Detects the orientation of the mobile phone to the UIDevice and the orientation to the uidevice.

Detects the orientation of the mobile phone to the UIDevice and the orientation to the uidevice.

-(Void) viewDidLoad {[super viewDidLoad]; // you can call the UIDevice and begingeneratingdeviceorientationconfigurations method to send the orientation information to the notification center [[UIDevice currentDevice] begingeneratingdeviceorientationconfigurations]. // create a notification center [[NSNotificationCenter defacenter center] addObserver: self selector: @ selector (orientationChanged :) name: UIDeviceOrientationDidChangeNotification object: nil];}

-(Void) orientationChanged :( NSNotification *) notification {UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation]; switch (orientation) {case UIDeviceOrientationFaceUp: NSLog (@ "device face up "); break; case UIDeviceOrientationFaceDown: NSLog (@ "device face down"); break; case UIDeviceOrientationPortrait: NSLog (@ "the device is in normal orientation, and the home screen button is below"); break; case UIDeviceOrientationPortraitUpsideDown: NSLog; case UIDeviceOrientationLandscapeRight: NSLog (@ "device side, right down"); break; default: break ;}}

Appendix: Check the mobile phone version information using UIDevice.

// Obtain hardware information: UIDevice * device = [UIDevice currentDevice]; // output NSLog (@ "% @", device. systemVersion );