如何在Modal View演示文稿中添加动画延迟swift iOS

Question

@objc func popCartView(tapGestureRecognizer: UITapGestureRecognizer)
{
    let modalViewController = CartViewController()
    modalViewController.modalPresentationStyle = .overCurrentContext
    self.present(modalViewController, animated: true, completion: nil)
}

如何使用更长的时间（例如2秒完成动画）为此视图设置动画

Answer 1

@objc func popCartView(tapGestureRecognizer: UITapGestureRecognizer)
{
    let modalViewController = CartViewController()
    modalViewController.modalPresentationStyle = .overCurrentContext
    DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
        // Your code with delay
        self.present(modalViewController, animated: true, completion: nil)
    }
}