Render very big UIscrollview UIImage + Video

I'm creating a particular features on my app, and I don't know how's the best way to do that.

I have a UIScrollview big as the screen (1024*748). Inside this UIScrollView I insert a UIView. This view is very big (8000*748) and represent a table. On this table I insert different UIImageView and some video. I present this view to the user fitted in the scroll view and then the user can pinch to zoom and to see the video and the image in detail.

I tried 2 different approaches:

1. In the first approach I load all the content of the UIScrollView asynchronously and when it's loaded I present it to the user and set the zoom level to 0.4.

2. I then tried to use CATiledLayer to have t开发者_如何学Gohe same behavior of the Google map app, but I have difficulties when I insert Video.

Can anyone tell me what's the best way?

What's wrong with the first approach?

You say your having trouble with the second approach, so why not use the first approach?