CODEWITHSUNDEEP
iphoneiosobjective-cuiviewuistatusbar
Andrew
Andrew

Reputation: 16051

Status bar rotation notification

I want to find out when the status bar rotates. Receiving a screen rotation notification can confuse matters with orientations such as 'face up' and 'face down'. Managing rotation based on the orientation of the status bar is therefore the simplest and cleanest way of doing it. How do i get a notification when the orientation changes?

Upvotes: 6

Views: 4692

Answers (2)

rmaddy
rmaddy

Reputation: 318814

You need to register for the UIApplicationDidChangeStatusBarOrientationNotification notification.

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(statusBarOrientationChange:) name:UIApplicationDidChangeStatusBarOrientationNotification object:nil];

- (void)statusBarOrientationChange:(NSNotification *)notification {
    UIInterfaceOrientation orient = [notification.userInfo[UIApplicationStatusBarOrientationUserInfoKey] integerValue];

    // handle the interface orientation as needed
}

Note that this approach never results in the "face up" or "face down" device orientations since this only deals with interface orientations.

Upvotes: 12

Adam Waite
Adam Waite

Reputation: 18855

//register to receive orientation notifications somewhere:
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(detectOrientation) name:UIDeviceOrientationDidChangeNotification object:nil];


    -(void)detectOrientation{

        switch ([[UIDevice currentDevice] orientation]) {

            case UIDeviceOrientationFaceDown:{
            }
            break;

            default:{
            }
            break;

        }
    }

If it's not working, check orientation lock! Wasted hours on that.

Upvotes: -1

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