TextFieldValidator

This version of TextFieldValidator validates UITextFields to ensure that they contain text. If not, it presents a UIAlert with a nicely formatted custom message.

Installation

1. Carthage
2. Cocoapods

Carthage Installation

Carthage is a decentralized dependency manager that builds your dependencies and provides you with binary frameworks. To integrate TextFieldValidator into your Xcode project using Carthage, specify it in your Cartfile:

github "froggomad/TextFieldValidator"

Then add the resulting Framework (normally found in the Carthage/Build folder) to your project as you normally would.

Cocoapods Installation

CocoaPods is a dependency manager for Cocoa projects. For usage and installation instructions, visit their website. To integrate TextFieldValidator into your Xcode project using CocoaPods, specify it in your Podfile:

pod 'TextFieldValidator'

Then from your project's directory in the command line, run:

pod install

Sample usage:

@IBOutlet private var nameField: UITextField!
@IBOutlet private var emailField: UITextField!

@IBAction func doneButtonTapped(_ sender: UIButton) {
  let validator = TextFieldValidator(viewController: self)
  //set messages for specific UITextFields via subscripting:
  validator[emailField] = "E-mail Address"
  //or use the TextFieldValidator.set method:
  validator.set(
            nameField,
            with: "Name"
  )
  //check all textFields that have been set on this validator and alert a message for each empty textField:
  validator.alertIfEmpty(title: "Please Enter Your:")

  //for more complex operations, there's a closure that returns Void
  /*
  validator.alertIfEmpty() {
      //The getText method returns the textField's text safely unwrapped or an empty String if it fails
      print(self.validator.getText(from: self.nameField))
  }
  */
}