Detect the landscape orientation left or right - ios

Question

My app supports portrait and landscape -> Both left and right. I am able to detect if its landscape. But not able to detect left or right. Here is my code
if UIDevice.current.orientation.isLandscape {
// Do some task
}
When user rotates the device i need to detect whether the user rotated to landscape left or landscape right !
Same way inside my above condition I need to check whether its left or right side. How can I detect that?
Thanks

Answer 1

I think you are looking for something like this
if UIDevice.current.orientation == UIDeviceOrientation.landscapeLeft {
} else if UIDevice.current.orientation == UIDeviceOrientation.landscapeRight {
} else {
//not landscape left or right
}
EDIT --------
based on your comments you are looking for interface orientation instead of device orientation.
override func didRotate(from fromInterfaceOrientation: UIInterfaceOrientation) {
var text=""
switch UIDevice.current.orientation{
case .portrait:
text="Portrait"
case .portraitUpsideDown:
text="PortraitUpsideDown"
case .landscapeLeft:
text="LandscapeLeft"
case .landscapeRight:
text="LandscapeRight"
default:
text="Another"
}
NSLog("You have moved: \(text)")
}
the code above detects interface orientation...
note how the switch statement still uses UIDeviceOrientation
Below is another method that you may want to use
override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
if UIDevice.current.orientation.isLandscape {
print("landscape")
} else {
print("portrait")
}
}
Note again that UIDevice Orientation is still used...
Below is a very different but effective approach.
struct DeviceInfo {
struct Orientation {
// indicate current device is in the LandScape orientation
static var isLandscape: Bool {
get {
return UIDevice.current.orientation.isValidInterfaceOrientation
? UIDevice.current.orientation.isLandscape
: UIApplication.shared.statusBarOrientation.isLandscape
}
}
// indicate current device is in the Portrait orientation
static var isPortrait: Bool {
get {
return UIDevice.current.orientation.isValidInterfaceOrientation
? UIDevice.current.orientation.isPortrait
: UIApplication.shared.statusBarOrientation.isPortrait
}
}
}}

Answer 2

I am doing it like this for now:
public extension UIScreen {
public class var isLandscapeLeft: Bool { UIApplication.shared.statusBarOrientation == .landscapeLeft }
public class var isLandscapeRight: Bool { UIApplication.shared.statusBarOrientation == .landscapeRight }
}
It's as extension to UIScreen just for convenience so its easy to find..
Also to detect when app actually rotates from left to right when I have just landscape enabled, I had to use AppDelegate's function:
func application(_ application: UIApplication, didChangeStatusBarOrientation oldStatusBarOrientation: UIInterfaceOrientation) { ... }
For whatever reason nothing else get's triggered.
Looks like also, you have to use UIApplication.shared.statusBarOrientation when checking from didChangeStatusBarOrientation instead of UIApplication.shared.delegate?.window??.rootViewController?.interfaceOrientation I used for other situations.