iOS：在后台应用中访问设备麦克风

Question

Im wondering, is there a way for an app to access the Microphone of an iDevice while running in the background (The device may or may not be locked)?

I need to listen to the audio input and do some sound recognition.

Cheers from Mexico

Answer 1

According to Apple's developer page , you can use the "audio" permission, which gives this access:

The app plays audible content to the user or records audio while in the background. (This content includes streaming audio or video content using AirPlay.)

Answer 2

我认为这是不可能的。