无法取消电话号码中的拨号盘

Question

I think so This question is not duplicate one. Call to phone number when touching cancel Action my app throws app to initial screen instead of displaying current screen. Is this a bug in iOS11 or is there something that I am doing wrong from following code. this is my code.

@objc func CallAction(_ sender : UIButton)
    {
        var localDic :NSDictionary!
        if is_searching {
            localDic = searchingDataArray.object(at: sender.tag) as! NSDictionary
        }else
        {
            localDic = myStudentsArray.object(at: sender.tag) as! NSDictionary

        }

        let phoneNumber=localDic["contact_no"] as! String
        print("phoneNumber",phoneNumber )

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

    }

Answer 1

Use the following code

guard let telNumber = URL(string: "telprompt://" + "+1234-567-89") else { return }
    if #available(iOS 10.0, *) {
        UIApplication.shared.open(telNumber)
    } else {
        // Fallback on earlier versions
    }

hope its works..