SwiftUI 3 save contacts button

demoButton.swift

// iOS 15 or above

Button("+ Add to Contacts") {
    // Create a mutable object to add to the contact.
    // Mutable object means an object state that can be modified after created.
    let contact = CNMutableContact()
    // Name
    contact.givenName = "Ming"
    // Phone No.
    contact.phoneNumbers = [CNLabeledValue(label: CNLabelPhoneNumberiPhone, value: CNPhoneNumber(stringValue: "12345678"))]
    // Save the created contact.
    let store = CNContactStore()
    let saveRequest = CNSaveRequest()
    saveRequest.add(contact, toContainerWithIdentifier: nil)
    do {
        try store.execute(saveRequest)
    } catch {
        print("Error occur: \(error)")
        // Handle error
        // may add a alert...
    }
}
.buttonStyle(.borderedProminent)
.tint(.black)