objective c - Creating breakpoint in Xcode for unrecognized selector

Question

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

Is it possible to set the breakpoint in Xcode to have the debugger stop only on unrecognized selector?

I have other exceptions that are triggering, and I only want to trigger on the unrecognized selector exception, nothing else.

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1 Answer

深蓝 · Answer 1 · 2021-10-16T23:52:16+0000

Setting a symbolic breakpoint for -[NSObject doesNotRecognizeSelector:] should do the trick.

In Xcode 4, press cmd+6 to go to the Breakpoint Navigator, then click the +and choose "Add Symbolic Breakpoint…". Configure.