I have a UIViewController with the following code:
- (BOOL) shouldAutorotate {
return NO;
}
-(NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationPortrait;
}
I am not using a UINavigationController. When this UIViewController is being displayed, the device will still rotate to landscape. I am targeting iOS 9, what's the issue here?
So the issue was that I had defined the allowed orientations in info.plist which apparently overrides anything you do anywhere else throughout the project.
To correct the issue I removed the entries from info.plist and defined them in the project settings. Now everything works as expected.
I don't think Bryan's answer works,for changing the orientations in project settings also changes the info.plist as #mrhangz commented.
If the issue is iOS9 only,it is probably due to the new feature of iOS9 in iPad called Split view.The iOS9 enable Split view by default in particular iPad device,see Apple documents here.
The split view forced your app to support all orientations in all view once adoptted.So if you set all orientations support in either info.plist or target general setting,and then split view is supported by default,which will ignore the orientation setting though supportedInterfaceOrientations in your viewController and support all orientations.
As the document written,if you checked Requires full screen in your target settings,then your app will not support split view.Now you can control orientations in code again.
I have try many solution, but the correct answer with working solution is:
ios 8 and 9, no need to edit info.plist.
- (BOOL) shouldAutorotate {
return NO;
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
return (UIInterfaceOrientationPortrait | UIInterfaceOrientationPortraitUpsideDown);
}
possible orientation
UIInterfaceOrientationUnknown
The orientation of the device cannot be determined.
UIInterfaceOrientationPortrait
The device is in portrait mode, with the device held upright and the home button on the bottom.
UIInterfaceOrientationPortraitUpsideDown
The device is in portrait mode but upside down, with the device held upright and the home button at the top.
UIInterfaceOrientationLandscapeLeft
The device is in landscape mode, with the device held upright and the home button on the left side.
UIInterfaceOrientationLandscapeRight
The device is in landscape mode, with the device held upright and the home button on the right side.
In swift 5
The code below will lock the current view controller into portrait mode but still allow the other view controllers to transition to landscape. I do believe that you have to enable all the orientations at the project level and then turn then "off" using this method but am not sure if there is way to turn them back "on" one by one.
private var _orientations = UIInterfaceOrientationMask.portrait
override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
get { return self._orientations }
set { self._orientations = .portrait }
}
A more thorough explanation of it all can be found here:
The supportedInterfaceOrientations method doesn't override any method from its superclass
For simplicity, for iPad, if Supported interface orientations (iPad) property in info.plist includes all the four orientations, with UIRequiresFullScreen property value as NO, iOS will treat your app as supporting split view. If an app supports split view feature, you can not disable it from rotating, at least by the ways above.
I have a detail answer here.
Related
I have an app supports both orientation portrait and landscape. But in a viewcontroller I JUST want it present in LANDSCAPE mode. I try overriding some methods for changing orientation such as
- (BOOL)shouldAutorotate {
return NO;
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
return (UIInterfaceOrientationLandscapeLeft | UIInterfaceOrientationLandscapeRight);
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
if (UIInterfaceOrientationIsLandscape(toInterfaceOrientation)) {
return YES;
}
return NO;
}
But none of them are called in iOS 9. Therefore, this viewcontroller present both portrait and landscape. On contrary, it works perfectly in iOS 8.
So annoying, is there anyway to force just a viewcontroller presented in landscape mode in iOS 9
UPDATE:
As Ronak Chaniyara's answer, I solved my problem, just one controller is in landscape mode.
Now I face another problem. If I want to force one controller just in portrait mode, I implement these methods in the controller but it's still rotated if I rotate screen.
Is the solution still work with portrait mode, or I have to find another approach to force a controller just in portrait mode
I think issue will be you have defined the allowed orientations in info.plist which apparently overrides anything you do anywhere else throughout the project.
To correct the issue I removed the entries from info.plist and defined them in the project settings. Now everything works as expected.
Hope this helps.
Look at your info.plist file. Here you have a key named "Supported Interface Orientation" with a group for the iPhone version and another for the iPad.
Here you can delete the value "Portrait (bottom home button)", and replace it by "Landscape (left home button)" or "Landscape (right home button)".
