I have my iPad application created using the SplitView template.
I wonder what is the best way to restrict my application to landscape mode?
I have tried overriding shouldAutorotateToInterfaceOrientation: method in DetailViewController.m
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return UIInterfaceOrientationIsLandscape(interfaceOrientation);
}
but 4.2 GM is still buggy and it fails to show the controller view. What other choices do I have?
Thanks in advance.
UPDATE1
I have already filed a bug report:
Bug ID #8620135
My app is almost finished and I have to find a work-arround since I don't think they are going to solve this before 4.2 officially comes out (GM is already out!)
In order to recreate the bug, just use SplitView template and override above method in any of the UIViewControllers (RootViewController or DetailViewControllers)
UPDATE2
I have found a work-around. (See UPDATE3 for the complete work-around)
Set UISupportedInterfaceOrientations only to support Landscape , this will force the app to start in landscape mode allowing DetailViewController to start correctly(hence shown correctly)
<key>UISupportedInterfaceOrientations</key>
<array>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
But if you rotate the device, it turns Portrait mode!!!, so is still necessary to override shouldAutorotateToIntercafeOrientation: as above
Discussion:
If this wouldn't be a bug I would expect a warning or execution error, exception or something when starting the app in a orientation that is not supported by the view controller. Besides, why only DetailViewController does not show? If this would be specification, then RootViewController should also fail to load then. Don't you think?
thanks for you help... ;)
UPDATE3
After further tests I have realized that above work-around does not work in some cases. For example when starting the app when the device is in landscape won't work!.
The real problem seems to be that in iOS4.2GM UISplitViewController needs all its controllers have all rotations to be available at its load time. So is necessary to trick him so it loads in Landscape mode and then not allow him to rotate its view controllers.
So here is the new work-around for this annoying iBug.
Step1:
Set Info.plist like so:
<key>UISupportedInterfaceOrientations</key>
<array>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
Step2
Set a new flag in DetailViewController.m or .h (from SplitView Template)
BOOL lockRotation = NO; //WORK-ARROUND: Bug ID# 8620135.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
//WORK-ARROUND: Bug ID# 8620135.
if (lockRotation) {
return UIInterfaceOrientationIsLandscape(interfaceOrientation);
}else{
return YES;
}
}
- (void)viewDidLoad {
[super viewDidLoad];
//set NO here since this is called before shouldAutorotateToInterfaceOrientation method is called
lockRotation = NO; //WORK-ARROUND: Bug ID# 8620135.
}
- (void)viewDidAppear:(BOOL)animated {
//set YES as soon as possible, but after shouldAutorotateToInterfaceOrientation method was called
lockRotation = YES; //WORK-ARROUND: Bug ID# 8620135.
[super viewDidAppear:animated];
}
IMPORTANT NOTE:
Please note that this bug only appears when the UISplitViewController is loaded and not everytime
the its view appears. Hence, to see this bug make sure the app was terminated before.
I asked a question with a bounty of 500 that seems to be the same thing you're facing.
From my limited experience it is much easier to make a landscape-only iPhone app than a landscape-only iPad app. I'm not sure why there is any difference, but the steps Apple says to take to make it landscape-only do not work on their own.
Try this (it works):
-(BOOL)shouldAutorotateToInterfaceOrientation(UIInterfaceOrientation)toInterfaceOrientation {
if(toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
return YES;
}
else
{
return NO;
}
}
Check out this iPhone app in landscape mode, if you haven't already. I was going to suggest simply adding UISupportedInterfaceOrientations to your Info.plist and specifying the two landscape orientations. But, apparently, this is not sufficient, according to answers to cited question.
I believe this is a BUG, I faced this problem also. It is something to do with
UIInterfaceOrientationLandscapeLeft
To replicate this situation:
1) Create a new iPad project using UISplitViewController template
2) Edit info.plist
Supported interface orientations
-Landscape (left home button)
-Landscape (right home button)
3) DetailViewController.m
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// return YES;
NSLog(#"RotateToInterface:[%d] vs LandscapeLeft[%d]", interfaceOrientation, UIInterfaceOrientationLandscapeLeft);
return interfaceOrientation == UIInterfaceOrientationLandscapeLeft;
}
4) Run it....You will see a blank black view. and no matter how you turn. "UIInterfaceOrientationLandscapeLeft" never detected.
