android实现蓝牙耳机的连接及列表的管理
16lz
2021-12-04
随着物联网的发展，现在蓝牙设备越来越多了，像蓝牙耳机、蓝牙音箱等，那么怎样去连接管理这些设备呢，本文将通过蓝牙耳机做实例，来实现蓝牙的开关、搜索、配对、连接、设备蓝牙的可见性、获取蓝牙信息等；
先来看看具体效果：
1、添加权限
2、初始化
mBluetoothManager = (BluetoothManager) mContext.getSystemService(Context.BLUETOOTH_SERVICE); mBluetoothadapter = mBluetoothManager.getAdapter();3、设置广播监听
mFilter = new IntentFilter(); mFilter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);//状态改变 mFilter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED); //蓝牙开关状态 mFilter.addAction(BluetoothDevice.ACTION_FOUND);//蓝牙发现新设备(未配对) mFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED); //蓝牙开始搜索 mFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED); //蓝牙搜索结束 mFilter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED); //设备配对状态改变 mFilter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);//设备建立连接 mFilter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED); //设备断开连接 mFilter.addAction(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED); //BluetoothAdapter连接状态 mFilter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED); //BluetoothHeadset连接状态 mFilter.addAction(BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED); //BluetoothA2dp连接状态4、搜索蓝牙
搜索蓝牙之前要判断蓝牙是否打开，打开蓝牙可以使用enable()方法，当蓝牙打开后，调用startDiscovery()进行搜索，具体相关代码如下：
@Override public boolean open() {//打开蓝牙 ture-打开成功 if(mBluetoothadapter==null){ return false; } return mBluetoothadapter.enable(); } @Override public boolean close() {//关闭蓝牙 if(mBluetoothadapter==null){ return true; } return mBluetoothadapter.disable(); } @Override public boolean startDiscovery() {//搜索蓝牙 if(mBluetoothadapter==null){ return false; } if (mBluetoothadapter.isDiscovering()) { mBluetoothadapter.cancelDiscovery(); } return mBluetoothadapter.startDiscovery(); } @Override public boolean stopDiscovery() {//停止搜索蓝牙 if(mBluetoothadapter==null||!mBluetoothadapter.isDiscovering()){ return true; } return mBluetoothadapter.cancelDiscovery(); }5、连接设备：
当搜索完成之后，找到要连接的设备进行连接，连接之前我们需要获取各种设备的相关代理服务，一般常用的代理服务有这两个种：BluetoothA2dp、BluetoothHeadset。BluetoothA2dp进行音频数据传送服务，BluetoothHeadset耳机相关服务。首页获取相关服务，具体代码如下：
mBluetoothadapter.getProfileProxy(mContext,mProfileServiceListener, BluetoothProfile.A2DP); mBluetoothadapter.getProfileProxy(mContext,mProfileServiceListener, BluetoothProfile.HEADSET);该方式没有直接方法相关服务代理，而是通过服务监听返回，mProfileServiceListener的相关代码如下：
private BluetoothProfile.ServiceListener mProfileServiceListener=new BluetoothProfile.ServiceListener() { @Override public void onServiceConnected(int profile, BluetoothProfile proxy) { Log.i(TAG, "onServiceConnected profile="+profile); if(profile == BluetoothProfile.A2DP){//播放音乐 mBluetoothA2dp = (BluetoothA2dp) proxy; //转换 isA2dpComplete=true; }else if(profile == BluetoothProfile.HEADSET){//打电话 mBluetoothHeadset = (BluetoothHeadset) proxy; isHeadsetComplete=true; } if(isA2dpComplete&&isHeadsetComplete&&isBackConDev&&mBTConnectListener!=null){ List devices=new ArrayList<>(); if(mBluetoothA2dp!=null){// removeA2dpMacEqual(); List deviceList=mBluetoothA2dp.getConnectedDevices(); if(deviceList!=null&&deviceList.size()>0){ devices.addAll(deviceList); } } if(mBluetoothHeadset!=null){// removeHeadsetMacEqual(); List deviceList=mBluetoothHeadset.getConnectedDevices(); if(deviceList!