iPhone OS 3.x 中是否仍禁止更改锁屏（壁纸）？
我检查了此帖子，所以不可能做到这一点。 但这是旧帖子，有人说我有一个可以更改壁纸（锁定屏幕）的应用程序。现在允许这样做吗？
-- 编辑 --
很抱歉我的问题不清楚。 我被要求以编程和常规（可以得到 Apple AppStore 批准）的方式来更改我自己的应用程序中的锁屏壁纸。
不适用于任何被黑、越狱的设备。
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.
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据我所知，您无法通过 SDK 更改设备的壁纸，或者至少不能以 Apple 批准的方式更改设备的壁纸。我怀疑通过 SDK 允许这样做可能会导致问题，应用程序可能会令人讨厌地在壁纸中添加广告等。
我能想到的解决您的问题的唯一方法是将目标图像保存到用户的相机胶卷中并指示用户进行更改为他们自己。
可能有一种方法可以为越狱设备更改壁纸，但这当然违反了 iPhone 开发者计划许可协议。
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.