在iOS7系统上，我项目工程里写了一个CinemaMemberView，添加到一个viewController中，结果崩溃了。iOS8和iOS6上则不会崩溃。
Terminating app due to uncaught exception ‘NSInternalInconsistencyException‘, reason: ‘Auto Layout still required after executing -layoutSubviews. CinemaMemberView‘simplementation of -layoutSubviews needs to call super.‘
*** First throw call stack:
(
0 CoreFoundation 0x073cf1e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x070848e5 objc_exception_throw + 44
2 CoreFoundation 0x073cf048 +[NSException raise:format:arguments:] + 136
3 Foundation 0x04fc54de -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 116
4 UIKit 0x05466a38 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 567
5 libobjc.A.dylib 0x0709682b -[NSObject performSelector:withObject:] + 70
6 QuartzCore 0x06df545a -[CALayer layoutSublayers] + 148
7 QuartzCore 0x06de9244 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 380
8 QuartzCore 0x06de90b0 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 26
9 QuartzCore 0x06d4f7fa _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 294
10 QuartzCore 0x06d50b85 _ZN2CA11Transaction6commitEv + 393
11 QuartzCore 0x06e0e5b0 +[CATransaction flush] + 52
12 UIKit 0x05414ce5 _afterCACommitHandler + 131
13 CoreFoundation 0x0739736e __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
14 CoreFoundation 0x073972bf __CFRunLoopDoObservers + 399
15 CoreFoundation 0x07375254 __CFRunLoopRun + 1076
16 CoreFoundation 0x073749d3 CFRunLoopRunSpecific + 467
17 CoreFoundation 0x073747eb CFRunLoopRunInMode + 123
18 GraphicsServices 0x0906d5ee GSEventRunModal + 192
19 GraphicsServices 0x0906d42b GSEventRun + 104
20 UIKit 0x053f7f9b UIApplicationMain + 1225
21 SOHUVideoHD 0x0000d649 main + 121
22 libdyld.dylib 0x0805a6d9 start + 1
23 ??? 0x00000001 0x0 + 1
)
CinemaMemberView的layoutSubviews是这样的：
-(void)layoutSubviews{
[super layoutSubviews];
if (self.layoutType == ECinemaViewType_Wide_button) {
[self layoutWideType];
[self layoutWideTypeOnlyButton];
}else if (self.layoutType == ECinemaViewType_Wide_logo){
[self layoutWideType];
[self layoutWideTypeOnlyLogo];
}
else {
[self layoutNarrowType];
}
}
解决办法是，将super layoutSubviews放到layoutSubviews的最后，问题是解决了，但真正崩溃的原因还不明确。
-(void)layoutSubviews{
/*逻辑代码*/
...
/*逻辑代码*/
[super layoutSubviews];
}
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