Crash when tap near the screen edges

[gklka]

I can reproduce a crash with SMCalloutView if I tap near the left screen edge quickly after a callout view was opened. The crash happens in this line: https://github.com/nfarina/calloutview/blob/master/SMCalloutView.m#L409

Debugger:

(lldb) p presenting
(BOOL) $0 = YES
(lldb) po _delegate
0x0000000155ffbec0

(lldb) print _delegate
(id) $2 = 0x0000000155ffbec0

Could you please help finding what causes the issue? I'd gladly provide any details you might ask.

[gklka]

The error itself is EXC_BAD_ACCESS (code=1, address=...).

[nfarina]

Can you reproduce this in the included Samples app? I can't seem to make it crash myself.

[gklka]

Unfortunately not. I am not sure what causes the problem, but if I modify the delegate's type in your code from unsafe_unretained (which is legacy) to weak, it works.