In iOS form Phone number validation in swift language

Simple phone number validation in swift ios 8 , Using this function  you can easily  check phone number . Also have some example for this using NSPredicate etc . 

you can see lots of method for number validation. But I made this sort method

    func phoneNumberValidation(value: String) -> Bool {

        var charcter  = NSCharacterSet(charactersInString: "0123456789").invertedSet

        var filtered:NSString!

        var inputString:NSArray = value.componentsSeparatedByCharactersInSet(charcter)

        filtered = inputString.componentsJoinedByString("")

        return  value == filtered

    }

How to use this validation function in code

if    self.phoneNumberValidation(contactNumTextF.text) == false  {

            let alert = UIAlertView()

            alert.title = "Message"

            alert.message = "Enter Valid Contact Number"

            alert.addButtonWithTitle("Ok")

            alert.delegate = self

            alert.show() 

}else {

            // Number valid
         } 


You can also check this validation in Objective C Language  simple phone number validation in IPhone sdk Objective C

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