title: Text from UITextFieldTextDidChangeNotification
body: <p>I have a UITextField with this NSNotification:</p>
  
  <pre><code>[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(textFieldDidChange:) name:@"UITextFieldTextDidChangeNotification" object:_searchTextField];
  
  - (void)textFieldDidChange :(NSNotification *)notif 
      {
       //
      }
  </code></pre>
  
  <p>The NSLog is when I type in <code>r</code></p>
  
  <pre><code>NSConcreteNotification 0x193c20 {name = UITextFieldTextDidChangeNotification; object = &lt;UITextField: 0x15a980; frame = (20 20; 280 31); text = 'r'; clipsToBounds = YES; opaque = NO; autoresize = RM+BM; layer = &lt;CALayer: 0x15aad0&gt;&gt;}
  </code></pre>
  
  <p>How do I get the text <code>r</code> out of the notif object?</p>