https://dash-overflow.net/categories/good-to-know/ Recent content in good to know on Dash Overflow Hugo -- gohugo.io en-us Fri, 26 Jun 2020 00:00:00 +0000 https://dash-overflow.net/articles/why_vsync/ Fri, 26 Jun 2020 00:00:00 +0000 https://dash-overflow.net/articles/why_vsync/ If you have used Flutter animations before, you likely came across a parameter named vsync or the mixin SingleTickerProviderStateMixin. But we are rarely using them ourselves. So what do they even do? To answer these questions, we will use a simple animation as an example: A clock For a clock, AnimationController doesn’t seem very useful: This is a perpetual animation. The fact that a controller requires a duration property for the controller feels like it doesn’t fit our use-case. https://dash-overflow.net/articles/factory/ Tue, 26 May 2020 00:00:00 +0000 https://dash-overflow.net/articles/factory/ If you’ve used Dart before, chances are that you’ve heard about the factory keyword. It’s also likely that you’ve seen the keyword used for deserialization like so: class SomeClass { SomeClass({this.property}); factory SomeClass.fromMap(Map<String, Object> map) { return SomeClass( property: map['property'] as int, ); } final int property; } But this code may leave you with an unanswered question: Can’t I use a static method? After all, you could replace the previous code with: