1、簡介

在App開發(fā)中，涉及到用戶登錄時，我們經(jīng)常需要檢驗用戶輸入的賬戶是否是我們指定的類型。例如判斷用戶的賬號是不是正確的手機(jī)號、郵箱等。

2、實現(xiàn)

在Swift里我們可以通過如下代碼輕松的實現(xiàn)字段串相關(guān)類型的判斷

import Foundation

extension String {

    func isvalitemobile() -> Bool {
        let mobileRegex = "^((13[0-9])|(15[^4,\\D])|(18[0,0-9])|(17[0,0-9]))\\d{8}$"
        let mobileTest:NSPredicate = NSPredicate(format: "SELF MATCHES %@", mobileRegex)
        return mobileTest.evaluate(with: self)
    }
    
    func isvaliteemail() -> Bool {
        let emailRegex = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}"
        let emailTest:NSPredicate = NSPredicate(format: "SELF MATCHES %@", emailRegex)
        return emailTest.evaluate(with: self)
    }
    
    func isvaliteidnum() -> Bool {
        let idRegex = "^(\\d{14}|\\d{17})(\\d|[xX])$"
        let idTest:NSPredicate = NSPredicate(format: "SELF MATCHES %@", idRegex)
        return idTest.evaluate(with: self)
    }
    
}