How to make phone call in iOS 10 using Swift?

Question

I want my app to be able to call a certain number when a button is clicked. I've tried to google it but there doesn't seem to have one for iOS 10 so far (where openURL is gone). Can someone put an example for me on how to do so? For instance like:

@IBAction func callPoliceButton(_ sender: UIButton) {
    // Call the local Police department
}

Solution 1

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.

Solution 2

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: "[phone]")?.makeACall()

PhoneNumber.extractAll(from: "[phone] bla bla 1(617)111-22-33").last?.makeACall()

PhoneNumber.first(in: "[phone] bla bla 1(617)111-22-33")?.makeACall()

"[phone] bla bla 1(617)111-22-33".detectedPhoneNumbers[1].makeACall()
"[phone] 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("[phone]")
    isPhone("+42 555.123.4567")
    isPhone("[phone]")
    isPhone("[phone]")
    isPhone("[phone]")
    isPhone("(926) 1234567")
    isPhone("[phone]")
    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("[phone]")
    isPhone("202 555 4567")
    isPhone("4035555678")
    isPhone(" 1 416 555 9292")
    isPhone("1(617)111-22-33!")
    isPhone("[phone]")
    isPhone("[phone], 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: []
✅ [phone] | detected phones: [[phone]]
✅ +42 555.123.4567 | detected phones: [555.123.4567]
✅ [phone] | detected phones: [[phone]]
✅ [phone] | detected phones: [[phone]]
✅ [phone] | detected phones: [[phone]]
✅ (926) 1234567 | detected phones: [(926) 1234567]
✅ [phone] | detected phones: [[phone]]
✅ 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]
✅ [phone] | detected phones: [[phone]]
✅ 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]
✅ [phone] | detected phones: [[phone]]
✅ [phone], 1 416 555 9292 | detected phones: [[phone], 1 416 555 9292]
✅ +44 1838 3d0384, 1 416 555 9292! | detected phones: [1 416 555 9292]

Solution 3

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: "[phone]")

Hope this help.

Solution 4

Updated for Swift 3:

used below simple lines of code, if you want to make a phone call:

// function defination:

func makeAPhoneCall()  {
    let url: NSURL = URL(string: "TEL://1234567890")! as NSURL
    UIApplication.shared.open(url as URL, options: [:], completionHandler: nil)
}

// function call: [Used anywhere in your code]

self.makeAPhoneCall()

Note: Please run the app on a real device because it won't work on the simulator.



Solution 5

By mistake my answer was misplaced, please checkout this one: You can use this:

guard let url = URL(string: "tel://\(yourNumber)") else {
return //be safe
}

if #available(iOS 10.0, *) {
UIApplication.shared.open(url)
} else {
UIApplication.shared.openURL(url)
}

We need to check whether we're on iOS 10 or later As 'openURL' was deprecated in iOS 10.0

View more solutions

Comments

[rmaddy]

The openURL method is deprecated in iOS 10. The OP is asking what the replacement is.

[Paolo]

options and completionHandler have default values so you can actually just do UIApplication.shared.open(number)

[Parth Adroja]

@Paolo Yes that's true.

[Dilip Tiwari]

what be the number in above @ParthAdroja

[Parth Adroja]

@DilipTiwari Number will be String.

[Dilip Tiwari]

Will it be empty right @ParthAdroja

[Parth Adroja]

@DilipTiwari No it wouldn't be empty. It will be like "tel://[phone]"

[Dilip Tiwari]

ok i got it @ParthAdroja

[Dilip Tiwari]

i can also pass string from json to this telephone string @ParthAdroja

[Parth Adroja]

@DilipTiwari Yes

[Dilip Tiwari]

thanks @ParthAdroja

[bhakti123]

A better implementation.

[Eric Aya]

This has already been posted many times...

[Muhammad Ehsan Mirzaei]

it's does not consider the 0 in first position

[Srdjan]

Is there a way to get notified when the call has ended?

[paul_f]

I walked straight into upvoting with the fancy answer and bright colours/emojis... and then... ❌ [phone] | 441838300284 | [not a phone number]. This is not working for me and returns false for everything

[Vasily Bodnarchuk]

@paul_f did you tried to run the code on sample? Is is not working too?

[paul_f]

Test works fine, whatever it is about my test case it does not work at all: "[phone]" for example. I think the spacing of the numbers is the issue. It's a common spacing here.

[Vasily Bodnarchuk]

@paul_f check the answer. I updated the code

[Jabbar]

@VasilyBodnarchuk I actually wanted to upvote the answer but accidentally hit on the downvote button. 😥

[Vasily Bodnarchuk]

@Jabbar thank you for the comment) because downvote for me means that something wrong with my code and I have to check it again. Glad to help!

[Jabbar]

@VasilyBodnarchuk No, there is nothing wrong with the code. It works perfectly. I just accidentally hit the downvote button.

[Sivabalaa Jothibose]

@VasilyBodnarchuk, "phone:[phone]!".makeACall() is not working for me in Xcode 11.4, Can you help me out.

[Vasily Bodnarchuk]

@SivabalaaJothibose Hello there! Did you tried to simulate the code on a real device?

[Sivabalaa Jothibose]

@VasilyBodnarchuk Hi, In Real device. guard isValid(regex: .phone) is giving false.

[Vasily Bodnarchuk]

@SivabalaaJothibose try again. I updated the code