How to restrict the system textScaleFactor and keep both your users and designers happy.
Also a drinking game: every time it says "textScaleFactor", take one shot.
you most likely should never use it, sometimes you just might need to.
Dart does not have eval(), but what do you do when you absolutely need it?
We at Reflectly were part of the Flutter for Web early access preview. Although it's
very early, it looks super promising. This is a short story about our plans to expand
to web and how we're super excited to learn HTML: How To Maintain Less code with Flutter
Almost 6 months ago, I advised you to split long build methods into multiple smaller methods.
And it turns out I was wrong.
You should be splitting your widgets into smaller widgets instead - and there's a good reason why.
Widget tests are fun. At least as long as you don't pump any Image.network widgets. But what if I told you there's a simple way to solve those crashes and continue having that widget testing fun? And no, I'm not as cool as Morpheus is, but I did take some Taekwon-Do lessons back in the day.
Ever had issues with conflicting dependency versions? If not, at some point you're pretty much guaranteed to. You could solve these issues manually. But I bet you have more important things to do. Pub's version constraint solver is much faster than you - so let it do the dirty work instead.
Find out how to test push and pop events by using the WidgetTester APIs and mockito. Learn how to tap things. Be bummed out because awaiting Futures from the framework doesn't work in tests. Also, learn how to say "navigate to details page" in Finnish.
Why does Flutter layout code look so ugly? Deeply nesting brackets, long build methods
and business logic and UI mixed up together... UGH! There must be something deeply wrong
with Flutter's design. Or maybe it's all our fault instead?
Have you ever wondered what's a
Tween? Or what on earth is an interval curve?
How about playing multiple animations at different times or organizing animation code so that
everything is not a big mess? Well, you can stop wondering now.
Learn how to blur some stuff behind any widget with
BackdropFilters, along with
some useful widgets, such as the
Placeholder widget. But most importantly, learn how
you'll never be as good in playing the bass guitar as some 17-year-old boy back in
It's all fun and games until you can't just test everything in production and call it a day. Why?
If it's a production app, you might break something. Better learn how to do environment splits before
stuff gets real and your Friday evening production release is ruined.
Don't read this one. Or at least don't use it as an up to date source for working with JSON in Flutter.
This article became part of the official documentation for Flutter, and so this original
one is outdated. It's only preserved here for
historical ego reasons.
Imagine how many users you lose if you only support mobile screen sizes! Well, in reality, it's probably
not that much. But if you do have an existing Flutter app with some tablet users, it certainly doesn't
hurt to adapt to larger screens than just your old smartphone from that time when using enums in Android
development was considered a bad practice.
Discover how easy and fun form validation in Flutter actually is. Also see what would the Android
equivalent be like - not because it's really needed or anything, but only to have some low effort
filler content in the article. Just like this summary is.
PageView parallax effects are fun little eye candy that can be used for onboarding screens. Here's a
sample on how to do those things in Flutter. The best part is that there's a lot of existing Android page
transition examples and tutorials that can be applied with this page transformer.
This is a short story about how I got the green light to use Flutter on customer projects
really early. Back then, Flutter was still in alpha and only few people even knew what it
was. Not to mention actually using it in production. Needless to say, there was quite a bit
of skepticism in the air.
Applying the knowledge from the previous post, now we learn how to create an entire movie
details UI which has an interesting arc background effect. We also learn how to create rounded
corners, stack widgets on top of each other and organize our code neatly.
An in-depth look on how to implement custom clippers in Flutter and cut
widgets with them. Also an explanation on bezier curves, which I knew nothing
about before writing the article. This was the very first article on
flutter.rocks. Fun fact: I actually didn't sleep after publishing it because I
was afraid of what the reception was going to be.