title: How to add a view behind other view in iOS
body: <p>I want to add a view under my tab bar analog in iOS and then show it with animation coming from behind it. But when I use my code, the view that must come from behind my tab bar  overlaps my tab bar for a while. </p>
  
  <p><img src="https://i.stack.imgur.com/72HWj.png" alt="tab bar and a view that shows when tab bar button pressed"></p>
  
  <p>This is my code: </p>
  
  <pre><code>- (void)handlePressedButton {
  if (pressedButton.selected) {
      [UIView beginAnimations:nil context:nil];
      [UIView setAnimationDuration:0.5];
      CGAffineTransform transform1 = CGAffineTransformMakeTranslation(-196.0, 0.0);
      CGAffineTransform transform2 = CGAffineTransformMakeTranslation(0.0, 0.0);
      [leftPanelView setTransform:transform1];
      [movedView setTransform:transform2];
      [UIView commitAnimations];
      pressedButton.selected = NO;
  }
  else {
      pressedButton.selected = YES;
      if (leftPanelView) {
          [leftPanelView removeFromSuperview];
          leftPanelView = nil;
      }
      CGRect viewFrame = CGRectMake(-196, 0, 236, 748);
      leftPanelView = [[UIView alloc] initWithFrame:viewFrame];
      leftPanelView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"left-nav-content.png"]];
  
      // Code to populate leftPanelView according to what button is pressed.
      [self populateLeftPanelView];
  
      [UIView beginAnimations:nil context:nil];
      [UIView setAnimationDuration:0.5];
      [self.view addSubview:leftPanelView];
      CGAffineTransform transform1 = CGAffineTransformMakeTranslation(236.0, 0.0);
      CGAffineTransform transform2 = CGAffineTransformMakeTranslation(112.0, 0.0);
      [leftPanelView setTransform:transform1];
      [movedView setTransform:transform2];
      [UIView commitAnimations];
  }
  </code></pre>
  
  <p>}</p>
  
  <p>Here the leftPanelView is the view that must come under a tab bar. Moved view is another view, that is at the right of left panel (don't mind it)</p>