class ControllerForPresent: UIViewController {
var parentController: UIViewController!
func present(from parent: UIViewController) {
parentController = parent
parentController.view.superview!.backgroundColor = .black
UIApplication.shared.keyWindow!.rootViewController!.addChildController(self)
view.frame.origin.y = UIScreen.main.bounds.height
view.frame.size.height = UIScreen.main.bounds.height - 40
UIView.animate(0.45, damping: 1, velocity: 1, options: .allowUserInteraction) {
self.parentController.view.transform = CGAffineTransform(scaleX: 0.95, y: 0.95)
self.view.frame.origin.y = 40
}
}
@objc private func close() {
UIView.animate(0.3, animation: {
self.parentController.view.transform = .identity
self.view.frame.origin.y = UIScreen.main.bounds.height
}, completion: {
self.parentController.view.superview!.backgroundColor = .white
self.removeFromParent()
})
}
}
class ControllerThatPresents: UIViewController {
private func showAnotherController() {
let vc = storyboard!.instantiateViewController(withIdentifier: "ControllerForPresentId") as! ControllerForPresent
vc.present(from: self)
}
}
また、表示するコントローラに識別子「ControllerForPresentId」を追加します。