Flutter 1.2: First Feature Update Release

One year after the announcement of the first beta of Flutter, the team returns with the first feature update for Google’s mobile UI framework!

Flutter 1.2 is evidence of how much this framework has grown over the past year. This release focuses on three main areas: the improved stability, performance, and quality of the core framework; the work to polish visual finish and functionality of existing widgets; the new web-based tooling for developers building Flutter applications.

Let’s have a look at the highlights of Flutter 1.2.

As the first feature update for Flutter, the 1.2 release brings some major improvements and important updates that include:

• Improved testing and code infrastructure
• Improved performance and quality of the overall framework
• Broader support for new UI languages
• including support for floating cursor text editing
• Support for a broader set of animation easing functions
• Support for new keyboard events and mouse hover support in preparation for deeper support for desktop-class operating systems
• Support for in-app purchases

Improved Material and Cupertino widget sets

The team has been putting their efforts into improving the Material and Cupertino widget sets. Now developers will have more flexibility when using Material widgets. For Cupertino widgets, they have added support for floating cursor text adding on iOS. This can be triggered by either force pressing the keyboard or by long pressing the spacebar.

Support for Android App Bundles

Flutter 1.2 supports Android App Bundles, a new upload format that includes all the app’s compiled code and resources. This format helps in reducing the app size and enables new features like dynamic delivery for Android apps.

Dart 2.2 SDK becomes available with Flutter 1.2

This release includes the Dart 2.2 SDK. The Dart 2.2 comes with significant performance improvements to make ahead-of-time compilation even faster and a literal language for initializing sets. It also introduces Dart Common Front End (CFE) that parses Dart code, performs type inference, and translates Dart into a lower-level intermediate language.

In addition to the new updates and improvements featured in Flutter 1.2, the team announced the availability of a new web-based suite of programming tools. These tools aim to help Flutter developers debug and analyze apps. You can install these tools alongside the extensions and add-ins for Visual Studio Code and Android Studio. Here are the capabilities they offer:

Widget inspector – Enables visualization and exploration of the tree hierarchy that Flutter uses for rendering.

Timeline view – Helps you diagnose your application at a frame-by-frame level, identifying rendering and computational work that may cause animation ‘jank’ in your apps.

Full source-level debugger – Lets you step through code, set breakpoints and investigate the call stack.

Logging view – Shows activity you log from your application as well as network, framework and garbage collection events.

Check out the official announcement to find out more information about these tools, as well as all the updates featured in Flutter 1.2.

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