How to make phone call in iOS 10 using Swift? [duplicate]

You can call like this:

 if let url = URL(string: "tel://\(number)") {
     UIApplication.shared.openURL(url)
 }

For Swift 3+, you can use like

guard let number = URL(string: "tel://" + number) else { return }
UIApplication.shared.open(number)

OR

UIApplication.shared.open(number, options: [:], completionHandler: nil)

Make sure you've scrubbed your phone number string to remove any instances of (, ), -, or space.


Task

Make a call with phone number validation

Details

Tested on:

  • Swift 5.2, Xcode 11.4 (11E146)

Solution

// MARK: DataDetector

class DataDetector {

    private class func _find(all type: NSTextCheckingResult.CheckingType,
                             in string: String, iterationClosure: (String) -> Bool) {
        guard let detector = try? NSDataDetector(types: type.rawValue) else { return }
        let range = NSRange(string.startIndex ..< string.endIndex, in: string)
        let matches = detector.matches(in: string, options: [], range: range)
        loop: for match in matches {
            for i in 0 ..< match.numberOfRanges {
                let nsrange = match.range(at: i)
                let startIndex = string.index(string.startIndex, offsetBy: nsrange.lowerBound)
                let endIndex = string.index(string.startIndex, offsetBy: nsrange.upperBound)
                let range = startIndex..<endIndex
                guard iterationClosure(String(string[range])) else { break loop }
            }
        }
    }

    class func find(all type: NSTextCheckingResult.CheckingType, in string: String) -> [String] {
        var results = [String]()
        _find(all: type, in: string) {
            results.append($0)
            return true
        }
        return results
    }

    class func first(type: NSTextCheckingResult.CheckingType, in string: String) -> String? {
        var result: String?
        _find(all: type, in: string) {
            result = $0
            return false
        }
        return result
    }
}

// MARK: PhoneNumber

struct PhoneNumber {
    private(set) var number: String
    init?(extractFrom string: String) {
        guard let phoneNumber = PhoneNumber.first(in: string) else { return nil }
        self = phoneNumber
    }

    private init (string: String) { self.number = string }

    func makeACall() {
        guard let url = URL(string: "tel://\(number.onlyDigits())"),
            UIApplication.shared.canOpenURL(url) else { return }
        if #available(iOS 10, *) {
            UIApplication.shared.open(url)
        } else {
            UIApplication.shared.openURL(url)
        }
    }

    static func extractAll(from string: String) -> [PhoneNumber] {
        DataDetector.find(all: .phoneNumber, in: string)
            .compactMap {  PhoneNumber(string: $0) }
    }

    static func first(in string: String) -> PhoneNumber? {
        guard let phoneNumberString = DataDetector.first(type: .phoneNumber, in: string) else { return nil }
        return PhoneNumber(string: phoneNumberString)
    }
}

extension PhoneNumber: CustomStringConvertible { var description: String { number } }

// MARK: String extension

extension String {

    // MARK: Get remove all characters exept numbers

    func onlyDigits() -> String {
        let filtredUnicodeScalars = unicodeScalars.filter { CharacterSet.decimalDigits.contains($0) }
        return String(String.UnicodeScalarView(filtredUnicodeScalars))
    }

    var detectedPhoneNumbers: [PhoneNumber] { PhoneNumber.extractAll(from: self) }
    var detectedFirstPhoneNumber: PhoneNumber? { PhoneNumber.first(in: self) }
}

Usage

PhoneNumber(extractFrom: "+1-(800)-123-4567")?.makeACall()

PhoneNumber.extractAll(from: "+1-(800)-123-4567 bla bla 1(617)111-22-33").last?.makeACall()

PhoneNumber.first(in: "+1-(800)-123-4567 bla bla 1(617)111-22-33")?.makeACall()

"+1-(800)-123-4567 bla bla 1(617)111-22-33".detectedPhoneNumbers[1].makeACall()
"+1-(800)-123-4567 bla bla 1(617)111-22-33".detectedFirstPhoneNumber?.makeACall()

