title: how to know uitableview is pressed when empty
body: <p>i am making a chat application, and in the chat window there are uilabels in uitableviewcells. initially the keyboard will be present but when the user touches on any place on uitableview, i will make the chat window as fullscreen (dissappearing keyboard).</p>
  
  <p>i cant find a way/trick to accomplish this.</p>
  
  <p>i have tried the following method: by using tableview:didselectrowatindexpath, i am able to do it but, user needs to press on an existent uitableviewcell. but i want to understand the press even when uitableview is empty..</p>
  
  <p><em>note: my chat tableview is interactive e.x. some rows will include image button which need to be pressable, so i cant just put an invisible button onto uitableview.</em></p>
  
  <p>thank you for your thoughts</p>
  
  <p>Aytunc Isseven</p>