There are many questions and answers about the changed rotation in iOS6.
But I have really not solved one problem about that.
Using Xcode 4.5.2.
If I do not set anything in the info.plist or by the buttons “Supported Interface Orientations”, the app will rotate between portrait and landscape depending of the device rotation.
Now I mean the rotation caused by how holding the device, not a default orientation when opening a ViewController.
I know how to prevent landscape mode
- (BOOL)shouldAutorotate
{
return YES;
}
- (NSUInteger)supportedInterfaceOrientations
{
return (UIInterfaceOrientationMaskPortrait);
}
but it does not have any effect.
Yes it has effect if I add a FlipsideController from the NavBar. In FlipsideView the code above prevents the rotation.
In the other ViewControllers it does not have any effect at all, whatever code I write.
Take a Sample given by Apple, UICatalog.
Can anybode give me a hint how to controll the rotation for the whole table and also for a separate ViewController using code and not by the Buttons or info.plist which only gives a result for everything together which is not very practical for all views.
Related
I browsed through most of the questions and tried almost everything. But bad part is that the issue is still there.
I have a UIVIew which is always launched in landscape mode and I am presenting a second view (detailView) as a full screen modal view.
The detailview has a UIwebview on top of it.
When I present the detailView as a modal view, the webview is being shown in portrait mode.
I am returning "YES" in shouldAutoRotateToInterfaceOrientation and also have set autoresize , autoresizingMask and scalePageToFit properties.
When I rotate the device, and when the detailView is in front, the webview arranges to landscape properly.
The issue is only when I present the modalView for the first time.
Rotating the device is adjusting the layout properly.
As far as I am aware ModalViews on the iPhone do not support Landscape View. The case may be different for iPhone 5.
But it sounds like you are setting the ModalView not the WebView to landscape, I'd suggest a different approach to handling this.
For Example you could animate the DetailView in like a ModalView so it starts in the correct orientation
If you are running your app on iOS 6 you will need the following code in the modal view controller to support the landscape orientation:
- (NSUInteger)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskLandscape;
}
- (BOOL) shouldAutorotate {
return YES;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
return UIInterfaceOrientationLandscapeLeft;
}
Also, make sure you are testing on the actual device as opposed to the simulator because auto-rotation behaves differently on the simulator.
That will do the trick:
CGAffineTransform transform = CGAffineTransformIdentity;
webView.transform = CGAffineTransformRotate(transform,-M_PI/2);
OK. First of all, the question I had posted was not clear. My question was that, when I load a webview, in portrait, it was loading the webview elements in landscape mode(CSS), and was getting loaded as portrait mode(CSS) in landscape orientation.
Turns out that I was not applying the correct CSS style.
The fix I did was:
In ViewDidLoad and willAnimateRotation method, I am posting a notification to my javascript to update the style based on orientation :)
I am trying to make a simple iPhone game and I need the game to be in landscape mode. I can get the initial view to be landscape, but if remove the initial view and replace it with a new view (going from Main Menu to Game Screen) the new view is now in portrait mode. Also, if I switchback to the first view (removing the game screen and then creating the new menu view) the view is still in portrait mode. I have the Info.plist file set up correctly to initialize with landscape right and I have the GameViewController.m file set up with the following code:
-(BOOL) shouldAutorotateToInterfaceOrientation:
(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationLandscapeRight);
}
I have read many postings about people having troubles with setting up the landscape orientation, but they always seem to be about the initial load of the app (only displaying one view). I can't seem to find any solutions for this problem. Can someone help me?
You have stumbled on to
one of the most famous bugs on the platform!
Congratulations for spotting it! Here:
iPhone app in landscape mode, 2008 systems
be sure to read the paragraph that begins: "An important reminder of the ADDITIONAL well-known problem at hand here......." !!
It gives you the solution, which is used in all apps.
Make sure that all the view controllers that are visible on screen support the landscape orientation. I would recommend, in your shouldAutorotateToInterfaceOrientation, to return UIInterfaceOrientationIsIsLandscape(interfaceOrientation); instead of your code. This will ensure that both landscape orientation will work. Can you share a bit more how you are switching from the main menu to the game screen?
I have an app designed for iPhone that makes use of the UIImagePickerController.
The app run in landscape only up until the image picker comes into view in its default portrait.
Problem 1:
On the iPhone when I rotate the device to portrait to view the image library the image picker view seems to do a flip as if rotating from landscape to portrait?
Problem 2:
I get the dreaded warning Using two-stage rotation animation. To use the smoother single-stage animation, this application must remove two-stage method implementations.
Problem 3.
on the iPad when selecting an image the image picker is dismissed and the view is back in landscape but ...... if I then do anything that requires alert view or the keyboard they appear as if the device is in portrait? This does not happen on the iPhone???
I know problem 2 is a long running issue but please can anyone help with problems 1 & 3?
