ios – 在UINavigationViewController上推送(推送segue)视图后,方向不会改变

2023年1月29日 250次阅读

我在UINavigationController中嵌入了一个UIViewController.此控制器的视图方向设置为Portait.当我在这个仅仅是风景的UIViewController上推新视图时,新视图也会显示为纵向,而不是它的方向横向.

我试图将UINavigationController子类化并添加如下方法：

- (BOOL)shouldAutorotate {
    return self.topViewController.shouldAutorotate;
}

- (NSUInteger)supportedInterfaceOrientations {
    return self.topViewController.supportedInterfaceOrientations;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return self.topViewController.preferredInterfaceOrientationForPresentation;
}

在rootViewController(LoginViewController)中我这样做了：

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationPortrait;
}

- (BOOL)shouldAutorotate
{
    return YES;
}

在pushViewController(自定义ViewController)中我这样做了：

- (NSUInteger)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskLandscape;
}

-(BOOL)shouldAutorotate {
    return YES;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationLandscapeRight | UIInterfaceOrientationLandscapeLeft;
}

我正在使用故事板和它们之间的推动.我知道问题在于推送segue导致接管topviewcontroller的方向,这是纵向和pushViewController是风景. anyboy是否知道变通办法？

感谢任何帮助.否则我应该放弃navVC并执行模态segue.

最佳答案试试这段代码：

在AppDelegate.m类中编写下面的代码.

#pragma mark Orientation Code
- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    NSUInteger orientations = UIInterfaceOrientationMaskAll;

    if (self.window.rootViewController) {
        UIViewController* presented = [[(UINavigationController *)self.window.rootViewController viewControllers] lastObject];
        orientations = [presented supportedInterfaceOrientations];
    }
    return orientations;
}

接下来如果你不想要特定类的方向

停止方向viewController.m

#pragma mark Orientation
- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationPortrait;
}

- (BOOL)shouldAutorotate
{
    return NO;
}