How to Inspect SwiftUI.TextField.onSubmit and Figure Out You Can't Programmatically Use It

Jun 6th, 2023

I wanted to know how a SwiftUI TextField gets to know its onSubmit handler to wire my own NSViewRepresentable to it (would be the same for a UIViewRepresentable). There’s no key for that block in the EnvironmentValues structure that you get from the “context”, though.

Find Out if Xcode/LLDB Debugger Is Attached to Current App

Jul 1st, 2019

This time, I don’t want to find out if the app is compiled as debug/release mode; I want to find out if the debugger is attached. I found an Objective-C answer on StackOverflow which is based on HockeyApp-iOS.