iPhone orientation problem

Question

Hello guys!

Down there is my code which is called when the iPhone is rotated.

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
switch (interfaceOrientation) {
    case UIInterfaceOrientationPortrait:
                    // some action
        return YES;
    case UIInterfaceOrientationLandscapeLeft: {
                    // some action
        return NO;
    }
    case UIInterfaceOrientationLandscapeRight: {
                    // some action
        return NO;
    }
    default:
        return NO;
        break;
}

}

I thought this is enough, but then I spotted, that the

case UIInterfaceOrientationPortrait:

is never called. What can I do? Do I have to use the default? Maybe it isn't the best solution, or it is?

Answer 1

That should be adequate if you just want to use the portrait orientation.

Where have you overriden this function? It should be in the topmost view controller.

Answer 2

Hey guys, come on, suggest me a good way to this. How can I do some action when rotate the iPhone to landscape if I don't want to rotate the whole view?

Answer 3

I've just given your code to a sample application, and its working fine, with the given code, when i change the orientation to landscape, nothing is happening to the orientationo f anything in the view. One method is to design view separately for each orientation, and return YES to all of the orientations and use the following property

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation) 
    interfaceOrientation duration:(NSTimeInterval)duration { 
    if (interfaceOrientation == UIInterfaceOrientationPortrait 
        || interfaceOrientation == 
            UIInterfaceOrientationPortraitUpsideDown) { 
       //design your portrait view eg: for button, button.frame = CGRectMake(x,y,w,h)
    } 
    else { 
        //design for the landscape
    } 
} 

Answer 4

Ok. I found the answer. There is a notification when you rotate the phone.

    [[NSNotificationCenter defaultCenter] addObserver: self
                                         selector:@selector(receivedRotate:)
                                             name:UIDeviceOrientationDidChangeNotification
                                           object: nil];

and

- (void)receivedRotate:(NSNotification*)notif {
UIDeviceOrientation interfaceOrientation = [[UIDevice currentDevice] orientation];
switch (interfaceOrientation) {
    case UIInterfaceOrientationPortrait: {
        break;
    }
    case UIInterfaceOrientationLandscapeLeft: {
        break;
    }
    case UIInterfaceOrientationLandscapeRight: {
        break;
    }
    default:
        break;
}   

}

Use it ;)