title: Update Text Label From Another View
body: <p>I have an <code>NSTimer</code> that runs every 10 seconds and is kicked off from LandingController.m. It continues to run as you go to other views in the application.  I want to be able to (when a certain condition is met within that timer) update a label field from another view GuardMenu.m The label I want to update is called CurrentZone.text and I want to update it from value "N" to value "Y."</p>
  
  <p>Here's my timer on LandingController.m</p>
  
  <pre><code>self.messageTimer = [NSTimer scheduledTimerWithTimeInterval:10.0
                          target:self
                          selector:@selector(checkForMessages)                                                                     
                          userInfo:nil
                          repeats:YES];
  </code></pre>
  
  <p>Which calls this on LandingController.m</p>
  
  <pre><code>- (void)checkForMessages
  {
  
          if ( //some condition here ){
  
          //update CurrentZone.text label in GuardMenu view and set equal to "Y"
  
          } else {
  
          //no need to update label in GuardMenu as it's currently equal to "N"
  
          }
  
  
      }
  </code></pre>