Validate phone number ios

Question

I need to validate an international phone number.

I know its difficult to validate an international phone number, so I\'m going to keep it simple:

+

Answer 1

In swift 4 -

func ValidateMobileNumber(txtFeid : UITextField, strChk : String, range: NSRange) -> Bool {

    if txtFeid.text!.count >= 10 {
        return false
    } 

    let formatePre = "^((\\+)|(00))[0-9]{6,14}$"
    let resultPredicate : NSPredicate = NSPredicate(format: "SELF MATCHES %@",formatePre)
    return resultPredicate.evaluate(with: strChk)
}