Try this :
In Objective C
if (@available(iOS 11.0, *)) {
UIWindow *window = UIApplication.sharedApplication.windows.firstObject;
CGFloat topPadding = window.safeAreaInsets.top;
CGFloat bottomPadding = window.safeAreaInsets.bottom;
}
In Swift - iOS 13.0 and above
// Use the first element from windows array as KeyWindow deprecated
if #available(iOS 11.0, *) {
let window = UIApplication.shared.windows[0]
let topPadding = window.safeAreaInsets.top
let bottomPadding = window.safeAreaInsets.bottom
}
In Swift
if #available(iOS 11.0, *) {
let window = UIApplication.shared.keyWindow
let topPadding = window?.safeAreaInsets.top
let bottomPadding = window?.safeAreaInsets.bottom
}