Get all list of UIViewControllers in iOS Swift
You can do it with below code.
let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
if let viewControllers = appDelegate.window?.rootViewController?.presentedViewController
{
// Array of all viewcontroller even after presented
}
else if let viewControllers = appDelegate.window?.rootViewController?.childViewControllers
{
// Array of all viewcontroller after push
}
Swift 4.2 ( XCode 10 )
let appDelegate = UIApplication.shared.delegate as! AppDelegate
if (appDelegate.window?.rootViewController?.presentedViewController) != nil
{
// Array of all viewcontroller even after presented
}
else if (appDelegate.window?.rootViewController?.children) != nil
{
// Array of all viewcontroller after push
}
Here is an extension I made on the basis of prev answers
Uses Generics + Extension (Swift 5.1)
/**
* - Returns: ViewController of a class Kind
* ## Examples:
* UIView.vc(vcKind: CustomViewController.self) // ref to an instance of CustomViewController
*/
public static func vc<T: UIViewController>(vcKind: T.Type? = nil) -> T? {
guard let appDelegate = UIApplication.shared.delegate, let window = appDelegate.window else { return nil }
if let vc = window?.rootViewController as? T {
return vc
} else if let vc = window?.rootViewController?.presentedViewController as? T {
return vc
} else if let vc = window?.rootViewController?.children {
return vc.lazy.compactMap { $0 as? T }.first
}
return nil
}