家长的UIViewController方向不应改变驳回过了一会儿(Parent UIViewCont

可以说，我有三个UI控制器（A，B，C）。

A是我的根控制器和ShouldAutoRotate方法里面我返回YES。 我做presentModalView从A到B（B =>此ShouldAutoRotate方法我返回肖像内），然后从BI做presentModal到C（C应能旋转到任何方向）。

现在C内我能模拟器旋转到任何方位，整个景观旋转perfectly.Here的问题是，当C是风景，我驳回，B里面所有的目标将变得一团糟！ 同样的事情发生在A.

我只是需要有C上的旋转！

谢意。

Answer 1:

在应用程序的委托

@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (nonatomic) BOOL shouldRotate;
@end

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{
    if (self.shouldRotate == YES) {
        return UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight | UIInterfaceOrientationMaskPortrait;
    }
    return UIInterfaceOrientationMaskPortrait;
}

在的viewController A，B

- (void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    ((AppDelegate *)[[UIApplication sharedApplication] delegate]).shouldRotate = NO;
    [self supportedInterfaceOrientations];

    [self shouldAutorotate:UIInterfaceOrientationPortrait];

    [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:NO];
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

- (BOOL)shouldAutorotate:(UIInterfaceOrientation)interfaceOrientation{
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

-(NSUInteger)supportedInterfaceOrientations{
    return UIInterfaceOrientationMaskPortrait;
}

在Ç的viewController

- (void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    ((AppDelegate *)[[UIApplication sharedApplication] delegate]).shouldRotate = YES;

}

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

- (BOOL)shouldAutorotate:(UIInterfaceOrientation)interfaceOrientation{
    return YES;

}

-(NSUInteger)supportedInterfaceOrientations{
    return UIInterfaceOrientationMaskPortrait|UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
}

- (IBAction)closeVC:(id)sender {
    NSNumber *value = [NSNumber numberWithInt:UIInterfaceOrientationPortrait];
    [[UIDevice currentDevice] setValue:value forKey:@"orientation"];
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    appDelegate.shouldRotate = NO;

    [self supportedInterfaceOrientations];

    [self shouldAutorotate:UIInterfaceOrientationPortrait];

    [self dismissViewControllerAnimated:YES completion:nil];
}

希望这能解决你的问题

Answer 2:

您需要允许从项目信息所有方向

，然后覆盖所有实施这些方法的目标中的每个视图控制器的iOS 6 +来启用和禁用取向。

supportedInterfaceOrientations

shouldAutorotate

shouldAutorotateToInterfaceOrientation

Answer 3:

力旋转C到人像您关闭之前

[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:NO];

文章来源: Parent UIViewController Orientation Shouldn't Change After Dismissing the Child