像许多开发人员一样,我正在玩弄 IOS 5 的新功能。
我尝试使用外观代理来自定义我的应用程序。但是在某些方法中我得到一个错误。
这有效:
[[UINavigationBar appearance] setBarStyle:UIBarStyleBlackTranslucent];
//and
[[UINavigationBar appearance] setTintColor:[UIColor greenColor]];
但是当我尝试时:
[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"toolbar_background.png"]];
我收到一个无法识别的选择器错误:
-[_UIAppearance setBackgroundImage:]: unrecognized selector sent to instance 0x153020
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[_UIAppearance setBackgroundImage:]: unrecognized selector sent to instance 0x153020'
*** First throw call stack:
(0x3107a8bf 0x3821f1e5 0x3107dacb 0x3107c945 0x30fd7680 0x2fe7 0x3304c7eb 0x330463bd 0x33014921 0x330143bf 0x33013d2d 0x33bffe13 0x3104e553 0x3104e4f5 0x3104d343 0x30fd04dd 0x30fd03a5 0x33045457 0x33042743 0x2f31 0x2ec8)
terminate called throwing an exception(gdb)
有任何想法吗 ?