By the way, nacho4d's adding BOOL check work-around is working. Thumbs UP :)
Related
Currently I have only portrait mode in iPhone application. I would like to permit landscape mode for one controller in application but unfortunately I'm not able to make it work.
I have these settings in my plist file:
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationLandscapeRight</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
</array>
And I implemented these methods in my controller:
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
-(NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskAllButUpsideDown;
}
-(BOOL)shouldAutorotate
{
return YES;
}
I use navigation controller in the app so I realize that it might be the problem. I subclassed the UINavigationController and implemented again shouldAutorotateToInterfaceOrientation, supportedInterfaceOrientations and shouldAutorotate in the same way as above. Of course for I use subclassed navigation controller to show the controller which should have ability to rotate. I also tried to overwrite the methods of navigation controller by category but it also doesn't work.
I don't work on the application from the beginning, I inherited the codes. If there is some possibility how to restrict landscape globally it might be my case. For testing I use iPhone 6.0 simulator but my deployment target is 5.0. I appreciate any tips / help.
iOS6 also requires that you set a rootViewController for your window rather than adding the controller's view as a subview.
If you are doing something like this:
[window addSubview:someController.view];
then you can try changing it to this:
[window setRootViewController:someController];
Also look at this link. For ios6, Apple introduced these two methods :
supportedInter
faceOrientations:
shouldAutorotate
Hope it helps.
Shumais Ul Haq
Try this on Controller youwant to give landscape orientation
// override to allow orientations other than the default portrait orientation
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// return YES for supported orientations
return UIInterfaceOrientationIsLandscape(interfaceOrientation); // support only landscape
}
Go to target window.
Click on Summary tab.
iPhone/iPad Deployment info -> Set the supported interface orientations for iPhone & iPad as per your requirement. See following image for more reference.
I have a strange problem in an iPhone app I'm developing. I want my app to support ONLY portrait mode, but for some reason I can't do it (device & simulator).
To support only portrait mode I did as follow:
In the TARGET summary section on Xcode, I chose only portrait.
All my ViewControllers implements shouldAutorotateToInterfaceOrientation
But as I said it won't work, and the strange result is that the app support ALL the orientations (portrait, upside down, landscape left, landscape right).
Any ideas?
this how I implement shouldAutorotateToInterfaceOrientation
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
NSLog(#"Checking orientation %d", interfaceOrientation);
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
I notice just now that when I rotate the phone I get this message:
"Two-stage rotation animation is deprecated. This application should
use the smoother single-stage animation."
What does it means?
On the Target Summary choose portrait only.
Go to info.plist file. Right Click open it as source code. And look for this line. For me in iPad its like this:
<key>UISupportedInterfaceOrientations~ipad</key>
Delete all other orientation and keep the only one which you need..Like this :
<array>
<string> UIInterfaceOrientationPortrait </string>
</array>
It is possible to have multiple ViewControllers on the screen. The UITabBarController is itself a UIViewController, and it only passes shouldAutorotateToInterfaceOrientation: requests to the viewControllers within if it chooses. The default implementation does this, but if you subclass it, the code XCode generates (as of iOS 5.1) does not.
check your plist and make sure the key there is set correctly.
I want my iPad app to stop rotation as you rotate the iPad. I want to stop rotate every view.
Any ideas help?
if you want stop rotation for whole app then simply in app info.plist file changed Supported interface orientations ,Initial interface orientation property to portrait or landscape depends on you
In iOS6 shouldAutorotateToInterfaceOrientation has be deprecated. Override both supportedInterfaceOrientations and preferredInterfaceOrientationForPresentation instead.
Please see
Just check the auto-resizing property of your view controller.