=null&&deviceList.size()>0){ devices.addAll(deviceList); } } mBTConnectListener.onConnectedDevice(devices); }// else if(profile == BluetoothProfile.HEALTH){//健康// mBluetoothHealth = (BluetoothHealth) proxy;// } } @Override public void onServiceDisconnected(int profile) { Log.i(TAG, "onServiceDisconnected profile="+profile); if(profile == BluetoothProfile.A2DP){ mBluetoothA2dp = null; }else if(profile == BluetoothProfile.HEADSET){ mBluetoothHeadset = null; }// else if(profile == BluetoothProfile.HEALTH) {// mBluetoothHealth = null;// } } }; 获取相关的代理服务之后，就可以连接相应的设备了，具体相关代码如下：
@Override public boolean connect(BluetoothDevice device) { int styleMajor = device.getBluetoothClass().getMajorDeviceClass(); boolean isConnect=false; switch (styleMajor) { case BluetoothClass.Device.Major.AUDIO_VIDEO://音频设备 if(connectA2dpAndHeadSet(BluetoothHeadset.class,mBluetoothHeadset,device)){ isConnect=true; } if(connectA2dpAndHeadSet(BluetoothA2dp.class,mBluetoothA2dp,device)){ isConnect=true; } return isConnect;// case BluetoothClass.Device.Major.COMPUTER://电脑// break;// case BluetoothClass.Device.Major.HEALTH://健康状况// break;// case BluetoothClass.Device.Major.IMAGING://镜像，映像// break; case BluetoothClass.Device.Major.MISC://麦克风 if(connectA2dpAndHeadSet(BluetoothHeadset.class,mBluetoothHeadset,device)){ isConnect=true; } if(connectA2dpAndHeadSet(BluetoothA2dp.class,mBluetoothA2dp,device)){ isConnect=true; } return isConnect;// case BluetoothClass.Device.Major.NETWORKING://网络// break;// case BluetoothClass.Device.Major.PERIPHERAL://外部设备// break; case BluetoothClass.Device.Major.PHONE://电话 if(connectA2dpAndHeadSet(BluetoothHeadset.class,mBluetoothHeadset,device)){ isConnect=true; } if(connectA2dpAndHeadSet(BluetoothA2dp.class,mBluetoothA2dp,device)){ isConnect=true; } return isConnect;// case BluetoothClass.Device.Major.TOY://玩具// break;// case BluetoothClass.Device.Major.UNCATEGORIZED://未知的// break;// case BluetoothClass.Device.Major.WEARABLE://穿戴设备// break; } if(connectA2dpAndHeadSet(BluetoothHeadset.class,mBluetoothHeadset,device)){ isConnect=true; } if(connectA2dpAndHeadSet(BluetoothA2dp.class,mBluetoothA2dp,device)){ isConnect=true; } return isConnect; } /** * 连接A2dp 与 HeadSet * @param device * @param device */ private boolean connectA2dpAndHeadSet(Class btClass,BluetoothProfile bluetoothProfile,BluetoothDevice device){ setPriority(device, 100); //设置priority try { //通过反射获取BluetoothA2dp中connect方法（hide的），进行连接。 Method connectMethod =btClass.getMethod("connect", BluetoothDevice.class); connectMethod.setAccessible(true); connectMethod.invoke(bluetoothProfile, device); return true; } catch (Exception e) { e.printStackTrace(); } return false; } /** * 设置优先级 * 优先级是必要的，否则可能导致连接或断开连接失败等问题 * @param device * @param priority */ private void setPriority(BluetoothDevice device, int priority) { if (mBluetoothA2dp == null) return; try {//通过反射获取BluetoothA2dp中setPriority方法（hide的），设置优先级 Method connectMethod =BluetoothA2dp.class.getMethod("setPriority", BluetoothDevice.class,int.class); connectMethod.setAccessible(true); connectMethod.invoke(mBluetoothA2dp, device, priority); } catch (Exception e) { e.printStackTrace(); } }6、其他蓝牙设备的连接
不同的蓝牙设备，其功能也不相同，android中可以更具设备的类型来连接相应的服务，android中将设备大致分为如下如下几类，在代码中使用如下：
