How to attach debugger to iOS app after launch?
- 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 navigatorwhen 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.
I'll leave this here since neither of the other 2 answers gave me quite enough detail without a little bit of a struggle.
Run your app in the simulator and take note of the name in the Debug navigator
Plug in your device and don't forget to select your device as the target
- Debug > Attach to Process > By Process Identifier (PID) or Name
- Enter the name from step 1 and attach. That should be all you have to do.
In Xcode 5.0.1 and 6 it's the menu bar items:
Debug > Attach to Process > By Process Identifier (PID) or Name...
In Xcode 7 it's just:
Debug > Attach to Process by PID or Name...