封装一个View 加入tableView 报错

[clivexiang]

2016-03-04 16:24:25.789 StarWardrobe[13900:353472] -[**NSCFString xw_sizeWithfont:maxSize:]: unrecognized selector sent to instance 0x7fa342dc04e0
2016-03-04 16:24:25.794 StarWardrobe[13900:353472] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString xw_sizeWithfont:maxSize:]: unrecognized selector sent to instance 0x7fa342dc04e0'
* First throw call stack:
(
0 CoreFoundation 0x0000000105069e65 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x0000000107c81deb objc_exception_throw + 48
2 CoreFoundation 0x000000010507248d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
3 CoreFoundation 0x0000000104fbf90a __forwarding + 970
4 CoreFoundation 0x0000000104fbf4b8 _CF_forwarding_prep_0 + 120
5 StarWardrobe 0x000000010483be4b -[XWCatergoryViewLayout prepareLayout] + 347
6 UIKit 0x0000000106b9a6e5 -[UICollectionViewData _prepareToLoadData] + 67
7 UIKit 0x0000000106b9ae6e -[UICollectionViewData validateLayoutInRect:] + 53
8 UIKit 0x0000000106b4a208 -[UICollectionView layoutSubviews] + 196
9 UIKit 0x00000001063a54a3 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 703
10 QuartzCore 0x000000010606f59a -[CALayer layoutSublayers] + 146
11 QuartzCore 0x0000000106063e70 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 366
12 QuartzCore 0x0000000106063cee _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24
13 QuartzCore 0x0000000106058475 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 277
14 QuartzCore 0x0000000106085c0a _ZN2CA11Transaction6commitEv + 486
15 QuartzCore 0x000000010608637c _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 92
16 CoreFoundation 0x0000000104f95367 CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION + 23
17 CoreFoundation 0x0000000104f952d7 __CFRunLoopDoObservers + 391
18 CoreFoundation 0x0000000104f8af2b __CFRunLoopRun + 1147
19 CoreFoundation 0x0000000104f8a828 CFRunLoopRunSpecific + 488
20 GraphicsServices 0x0000000109b12ad2 GSEventRunModal + 161
21 UIKit 0x00000001062ee610 UIApplicationMain + 171
22 StarWardrobe 0x000000010484cb3f main + 111
23 libdyld.dylib 0x000000010856e92d start + 1
24 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException