是否可以将十六进制数据快速发送到 A2DP 蓝牙设备？

Question

I am developing an application on iOS that connects to a Bluetooth A2DP device but I can not send instructions in hexadecimal to make it work. Somebody could help me? I can not find information.

With AVAudioSession.sharedInstance().currentRoute I can see the UID and the name of the device but not send data.

let route  = AVAudioSession.sharedInstance().currentRoute
    let outPort = route.outputs.first
    if let outPort = outPort {
        print("out port name:\(outPort.portName)")
   }

Could you help me?

Thanks!

Answer 1

You should check MFi and ExternalAccessory framework in order to make your device communicates with iOS A2DP. From iOS App side, it is very high level of perspective. you only care about sending audio data using AVAudioEngine, AudioUnit, or whatever else. Check these urls might help you https://mfi.apple.com/MFiWeb/getFAQ.action#1-2 https://developer.apple.com/documentation/externalaccessory