问题
I have a strange issue, I have developed an app , I analyzed the app from Xcode i.e Xcode>Product>Analyze, then fixed any memory leaks I got. I ran the app in ipad simulator it worked fine, no crash nothing, ran it on an iPad device;no crash no errors nothing.
But when I tried to profile the app from instruments for memory leaks , during profiling there were no memory leaks, but at one stage when I load a modal view and then after Modal view dismissal the app crashes and instrument displays simulator session time out.
What could be the problem ?
回答1:
If you have any compile conditions, e.g.: #ifdef DEBUG ..., to switch on/off functionality between debug and release this could cause problems since Instruments uses the Release configuration and regular Simulator run uses Debug.
来源：https://stackoverflow.com/questions/9679641/app-crashes-only-in-xcode-instruments