Thanks
number 3 resolved :-)
"The keyboard will show up in the orientation of the statusbar, which doesn't always change with rotations for some reason. So if you want to display that view only in landscape set [UIApplication sharedApplication].statusBarOrientation = UIInterfaceOrientationLandscapeLeft; or whichever orientation you want to prefer in your viewWillAppear method."
I have been spending many frustrating hours trying to get rotations working on the iPhone version of Tunepal.
Firstly, I have a tab bar controller, with a navigation controller controlling each of the views.
I actually only want one of my views to be able to rotate and that is the TuneDisplay.
I have a subclassed the UITabBarController and overridden the shouldAutorotateToInterfaceOrientation:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation) interfaceOrientation {
if (self.selectedViewController != nil)
{
return [self.selectedViewController shouldAutorotateToInterfaceOrientation:interfaceOrientation];
}
else
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
}
In each of the view controllers for each of the tabs I have overridden the method and returned YES for each orientation I want to support. All well and good and everything works as it should. If I try and do a rotation on a tab that doesn’t support the rotation, nothing happens.
The problem occurs if I move from a tab thats rotated to a tab that isnt supposed to support that rotation. The new tab is displayed rotated too! Screenshots for all this are included here:
http://tunepal.wordpress.com/2010/04/20/rotation-woes/
Is there any way I can make it rotate back to portrait on tapping the tab?
I have tried the unsupported setOrientation trick, but firstly it doesnt work correctly and secondly I received a warning from Apple for including it in my last build.
If (as I suspect) there is no way to limit this behavior:
How do I make the microphone image scale when I rotate the device?
How do I make the buttons and the progress bar expand to fit the witdh of the toolbar?
Also, one of the tabs that rotates ok has a table, with a search bar. The first time I rotate to the right or to the left, I get a black bar to the right of the search bar. If I subsequently rotate back and rotate again, the bar disappears! I have enabled the struts and springs things on the search bar in the interface builder and it looks like it should behave correctly.
Any ideas about how to fix this?
Ideas, feedback much appreciated
Bryan
This isn't a full answer. Rotation is seriously inconsistent. You have done the right things. Several aspects don't work in the simulator, so you need to confirm all your testing on a device. Table headers and search bars don't resize to full width in older OS versions, so stick with 3.1.3 or higher.
Commonest problems:
implement the shouldAutorotateToInterfaceOrientation: to return YES;
if you use navigation controllers the root view controller must support the orientation;
if you have a toolbar the view controller for all items must support it;
and same for a tab bar controller.
You may need to turn on orientation notifications to get more useful information out of the device:
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(orientationChanged:)
name:UIDeviceOrientationDidChangeNotification object:nil];
Remember to turn it off and remove yourself from the notifications when you are done; this is supposed to have a high overhead.
Set the view contentMode property for your image to resize; together with autoresizingMask, which you are setting in IB, you should be OK.
Remember also that you can use two different nibs for portrait and landscape modes. There is an example project that sort of does this ("WhichWayIsUp"); see the View Controller Programming Guide also ("Creating an Alternate Landscape Interface").
If the rotation methods are being called, then the UI should be rotated consistently. You will find that they aren't always called when they should be.
It isn't hard to call a rotational transform on your views to force a rotation. It shouldn't be needed, but sometimes that's the only way they will rotate.
view.transform = CGAffineTransformMakeRotation(M_PI * n);
If you get it figured out, let us know.
It sounds like you are handling the rotation correctly while the tab is displayed. However, as you know, there's no quick way to switch rotations. What you will have to do is rotate the view yourself using CGAffineTransform. See this question: Is there a documented way to set the iPhone orientation?
To scale the image, you should be able to click the arrows inside the UIImageView housing the image in Interface Builder. There's a little arrow in the upper right hand corner you can click to see how the view behaves when it's rotated to make sure it scales correctly. But you'd probably be better off not scaling the image and hadling the rotation as in the answer to the linked question.
I have a TabBar bases application, which supports Landscape orientation only for one special view (the rootview of a UINaviagtionController). Now i want to force portrait orientation for all other views for this navigationcontroller.
I have tried to use
[[UIDevice currentDevice] setOrientation:UIDeviceOrientationPortrait];
This works great but this piece of code is a private api call and I can not risk a app rejection.
I have also tried to rotate the next view manually but this rotates only the view and not the navigation or the tab bar.
Is there a similary way to force orientation change?
There is currently no way to do that.
Have a look at this question, I have the same problems. With a tabbar application, you must have everything to autorotate, or nothing. You can find ways to have shouldAutorotate answer differently on each view, but actually this does not work. I don't know if this is an intended behaviour or a bug, anyway the only viable solution I'm aware of (without using undocumented API) is to manage the rotation by yourself, and do not rely on autorotation.
This means in other words that you need to start orientation notifications (look at UIDevice, there are methods to start and stop notifications about the device orientation), then for each view you want to rotate register as observer, and manage orientation manually, like this (don't remember where I got this snippet):
// Rotates the view.
CGAffineTransform transform = CGAffineTransformMakeRotation(M_PI/2);
self.view.transform = transform;