I hope it helped!
In this way, you can do:
Go to target setting
Go to development info
Change device orientation to landscape and uncheck all other option.
Hope this help you
I'm working on an iPhone app. Right now all my view controllers rotate to portrait, landscape left, and landscape right (default behavior for an iPhone app out of the box). What I want is for my app's setup, app-wide, to include support for all interface orientations. How do I make that happen? I have all interface orientations selected at the project level and it's not making any difference. Here's a pic:
Now, when I test my app on my iPhone, it refuses to rotate to UIInterfaceOrientationPortraitUpsideDown. Why?
Okay, once we get that figured out, there is a follow up question... I have a single view controller within my app that I only want to support UIInterfaceOrientationPortrait and UIInterfaceOrientationPortraitUpsideDown how can I achieve this? I have the following code in my controller and it doesn't do the trick:
// The following method never gets called (but wanted to
// include this to show that I've tried it).
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return UIInterfaceOrientationPortrait;
}
// This method does get called but has no effect. The VC that this method
// belongs to rotates to all interface orientations except for
// UIInterfaceOrientationPortraitUpsideDown which is definitely
// not what I want...
- (NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationPortrait | UIInterfaceOrientationPortraitUpsideDown;
}
// This method never gets called either and therefore has no effect...
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait) || (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown);
}
Note that my app is storyboard based (if that makes any difference). Any help would be much appreciated! Thanks.
By doing what is explained in Landscape Mode ONLY for iPhone or iPad and adding evey interface orientation when doing it, it will support all orientations.
Change your App's Info.plist file:
Add Supported interface orientations row to your App's Info.plist file with all the supported interface orientation's
Add the supported interface orientation's to "Supported Interface Orientations".
(Targets -> YourApp -> Supported Interface Orientations -> Landscape Left & Right)
Seems like a simple thing to do right? Go to the Target's Summary tab and set "Supported Interface Orientations" to Landscape Right only. You would think that would mean the app would be landscape only. But no.
On a device running 5.1 for example, if you open the app and hold the phone in the correct landscape right position you will see the view rotated 90 degrees counterclockwise, as if it think it's supposed to be in portrait mode, unless you add something like this:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return UIInterfaceOrientationIsLandscape(interfaceOrientation);
}
But that only works for one view controller, and who knows if it works on all OS versions.
So how do you make an app landscape only? Do I have to add that code to every single view controller in the app? I do not need any rotation. All my views are designed in Landscape. I just want the app to open in Landscape Right mode and stay that way. And I want to support iOS 5 and up.
There are new methods introduced that you have to implement along with the old one they are as below
-(BOOL)shouldAutorotate
{
return YES;
}
-(NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskLandscape;
}
In Xcode you can navigate to your project settings -> summary -> iPhone/iPod deployment info. Here you can select the supported interface orientations. You can also edit the 'Supported interface orientations' array in your application's info.plist by adding the desired interface orientations application wide.
In the info.plist put the orientation to landscape
In the project summary, "Supported Interface Orientations" are all selected, as there is a photo gallery view in my App, which can be rotated with device. The other views are portrait only. The target devices is iPhone, and all things perform well in the iPhone. But when it runs in my iPad with landscape mode, the splash and the rootView are as following:
splash-landscape:
rootview-landscape:
What I expected look should be the same as the iPad is with portrait mode:
splash-portrait:
rootview-portrait:
The rootView is MyNavigationController, some related code is as following:
MyNavigationController.m
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (NSUInteger)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskPortrait;
}
- (BOOL)shouldAutorotate {
return NO;
}
Please, correct your code with the following:
- (BOOL)shouldAutorotate {
return YES;
}
- (NSUInteger)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskPortrait;
}
It may seem odd returning YES from shouldAutorotate. The fact is, if you do return NO, then supportedInterfaceOrientations will not be called at all and your project settings will rule. You could as well remove shouldAutorotate and it should work just the same.
Reference:
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. If the view controller supports the new orientation, the window and view controller are rotated to the new orientation. This method is only called if the view controller’s shouldAutorotate method returns YES.
