iphone - UITabBarController presentmodal 自动旋转问题

Question

我有 UITabBarController 的子类来处理旋转问题:

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{
    return YES;
}

-(NSUInteger)supportedInterfaceOrientations{
    return [self.selectedViewController supportedInterfaceOrientations];
}

-(BOOL)shouldAutorotate{
    return YES;
}

现在，我从 tabbatcontroller 中的一个 UIViewController 中展示了一个新的 UIViewController:

MainVC *mainVC = [[MainVC alloc] initWithNibName:@"MainVC" bundle:nil];
UINavigationController *mainNav = [[UINavigationController alloc] initWithRootViewController:mainVC];

radioNav.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentModalViewController:mainNav animated:YES];

在这个新的导航中，我想禁用自动旋转并只允许纵向:

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{
    return NO;
}

-(NSUInteger)supportedInterfaceOrientations{
    return UIInterfaceOrientationMaskPortrait;
}

-(BOOL)shouldAutorotate{
    return NO;
}

但是旋转仍然有效，当我旋转屏幕时，应用会转到横向屏幕，我该如何解决这个问题？

Answer 1

您还应该继承 UINavigationController 并将以下代码放入您的子类中:

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // You do not need this method if you are not supporting earlier iOS Versions
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

-(BOOL)shouldAutorotate
{
    return NO;
}

然后，初始化你的子类的一个实例:

MainVC *mainVC = [[MainVC alloc] initWithNibName:@"MainVC" bundle:nil];
MYSubclassedNavigationController *mainNav = [[MYSubclassedNavigationController alloc] initWithRootViewController:mainVC];

radioNav.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentModalViewController:mainNav animated:YES];