If you do this, then you are on your way to creating nice reusable custom widgets, that automatically also follows your application’s theme as you change it.Īs an example, say you have a fancy complex composed custom widget, that contains an icon, among other things. Basically they do a fall-through from widget property, to component theme and maybe even ThemeData and its ColorScheme, and lastly maybe even some default built-in behavior. Use the same principle that Flutter’s built-in widgets use for their theming and default style behavior. Are there properties in ThemeData and its component themes that could be applicable to your custom widget as defaults? Also provide direct members to configure your custom widget for those one-off needs when it needs to be different from what you set via the ThemeData properties it uses as its defaults. Consider what color, font and other styles it could use as fitting default built-in behavior. When it comes to custom Widgets you make, you should when possible base their default styles on properties in the theme as well. There are certainly limitations, but always check first what you can do by theming the app and the built-in components it uses, to match your style requirements as close as possible. You can customize a surprising amount of details with ThemeData and all its component themes. When you do this, most of your application’s design will fall into place almost automagically. By doing so, you are using Flutter and its theming capabilities to work for you, and not against you. You should do this by defining an application theme that gets you as close as possible. You should strive to make the built-in widgets in Flutter look as close as you can to the look and design you want them to have in your application. This tweet with 15 slides, offers an intro to the wondrous world of Material 3 ColorScheme. ![]() For more information about the color system, see the Material 3 guide. There are new features that can help with the color design. The color scheme used to be a a lot simpler before Flutter 2.10, the introduction of Material 3 makes it more complex. ![]() The property name for the used ColorScheme in ThemeData is colorScheme. ![]() Flutter’s built-in components use these colors in predefined ways. The ColorScheme class is a data class that holds 27 Color properties. The Flutter ThemeData object defines the look of your application, and to a degree how it behaves. Flutter Theming Guide Intro to Flutter theming by RydMike Home Flutter Theming Guide | RydMike Fluttering Skip to the content.
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