How do I handle Android theme changes properly?

You must add ConfigChanges.UiMode to your MainActivity attribute in the Android project. Without this, the activity will restart instead of handling the theme change event, causing state loss.

Should I use StaticResource or DynamicResource for themes?

Always use DynamicResource if you intend to swap themes at runtime. StaticResource values are resolved once at load time and will not update when the theme dictionary changes.

Can I use CSS for dynamic theme switching in MAUI?

No, while .NET MAUI supports CSS for styling, CSS-based themes cannot be swapped dynamically at runtime. Use ResourceDictionary switching for this requirement.

How do I force a specific theme in code regardless of OS settings?

You can override the system theme by setting Application.Current.UserAppTheme to AppTheme.Dark, AppTheme.Light, or AppTheme.Unspecified.

.NET MAUI Theming

Name: .NET MAUI Theming
Author: davidortinau

bydavidortinau

•

108

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Mobile Development

Implements and manages light and dark mode, dynamic resources, and system theme detection for .NET MAUI applications.

This skill provides specialized guidance for architecting and implementing theme support in .NET MAUI apps, ranging from simple OS-driven light and dark mode toggles using AppThemeBinding to complex branded theme switching via ResourceDictionary management. It addresses critical cross-platform implementation details, such as the required Android configuration changes for seamless UI mode transitions, and ensures developers correctly utilize dynamic resources to prevent frozen styles during runtime theme swaps.

主な機能

01System-level theme preference reading and event handling

02Programmatic theme manipulation via C# and SetAppThemeColor

03108 GitHub stars

04Automatic light and dark mode support using AppThemeBinding

05Dynamic ResourceDictionary switching for custom branded themes

06Correct Android configuration setup for system theme detection

ユースケース

01Implementing a standard OS-responsive light and dark mode setup

02Creating a multi-theme branded app with a custom user-facing theme picker

03Fixing Android theme change issues where the activity restarts unexpectedly

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add davidortinau/maui-skills maui-theming

For use in Claude.ai and ChatGPT

主な機能

01System-level theme preference reading and event handling

02Programmatic theme manipulation via C# and SetAppThemeColor

03108 GitHub stars

04Automatic light and dark mode support using AppThemeBinding

05Dynamic ResourceDictionary switching for custom branded themes

06Correct Android configuration setup for system theme detection

ユースケース

01Implementing a standard OS-responsive light and dark mode setup

02Creating a multi-theme branded app with a custom user-facing theme picker

03Fixing Android theme change issues where the activity restarts unexpectedly

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add davidortinau/maui-skills maui-theming

For use in Claude.ai and ChatGPT