shouldAutorotate, supportedInterfaceOrientations, preferredInterfaceOrientationForPresentation
The above methods don't get called of a UIViewController if they are inside any UINavigationController. If these methods are declared inside UINavigationController then they will get called.
For solving this make a class lets call it OrientationEnabledNavigation, it is a subclass of UINavigationController. Then implemented shouldAutorotate, supportedInterfaceOrientations, preferredInterfaceOrientationForPresentation methods inside OrientationEnabledNavigation.
OrientationEnabledNavigation.h
#import <UIKit/UIKit.h>
@interface OrientationEnabledNavigation : UINavigationController
@end
OrientationEnabledNavigation.m
#import "OrientationEnabledNavigation.h"
@interface OrientationEnabledNavigation ()
@end
@implementation OrientationEnabledNavigation
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}
- (BOOL)shouldAutorotate
{
return [self.topViewController shouldAutorotate];
// return NO;
}
- (NSUInteger)supportedInterfaceOrientations
{
return [self.topViewController supportedInterfaceOrientations];
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return [self.topViewController preferredInterfaceOrientationForPresentation];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
Then if you want to use navigation controller in your project then use OrientationEnabledNavigation. After that if you implement shouldAutorotate, supportedInterfaceOrientations, preferredInterfaceOrientationForPresentation these method inside your viewcontroller then they will get called.
The in you viewcontroller implement these:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
-(BOOL)shouldAutorotate
{
return NO;
}
-(NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskPortrait;
}
Another way is that add some code beginning of your app delegate:
For UITabBarController
@implementation UITabBarController (AutoRotationForwarding)
-(BOOL)shouldAutorotate
{
if ([self.selectedViewController respondsToSelector:@selector(shouldAutorotate)]) {
return [self.selectedViewController shouldAutorotate];
}
else {
return YES;
}
}
- (NSUInteger)supportedInterfaceOrientations {
if ([self.selectedViewController respondsToSelector:@selector(supportedInterfaceOrientations)]) {
return [self.selectedViewController supportedInterfaceOrientations];
}
else {
return UIInterfaceOrientationMaskAll;
}
}
@end
For UINavigationController
@implementation UINavigationController (AutoRotationForwarding)
-(BOOL)shouldAutorotate
{
if ([self.topViewController respondsToSelector:@selector(shouldAutorotate)]) {
return [self.topViewController shouldAutorotate];
}
else {
return YES;
}
}
-(NSUInteger) supportedInterfaceOrientations {
if([self.topViewController respondsToSelector:@selector(supportedInterfaceOrientations)])
{
return [self.topViewController supportedInterfaceOrientations];
}
return UIInterfaceOrientationMaskPortrait;
}
@end
Hope this helps.. :)