Full sample

do not forget to paste the solution code here

func test() {
    isPhone("blabla")
    isPhone("+1(222)333-44-55")
    isPhone("+42 555.123.4567")
    isPhone("+1-(800)-123-4567")
    isPhone("+7 555 1234567")
    isPhone("+7(926)1234567")
    isPhone("(926) 1234567")
    isPhone("+79261234567")
    isPhone("926 1234567")
    isPhone("9261234567")
    isPhone("1234567")
    isPhone("123-4567")
    isPhone("123-89-01")
    isPhone("495 1234567")
    isPhone("469 123 45 67")
    isPhone("8 (926) 1234567")
    isPhone("89261234567")
    isPhone("926.123.4567")
    isPhone("415-555-1234")
    isPhone("650-555-2345")
    isPhone("(416)555-3456")
    isPhone("202 555 4567")
    isPhone("4035555678")
    isPhone(" 1 416 555 9292")
    isPhone("1(617)111-22-33!")
    isPhone("+44 1838 300284")
    isPhone("+44 1838 300284, 1 416 555 9292")
    isPhone("+44 1838 3d0384, 1 416 555 9292!")
}

private func isPhone(_ string: String) {
    let phoneNumbers = PhoneNumber.extractAll(from: string)
    let result = !phoneNumbers.isEmpty
    print("\(result ? "✅" : "❌") \(string) | detected phones: \(phoneNumbers)")
}

Result

❌ blabla | detected phones: []
✅ +1(222)333-44-55 | detected phones: [+1(222)333-44-55]
✅ +42 555.123.4567 | detected phones: [555.123.4567]
✅ +1-(800)-123-4567 | detected phones: [+1-(800)-123-4567]
✅ +7 555 1234567 | detected phones: [+7 555 1234567]
✅ +7(926)1234567 | detected phones: [+7(926)1234567]
✅ (926) 1234567 | detected phones: [(926) 1234567]
✅ +79261234567 | detected phones: [+79261234567]
✅ 926 1234567 | detected phones: [926 1234567]
✅ 9261234567 | detected phones: [9261234567]
✅ 1234567 | detected phones: [1234567]
✅ 123-4567 | detected phones: [123-4567]
✅ 123-89-01 | detected phones: [123-89-01]
✅ 495 1234567 | detected phones: [495 1234567]
✅ 469 123 45 67 | detected phones: [469 123 45 67]
✅ 8 (926) 1234567 | detected phones: [8 (926) 1234567]
✅ 89261234567 | detected phones: [89261234567]
✅ 926.123.4567 | detected phones: [926.123.4567]
✅ 415-555-1234 | detected phones: [415-555-1234]
✅ 650-555-2345 | detected phones: [650-555-2345]
✅ (416)555-3456 | detected phones: [(416)555-3456]
✅ 202 555 4567 | detected phones: [202 555 4567]
✅ 4035555678 | detected phones: [4035555678]
✅  1 416 555 9292 | detected phones: [1 416 555 9292]
✅ 1(617)111-22-33! | detected phones: [1(617)111-22-33]
✅ +44 1838 300284 | detected phones: [+44 1838 300284]
✅ +44 1838 300284, 1 416 555 9292 | detected phones: [+44 1838 300284, 1 416 555 9292]
✅ +44 1838 3d0384, 1 416 555 9292! | detected phones: [1 416 555 9292]

In Swift 4.2

func dialNumber(number : String) {

 if let url = URL(string: "tel://\(number)"),
   UIApplication.shared.canOpenURL(url) {
      if #available(iOS 10, *) {
        UIApplication.shared.open(url, options: [:], completionHandler:nil)
       } else {
           UIApplication.shared.openURL(url)
       }
   } else {
            // add error message here 
   }
}

Call this like below

dialNumber(number: "+921111111222")

Hope this help.