App orientation has suddenly stopped working as intended. I have an app with a tabBarController working mainly in portrait mode. Some VC's override this to allow landscape. The deployment target is iPhone on iOS 9.0+.
The shouldautorotate method is no longer being called anywhere in the app, but supportedInterfaceOrientations is called about 10 times (in the tabbarController) for each rotation (for different subVC's I guess).
This has all worked brilliantly before but if I check out an older branch where I know 100% that it worked, it still doesn't work. (I know this because I have a test build which works properly when I download it)
I've tried backtracking, cleaning, updating, reinstalling, re-downloading entire project, switching branches etc. but nothing works. I've gone through all warnings in the debugger output and tried a bunch of code solutions.
I'm wondering if it could be some sort of plist or project setting causing this. But, honestly, I hardly ever change project settings so I doubt it's that.
PS. This is not a duplicate of similarly titled questions. I've gone through them already. I'd be very grateful if anyone has any idea.
Autorotation is the bane of my iOS existence. There was a perfectly good way of doing this pre-iOS 6, then there was a new way of doing this in iOS 6, then another way in iOS 7, and yet another way in iOS 8. According to the UIViewController documentation:
As of iOS 8, all rotation-related methods are deprecated. Instead, rotations are treated as a change in the size of the view controller’s view and are therefore reported using the viewWillTransitionToSize:withTransitionCoordinator: method. When the interface orientation changes, UIKit calls this method on the window’s root view controller. That view controller then notifies its child view controllers, propagating the message throughout the view controller hierarchy.
Note that this method is called on the root view controller for the window, not the active/visible/whatever view controller. My root view controller dismisses any popovers then calls setNeedsLayout on its view. (I manually layout all my views so your requirements may be different.)
I'm coding a video processing app and was just about to submit it to the app store when ios 8.1 came out. I updated my iPhone as well as XCode and all hell broke loose. In my simple single viewcontroller interface nothing is rotating anymore except for the statusbar, which also doesn't get automatically hidden anymore in landscape mode...
I figured it was because I was using the deprecated willAnimateRotationToInterfaceOrientation: for what little custom rotation actions I had, so I implemented traitCollectionDidChange: and viewWillTransitionToSize: to specs instead. However viewWillTransitionToSize never gets called in my app and traitCollectionDidChange: is only called once, at startup. The device simply isn't telling the app that the device has rotated.
After googling I've also tried using name:UIDeviceOrientationDidChangeNotification. At least my selector does get called for that one but I don't know how to manually handle all rotation.
My didFinishLaunching... and viewDidLoad are very simple. alloc UIWindow, storyboard, set my viewcontroller from there, make it rootviewcontroller, makekeyandvisible. All based on one of Apple's AVFoundation demo apps.
Then in didload I add some subviews and a toolbar etc, nothing out of the ordinary and obviously it did work on 8.0 and 8.0.2 on all kinds of devices as well as the 7.1 simulator etc. Still runs flawlessly on my iPad with 8.0.2... Reason I haven't posted any code is I'm 100% sure everything is correct on that end.
Main weird thing is I can't seem to find anyone with this problem.
No errors in console or elsewhere either.
Does anyone have any idea of what might be causing this? I didn't think a point release would make such massive differences and again, no one else seems to be having this. Could it be an issue/bug in the actual storyboard file?
And, mainly, since I can get rotation notifications through UIDeviceOrientationDidChangeNotification, how do I manually handle all rotation/resizing stuff? I have been looking all over for answers but to no avail and am out of time to spend on this project currently :(
Cheers!
alloc'ing UIWindow will be the problem.
First, Make sure your navigation controller (or whatever you're using) is set as "Initial View Controller" in your storyboard.
Secondly, in your AppDelegate.m file, remove any references to UIWindow and rootViewController that appear in application didFinishLaunchingWithOptions. In my case, removing the following two lines fixed my issues.
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
[self.window makeKeyAndVisible];
You also don't need to set the window's rootViewController if using storyboards.
They're simply not needed when using storyboards, but until 8.1 there was never any harm using them. It took my 2 days to figure this out, so hopefully it will help you and others too.
