title: How to set Tab bar selected index to nil or null?
body: <p>I need to set the tab bar selected index to nil because when I launching the my app, the tab bar automatically selected the default index (i.e) 0.</p>
  
  <p>How can I set, the tab bar does not selected any index. if put this,</p>
  
  <p><strong>[tabBarController setSelectedIndex:nil];</strong></p>
  
  <p>it gives the <strong>"Incompatible pointer to integer conversion sending 'NSNumber *__strong' to parameter of type 'NSUInteger' (aka 'unsigned long')"</strong> this error.</p>
  
  <p>So Please help me to work on this. </p>