To test this, I created a very basic app with a theme that uses some primary, primary dark, and accent color with the colors defined in some res/values/colors.xml like we’re used to. We can tell Android to load a separate file which will override any existing resources, so we could for example change our colorPrimary and marvel at how all buttons, colors, etc will just work as if we had switched the color at compile time. You can achieve dynamically colored themes with some libraries that will either use their own View implementations or some amount of workarounds to get it working good enough but not completely.Īndroid 11 added the option to include your own Resource Loaders and with that we finally have a way to dynamically alter our apps themes dynamically. You can override some values, but you always need to know those colors at compile time and create more themes or theme overlays. In the dependencies section, make sure the material library is 1.5.Android Theming works great once you really get into it, but one of the biggest limitations is that you can’t modify those themes at runtime. It is one of the sample apps from our Android Basics in Kotlin training course.īefore we update the actual theme and apply dynamic color, there are a few changes that need to be made in the adle file for your application. The Tip Time app is a tip calculator app with options to customize the tip. A computer with Android Studio installed.How theme attributes relate to each other.How to create themes using our tooling and apply them.
In this codelab, you will update the starter app, a tip calculator app to use the new features in Material Design 3 allowing an application's user interface to be themed dynamically based on the user's wallpaper.
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