launchMapActivity method
Launches a map activity.
This abstract method must be implemented by subclasses to provide platform-specific functionality for launching a map activity. The implementation should handle invoking the appropriate platform method to perform the action.
Throws an UnimplementedError if the method is not overridden by a subclass.
Implementation
Future<void> launchMapActivity() {
throw UnimplementedError('launchMapActivity() has not been implemented.');
}