title: Issue with UITabBar button, TabBar button becomes un clickable
body: <p>I am creating a view with <code>UINavigationBar</code> and <code>UITabBar</code>. I have added a button on tab bar, on button click, i am hiding tab bar and show tool bar at the bottom. My code is written for current as well as previous iOS versions. I am using this code  <code>self.edgesForExtendedLayout = UIRectEdgeNone;</code> for iOS7 this is my code : </p>
  
  <pre><code>- (void)hideTabBar {
      UITabBar *tabBar = self.tabBarController.tabBar;
      UIView *parent = tabBar.superview; // UILayoutContainerView
      UIView *content = [parent.subviews objectAtIndex:0];  // UITransitionView
      UIView *window = parent.superview;enter code here
      [UIView animateWithDuration:0.5
                       animations:^{
                           CGRect tabFrame = tabBar.frame;
                           tabFrame.origin.y = CGRectGetMaxY(window.bounds);
                           tabBar.frame = tabFrame;
  
  //                         CGRect contentFrame = content.frame;
  //                         contentFrame.size.height -= tabFrame.size.height;
                           content.frame = window.bounds;
                       }];
  
       if ([[[UIDevice currentDevice] systemVersion] intValue] &lt; 7.0)
       {
      CGRect frame = tbl_AllFiles.frame;
      frame.size.height -=tabBar.frame.size.height;
      tbl_AllFiles.frame = frame;
       }
  
  }
  
  - (void)showTabBar {
      UITabBar *tabBar = self.tabBarController.tabBar;
      UIView *parent = tabBar.superview; // UILayoutContainerView
      UIView *content = [parent.subviews objectAtIndex:0];  // UITransitionView
      UIView *window = parent.superview;
  
      if ([[[UIDevice currentDevice] systemVersion] intValue] &lt; 7.0)
      {
      CGRect frame = tbl_AllFiles.frame;
      frame.size.height +=tabBar.frame.size.height;
      tbl_AllFiles.frame = frame;
      }
  
      [UIView animateWithDuration:0.5
                       animations:^{
                           CGRect tabFrame = tabBar.frame;
                           tabFrame.origin.y = CGRectGetMaxY(window.bounds) - CGRectGetHeight(tabBar.frame);
                           tabBar.frame = tabFrame;
  
                           CGRect contentFrame = content.frame;
                           contentFrame.size.height -= tabFrame.size.height;
                           content.frame = contentFrame;
                       }];
  }
  - (void)loadToolBar {
  
      toolbar = [UIToolbar new];
      toolbar.barStyle = UIBarStyleBlackTranslucent;    
  
  
      moveButton = [UIButton buttonWithType:UIButtonTypeCustom];
      [moveButton setFrame:CGRectMake(10, 10, 120, 25)];
      [moveButton setBackgroundColor:[UIColor redColor]];
      [moveButton setTitle:@"Move" forState:UIControlStateNormal];
      [moveButton addTarget:self action:@selector(moveFile_Folder:) forControlEvents:UIControlEventTouchUpInside];
  
      UIBarButtonItem *moveItem = [[[UIBarButtonItem alloc] initWithCustomView:moveButton] autorelease];
      moveItem.style = UIBarButtonItemStyleBordered;
      NSArray *items = [NSArray arrayWithObjects:moveItem, nil];
      toolbar.items = items;
  
      [toolbar sizeToFit];
      CGFloat toolbarHeight = [toolbar frame].size.height;
      CGRect mainViewBounds = self.view.bounds;
  
      if ([[[UIDevice currentDevice] systemVersion] intValue] &lt; 7.0)
      {
          [toolbar setFrame:CGRectMake(CGRectGetMinX(mainViewBounds),
                                       CGRectGetMinY(mainViewBounds) + CGRectGetHeight(mainViewBounds) - (toolbarHeight),
                                       CGRectGetWidth(mainViewBounds),
                                       toolbarHeight)];
      }
      else
      {
          [toolbar setFrame:CGRectMake(CGRectGetMinX(mainViewBounds),
                                   CGRectGetMinY(mainViewBounds) + CGRectGetHeight(mainViewBounds),
                                   CGRectGetWidth(mainViewBounds),
                                   toolbarHeight)];
      }
  
      [self.view addSubview:toolbar];
      [toolbar bringSubviewToFront:self.view];
  
  }
  </code></pre>
  
  <p>My issue is on button clicked hideTabBar and loadToolBar methods are called. Everything is working fine, except my button is un-clickable now on toolbar.
  Please help me.</p>