Change orientation programmatically with button - iOS

var currentOrientation: UIInterfaceOrientation = UIApplication.shared.statusBarOrientation
var value = .landscapeRight
UIDevice.current.setValue(value, forKey: "orientation")
UIViewController.attemptRotationToDeviceOrientation()

I don't have a swift code. Below are the objective c code, It worked for me. You can convert it into swift as per your requirement.

Ojective C

UIInterfaceOrientation currentOrientation = [UIApplication sharedApplication].statusBarOrientation;
NSNumber *value = [NSNumber numberWithInt:UIInterfaceOrientationPortrait];
[[UIDevice currentDevice] setValue:value forKey:@"orientation"];    
[UIViewController attemptRotationToDeviceOrientation];

Update

Swift 4.0

var value  = UIInterfaceOrientation.landscapeRight.rawValue
if UIApplication.shared.statusBarOrientation == .landscapeLeft || UIApplication.shared.statusBarOrientation == .landscapeRight{
   value = UIInterfaceOrientation.portrait.rawValue
}

UIDevice.current.setValue(value, forKey: "orientation")
UIViewController.attemptRotationToDeviceOrientation()

Above code already tested by me and it is working fine. Incase above code is not worked for you, Then execute it after some delay using performSelector.