Do you mean by showing a landscape launch screen and then in app still use portrait mode?
As far I know, iPhone-only app can't launch in landscape mode, which means giving a landscape launch screen to iPhone-only app is useless.
Check the document here at the "Providing Device-Specific Launch Images" section.
I guess what you want is make the status bar be portrait too. Unfortunately, there is no easy way to do this -- you can setup the device/interface orientation to protrait only, but it applies to the whole application. And you will need to process the orientation of all views by yourself. So, I will suggest you follow Hide status bar on launch image, hide your status bar, and use the same image in both orientations. It will make the splash screen look better.
I am looking for some clarification on how to allow only certain orientations for your iOS app. I am aware of UISupportedInterfaceOrientations and shouldAutorotateToInterfaceOrientation but I am a little confused on their uses and exactly how they fit together.
I attempted to use UISupportedInterfaceOrientations to only allow landscape orientations, which appeared to have no affect until I researched in to it and read that it affects the initial orientation. Upon testing this, my app does appear to only open in landscape but quickly rotates if the screen is portrait.
I know you can use shouldAutorotateToInterfaceOrientation to limit the allowed orientations, for example:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft) ||
(interfaceOrientation == UIInterfaceOrientationLandscapeRight);
}
However, while doing some reading online I read shouldAutorotateToInterfaceOrientation is deprecated as of iOS6.
Basically my questions are:
What is the correct approach for limiting screen orientations across
multiple versions of iOS?
Is the only use of UISupportedInterfaceOrientations to limit the
initial orientation?
Edit:
To expand on the accepted answer, shouldAutorotate works in iOS6. As a quick fix if you've already implemented your logic in shouldAutorotateToInterfaceOrientation and/or you want to support earlier versions of iOS, you can do the following:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft) ||
(interfaceOrientation == UIInterfaceOrientationLandscapeRight);
}
- (BOOL)shouldAutorotate {
return [self shouldAutorotateToInterfaceOrientation:self.interfaceOrientation];
}
The method you need to use for rotation instead of shouldAutorotateToInterfaceOrientation is just shouldAutorotate
Handling rotation, according to the AppleDoc for ViewControllers:
In iOS 6, your app supports the interface orientations defined in your app’s Info.plist file. A view controller can override the supportedInterfaceOrientations method to limit the list of supported orientations. Generally, the system calls this method only on the root view controller of the window or a view controller presented to fill the entire screen; child view controllers use the portion of the window provided for them by their parent view controller and no longer participate in directly in decisions about what rotations are supported. The intersection of the app’s orientation mask and the view controller’s orientation mask is used to determine which orientations a view controller can be rotated into.
You can override the preferredInterfaceOrientationForPresentation for a view controller that is intended to be presented full screen in a specific orientation.
The method shouldAutorotateToInterfaceOrientation is deprecated, as are some methods for handling responses to device rotation.
For supporting methods of multiple versions of iOS, Here's something else that Apple has said:
For compatibility, view controllers that still implement the shouldAutorotateToInterfaceOrientation: method do not get the new autorotation behaviors. (In other words, they do not fall back to using the app, app delegate, or Info.plist file to determine the supported orientations.) Instead, the shouldAutorotateToInterfaceOrientation: method is used to synthesize the information that would be returned by the supportedInterfaceOrientations method.
Taken from release notes
To answer your second question:
Yes, the "UISupportedInterfaceOrientations" entry in the Info.plist is used only for initial startup of your app, making sure it doesn't start your app in an orientation it doesn't support, so that it's not required to perform a rotation right away.
Also, overriding "application:supportedInterfaceOrientationsForWindow" in your AppDelegate is pretty useful if your app never wants to use particular orientations (e.g. for a game that only does landscape).
Lastly, and this is a common error, on iPhone and iPod Touch devices, the device should never rotate to UIInterfaceOrientationPortraitUpsideDown! That's because these devices (contrary to an iPad) do not let the user lock a device in landscape mode with the Lock soft button - that button only locks into portrait. Therefore, if a user, laying on his side, wants to use an app in landscape mode, he cannot do this if your app goes into the upside down orientation. But if you disallow that rotation, then it works.