running.

Create a new app in your IDE and it automatically creates iOS, Android, and web versions of your app. (And macOS, too, if you’ve enabled desktop support.) From the device pulldown, select Chrome (web) and run your app to see it launch in Chrome.

Command line

To create a new app that includes web support (in addition to mobile support), run the following commands, substituting myapp with the name of your project:

flutter create myapp
cd myapp

To serve your app from localhost in Chrome, enter the following from the top of the package:

flutter run -d chrome

Note: If there aren’t any other connected devices, the -d chrome is optional.

The flutter run command launches the application using the development compiler in a Chrome browser.

Build

Run the following command to generate a release build:

flutter build web

A release build uses dart2js (instead of the development compiler) to produce a single JavaScript file main.dart.js. You can create a release build using release mode (flutter run –release) or by using flutter build web. This populates a build/web directory with built files, including an assets directory, which need to be served together.

For more information, see Build and release a web app.

Add web support to an existing app

To add web support to an existing project, run the following command in a terminal from the root project directory:

flutter create .

For more information and to develop mobile apps using Flutter, Hire Flutter Developer from us as we give you a high-quality product by utilizing all the latest tools and advanced technology. E-mail us any clock at – hello@hkinfosoft.com or Skype us: “hkinfosoft”. To develop Mobile Apps using Flutter, please visit our technology page.

Content Source:

1. flutter.dev