Who can explain what the API for calling SMS and call records in iOS looks like?

1, no jailbreak, only dialing API, no short message related API (except sending short messages through the call system panel).

2.iOS call records cannot be retrieved through non-private API. You can send short messages by calling the system panel, but they cannot be collected into the program.

Apple's ban on such features is also a benefit of iOS's privacy protection. It is not just a program that can call private information such as address book, message and location. Think for yourself, if a game can read your text messages and your address book casually, will you like it?