项目是在ipad上的横屏的项目，运行在ios6上时，在用到选择本地相册的时候崩溃：

“Terminating app due to uncaught exception 'UIApplicationInvalidInterfaceOrientation', reason: 'Supported orientations has no common orientation with the application, and shouldAutorotate is returning YES”

一查原来是ios6的rotation较之前有了改动。ios6丢弃了shouldAutorotateToInterfaceOrientation的方法，代替的是supportedInterfaceOrientations 、shouldAutorotate 、preferredInterfaceOrientationForPresentation等方法，具体变化见：

 

因为项目要求是全部横屏，但是UIImagePickerController又是竖屏显示的。违反了ios6对Rotation的新规定。最终在

找到答案。

在appdelegate添加

#if __IPAD_OS_VERSION_MAX_ALLOWED >= __IPAD_6_0- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{    return UIInterfaceOrientationAllMask;}#endif

然后在你UIImagePickerController的top-most VC中添加：

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{    return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft||interfaceOrientation==UIInterfaceOrientationLandscapeRight);}//ios 6 rotation -(NSUInteger)supportedInterfaceOrientations{    return UIInterfaceOrientationLandscapeMask;}    - (BOOL)shouldAutorotate  {      return YES;  }

 

问题解决！