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A quick way to get the current orientation is:

- (void)viewDidLoad {
[super viewDidLoad];

//The extra setup is not required for Portrait// if portrait set apprunning ==1
if(self.interfaceOrientation == UIInterfaceOrientationPortrait || self.interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) {
[[NSUserDefaults standardUserDefaults] setInteger:1 forKey:@”apprunning”];
} else [[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@”apprunning”];

Notice, this checks the orientation for UIInterfaceOrientationPortrait or UIInterfaceOrientationPortraitUpsideDown and then performs a task.

For reference, the Landscape Orientations are called: UIDeviceOrientationLandscapeLeft and UIDeviceOrientationLandscapeRight.

To add rotation support to a view controller, use the following method (this method is typically included already).

// Ensure that the view controller supports rotation and therefore show in both portrait and landscape.
– (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return YES;
}