title: Can't edit any objects in method
body: <p>I have a weird problem. I have a tab bar application. When I wanna set the text of an UILabel in any method, there happens nothing. </p>
  
  <p>For example, nothing happens with 'label1' when I call this method:</p>
  
  <pre><code>-(void)setOne:(NSMutableArray *)theArray {
  label1 = [[UILabel alloc] init];
  label1.text = @"Test";
  }
  </code></pre>
  
  <p>Does anyone have a solution for this problem?</p>
  
  <p>Thanks,</p>
  
  <p>Jelle</p>