Question

我有一个主窗口（基于窗口的应用程序）和两个不同的UIViewController。我正在调用viewController1而没有任何问题。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{

}

viewController1上有一个按钮，当我按下按钮我想从mainWindow中删除viewController1并添加viewController2而不使用导航控制器。

任何帮助将不胜感激，非常感谢。

Answer 1

您可以使用rootViewController对象的UIWindow属性。在rootViewController方法中创建并设置第一个视图控制器为application:didFinishLaunchingWithOptions:。

self.window.rootViewController = [[[FirsViewController alloc] init] autorelease];

并在按钮点按方式

中更改它

- (IBAction)buttonTapped:(id)sender {
    SecondViewController * viewController = [[[SecondViewController alloc] init] autorelease];
    CGRect frame = viewController.view.frame;
    frame.origin = CGPointMake(0, 20); // To account for the status bar. Otherwise the gap is at the bottom during animation that adjusts after it completes.
    viewController.view.frame = frame;
    [UIView transitionWithView: self.view.window
                      duration: 0.5
                       options: UIViewAnimationOptionTransitionFlipFromLeft
                    animations:^{
                        self.view.window.rootViewController = viewController;
                    }
                    completion: NULL];
}

在UIViewController之间切换

1 个答案: