IssueTracker

Using KClass or Class<> for type info is preferred, but not always practical, for some use cases you need the classname in a String.

E.g. see androidx.navigation.fragment.FragmentNavigator.Destination.setClassName

This issue requests the addition of an annotation (e.g. @ClassName) that specifies that a String should contain the name of a Class.

Any string annotated with @ClassName should success with passed into Class.forName.

This is similar to @IntRange, @IdRes, etc. which give additional constraints on a type.

This could be used for lint checks, refactoring and R8 optimizations.

This annotation could have additional info such as must extend a certain type.

FragmentNavigator.Destination.setClassName could be annotated like this:

        public fun setClassName(
               @ClassName(extends = "androidx.fragment.app.Fragment") 
               className: String
        ): Destination