有什么方法可以确定正在使用哪个 Android 手机的麦克风进行录音

So after researching and getting some valuable answers from Stackoverflow. I finally succeeded in setting up the desired mic to capture input audio. This question How to select physical microphone and audio recording path in Android helped me get the desired information.
I run this code:

val audioDeviceInfo = audioManager.getDevices(AudioManager.GET_DEVICES_INPUTS)
    var audioInfo :AudioDeviceInfo? = null
    for (dev in audioDeviceInfo) {
        if(dev.address == "bottom"){
            Log.d("TAGAudioInfo", dev.id.toString())
            audioInfo = dev
        }
    }

So what does this code do?
This code gets all the input audio devices currently attached to your android phone. The returned list includes built-in and external devices, such as microphones. Now the important thing is the AudioDeviceInfo address attribute. This attribute tells us about the physical position of the input device.
For the mic, there are two primary addresses.

1. 底端
2. Back (which is usually the mic at the top)
   

So what next after getting this information?
Next step is to set this mic as preferred device to capture audio. The setting of the mic is easy to do as following:

audioRecord.setPreferredDevice(audioInfo);

To cross-verify, you can use the OboeTester Application available on Google Playstore, which allows you to select any source to capture audio.
So, in this way, I resolved this issue of capturing audio from desired mic.
Also, please note that this varies from manufacturer to manufacturer of devices. Even after selecting the bottom microphone, some devices still use both mics to capture audio. But this doesn't affect me as my primary purpose of capturing audio from the bottom microphone is resolved.