I'm having trouble getting my app to rotate since switching to Xcode 4 and iOS 5. After tearing my hair out, I created a brand-new test project to see if I could get a bare-bones app to rotate.
I created the test project using the 'Empty Application' template. All I added to this template was a UINavigationController, with a UIViewController pushed onto it. There is a nib file for the UIViewController, with one label that says 'Hello'.
On the target Summary screen, I clicked in all the buttons for 'Supported Device Orientations'.
In the .m files for the Navigation and View controller code I changed shouldAutoRotate... to:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (YES);
}
The test project builds with no issues and runs perfectly. There's a navigation bar and friendly 'Hello' message, but the darn thing won't rotate!
Obviously, I am missing something pretty simple, but I can't figure out what it is. My suspicion has fallen on the .nib. Under 'Simulated Metrics', there is an attribute called Orientation. This is set to Portrait. The only other choice is 'Landscape'. If I change this setting to 'Landscape' the view in the .nib editor changes to landscape, but when I run the app, it runs in Portrait mode, and still refuses to rotate.
Hopefully, someone will get a big laugh out of my blunder and point out the goofy mistake I'm making. Please do!
in your RootViewController.m find the line
return (UIInterfaceOrientationIsPortrait( interface Orientation ) );
and you can replace this with whatever... like
return (UIInterfaceOrientationIsLandscape( interface Orientation ) );
I started out with the UISplitViewController template in Xcode 4, and added a UIImageView that covers the whole detailViewController.
When i run the project the image and views render correctly. If i rotate the device it also renders correct, but if i hit the PopoverButton while in portrait and then rotate the device the image is rendered above the rootView..
I've been trying to reproduce the bug you're experiencing, but without success. Could you provide information about how you add the image view and how you set its frame?
One possible solution that I can think of is setting:
self.view.clipsToBounds = YES;
in viewDidLoad of the detail view controller.
It would however be great if you could provide some code, so that I can reproduce the bug and tell you what's wrong.
Please note that this question is from 2008 and now is of only historic interest.
What's the best way to create an iPhone application that runs in landscape mode from the start, regardless of the position of the device?
Both programmatically and using the Interface Builder.
Historic answer only. Spectacularly out of date.
Please note that this answer is now hugely out of date/
This answer is only a historical curiosity.
Exciting news! As discovered by Andrew below, this problem has been fixed by Apple in 4.0+.
It would appear it is NO longer necessary to force the size of the view on every view, and the specific serious problem of landscape "only working the first time" has been resolved.
As of April 2011, it is not possible to test or even build anything below 4.0, so the question is purely a historic curiosity. It's incredible how much trouble it caused developers for so long!
Here is the original discussion and solution. This is utterly irrelevant now, as these systems are not even operable.
It is EXTREMELY DIFFICULT to make this work fully -- there are at least three problems/bugs at play.
try this .. interface builder landscape design
Note in particular that where it says "and you need to use shouldAutorotateToInterfaceOrientation properly everywhere" it means everywhere, all your fullscreen views.
Hope it helps in this nightmare!
An important reminder of the ADDITIONAL well-known problem at hand here: if you are trying to swap between MORE THAN ONE view (all landscape), IT SIMPLY DOES NOT WORK. It is essential to remember this or you will waste days on the problem. It is literally NOT POSSIBLE. It is the biggest open, known, bug on the iOS platform. There is literally no way to make the hardware make the second view you load, be landscape. The annoying but simple workaround, and what you must do, is have a trivial master UIViewController that does nothing but sit there and let you swap between your views.
In other words, in iOS because of a major know bug:
[window addSubview:happyThing.view];
[window makeKeyAndVisible];
You can do that only once. Later, if you try to remove happyThing.view, and instead put in there newThing.view, IT DOES NOT WORK - AND THAT'S THAT. The machine will never rotate the view to landscape. There is no trick fix, even Apple cannot make it work. The workaround you must adopt is having an overall UIViewController that simply sits there and just holds your various views (happyThing, newThing, etc). Hope it helps!
