[Android] Implemented UseMaterial3 build property and provided basic M3 styles
#33074
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🚀 Dogfood this PR with:
curl -fsSL https://raw.githubusercontent.com/dotnet/maui/main/eng/scripts/get-maui-pr.sh | bash -s -- 33074Or
iex "& { $(irm https://raw.githubusercontent.com/dotnet/maui/main/eng/scripts/get-maui-pr.ps1) } 33074" |
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Description of Change
This pull request introduces the foundation for Material Design 3 (M3) support in .NET MAUI for Android. The changes allow developers to opt into Material Design 3 via a new MSBuild property, provide runtime detection of the Material version, and add the necessary Android resources and styles for M3. By default, apps continue to use Material Design 2 to maintain backward compatibility.
Material Design 3 opt-in and configuration:
UseMaterial3(default: false) to allow developers to opt into Material Design 3 for Android. Internal build properties are set based on this value, and a build log message informs developers which Material version is active. (Microsoft.Maui.Controls.Common.targets) [1] [2]Microsoft.Maui.RuntimeFeature.IsMaterial3Enabled), which is set during the build process ifUseMaterial3is specified. (Microsoft.Maui.Controls.targets,RuntimeFeature.cs) [1] [2] [3]Runtime and theming support:
MaterialDesignHelperfor runtime detection of Material Design 3 enablement, with caching for performance and a method to retrieve the current Material version. (MaterialDesignHelper.cs)MauiMaterialContextThemeWrapperto dynamically select the correct base theme (Material 2 or Material 3) at runtime using the new helper. (MauiMaterialContextThemeWrapper.cs)Android resource additions for Material Design 3:
colors-material3.xml)styles-material3.xml)Issues Fixed
Fixes #33073