Removing Subview after the completion of Animation - Transition - iPhone/iPad

On a button click, I have placed a TRANSPARENT View on the current View. For the transparent view to cover the entire screen including navigation bar, I have coded like this :

[AppDelegate.window.rootViewController.view addSubview:coverView];

In the button click action,I have put some animation code.

Now, on a button click in Transparent View, I have put the following code to perform a sliding transition effect:

    CATransition *animation = [CATransition animation];
    [animation setDuration:0.8];
    [animation setType:kCATransitionPush];
    [animation setSubtype:kCATransitionFromLeft];
    [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
    [[TransparentView.view layer] addAnimation:animation forKey:nil];
    [TransparentView removefromSuperview];

I need the transparent view to slide towards left/right (in other words..removing TransparentView from view) and MainView should appear as before.

But its not working.. Could anyone help on this ?