title: xcode objective-c - avoiding multiple methods with the same name (using 'setEnabled')
body: <p>I'm getting an error in XCode:</p>
  
  <p>multiple methods named 'setEnabled' found with mismatched result, parameter type, or attributes</p>
  
  <p>I'm using the following code within AppDelegate.m:</p>
  
  <pre><code>#import "BluetoothManager.h"
  Class BluetoothManager = objc_getClass( "BluetoothManager" ) ;
  id btCont = [BluetoothManager sharedInstance] ;
  [btCont setEnabled:!currentState] ;
  </code></pre>