Is it still being prohibited changing lock screen(wallpaper) in iPhone OS 3.x?

Question

I checked this posting , so it was impossible to do it. But it's old posting, and somebody are saying me there is an app which can change wallpaper(lock screen). Is this allowed now?

-- edit --

I'm sorry for my question was unclear. I was asked a programmatic and regular (which can be approved by Apple AppStore) way to change lock-screen wallpaper in my own app.

Not for any hacked, jail-breaken devices.

Answer 1

As far as I'm aware, you would not be able to change the wallpaper for the device through the SDK, or at least not in a way in which Apple would approve of. I suspect allowing this through the SDK could cause problems, apps could obnoxiously add advertisements to the wallpaper, etc.

The only way I can think of around your problem would be to save the target image to the user's camera roll and instruct the user to change it for themselves.

There may be a way to change the wallpaper for a jailbroken device, but this of course violates the iPhone developer program license agreement.