应用第一次启动，修改rootViewController方法

1、第一次设置

C代码  

1. self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];  

2. NewEntryController *controller = [[NewEntryController alloc] initWithNibName:@"NewEntryController" bundle:nil];  

3. self.window.rootViewController = [[GKNavigationController alloc] initWithRootViewController:controller];  

4. [self.window makeKeyAndVisible];  

5. return;  

 

2、修改rootViewController

C代码  

1. AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];  

2. // 在delegate中初始化新的controller  

3. [delegate initTabbarController];  

4. // 修改rootViewController  

5. [delegate.window addSubview:delegate.tabbarController.view];  

6. [self.view removeFromSuperview];      

7. delegate.window.rootViewController = delegate.tabbarController;