Xcode 13 Beta 3 and above: Workaround for UIApplication usage in SPM packages

Some.swift

private func someFunc() -> Bool {
    guard let aClass = NSClassFromString("UIApplication") else {
        return false
    }   
    
    // fetch properties as necessary. 
    let layoutDirection = UIUserInterfaceLayoutDirection(rawValue: aClass.value(forKeyPath: "sharedApplication.userInterfaceLayoutDirection") as! Int)
    
    // use runtime inspection to determine return value type.
    let state = UIApplication.State(rawValue: aClass.value(forKeyPath: "sharedApplication.applicationState") as! Int)
    
    // use the values as necessary. 
    return state == .active || layoutDirection == .rightToLeft 
    
}