How to set device (UI) orientation programmatically?

Question

Would like everything on the screen (UI) to be able to rotate from landscape left to right or vica versa.

How do I go about doing this? Is this private?

I know that

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {} 

lets you say which orientations the UI can be, but is there a way to force only one at a time?

Cheers

Answer 1

In iOS [[UIDevice currentDevice] setDeviceOrientation:UIDeviceOrientationSomeOrientation] method is absent. But we can rotate a view with status bar, for this:

- (void)showAlbum {     // check current orientation     if ([[UIApplication sharedApplication] statusBarOrientation] != UIInterfaceOrientationLandscapeLeft) {         // no, the orientation is wrong, we must rotate the UI         self.navigationController.view.userInteractionEnabled = NO;         [UIView beginAnimations:@"newAlbum" context:NULL];         [UIView setAnimationDelegate:self];         // when rotation is done, we can add new views, because UI orientation is OK         [UIView setAnimationDidStopSelector:@selector(addAlbum)];         // setup status bar         [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft  animated:NO];         // rotate main view, in this sample the view of navigation controller is the root view in main window         [self.navigationController.view setTransform: CGAffineTransformMakeRotation(M_PI / 2)];         // set size of view         [self.navigationController.view setFrame:CGRectMake(0, 0, 748, 1024)];         [UIView commitAnimations];     } else {         [self addAlbum];     }  } 

Answer 2

I've had success with this:

 if (self.interfaceOrientation != UIInterfaceOrientationPortrait) {     // http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation     // http://openradar.appspot.com/radar?id=697     // [[UIDevice currentDevice] setOrientation:UIInterfaceOrientationPortrait]; // Using the following code to get around apple's static analysis...     [[UIDevice currentDevice] performSelector:NSSelectorFromString(@"setOrientation:") withObject:(id)UIInterfaceOrientationPortrait]; }