presentViewController changes the orientation of the controller

Question

I want to play a video from a view controller. When I present it, it is presented like it is a portrait orientation, so view turns. It only happens on iPhones,not the iPads.

There is a ViewController > MyItemsController > VideoController

When I close the VideoController, parent controller (MyItemsController) of the video controller is like:

Storyboard of the view controller is:

And the code is:

-(void)playMoviesForItems:(NSArray *)shopItems{
    VideoPlayerViewController* moviePlayer = [self.storyboard instantiateViewControllerWithIdentifier:@"videoPlayerController"];
    moviePlayer.modalPresentationStyle = UIModalPresentationCurrentContext;
    moviePlayer.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
    [self presentViewController:moviePlayer animated:NO completion:nil];
}

I moved the code into app delegate :

-(void)playMoviesForItems:(NSArray *)shopItems{
VideoPlayerViewController* mp = [[self getStoryboard] instantiateViewControllerWithIdentifier:@"videoPlayerController"];
[mp playMoviesForItems:shopItems];
[self pauseBackgroundMusic];

[self.window makeKeyAndVisible];
[self.window.rootViewController presentViewController:mp animated:YES completion:NULL];
}

This time, everything seem to be ok. Movie is playing, I can hear the sound, but cannot see the video. Why?

Answer 1

While the accepted answer was down voted since it does not answer the question, here's something that works on iOS9 :

The method that gets called when the ViewController is presented (modally) is preferredInterfaceOrientationForPresentation . This method must return an orientation.
You should check the presenter's orientation and return it as preferred:

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
        UIInterfaceOrientation topOrientation = self.navigationController.visibleViewController.interfaceOrientation;
        UIInterfaceOrientation presentingOrientation = self.presentingViewController.interfaceOrientation;

        return   presentingOrientation ? presentingOrientation : topOrientation ? topOrientation : UIInterfaceOrientationLandscapeLeft;
}

topOrientation contains the visible view controller's orientation, while the presentingOrientation is the orientation of the called to presentViewController:animated... In general, I advise you to create a "base" UIViewController class, and inherit from it. This way all of your view controllers will benefit from this code.

Answer 2

I had this exactly same problem a few minutes ago.

What happened to me is that I was trying to present the new ViewController with a another ViewController which wasn't in the hierarchy, it only had it's view added as a subview of a third ViewController in the hierarchy. To fix the problem, I just made this last ViewController present the new one.

Example of what not to do:

UIViewController *secondController = [UIViewController alloc] init];
[rootViewController presentViewController:secondController animated:NO completion:nil];

UIViewController *controllerOutsideHierarchy = [UIViewController alloc] init];
[secondController.view addSubview:controllerOutsideHierarchy.view];

[controllerOutsideHierarchy presentViewController:thirdController animated:NO completion:nil];

Example of what should be done instead:

UIViewController *secondController = [UIViewController alloc] init];
[rootViewController presentViewController:secondController animated:NO completion:nil];

UIViewController *controllerOutsideHierarchy = [UIViewController alloc] init];
[secondController.view addSubview:controllerOutsideHierarchy.view];

[secondController presentViewController:thirdController animated:NO completion:nil];

Hope this helps!

Answer 3

Make sure to add these two in the child view controller:

- (UIInterfaceOrientationMask) supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscape;
}

- (BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
    return UIInterfaceOrientationIsLandscape(toInterfaceOrientation);
}

Answer 4

you must add the methods below , in your self.window.rootViewController 'class:

-(BOOL)shouldAutorotate
{
    return [[self.viewControllers lastObject] shouldAutorotate];
}

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

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation];
}


@end

if your rootViewController is [UINavigationController class], command+n add a category of UINavigationController ,like my code below

@implementation UINavigationController (Rotation_For_iOS6)

-(BOOL)shouldAutorotate
{
    return [[self.viewControllers lastObject] shouldAutorotate];
}

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

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation];
}


@end

and then ,go to the viewController.m which u want to be landscape or portrait mode,maybe for u is your VideoController !!!!!! add methods below:

#pragma mark
#pragma mark ----- Orientation Control For iOS 6/7 -----

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

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
    return (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight||toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft);
}

now i set my vc supported for landscape mode, last but not least,make sure your project deployment info select the orientation your want.

Answer 5

Swift 4.1 version

To prevent auto rotation orientation you need to override shouldAutorotate variable

override var shouldAutorotate: Bool {
    return false
}

To present view controller in landscape mode you need to override preferredInterfaceOrientationForPresentation variable

override var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation {
    return .landscapeLeft// or .landscapeRight
}

You need to present view controller to get it work(It doesn't work for pushed view controller)

Answer 6

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

-(BOOL)shouldAutorotate
{
    return YES;
}

-(NSUInteger)supportedInterfaceOrientations
{
    return (UIInterfaceOrientationMaskLandscape);
}

Try this...