SplitViewController在5.0有可能出现的异常

SplitViewController在5.0有可能出现的错误

在5.0上你可能在使用上发现：is expected to have a master view controller before its used!的错误

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可能的原因是顺序的问题

- (BOOL)application:(UIApplication *)application                                     didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{  ...  ...  self.splitViewController = [[UISplitViewController alloc] init];  self.splitViewController.delegate = detailViewController;  self.splitViewController.viewControllers = [NSArray arrayWithObjects:masterNavigationController,                                                      detailNavigationController, nil];  ...  ...}