So I have a class that has a function to send an SMS message. I tried making the class conform to the delegate protocol...it ends up causing the class to require a type alias which I thought would be of type MFMessageViewController but that didn't work
class functions: NSObject, ObservableObject, MFMessageComposeViewControllerDelegate {
func sendInviteMessage(number: String) {
if MFMessageComposeViewController.canSendText() {
let message = MFMessageComposeViewController()
message.messageComposeDelegate = self
message.recipients = [number]
message.body = "Hi, I'd like to invite you to join my app google.com"
message.present(message, animated: true)
}
}
func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
controller.dismiss(animated: true)
}
}
If your project use SwiftUI then you can use UIViewControllerRepresentable
struct MessageComposeViewController: UIViewControllerRepresentable {
var toRecipients: [String]
var messageBody: String
var didFinish: ()->()
func makeCoordinator() -> Coordinator {
return Coordinator(self)
}
func makeUIViewController(context: UIViewControllerRepresentableContext<MessageComposeViewController>) -> MFMessageComposeViewController {
let message = MFMessageComposeViewController()
message.messageComposeDelegate = context.coordinator
message.recipients = self.toRecipients
message.body = self.messageBody
return message
}
final class Coordinator: NSObject, MFMessageComposeViewControllerDelegate {
var parent: MessageComposeViewController
init(_ controller: MessageComposeViewController) {
self.parent = controller
}
func messageComposeViewController(_ controller: MFMessageComposeViewController, didFinishWith result: MessageComposeResult) {
parent.didFinish()
controller.dismiss(animated: true)
}
}
func updateUIViewController(_ uiViewController: MFMessageComposeViewController, context: UIViewControllerRepresentableContext<MessageComposeViewController>) {
}
}
usage:
struct MessageView: View {
@State private var showingMessage = false
var body: some View {
VStack {
Button("Open Message") {
self.showingMessage.toggle()
}
}
.sheet(isPresented: $showingMessage) {
MessageComposeViewController(toRecipients: ["1234567890"], messageBody: "Hi, I'd like to invite you to join my app google.com") {
// Did finish action
}
}
}
}
Possible another solution. You can create one singleton class and present MFMessageComposeViewController on the root controller. Like this
class Functions: NSObject, MFMessageComposeViewControllerDelegate {
static let shared = Functions()
func sendInviteMessage(number: String) {
if MFMessageComposeViewController.canSendText() {
let message = MFMessageComposeViewController()
message.messageComposeDelegate = self
message.recipients = [number]
message.body = "Hi, I'd like to invite you to join my app google.com"
UIApplication.shared.windows.first?.rootViewController?.present(message, animated: true)
}
}
func messageComposeViewController(_ controller: MFMessageComposeViewController, didFinishWith result: MessageComposeResult) {
controller.dismiss(animated: true)
}
}
usage:
struct MessageView: View {
var body: some View {
Button("Open Message") {
Functions.shared.sendInviteMessage(number: "12345678")
}
}
}