shawn.blais

Shawn has worked as programmer and product designer for over 20 years, shipping several games on Steam and Playstation and dozens of apps on mobile. He has extensive programming experience with Dart, C#, ActionScript, SQL, PHP and Javascript and a deep proficiency with motion graphics and UX design. Shawn is currently the Technical Director for gskinner.

@tree_fortress

Flokk – How we built a Desktop App Using Flutter

Earlier this year Google and Ubuntu approached us with an open brief, to try and create a full-scale desktop application for Linux, macOS, Web, and Windows. The result was Flokk, which we released (and open-sourced) back in July.

In this post, we’re going to dive into some of the challenges we faced, the discoveries we made, and desktop-specific features that we added.

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Flutter: Create Custom App Themes

There is a lot to like about Flutter, but one area I’m sure no one loves, is taming the Material Theme system! With over 65(!) properties, some of which, like TextTheme, break out into 10 more sub-properties is enough to make you go crazy pretty quick.

Who wants to dive in?

Last week we looked at how you can easily implement TextStyling, and this week we’re going to dive into Color Themes. We’ll take a look at a technique that we use to implement custom app-specific themes, while still providing Material ThemeData to the core Flutter components.

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Flutter: sized_context – An easier way to access MediaQuery.size!

After sharing our simplified screen size detection example to reddit last week, we received a great suggestion from the community: the concept would work better as a set of extension methods.

The original thought was to add the methods to MediaQuery, which didn’t seem that appealing because it would still be quite verbose to access. Then we realized we could just use the build context directly, which turned out really nice! So nice, that we’ve gone ahead and created a package for it here: https://pub.dev/packages/sized_context.

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Flutter: Conditional Compilation for Web

One of the big issues with Flutter for Web right now is it’s lack of support for dart.io. This means things like a simple Platform.isAndroid call will cause your web builds to crash on startup. In fact, just including the dart.io package _at all_ will break your app completely.

In cases like this, what is needed is some form of conditional compilation, so we can include the code on some platforms, and exclude it on others.

Some platforms like Unity, have built in platform defines, which let you easily partition sections of code for specific platforms. Unfortunately, this is not so easy to do with Flutter, but it is possible!

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