蓝牙和免提切换类

import android.content.Context; import android.media.AudioManager; import android.os.Build;

import static android.media.AudioManager.AUDIOFOCUS_GAIN;

/**

Created by Administrator on 2020/10/19. */

public class AudioUtils { private static int lastModel = -10; /** * 音频外放 */ public static void changeToSpeaker(Context context) { AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); //注意此处，蓝牙未断开时使用MODE_IN_COMMUNICATION而不是MODE_NORMAL audioManager.setMode(AudioManager.MODE_IN_COMMUNICATION); audioManager.stopBluetoothSco(); audioManager.setBluetoothScoOn(false); audioManager.setSpeakerphoneOn(true); }

/** * 切换到蓝牙音箱 */ public static void changeToHeadset(Context context) { AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); audioManager.setMode(AudioManager.MODE_IN_COMMUNICATION); audioManager.startBluetoothSco(); audioManager.setBluetoothScoOn(true); audioManager.setSpeakerphoneOn(false); } /** * 切换到听筒 */ public static void changeToReceiver(Context context) { AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); audioManager.setSpeakerphoneOn(false); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { audioManager.setMode(AudioManager.MODE_IN_COMMUNICATION); } else { audioManager.setMode(AudioManager.MODE_IN_CALL); } } public static void dispose(Context context, AudioManager.OnAudioFocusChangeListener focusRequest) { AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); audioManager.setMode(lastModel); if (audioManager.isBluetoothScoOn()) { audioManager.setBluetoothScoOn(false); audioManager.stopBluetoothSco(); } audioManager.unloadSoundEffects(); if (null != focusRequest) { audioManager.abandonAudioFocus(focusRequest); } } public static void getModel(Context context) { AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); lastModel = audioManager.getMode(); } public static void changeToNomal(Context context) { AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); audioManager.setMode(AudioManager.MODE_NORMAL); } public static boolean isWiredHeadsetOn(Context context) { AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); return audioManager.isWiredHeadsetOn(); } public static boolean isBluetoothA2dpOn(Context context) { AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); return audioManager.isBluetoothA2dpOn(); } /** * context 传入的是MicroContext.getApplication() * @param context */ public static void choiceAudioModel(Context context) { if (isWiredHeadsetOn(context)) { changeToReceiver(context); } else if (isBluetoothA2dpOn(context)) { changeToHeadset(context); } else { changeToSpeaker(context); } } public static void pauseMusic(Context context, AudioManager.OnAudioFocusChangeListener focusRequest) { AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); audioManager.requestAudioFocus(focusRequest, AudioManager.STREAM_MUSIC, AUDIOFOCUS_GAIN); }

}