Question : how to debug before app launch swift
Answered by : ahsan-khalil
In the Scheme editor in Xcode, you can edit the Debug profile to have the debugger "Wait for XY.app to launch". If you then select Product -> Run, the debugger should wait until you launch the app manually on the device and then automatically attach to the running process.
for detail https://stackoverflow.com/a/11208827/8879138Source : | Last Update : Tue, 04 Jan 22