我注意到应用程序代理中有很多iPhone应用程序的示例
- (void)applicationDidFinishLaunching:(UIApplication *)application
有
[window addSubview: someController.view]; (1)
而不是
self.window.rootViewController = self.someController; (2)
Is there any practical reason to use one over the other? Is one technically correct? Do controller's 有 an equivalent command to number (2) like
self.someController.rootController = self.someOtherController; // pseudocode