xcode - How to attach debugger to iOS app after launch?

Question

I have an issue I am troubleshooting which occurs very infrequently and doesn't seem to happen when I have things running under Xcode.

Is it possible to run an app normally (i.e. from Springboard) until my issue occurs, and then attach a debugger at that point?

I would prefer to do this without jailbreaking if possible.

Answer 1

• Attach your device connected your Mac
• Debug > Attach to Process by PID or Name
• In the dialog sheet, enter the name of your App as it appears in the Debug navigator when started via Xcode (e.g. Target's name not bundle-id).

If the app is already running, the debugger will attach to the running process. If it isn't running, it will wait for the app to launch and then attach.