xcode - ios6关闭子视图时将父视图自动旋转为纵向

Question

嵌入在导航控制器中的登录视图控制器必须是纵向的。其他视图控制器的 push 可以旋转。场景：如果登录后我旋转子视图控制器，然后注销登录视图控制器出现在横向中。

logincontroller(portrait)->rotated device->childcontroller(landscape)->back->logincontroller(landscape)

当我回来时，我希望登录控制器是纵向的。

Answer 1

在你的登录 ViewController 中输入这两个方法

- (BOOL)shouldAutorotate {
    return YES;    
}

- (NSUInteger)supportedInterfaceOrientations {    
    return (UIInterfaceOrientationMaskPortrait | 
            UIInterfaceOrientationMaskPortraitUpsideDown);
}

和

- (BOOL)shouldAutorotate {
    return YES;    
}

- (NSUInteger)supportedInterfaceOrientations {    
    return (UIInterfaceOrientationLandscapeRight | 
            UIInterfaceOrientationLandscapeLeft);
}

在您的孩子控制器中

Answer 2

在你的登录 ViewController 中输入这两个方法

(BOOL)shouldAutorotate { return YES;
}

(NSUInteger)supportedInterfaceOrientations {
return (UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown); }

和

(BOOL)shouldAutorotate { return YES;
}

(NSUInteger)supportedInterfaceOrientations {
return (UIInterfaceOrientationLandscapeRight | UIInterfaceOrientationLandscapeLeft); }

在您的孩子控制器中

需要添加类别自动旋转子类导航控制器，该控制器将调用 topcontroller shouldautorotate 并支持界面方向。

#import "UINavigationController+Autorotation.h"

@implementation UINavigationController (Autorotation)
-(BOOL)shouldAutorotate
{
for (UIViewController * viewController in self.viewControllers) {
    if (![viewController isEqual:self.topViewController]) {
        [viewController shouldAutorotate];
    }
}

return [self.topViewController shouldAutorotate];

}

-(NSUInteger)supportedInterfaceOrientations
{
for (UIViewController * viewController in self.viewControllers) {
    if (![viewController isEqual:self.topViewController]) {
        [viewController supportedInterfaceOrientations];
    }
}

return [self.topViewController supportedInterfaceOrientations];

}