I did an App which is tab-based. Nothing needs to be on landscape mode but a couple of views. It worked OK on iOS5 and I was pretty happy with the result. However with iOS6 and without messing with anything, it now rotates all the views and the consequences are not nice.
Because its a tab-based app, the couple of view I need in landscape are modalViews. That way I didn't mess with the tabbar and I had only to chose portrait in the "Supported Orientations" setting on build options and set:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft);
return (interfaceOrientation == UIInterfaceOrientationLandscapeRight);
}
on the views I wanted landscape.
Now with iOS6 this views are also on portrait mode, no matter what and they do not show the landscape mode even if I rotate the device. Likewise, if I allow all the orientations on the "Supported orientations", they all rotate, no matter what I put on the method above.
On all the views I haven't check the box "Use Autolayout" on storyboards.
Any help here?
*EDIT** Now that I see it, the App I have on the device works fine. I've installed with a promo code, not from Xcode, only to see whether my customers are having problems or not. Fortunatelly they are not. The problem remains though.
The most important part of the documentation I found for this issue is:
When the user changes the device orientation, the system calls this method on the root view controller or the topmost presented view controller that fills the window
To make my app fully working for autorotation in iOS 6, I had to do the following:
1) I created a new subclass of UINavigationController, and added shouldAutorotate and supportedInterfaceOrientation methods:
// MyNavigationController.h:
#import <UIKit/UIKit.h>
@interface MyNavigationController : UINavigationController
@end
// MyNavigationController.m:
#import "MyNavigationController.h"
@implementation MyNavigationController
...
- (BOOL)shouldAutorotate {
return YES;
}
- (NSUInteger)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskAll;
}
...
@end
2) In the AppDelegate, I did use my new subclass to show my root ViewController (it is introScreenViewController, a UIViewController subclass) and did set the self.window.rootViewController, so it looks that:
nvc = [[MyNavigationController alloc] initWithRootViewController:introScreenViewController];
nvc.navigationBarHidden = YES;
self.window.rootViewController = nvc;
[window addSubview:nvc.view];
[window makeKeyAndVisible];
This is the alternative solution for iOS6 in case you are using the tab bar controller. It also shows that is NOT needed to override UINavigationController or even UITabBarController.
In your xyzAppDelegate.h add this interface:
@interface UITabBarController (MyApp)
@end
And in xyzAppDelegate.m add these methods:
@implementation UITabBarController (MyApp)
-(BOOL)shouldAutorotate
{
return YES;
}
- (NSUInteger)supportedInterfaceOrientations
{
// your custom logic for rotation of selected tab
if (self.selectedIndex==...) {
return UIInterfaceOrientationMaskAll;
}
else {
return UIInterfaceOrientationMaskPortrait|UIInterfaceOrientationMaskPortraitUpsideDown;
}
}
@end
Also, set the root view controller for the app window:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
...
[self.window setRootViewController:tabBarController];
Are you setting the rootViewController in the delegate? For example,
self.window.rootViewController = self.navigationController;
When I was doing some iOS6 testing it wouldn't work properly until I did that...
I have a good solution for cross 5.0 to 6.0 working - All of the above with
-(BOOL)shouldAutorotate{return [self shouldIRotateAnyiOS];}//iOS6
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{return [self shouldIRotateAnyiOS];}//pre iOS6
-(BOOL)shouldIRotateAnyiOS{
UIInterfaceOrientation interfaceOrientation = [[UIDevice currentDevice] orientation];
//do the rotation stuff
return YES
}
You might double check Support Interface Orientations
On previous version, it means nothing, but affects whole application now.
Note: The 'upside down' option doesn't work even enabled or disabled on iOS 6.
This is what works for me.
I created a new subclass of UINavigationController, and added shouldAutorotate and supportedInterfaceOrientation methods:
#import "MyNavigationController.h"
@interface MyNavigationController ()
@end
@implementation MyNavigationController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (BOOL)shouldAutorotate {
return [self.visibleViewController shouldAutorotate];
}
- (NSUInteger)supportedInterfaceOrientations {
return [self.visibleViewController supportedInterfaceOrientations];
}
@end
Then add this to your delegate
UINavigationController *nvc = [[MyNavigationController alloc] initWithRootViewController:_viewController];
nvc.navigationBarHidden = NO; // YES if you want to hide the navigationBar
self.window.rootViewController = nvc;
[_window addSubview:nvc.view];
[_window makeKeyAndVisible];
Now you can add this to the views you want to rotate in all orientations
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return YES;
}
-(NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskAll;
}
-(BOOL)shouldAutorotate
{
return YES;
}
Or add this to the views you only want to go portrait and portraitUpsideDown
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return
(interfaceOrientation == UIInterfaceOrientationPortrait || interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown);
}
- (NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown ;
}
- (BOOL)shouldAutorotate
{
return YES;
}
There are a few things you may need to handle to get this working since with iOS6 the structure of autorotate has changed. The structure of how autorotate is determined is now reversed. It used to be that an individual view controller can control the autorotate with its decision but now the "shouldAutorotate" is determined by the highest parent in the navigation which in your case is the tabBar.
- You need to make sure your window has a rootViewController set and not just added as a subview.
- You may need to subclass your tabBarController to implement both "supportedInterfaceOrientations" and "shouldAutorotate".
- If there are any viewControllers that need to behave differently then you will need to have your tabBarController consult with them for the answer on whether they should autorotate.
for example:
- (BOOL)shouldAutorotate
{
return self.selectedViewController.shouldAutorotate;
}
and in your view controller you would implement shouldAutorotate and make the decision there.
From Apple's documentation for shouldAutorotateToInterfaceOrientation:
Override the supportedInterfaceOrientations and preferredInterfaceOrientationForPresentation methods instead.
