title: get notify when predictive is hidden by user in IOS
body: <p>subject:</p>
  
  <p>for ios 8 i need some notification when if i hide the word predictive by swipe down the predictive view<br>
  i required notification for both predictive ON/OFF.can u pl give some idea?</p>
  
  <p>my try:</p>
  
  <p>i did the frame up and down for seperating ios 7 / 8. but when i hide the word predictive by swipe down the predictive view, my text view still in up frame it did get down..</p>
  
  <p>this is my code</p>
  
  <pre><code>if([[[UIDevice currentDevice]systemVersion] floatValue]&gt;=8.0f)
  {
  
      ChatViewBottomTool.frame = CGRectMake(screenArea.origin.x, screenArea.size.height-310, screenArea.size.width,44);
      ChatViewTable.frame = CGRectMake(ChatViewTable.frame.origin.x, ChatViewTable.frame.origin.y, screenArea.size.width,  screenArea.size.height-372);
      [ChatViewBottomTool sizeToFit];
  
      }else{
  
      ChatViewBottomTool.frame = CGRectMake(screenArea.origin.x, screenArea.size.height-280, screenArea.size.width,44);
      ChatViewTable.frame = CGRectMake(ChatViewTable.frame.origin.x, ChatViewTable.frame.origin.y, screenArea.size.width,  screenArea.size.height-342);
      [ChatViewBottomTool sizeToFit];
   }
  </code></pre>