Last semester I gave a course on mobile app development using Flutter. The course was based around a series of video lectures, exercises, and supervision. Since the videos are recorded and there is not that much material on Flutter in Swedish, I decided to upload them to YouTube.
They are available here
The series of videos goes from introduction to Flutter, introduction to Dart programming, basic UI layouts, more advanced layouts, state management using StatefulWidget and Provider, and finally network communication.
Essentially it covers the basics of all aspects needed to build simple mobile applications.