For app "Same Picture" on iOS6 I need an orientation change, my UIViewController never be informed for orientation, it's an photo overlay likely didrotate works well :
- (void)didRotate: ( NSNotification* )note
{
[self performSelector:@selector(rotateRecalculDiffere) withObject:nil afterDelay:0.3 ];
}
I make fine size adjust with delayed call. From notification it's easy to know final orientation
Did a little experimentation: Took an existing app (that wouldn't rotate in iOS-6, but did previously) and added the one line self.window.rootViewController = navCtlr; to AppDelegate. This resulted in an app that appears (at least at first blush) to rotate just fine.
Then, out of curiosity, I created the RotationCanary class and plugged an instance of that into self.window.rootViewController. I'd start up the app and wait for the inevitable "unrecognized selector", create a new method of that name in RotationCanary, and re-run. The new method would call the real nav ctlr and log its response before returning it. This produced (sooner than I expected) the following log:
2012-12-07 13:08:47.689 MyTestApp[53328:c07] System Version is 6.0; Supported versions are 5.0.x to 6.0.x
2012-12-07 13:08:47.691 MyTestApp[53328:c07] Host memory (in bytes) used: 3489513472 free: 803893248 total: 4293406720
2012-12-07 13:08:47.692 MyTestApp[53328:c07] Memory in use by task (in bytes): 23719936
2012-12-07 13:08:47.695 MyTestApp[53328:c07] Creating database
2012-12-07 13:08:47.699 MyTestApp[53328:c07] Item Selected: (null) (null)
2012-12-07 13:08:47.700 MyTestApp[53328:c07] <DetailViewController.m:(27)> Entering Method -[DetailViewController viewDidLoad]
2012-12-07 13:08:47.706 MyTestApp[53328:c07] <SplitContentViewController.m:(57)> Entering Method -[SplitContentViewController viewDidLoad]
2012-12-07 13:08:47.708 MyTestApp[53328:c07] <FamilyMasterViewController.m:(32)> Entering Method -[FamilyMasterViewController viewDidLoad]
2012-12-07 13:08:47.709 MyTestApp[53328:c07] <MasterViewController.m:(41)> Entering Method -[MasterViewController viewDidLoad]
2012-12-07 13:08:47.718 MyTestApp[53328:c07] <FamilyHomeDetailViewController.m:(51)> Entering Method -[FamilyHomeDetailViewController viewDidLoad]
2012-12-07 13:08:47.820 MyTestApp[53328:c07] -[RotationCanary _preferredInterfaceOrientationGivenCurrentOrientation:] - current = 2, result = 2
2012-12-07 13:08:47.821 MyTestApp[53328:c07] -[RotationCanary _existingView] - view = (null)
2012-12-07 13:08:47.824 MyTestApp[53328:c07] -[RotationCanary view] - view = <UILayoutContainerView: 0x9c987f0; frame = (0 0; 768 1024); autoresize = W+H; layer = <CALayer: 0x9c8fa00>>
2012-12-07 13:08:47.825 MyTestApp[53328:c07] -[RotationCanary view] - view = <UILayoutContainerView: 0x9c987f0; frame = (0 0; 768 1024); autoresize = W+H; layer = <CALayer: 0x9c8fa00>>
2012-12-07 13:08:47.826 MyTestApp[53328:c07] -[RotationCanary view] - view = <UILayoutContainerView: 0x9c987f0; frame = (0 0; 768 1024); autoresize = W+H; layer = <CALayer: 0x9c8fa00>>
2012-12-07 13:08:47.827 MyTestApp[53328:c07] -[RotationCanary wantsFullScreenLayout] - result = YES
2012-12-07 13:08:47.827 MyTestApp[53328:c07] -[RotationCanary view] - view = <UILayoutContainerView: 0x9c987f0; frame = (0 0; 768 1024); autoresize = W+H; layer = <CALayer: 0x9c8fa00>>
2012-12-07 13:08:47.830 MyTestApp[53328:c07] -[RotationCanary _tryBecomeRootViewControllerInWindow:] - window = <UIWindow: 0x9c76320; frame = (0 0; 768 1024); opaque = NO; autoresize = RM+BM; layer = <UIWindowLayer: 0x9c76450>>, result = YES
2012-12-07 13:08:47.916 MyTestApp[53328:c07] -[RotationCanary _deepestDefaultFirstResponder] - result = <SignOnViewController: 0x9c942a0>
2012-12-07 13:08:47.916 MyTestApp[53328:c07] Device model: x86_64
Curiously, the class was never actually invoked to perform rotation -- only during setup.
I suspect that Apple uses the setting of rootViewController purely as a way to indicate that the app has been modified for iOS 6 rotation -- it has no real function otherwise.
FWIW: It occurred to me that the caller might be using respondsToSelector and skipping some calls, so I added an implementation of resolveInstanceMethod: to RotationCanary, to trap any such attempts. None occurred.
Autorotation changed in iOS 6.0. Check this link for more information.
Autorotation is changing in iOS 6. In iOS 6, the shouldAutorotateToInterfaceOrientation: method of UIViewController is deprecated. In its place, you should use the supportedInterfaceOrientations and shouldAutorotate methods.
This code common for ios5 and ios6
-(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation duration:(NSTimeInterval)duration {
if (UIInterfaceOrientationIsLandscape(interfaceOrientation)) {
[self performSelector:@selector(setframeLandscap) withObject:nil afterDelay:0.2];
}
else {
[self performSelector:@selector(setframePortrait) withObject:nil afterDelay:0.2];
}
}
-(BOOL)shouldAutorotate {
return YES;
}
来源：https://stackoverflow.com/questions/12536645/rotation-behaving-differently-on-ios6