I have a detail view where i load a help view with a button. I am using [UIViewController presentModalViewController:animated:].
In help view I am dismissing the view with a button. I am using [UIViewController dismissModalViewControllerAnimated:].
The problem is, after dismissing the help view, the detail view is in portrait mode, regardless of which orientation the device is in.
In all the view controllers, I have implemented shouldAutoRotateToInterfaceOrientation: and returned YES.
I think there are two selective solution
1.Officially available in iOS 5.0 and later, you can implement
/* call this method when your return value from shouldAutorotateToInterfaceOrientation: changes
if the current interface orientation does not match the current device orientation, a rotation may occur provided all relevant view controllers now return YES from shouldAutorotateToInterfaceOrientation: */
+ (void)attemptRotationToDeviceOrientation
See also : http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UIViewController_Class/Reference/Reference.html
2.Use the trick from Canopus's Answer. It's pretty fine with iOS 4.3 and earlier BUT It's not guarantee solution that owner answer has warned you.
Hope it helps you!
Related
I want to say in each view controller which orientation he supports and restrict it to them. This is what I tried:
Use a custom navigation controller like in one of my old posts, but that doesn't seem to work anymore. The solution is similar to iOS 6 - (BOOL)shouldAutorotate not getting called for navigation controllers pushed viewControllers
I also tried Setting Orientation in Xamarin iOS, but the app crashes on the RootViewController. I get a NullReferenceException here.
Furthermore I tried IOS 8 : Restricting orientation on a View Controller from the deleted blog from Shri Chakraborty (shrixamarin). Here the app also crashes if I use application:supportedInterfaceOrientationsForWindow:, because the RootViewController is null. The solution seems to be similar to How do I restrict orientation per view controller in iOS7 in a navigation controller hierarchy
None of the solutions seems to work. Or do I miss something important? How can I restrict the orientation that view controller A is landscape only, view controller B is portrait only and view controller C can be shown in all available orientations?
Overriding GetSupportedInterfaceOrientations() in your view controller should solve the problem:
public override UIInterfaceOrientationMask GetSupportedInterfaceOrientations () {
return UIInterfaceOrientationMask.LandscapeRight;
}
The orientations you return here will be intersected with the app's allowed orientations (project properties) or with what you allow in your app delegate. So be sure to specify all orientations there or the maximum set of orientations you want to support.
See here for documentation.
I have a screen that supports Device Orientation.
Everything is working fine except for the fact that when I rotate the device upside down (home button at top), the rotation doesn't work (it's stuck on the last landscape settings).
I know of several places needed be updated to support this:
In the VC itself, I added the methods:
In the Project Target, I updated as follow:
In the Storyboard VC Scene, I updated as follow:
What am I missing here?
You also have to allow rotating to all orientations in every parent view controller of the current main view controller. For example, if your view controller is in navigation controller, try subclassing it and override the same methods as in your example.
Edit: As #JordanC mentioned, since iOS 7 you can implement UINavigationControllerDelegate method to return custom supported orientations:
- (UIInterfaceOrientationMask)navigationControllerSupportedInterfaceOrientations:(UINavigationController *)navigationController
As #eGanges mentioned the key point could be to subclass your UITabBarController (and override supportedInterfaceOrientations) if that is your initial view controller, in that case this is the only controller you should subclass (and of course you should add all the supported interface orientations to your app Info.plist file UISupportedInterfaceOrientations key)
Have you tested on real device?
anyway try this:
- (NSUInteger)supportedInterfaceOrientations {
return (UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown);
}
I'm doing an universal ios game and I'm having an orientation problem. My app is all in landscape mode. If I do presentModelViewController is all ok, but if I do setRootViewController, the new controller appear in portrait mode.
What am I doing wrong?
I'm unsure if this was your problem, but I have an application that starts with one view controller in portrait mode and then I'm trying to present a second view controller in landscape mode. I'm using the setRootViewController technique as well so that I do not have to deallocate/reallocate the second view controller and lose my state information since users will be switching between the two views frequently.
I had the same issue where the second view controller would always be displayed in portrait mode instead of landscape, even though the view controller itself specifies that it never allows portrait mode.
The fix for me was to make sure that in the application delegate I presented the first view controller using
[window setRootViewController:controller];
instead of
[window addSubview:controller.view];
This was an older application, and the original template used addSubview by default. it seems that if there was not an original root view controller specified, the necessary orientation messages will never make it to subsequent view controllers that are set as root. Hope that helps!
Have you set the
UIInterfaceOrientation
key in your info.plist file to your desired orientation? (in this case landscape)
How does a UISplitViewController know when it has rotated so that it can trigger the appropriate behavior with managing its views? Is there some way I can manually trigger it myself? I have a split view controller owning a view that is not at the root of my hierarchy, so it is not getting the rotation events that (I think) normally allow it to handle rotation behavior.
You can try to implement UISplitViewController delegate which is:
// Landscape mode
– splitViewController:willShowViewController:invalidatingBarButtonItem:
// Portrait mode
– splitViewController:willShowViewController:invalidatingBarButtonItem:
Since the masterView (left) will show/hide accordingly when the rotation occurs, I found this is more effective compared to handling the orientation changes if each view
I guess UiSplitViewController doesn't autorotate and
iPad: SplitView does not rotate pretty much say that unless the controller's view is the root view, it won't work. Oh apple.
You could sign up for notifications of orientation changing, make sure you have shouldAutorotateToInterfaceOrientation set to YES for the rotations you want to support as well.
Apple provide the split view only for landscape but not for the portrait mode. Is there any way to achieve the splitview in portrait mode also?
[splitViewController setHidesMasterViewInPortrait:NO];
This will work. But this API is not documented(private).
Thanks,
Manjunath
For iOS5+,
Go to your detailViewController. Your detailViewController should have UISplitViewControllerDelegate. And simply just drop this code in:
- (BOOL)splitViewController:(UISplitViewController *)svc shouldHideViewController:(UIViewController *)vc inOrientation:(UIInterfaceOrientation)orientation{
return NO;
}
This will do the trick. And it is public API.
My little contribution here.
Byte's answer is correct up until iOS 7. Starting in iOS 8 you should use preferredDisplayMode
For example, to show both view controllers in portrait mode do the following:
self.splitViewController.preferredDisplayMode = UISplitViewControllerDisplayModeAllVisible;
Hope this helps!
update in iOS 8 xcode 6+
if let splitVCExists = self.splitViewController{
splitVCExists.preferredDisplayMode = UISplitViewControllerDisplayMode.AllVisible
}
doc:
https://developer.apple.com/library/ios/documentation/UIKit/Reference/UISplitViewController_class/index.html#//apple_ref/occ/instp/UISplitViewController/preferredDisplayMode
One thing I did notice is that it will try to layout the splitviewcontroller based on the preferredDisplayMode as long as there is enough space. otherwise it will choose the display mode to fit the content right. I have used it and it lays the VCs out how I want in both portrait and landscape.
Take a look at this MGSplitViewController.
It is a customized split view controller with various useful enhancements. Certainly that you can show master view in portrait.
Have a look at APSplitViewController.
Sometime back I tried to achieve a similar thing. After trying Matt's code, and unsucessfully trying to create a category I realized that the only way to do this(in a way that Apple doesn't reject your app) is to use two custom views. Refer this question.