(Fixed syntax error)
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
if(interfaceOrientation == UIInterfaceOrientationPortrait)
return YES;
return NO;
}
In My Project's info.plist I have deleted some key on the iPad Supported interface orientations like the following image (I have only given support for the portrait orientation)
The main idea of global controllable rotation lock is to write UIViewController category containing lock mechanism for every view controller.
You simply need to modify supportedInterfaceOrientations method globally
- (NSUInteger)supportedInterfaceOrientations
{
return __orientation;
}
Here __orientation is the static variable which can be set via category method.
The full realization of the category is presented here
Please update your projectname.plist like this. Supported interface orientations have only one object "Portrait (bottom home button)"
I strongly advise against stop rotation on iPad because supporting rotation is a must on the iPad. This is because the iPad does not have a normal way in which it will be held unlike the iPhone, which is normally held in portrait view (AKA Vertical). So you have to leave the choice to the user to eventually lock the orientation
The HIG do not actually state this as a requirement, but as a recommendation but there are many app that was rejected by this issue.
By the way if you want to this for a limit number of view controller you should implement:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
if(interfaceOrientation == UIInterfaceOrientationPortrait){
return YES;
}
}
Facing one issue with launching application in landscape orientation for IPad.
I have developed IPhone application which later I ported to IPad.
I have made setting regarding orientation in info.plist
[ UISupportedInterfaceOrientations~ipad ] to support all orientation UIInterfaceOrientationPortrait , UIInterfaceOrientationPortraitUpsideDown , UIInterfaceOrientationLandscapeLeft , UIInterfaceOrientationLandscapeRight.
but when I start IPad application in the landscape mode, it always start in the potrait mode.
Along this
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{ return YES; }
help me, if I am missing something with this..
Thanks,
Sagar
here's something I also discovered: setting the initial interface orientation in your info.plist is being ignored if you have Supported interface orientations set up with another orientation in the first slot! Put your initial orientation there as well - and the simulator will launch correctly, as will the app. this drove me nuts for a long time!
Put UISupportedInterfaceOrientations into your -Info.plist, with a setting for each orientation you support. This is used to see which orientation the app can start in. From there onwards it will ask your view controllers.
Sagar - I had the same issue but was able to resolve it.
Like yours, my app started as an iPhone app which I "upgraded" to a Universal app using the XCode wizard. I noticed that when running on the actual iPad, starting in landscape, the app would start in Portrait, then maybe rotate to Landscape. On the simulator, starting in landscape, the app would start in Landscape, then the simulator would rotate to Portrait.
On the iPad, my app is a split-view app with TabBarControllers on left and right. Each tab is a view controller that returns YES to shouldAutoRotateToInterfaceOrientation.
I noticed that a brand-new wizard-generated, simple-case with a splitviewcontroller, Universal app didn't have this problem.
The difference I found between my app and the simple-case was that I wasn't adding my splitview-controller's view to the app window in applicationDidFinishLaunchingWithOptions. Instead I was showing a "loading" view at this stage, then later when an initialization thread completed I'd add my splitviewcontroller's view (and hide the "loading" view).
When I added my splitviewcontroller's view to the app window during the call to applicationDidFinishLaunchingWithOptions everything started working fine.
There must be some magic that happens on return from applicationDidFinishLaunchingWithOptions???
Is your app similar to mine in that it isn't adding the main view controller's view to the window during applicationDidFinishLaunchingWithOptions?
As pointed out in a number of posts, you must set up the info.plist with both the supported and the initial interface orientations. However, the bigger issue is when does the initial orientation become effective? The answer is NOT when your view controller receives the "viewDidLoad" message. I found that on the iPad-1, running iOS 5.0, the requested initial orientation becomes effective only after several "shouldAutorotateToInterfaceOrientation"
messages are received.(This message passes the UIInterfaceOrientation parameter to the receiver.) Furthermore, even if the orientation says it is in Landscape mode, it may not be! The only way I found to be sure that the view is in Landscape mode is to test that the view height is less than the view width.
