title: Swift: Insert Alert Box with Text Input (and Store Text Input )
body: <p>In one of my <code>viewController</code>, I want to make an <code>alert box</code> appear that prompts the <code>user</code> to type this information.Then, I want the user to store this input using <code>NSUserDefaults</code>. How can I achieve this? </p>
  
  <p>Thank you in advance! </p>