@jake765111
Can you provide more context, how exactly are you trying to switch between views?
Can you check if your LoginController class is properly linked in the storyboard as well?
For API docs, you could check one of these options: https://github.com/Kikobeats/awesome-api#documentation
Or https://docusaurus.io
Swagger is very used as well.
@xXImm0rtaLXx Just out of curiosity, why not start learning using the native platform for each platform, Swift/Objective-C for iOS and Kotlin/Java for Android?