From the Apple Dev Site:
To start your application in landscape
mode so that the status bar is in the
appropriate position immediately, edit
your Info.plist file to add the
UIInterfaceOrientation key with the
appropriate value
(UIInterfaceOrientationLandscapeRight
or
UIInterfaceOrientationLandscapeLeft),
as shown in Listing 2.
Listing 2: Starting your application
in landscape mode
<key>UIInterfaceOrientation</key>
<string>UIInterfaceOrientationLandscapeRight</string>
Summary and integration from all the posts, after testing it myself; check the update for 4.x, 5.x below.
As of 3.2 you cannot change the orientation of a running application from code.
But you can start an application with a fixed orientation, although doing so this is not straightforward.
Try with this recipe:
set your orientation to UISupportedInterfaceOrientations in the Info.plist file
in your window define a 480x320 "base view controller". Every other view will be added as a subview to its view.
in all view controllers set up the shouldAutorotateToInterfaceOrientation: method (to return the same value you defined in the plist, of course)
in all view controllers set a background view with
self.view.frame = CGRectMake(0, 0, 480, 320)
in the viewDidLoad method.
Update (iOS 4.x, 5.x): the Apple iOS App Programming Guide has a "Launching in Landscape Mode" paragraph in the "Advanced App Tricks" chapter.
References:
interface builder landscape design
interface builder landscape design-1
First I set in info.plist
<key>UIInterfaceOrientation</key>
<string>UIInterfaceOrientationLandscapeRight</string>
then I put this code in applicationDidFinishLaunching:
CGAffineTransform rotate = CGAffineTransformMakeRotation(1.57079633);
[window setTransform:rotate];
CGRect contentRect = CGRectMake(0, 0, 480, 320);
window.bounds = contentRect;
[window setCenter:CGPointMake(160.0f, 240.0f)];
This way I can work on the view in Interface Builder in landscape mode.
sasb's and michaelpryor's answer appears to be correct, but if it's not working for you, try this alternative:
- (void)applicationDidFinishLaunchingUIApplication *)application {
application.statusBarOrientation = UIInterfaceOrientationLandscapeRight;
}
Or this one:
[[UIDevice currentDevice] setOrientation:UIInterfaceOrientationLandscapeRight];
Or this one:
[application setStatusBarOrientation: UIInterfaceOrientationLandscapeRight animated:NO];
You may also have to call window makeKeyAndVisible; first.
A few links: Developing in landscape mode, iPhone SDK: How to force Landscape mode only?
#Robert: please refer to The iPhone SDK, NDA, and Stack Overflow.
I'm surprised no one has come up with this answer yet:
In all my tests when a dismissing a modal view controller the parent view controller's preferred orientation set in shouldAutorotateToInterfaceOrientation is honored even when part of a UINavigationController. So the solution to this is simple:
Create a dummy UIViewController with a UIImageView for a background. Set the image to the default.png image your app uses on startup.
When viewWillAppear gets called in your root view controller, just present the dummy view controller without animation.
when viewDidAppear gets called in your dummy view controller, dismiss the view controller with a nice cross dissolve animation.
Not only does this work, but it looks good! BTW, just for clarification i do the root view controller's viewWillAppear like this:
- (void)viewWillAppear:(BOOL)animated
{
if ( dummy != nil ) {
[dummy setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
[self presentModalViewController:dummy animated:NO];
[dummy release];
dummy = nil;
}
...
}
The latest iPhone OS Programming Guide has a full section on this, with sample code. I am sure this is a recent addition, so maybe you missed it. It explains all the conditions you have to comply with; basically...
set the Info.plist properties (this changes the position of the status bar, but not the view)
rotate your view manually around its center, on either your UIViewController viewDidLoad: method or your applicationDidFinishLaunching: method or implement auto rotation ("Autoresizing behaviors", page 124)
Look for "Launching in Landscape Mode", page 102.
See this answer: Landscape Mode ONLY for iPhone or iPad
add orientation to plist
shouldAutorotateToInterfaceOrientation = YES in all files
Although if you're using mixed modes, you might be better off with
[[UIDevice currentDevice] setOrientation:UIInterfaceOrientationLandscapeRight];