如何使用 UIViewControllerRepresentable 编写以下代码？我想使用 UIViewControllerRepresentable。我希望我编写的代码是常规的。你觉得用 UIViewControllerRepresentable 写这段代码有意义吗？
import MessageUI
class ViewController: UIViewController, MFMessageComposeViewControllerDelegate {
@IBOutlet weak var phoneNumber: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
}
@IBAction func sendText(sender: UIButton) {
if (MFMessageComposeViewController.canSendText()) {
let controller = MFMessageComposeViewController()
controller.body = "Message Body"
controller.recipients = [phoneNumber.text]
controller.messageComposeDelegate = self
self.presentViewController(controller, animated: true, completion: nil)
}
}
func messageComposeViewController(controller: MFMessageComposeViewController!, didFinishWithResult result: MessageComposeResult) {
//... handle sms screen actions
self.dismissViewControllerAnimated(true, completion: nil)
}
override func viewWillDisappear(animated: Bool) {
self.navigationController?.navigationBarHidden = false
}
}
短信视图控制器
struct SMSViewController: UIViewControllerRepresentable {
class Coordinator: NSObject, MFMessageComposeViewControllerDelegate {
func messageComposeViewController(_ controller: MFMessageComposeViewController, didFinishWith result: MessageComposeResult) {
}
var parent: MFMessageComposeViewController
init(_ parent: MFMessageComposeViewController) {
self.parent = parent
}
}
func makeCoordinator() -> Coordinator {
Coordinator(self)
}
func makeUIViewController(context: UIViewControllerRepresentableContext<MFMessageComposeViewController>) -> MFMessageComposeViewController {
let messageViewController = MFMessageComposeViewController()
messageViewController.delegate = context.coordinator
return messageViewController
}
func updateUIViewController(_ uiViewController: UIViewControllerType, context: Context) {
}
}