CODEWITHSUNDEEP
iosobjective-ccocoa-touchorientation
Tim
Tim

Reputation: 4101

Default app orientation

I have an app written in an older version of Xcode. Right now I'm using Xcode 4.6.1. This is an app I inherited from another developer that was developed outside the company.

One of the problems with this app is its interface. It should default to LandscapeLeft (this is the value set in the pList file). The app ignores this directive and instead defaults to portrait mode.

Is there something I need to do to force the code to honor this value? I'm relatively new to iOS/Objective-C. The code compiles and runs, it's just the interface isn't doing what I want.

It's a little easier since this is an iPad only app.

Edit I've tried adding the following code to one of my problematic viewControllers, but it's not being honored. Any thoughts on how to force this view to landscape? (Is there a setting in the IDE - it looks like Xcode used to have an orientation attribute, but I can't find it in 4.6.1)

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Overriden to allow any orientation.
    return ((interfaceOrientation==UIInterfaceOrientationMaskLandscapeLeft) || (interfaceOrientation == UIInterfaceOrientationMaskLandscapeRight));
}

- (NSUInteger) supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscapeLeft;
}

- (NSInteger) supportedInterfaceOrientationsForWindow
{
    return UIInterfaceOrientationMaskLandscape;
}

- (BOOL) shouldAutoRotate
{
    return YES;
}

Upvotes: 4

Views: 6951

Answers (12)

Keaton
Keaton

Reputation: 127

Click on your Project file in Xcode. Then click on 'Targets'. Choose you orientation (Scroll down!) Make sure in IB that the View (Under inspector) is set to portrait.

Upvotes: 0

RhodanV5500
RhodanV5500

Reputation: 1107

The rootViewController-property was added to the UIWindow-class in iOS 4. Usually this value is set in the UIApplicationDelegate (in your case probably AppDelegate.m). If the rootViewController-property is not correct rotation-events sometimes don't get passed properly through the view-hierachy.

Try self.window.rootViewController = myRootViewController; if it's not there already.

Upvotes: 0

osanoj
osanoj

Reputation: 1035

Are you using iOS 6.0 or higher? Then try implementing the preferredInterfaceOrientationForPresentation method also.

- (UIInterfaceOrientation) preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationLandscapeLeft;
}

In case your root view is a UINavigationController you might want to subclass that and implement the new orientation methods in it.

When I want to support different default orientation in different UIViewController pushed to the same navigation controller I have a custom UINavigationControler kind of like this:

@implementation MyNavigationController

- (BOOL)shouldAutorotate;
{
    return YES;
}

- (NSUInteger) supportedInterfaceOrientations
{
    if ([[self topViewController] respondsToSelector:@selector(supportedInterfaceOrientations)])
        return [[self topViewController] supportedInterfaceOrientations];
    else
        return [super supportedInterfaceOrientations];
}

- (UIInterfaceOrientation) preferredInterfaceOrientationForPresentation
{
    if ([[self topViewController] respondsToSelector:@selector(preferredInterfaceOrientationForPresentation)])
        return [[self topViewController] preferredInterfaceOrientationForPresentation];
    else
        return [super preferredInterfaceOrientationForPresentation];
}

@end

Upvotes: 0

K..
K..

Reputation: 77

Just open your plist and edit the "Supported interface orientations" and drag the "Landscape (left home button)" to the top over the "Portrait (bottom home button)"

by default the top value is loaded first if you are supporting pre-iOS6 and running this in post-iOS6 SDK.

Upvotes: 0

Dimitar K
Dimitar K

Reputation: 912

Check post Launching application in landscape orientation for IPad
Quoting jhhl from there:

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

Edit: one more thing - the problem may be in completely different place. Are you sure you have proper view controller hierarchy? If a controller has no been added the right way to the window or another controller the rotation events and logic will not work. In fact I just checked an app I wrote a couple of months ago which had the same issue - iPad, must start in landscape. Didn't take anything fancy, but setting the orientations in the Info.plist, attaching the rootViewController and setting the proper return values in the rotation methods.

Upvotes: 1

Esko918
Esko918

Reputation: 1469

It seems like you have all the rotation code properly implemented in your view controllers so maybe this is your problem. A while back i was in your shoes where i set up my code just how apple specified it to be in order to load my app in landscape mode but for some reason it just wasnt loading the app correctly. So after a bunch of forum posts and many many forum replies it turned out in my view controller i wasnt setting the view controllers view in loadView. So make sure in your load view method of the view controller the view you want the root view to be is set as is the view controllers self.view. Tell me how it goes

Upvotes: 1

user2277872
user2277872

Reputation: 2973

In older Xcode versions, all you have to do is go the .xib file, select the box with the arrows that says Portrait, and change it to Landscape, and then in the .m file, do:

 - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Overriden to allow any orientation.
return interfaceOrientation==UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight;
 }

Upvotes: 0

Ashvin
Ashvin

Reputation: 9017

I hope this will help you. Add one of this(which orientation you want) method in AppDelegate.m class

For force fully run application in landscape mode:

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    return UIInterfaceOrientationMaskLandscape;
}

For force fully run application in Portrait mode:

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    return UIInterfaceOrientationMaskPortrait;
}

Upvotes: 7

Sharon Nathaniel
Sharon Nathaniel

Reputation: 1467

Try this, we had the same issue.

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    BOOL returningValue=NO;

    if (interfaceOrientation==UIInterfaceOrientationIsPortrait(interfaceOrientation))
    {
        returningValue=NO;
    }
    else if(UIInterfaceOrientationIsLandscape(interfaceOrientation))
    {
        returningValue=YES;
    }

    return returningValue;
}

Upvotes: 0

Xcoder
Xcoder

Reputation: 1807

Prior to iOS 6 i.e in iOS 5 and earlier, an app and a view controller’s rotation is controlled by the individual viewcontrollers while in iOS 6 and later, the view controllers responsible for rotation are the container Viewcontrollers such as UINavigationController & UITabBarController . What are you using as the rootviewcontroller in your project??

Autorotation is clearly explained here in this post- Autorotation in iOS

Upvotes: 0

GayleDDS
GayleDDS

Reputation: 4533

Launching in Landscape Mode

In iOS 5 you need to implement the following method in everyone of your view controllers.

// Called only in IO 5 and earlier.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationLandscapeRight ||
            interfaceOrientation == UIInterfaceOrientationLandscapeLeft );
}

And set UIInterfaceOrientation "Initial interface orientation " to UIInterfaceOrientationLandscapeRight in your Info.plist

And lay out your views in landscape mode.

Per Apple's developer docs

Upvotes: 0

gberginc
gberginc

Reputation: 447

Check whether view controllers in the app force view orientation. Check section 'Handling View Rotations' and tasks related to rotation in Apple's documentation:

http://developer.apple.com/library/ios/documentation/UIKit/Reference/UIViewController_Class/Reference/Reference.html

Upvotes: 3

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