无法从Android Studio中的蓝牙麦克风获取输入

问题描述

enter code here

public class BTReceiver extends broadcastReceiver {
    private static final String TAG = "BTReceiver";
    int state = 0;
    AudioManager audioManager;
    @RequiresApi(api = Build.VERSION_CODES.M)
    @Override
    public void onReceive(Context context,Intent intent) {
        Log.d("Z","Received: Bluetooth");
        try {
            Bundle extras = intent.getExtras();
            if (extras != null) { //Do something
                audioManager = (AudioManager) context.getSystemService(AUdio_SERVICE);

                String action = intent.getAction();
                Toast.makeText(context,action,Toast.LENGTH_LONG).show();
                int state;
                if (action.equals(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED)) {
                    state = intent.getIntExtra(BluetoothHeadset.EXTRA_STATE,BluetoothHeadset.STATE_disCONNECTED);
                    if (state == BluetoothHeadset.STATE_CONNECTED) {
                        setModeBluetooth();
                    } else if (state == BluetoothHeadset.STATE_disCONNECTED) {
                        // Calling stopVoiceRecognition always returns false here
                        // as it should since the headset is no longer connected.
                        setModenormal();
                        Log.d(TAG,"Headset disconnected"); //$NON-NLS-1$
                    }
                } else // audio
                {
                    state = intent.getIntExtra(BluetoothHeadset.EXTRA_STATE,BluetoothHeadset.STATE_AUdio_disCONNECTED);
                    Log.d(TAG,"\nAction = " + action + "\nState = " + state); //$NON-NLS-1$ //$NON-NLS-2$
                    if (state == BluetoothHeadset.STATE_AUdio_CONNECTED) {
                        Log.d(TAG,"\nHeadset audio connected");  //$NON-NLS-1$
                        setModeBluetooth();
                    } else if (state == BluetoothHeadset.STATE_AUdio_disCONNECTED) {
                        setModenormal();
                        Log.d(TAG,"Headset audio disconnected"); //$NON-NLS-1$
                    }
                }
            }
        } catch (Exception e) {
            Log.d("Exception","Exception " + e.toString());
        }
    }


    private void setModeBluetooth() {
        try {
            audioManager.setMode(AudioManager.MODE_IN_COMMUNICATION);
            audioManager.startBluetoothSco();
            audioManager.setBluetoothScoOn(true);
        } catch (Exception e) {
            e.printstacktrace();
        }
    }
    private void setModenormal() {
        try {
            audioManager.setMode(AudioManager.MODE_norMAL);
            audioManager.stopBluetoothSco();
            audioManager.setBluetoothScoOn(false);
        } catch (Exception e) {
            e.printstacktrace();
        }
    }
}
 protected void onResume(){
        super.onResume();
        registerReceiver(mHeadsetbroadcastReceiver,new IntentFilter(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED));
        // Calling startVoiceRecognition does not result in immediate audio connection.
        // So register for broadcast of audio connection states. This broadcast will
        // only be sent if startVoiceRecognition returns true.
        registerReceiver(mHeadsetbroadcastReceiver,new IntentFilter(BluetoothHeadset.ACTION_AUdio_STATE_CHANGED));
    }
    @Override
    protected void  onPause(){
        unregisterReceiver(mHeadsetbroadcastReceiver);
        super.onPause();
    }

在这里，我尝试通过蓝牙设备的麦克风而不是音素进行输入。我还在清单中包括了接收机广播，但是我无法通过蓝牙麦克风进行输入。

<receiver
         android:name="BTReceiver"
            android:enabled="true"
            android:permission="android.permission.BLUetoOTH">
            <intent-filter>
                <action android:name="android.bluetooth.adapter.action.CONNECTION_STATE_CHANGED" />
            </intent-filter>
        </receiver>

我只能从手机麦克风中获取输入

我在活动中使用了语音识别，但我刚刚意识到，如果连接了耳机，识别器仍然只能通过音位来收听。有什么方法可以使其通过耳机收听？

解决方法

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