CODEWITHSUNDEEP
iosobjective-cuiviewcontrolleruinavigationcontrollerautorotate
Nazik
Nazik

Reputation: 8444

Issue in autorotating UIViecontrollers in UINavigationcontroller

I'd downloaded a sample from this tutorial site about rotating the viewcontrollers in navingation controllers.

That sample project functionality

What I need is,

What I did was, just swapped the codes in the view controllers

In first view controller

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return YES;
}
- (BOOL)shouldAutorotate  
{
    return YES;
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskAll;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation 
{
    return UIInterfaceOrientationPortrait;
}

In Second view controller and

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (BOOL)shouldAutorotate
{
    return YES;
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationPortrait;
}

But, both the view controllers are rotating.

How can I fix this issue? Any suggestions, please share.

----EDIT----

If I rotate the simulator to landscape before pushing, second VC is also in landscape view.

If I push to second vc in potrait, the second VC is in potrait mode(it's not rotating if I rotate there.)

I put log in customNavigationcontroller NSLog(@"self.topViewController.class %@",self.topViewController.class);. It's only logging for firstview controller after pushing to second vc it's not logging

Upvotes: 0

Views: 74

Answers (1)

metronic
metronic

Reputation: 455

I suggest an easier way to solve this issue.

Select your project's target and configure it like this:

Select your target and set this

Then go to Appdelegate.m and paste:

- (UIViewController*)topViewController {
return [self topViewControllerWithRootViewController:[UIApplication sharedApplication].keyWindow.rootViewController];
}

- (UIViewController*)topViewControllerWithRootViewController:(UIViewController*)rootViewController {
// Handling UITabBarController
if ([rootViewController isKindOfClass:[UITabBarController class]]) {
    UITabBarController* tabBarController = (UITabBarController*)rootViewController;
    return [self topViewControllerWithRootViewController:tabBarController.selectedViewController];
}
// Handling UINavigationController
else if ([rootViewController isKindOfClass:[UINavigationController class]]) {
    UINavigationController* navigationController = (UINavigationController*)rootViewController;
    return [self topViewControllerWithRootViewController:navigationController.visibleViewController];
}
// Handling Modal views
else if (rootViewController.presentedViewController) {
    UIViewController* presentedViewController = rootViewController.presentedViewController;
    return [self topViewControllerWithRootViewController:presentedViewController];
}
// Handling UIViewController's added as subviews to some other views.
else 
{
    for (UIView *view in [rootViewController.view subviews])
    {
        id subViewController = [view nextResponder];    // Key property which most of us are unaware of / rarely use.
        if ( subViewController && [subViewController isKindOfClass:[UIViewController class]])
        {
            return [self topViewControllerWithRootViewController:subViewController];
        }
    }
    return rootViewController;
    }
}

Now here's the fun part.

Put this method on AppDelegate.m,you can decide the orientation of every controller here.

- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {

id presentedViewController = [self topViewController];
NSString *className = presentedViewController ? NSStringFromClass([presentedViewController class]) : nil;

if (window && [className isEqualToString:@"FirstViewController"]) { //FirstviewController should support all orientations
    return UIInterfaceOrientationMaskAll;
} else {
    return UIInterfaceOrientationMaskPortrait; //Second view controller(pushed from first VC) should support potrait alone.
}
}

You can then remove all the other methods you've added such as shouldAutorotateToInterfaceOrientation, shouldAutorotate , supportedInterfaceOrientations , preferredInterfaceOrientationForPresentation. All these methods are now all unnecessary.

-----Edit-----

Simply using 

 [[UIDevice currentDevice] setValue:[NSNumber numberWithInt:UIInterfaceOrientationPortrait] forKey:@"orientation"];

in all view controllers where I need potrait will do the trick. no other things needed.

Upvotes: 1

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