Unable to handle orientation in iOS 6?

Question

I am using

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

delegate to change the frame of my view based on the orientation type

i.e.,

if(UIInterfaceOrientationIsLandscape(interfaceOrientation))
{
    self.view.frame=CGRectMake(0,0,500,300);
}
else
{
    self.view.frame=CGRectMake(0,0,300,400);
}

How to handle the same situation in iOS 6 as

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

has been deprecated in iOS6.

I am using the following delegate to set all the orientations.

-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationAllMask;
}

But,

-(BOOL)shouldAutoRotate
{
    return YES;

}

is not getting invoked. How to handle this situation?

Answer 1

This method work fine for IOS 6 and Older versions

-(BOOL)rotationChanged:(UIInterfaceOrientation)interfaceOrientation {
    NSInteger orientation = [[UIDevice currentDevice] orientation];
    UIWindow *_window = [[[UIApplication sharedApplication] delegate] window];
    if ([PGPlatformUtils GetCurrentPlatform]==PGPlatformEnum_iPhone) {
        switch (orientation) {
            case 1:
                [UIView beginAnimations:nil context:nil];
                [UIView setAnimationDuration:0.0];

                [_window setTransform:CGAffineTransformMakeRotation (0)];
                [_window setFrame:CGRectMake(0, 0, 320, 480)];
                [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:YES];

                [UIView commitAnimations];
                break;
            case 2:
                [UIView beginAnimations:nil context:nil];
                [UIView setAnimationDuration:0.0];

                [_window setTransform:CGAffineTransformMakeRotation (M_PI)];
                [_window setFrame:CGRectMake(0, 0, 320, 480)];
                [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:YES];

                [UIView commitAnimations];
                break;
            case 3:
                [UIView beginAnimations:nil context:nil];
                [UIView setAnimationDuration:0.0];

                [_window setTransform:CGAffineTransformMakeRotation (M_PI / 2)];
                [_window setFrame:CGRectMake(0, 0, 320, 480)];
                [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeRight animated:YES];

                [UIView commitAnimations];
                break;
            case 4:
                [UIView beginAnimations:nil context:nil];
                [UIView setAnimationDuration:0.0];

                [_window setTransform:CGAffineTransformMakeRotation (- M_PI / 2)];
                [_window setFrame:CGRectMake(0, 0, 320, 480)];
                [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft animated:YES];

                [UIView commitAnimations];
                break;
            case 5:
                [UIView beginAnimations:nil context:nil];
                [UIView setAnimationDuration:0.0];

                [_window setTransform:CGAffineTransformMakeRotation (0)];
                [_window setFrame:CGRectMake(0, 0, 320, 480)];
                [[UIApplication sharedApplication] setStatusBarOrientation:UIPrintInfoOrientationLandscape animated:YES];

                [UIView commitAnimations];
                break;


            default:
                break;
        }
    }
    else{
        switch (orientation) {
            case 1:
                [UIView beginAnimations:nil context:nil];
                [UIView setAnimationDuration:0.0];

                [_window setTransform:CGAffineTransformMakeRotation (0)];
                [_window setFrame:CGRectMake(0, 0, 768, 1024)];
                [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:YES];
                NSLog(@"*** 1 Orientation Call 0");

                [UIView commitAnimations];
                break;
            case 2:
                [UIView beginAnimations:nil context:nil];
                [UIView setAnimationDuration:0.0];

                [_window setTransform:CGAffineTransformMakeRotation (M_PI)];
                [_window setFrame:CGRectMake(0, 0, 768, 1024)];
                [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortraitUpsideDown animated:YES];
                NSLog(@"*** 1 Orientation Call M_PI");
                [UIView commitAnimations];
                break;
            case 3:
                [UIView beginAnimations:nil context:nil];
                [UIView setAnimationDuration:0.0];

                [_window setTransform:CGAffineTransformMakeRotation (M_PI / 2)];
                [_window setFrame:CGRectMake(0, 0, 768, 1024)];
                [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeRight animated:YES];
                NSLog(@"*** 1 Orientation Call M_PI/2");
                [UIView commitAnimations];
                break;
            case 4:
                [UIView beginAnimations:nil context:nil];
                [UIView setAnimationDuration:0.0];

                [_window setTransform:CGAffineTransformMakeRotation (- M_PI / 2)];
                [_window setFrame:CGRectMake(0, 0, 768, 1024)];
                [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft animated:YES];
                NSLog(@"*** 1 Orientation Call - M_PI/2");
                [UIView commitAnimations];
                break;
            case 5:
                [UIView beginAnimations:nil context:nil];
                [UIView setAnimationDuration:0.0];

                [_window setTransform:CGAffineTransformMakeRotation (0)];
                [_window setFrame:CGRectMake(0, 0, 768, 1024)];
                [[UIApplication sharedApplication] setStatusBarOrientation:UIPrintInfoOrientationLandscape animated:YES];
                NSLog(@"*** 1 Orientation Call 0");
                [UIView commitAnimations];
                break;

            default:
                break;
        }
    }
    return YES;

}

Answer 2

Make sure all you orientation is enable.

Answer 3

In the AppDelegate, I have added the ViewController Object to window as

[self.window addSubView:viewControllerObj]

The problem was with the above line. Orientation will work properly with the above line in iOS 5 but in iOS, for orientation to work properly, change the above line with

[self.window setRootViewController:viewControllerObj]

Then the app rotates when orientation changes.

Answer 4

Make sure the settings in the project and target allow for the orientations for each device type.

Also, the code you have in shouldAutorotateToInterfaceOrientation: you can put in viewDidLayoutSubviews.

Answer 5

Remember that in iOS 6 the handling of the rotation is take care in parents view. Less responsability to childs viewcontrollers. But more annoying for us that code everything without Interface builder.

Answer 6

Handling UINavigation orientation issue in iOS 6

1 Create a UINavigation+Rotation category class

2 put below methods in UINavigation+Rotation.m class

-(BOOL)shouldAutorotate
{
    return [[self.viewControllers lastObject] shouldAutorotate];
}

-(NSUInteger)supportedInterfaceOrientations
{
    return [[self.viewControllers lastObject]supportedInterfaceOrientations];
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    if ([self.viewControllers count] == 0) {
        return UIInterfaceOrientationPortrait;
    }
    return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation];
}