How to upload images in background in iOS?

What are various ways to make a background image rotate in iOS?

• Once you add the background image to the .xib, how can you make  it rotate? For example, if you have a hypnotic swirl and want it to rotate. Photo retrieved on June 13, 2012 from: http://map-bms.wikipedia.org/wiki/Gambar:Hypnotic-spiral.jpg Or if you wanted to create a astronomy app with the planets circling the sun. In this example, there would be one sky background. then a sun image on top. Then images of planets, each planet would be drawn and then have a transparent background then stacked on top of the other. Of course they would all br programmed to have different speeds and orbital paths. I know there are various ways, what would you use and why? Please only post an answer if you have a sample of code or a discussion on technique. If you have a question, link for a tutorial, or a general comment, please add that as a comment and not an answer.

• Answer:

  If you're just trying to rotate UIView objects you can animate changes to their transform property(http://developer.apple.com/library/ios/#documentation/uikit/reference/uiview_class/UIView/UIView.html#//apple_ref/doc/uid/TP40006816-CH3-SW4). There's even a CGAffineTransformMakeRotation function specifically for creating transforms which rotate your view (http://developer.apple.com/library/ios/#documentation/GraphicsImaging/Reference/CGAffineTransform/Reference/reference.html ).