The strategy that worked for me was to lay out the subViews I wanted when the "viewDidLoad" message was received but to delay actually adding those subViews to the view until the controller received a valid "shouldAutorotate.." message with the orientation set to Landscape mode. The code looks something like:
(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
// N.B. Even when the interface orientation indicates landscape mode
// this may not really be true. So we insure this is so by testing
// that the height of the view is less than the width
if (interfaceOrientation == UIInterfaceOrientationLandscapeLeft ||
interfaceOrientation == UIInterfaceOrientationLandscapeRight)
{
CGRect viewBounds = [[self view] bounds];
if ( viewBounds.size.height < viewBounds.size.width )
[self addMySubViews];
return YES;
}
else
return NO;
}
Apple has just released iOS 5.1, so this behavior may have changed. But I expect the code that is here should still work.
I have an iPad app that works correctly except for an odd issue during launch. I've read several questions & answers regarding orientation, but this still has me stumped.
The root view controller is a UITabBarController with 3 tabs. Two of the tabs are have custom view controllers (one based off of UIViewController, the other off of UITableViewController) and both suffer from this launch orientation problem. The third tab is a custom UITableViewController that's embedded in a UINavigationController.
OK, here's the problem. If I start the app in Portrait orientation, everything works great. If I start it in Landscape orientation, the 3rd tab works perfectly. However, the first 2 tabs come up in Portrait orientation, even though:
The status bar orientation correctly shows as landscape (spread across the screen).
The Tab Bar view correctly shows as landscape with the tabs centered.
All views return YES for shouldAutorotateToInterfaceOrientation for all orientations.
If I call [self interfaceOrientation] or [[UIApplication sharedApplication] statusBarOrientation] in the view controller's viewWillAppear, then the 3rd tab's view controller reports 3 (landscape) but the first two view controllers report 1 (portrait) even though the status bar is clearly landscape!
If I rotate the iPad to portrait and back to landscape, then all 3 tabs' views rotate correctly (and the methods above return 3, as expected).
Also, if I tap on any other tab and then back on tab #1 or #2, then they will now rotate correctly, even without rotating the iPad itself!
What am I missing?
You have to add the supportedDeviceOrientations to your "myApp.plist" .
Click on this list, add the key "Supported interface orientations" and add the supported interface orientations. This solved the problem for me.
For further informationen follow this link and go to the section "The Application Bundle": http://developer.apple.com/iphone/library/documentation/General/Conceptual/iPadProgrammingGuide/CoreApplication/CoreApplication.html
I finally found my answer: I just forgot this in my LoadingController.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return YES;
}
I have found that the device orientation starts out with nothing. And should return YES for Unknown. This will allow it to orient the device with the correct launch orientation.
Here is the code I used to propigate this message up to the legacy messages.
- (BOOL)shouldAutorotate{
UIDeviceOrientation orientation = [UIDevice currentDevice].orientation;
if (orientation == UIDeviceOrientationUnknown) return YES;
BOOL result = [self shouldAutorotateToInterfaceOrientation:orientation];
return result;
}
notice I return YES if orientation == UIDeviceOrientationUnknown. This corrected my loading problem.
The solution is to add a key
UISupportedInterfaceOrientation
to you Info.plist with an array of strings specifying the suppored interface orientations at launch time, these are
UIInterfaceOrientationPortrait
UIInterfaceOrientationPortraitUpsideDown
UIInterfaceOrientationLandscapeLeft
UIInterfaceOrientationLandscapeRight
However, there is the follwing issue which may lead to confusion: At least with SDK 3.2 and iPad Simulator from XCode 3.2.4 I found that (at least some) Info.plist settings appeared to be cached and/or are not updated when installing the app. That is, adding the key above and installing and launching the app in the simulator had no effect. However, deleting the app from the simulator fixed the problem an the newly installed app behaved as specified.
In your app delegate's applicationDidFinishLaunchingWithOptions: method, after you add your view controller's view to the window, add the following:
[myViewController viewDidLoad];
If necessary, this will trigger a call to the shouldAutorotateToInterfaceOrientation: method.
just try this
- (BOOL)shouldAutorotateToInterfaceOrientation: UIInterfaceOrientation)interfaceOrientation {
return (interfaceOrientation==UIInterfaceOrientationPortraitUpsideDown);<br>
}