shouldAutorotateToInterfaceOrientation is not working in iOS 5 - ios

Question

I saw this stackoverflow post:shouldAutorotateToInterfaceOrientation is not working in iOS 6. The answer was to add a category called RotationIn_IOS6. I have done that and the views for the different viewcontrollers are working correctly in iOS6. The problem is in iOS5.
I only need a few views to rotate in all directions, the rest should be in portrait or either PortraitUpsideDown. The problem i face is that either all don't rotate(code1) or after it rotates to landscape, it remains in the same orientation until you rotate back to portrait(code2).
Code1:
#implementation UINavigationController (RotationIn_IOS6)
-(BOOL)shouldAutorotate
{
return [[self.viewControllers lastObject] shouldAutorotate];
}
-(NSUInteger)supportedInterfaceOrientations
{
return [[self.viewControllers lastObject] supportedInterfaceOrientations];
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return UIInterfaceOrientationIsPortrait(interfaceOrientation);
}
#end
Code 2:
#implementation UINavigationController (RotationIn_IOS6)
-(BOOL)shouldAutorotate
{
return [[self.viewControllers lastObject] shouldAutorotate];
}
-(NSUInteger)supportedInterfaceOrientations
{
return [[self.viewControllers lastObject] supportedInterfaceOrientations];
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
if([self.visibleViewController isKindOfClass:[MyClassToRotate class]])
{
return [self.visibleViewController shouldAutorotateToInterfaceOrientation:interfaceOrientation];
}
else
{
return UIInterfaceOrientationIsPortrait(interfaceOrientation);
}
}
Need some guidance on this. Not sure how to solve this.
EDIT:
Code3:
1) Removed the shouldAutorotateToInterfaceOrientation from the Category.
2) Added this code to my particular class
- (BOOL)shouldAutorotate
{
//returns true if want to allow orientation change
return TRUE;
}
- (NSUInteger)supportedInterfaceOrientations
{
//decide number of origination tob supported by Viewcontroller.
return UIInterfaceOrientationMaskAll;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
//from here you Should try to Preferred orientation for ViewController
return TRUE;
}
Result -> All the viewcontroller locked in portrait. Cannot access PortraitUpsideDown. Once in my viewcontroller, it can rotate, but when you get out of the viewcontroller, locked in landscape..
EDIT 2:
Each viewcontroller contains these code:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (NSUInteger)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskPortrait;
}
- (BOOL)shouldAutorotate {
return NO;
}

Answer 1

No need to override shouldAutorotateToInterfaceOrientation: in the navigation controller category instead for iOS 5 each of your view controller should implement shouldAutorotateToInterfaceOrientation: with the supported orientation. The supported orientations determined by the container controller(navigation controller) is only in the iOS6 and above. In lower version it will call the shouldAutorotateToInterfaceOrientation: of the child view controller which is going to display

Answer 2

To solve that problem i've subclassed UINavigationController instead of use a category:
MyNavigationcontroller.h
#import <UIKit/UIKit.h>
#interface MyNavigationcontroller : UINavigationController
#end
MyNavigationcontroller.m
#import "MyNavigationcontroller.h"
#interface MyNavigationcontroller ()
#end
//Set your init...
-(BOOL)shouldAutorotate {
if ([[self.viewControllers lastObject] isKindOfClass:NSClassFromString(#"YourClass")])
return YES;
}
return NO;
}
-(NSUInteger)supportedInterfaceOrientations {
if ([[self.viewControllers lastObject] isKindOfClass:NSClassFromString(#"YourClass")]) {
return UIInterfaceOrientationMaskAll;
}
return UIInterfaceOrientationMaskPortraitUpsideDown;
}
#end
Then in each viewcontroller override:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return (interfaceOrientation == UIInterfaceOrientationMaskPortraitUpsideDown);//or your orientation
}
Then, at launch, in the didFinishLaunchingWithOptions: of your app delegate:
NSString *reqSysVer = #"6.0";
NSString *currSysVer = [[UIDevice currentDevice] systemVersion];
if ([currSysVer compare:reqSysVer options:NSNumericSearch] != NSOrderedAscending) {
self.navigationController = [[MyNavigationcontroller alloc] initWithRootViewController:masterViewController];//IOS 6
}else{
self.navigationController = [[UINavigationController alloc] initWithRootViewController:masterViewController];
}
self.window.rootViewController = self.navigationController;

Answer 3

The simplest way is Target->General->Deployment Info and tick the orientations you want. E.g. tick only portrait and the app will not auto rotate.