Trying to understand setting content providers in Android

I wanna change APN settings in a phone. Looked the api and there is a content provider named ACTION_APN_SETTINGS

developer.android.com/reference/android/provider/Settings.html#ACTION_APN_SETTINGS

but i'm having a hard time figuring out how to use it. Is there any example or something 开发者_高级运维that does not involve the "contacts" content provider?

Thanks.

You can check out the source code of the Android project.

I guess this is the code that you are looking for.