Issue in autorotating UIViecontrollers in UINavigationcontroller - ios

Question

I'd downloaded a sample from this tutorial site about rotating the viewcontrollers in navingation controllers.
That sample project functionality
Support potrait for FirstviewController
Support all orientations for second view controller(pushed from first VC)
What I need is,
FirstviewController should support all orientations
Second view controller(pushed from first VC) should support potrait alone.
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

Answer 1

I suggest an easier way to solve this issue.
Select your project's target and configure it like 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.