title: Show UIButton when Image is touched?
body: <p>is there any way to hide an UIButton until the UIImageView is pressed??
  When the picture is pressed I need to show the back Button, like it works at the Photo App on the iPhone???
  Here is the code of my UIButton:</p>
  
  <pre><code>- (void)viewDidLoad {
      [super viewDidLoad];
  
      [self ladeImage];
      UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
      btn.frame = CGRectMake(10, 10, 40, 40);
      [btn addTarget:self action:@selector(goToViewA) forControlEvents:UIControlEventTouchUpInside];
      [btn setTitle:@"&lt;&lt;" forState:UIControlStateNormal];
      [self.view addSubview:btn];
  
      }
  </code></pre>