int styleMajor = bluetoothDevice.getBluetoothClass().getMajorDeviceClass();//获取蓝牙主要分类 switch (styleMajor) { case BluetoothClass.Device.Major.AUDIO_VIDEO://音频设备 holder.img_signal.setImageResource(R.mipmap.icon_headset); break; case BluetoothClass.Device.Major.COMPUTER://电脑 holder.img_signal.setImageResource(R.mipmap.icon_computer); break; case BluetoothClass.Device.Major.HEALTH://健康状况 holder.img_signal.setImageResource(R.mipmap.icon_bluetooth); break; case BluetoothClass.Device.Major.IMAGING://镜像，映像 holder.img_signal.setImageResource(R.mipmap.icon_bluetooth); break; case BluetoothClass.Device.Major.MISC://麦克风 holder.img_signal.setImageResource(R.mipmap.icon_bluetooth); break; case BluetoothClass.Device.Major.NETWORKING://网络 holder.img_signal.setImageResource(R.mipmap.icon_bluetooth); break; case BluetoothClass.Device.Major.PERIPHERAL://外部设备 holder.img_signal.setImageResource(R.mipmap.icon_bluetooth); break; case BluetoothClass.Device.Major.PHONE://电话 holder.img_signal.setImageResource(R.mipmap.icon_phone); break; case BluetoothClass.Device.Major.TOY://玩具 holder.img_signal.setImageResource(R.mipmap.icon_bluetooth); break; case BluetoothClass.Device.Major.UNCATEGORIZED://未知的 holder.img_signal.setImageResource(R.mipmap.icon_bluetooth); break; case BluetoothClass.Device.Major.WEARABLE://穿戴设备 holder.img_signal.setImageResource(R.mipmap.icon_bluetooth); break; }通过蓝牙主要分类来区分不同类型的设备，之后再通过相应的服务代理连接设备，android相关的服务代理如下：
public boolean getProfileProxy(Context context, BluetoothProfile.ServiceListener listener, int profile) { if (context == null || listener == null) return false; if (profile == BluetoothProfile.HEADSET) { BluetoothHeadset headset = new BluetoothHeadset(context, listener); return true; } else if (profile == BluetoothProfile.A2DP) { BluetoothA2dp a2dp = new BluetoothA2dp(context, listener); return true; } else if (profile == BluetoothProfile.A2DP_SINK) { BluetoothA2dpSink a2dpSink = new BluetoothA2dpSink(context, listener); return true; } else if (profile == BluetoothProfile.AVRCP_CONTROLLER) { BluetoothAvrcpController avrcp = new BluetoothAvrcpController(context, listener); return true; } else if (profile == BluetoothProfile.INPUT_DEVICE) { BluetoothInputDevice iDev = new BluetoothInputDevice(context, listener); return true; } else if (profile == BluetoothProfile.PAN) { BluetoothPan pan = new BluetoothPan(context, listener); return true; } else if (profile == BluetoothProfile.HEALTH) { BluetoothHealth health = new BluetoothHealth(context, listener); return true; } else if (profile == BluetoothProfile.MAP) { BluetoothMap map = new BluetoothMap(context, listener); return true; } else if (profile == BluetoothProfile.HEADSET_CLIENT) { BluetoothHeadsetClient headsetClient = new BluetoothHeadsetClient(context, listener); return true; } else if (profile == BluetoothProfile.SAP) { BluetoothSap sap = new BluetoothSap(context, listener); return true; } else if (profile == BluetoothProfile.PBAP_CLIENT) { BluetoothPbapClient pbapClient = new BluetoothPbapClient(context, listener); return true; } else if (profile == BluetoothProfile.MAP_CLIENT) { BluetoothMapClient mapClient = new BluetoothMapClient(context, listener); return true; } else if (profile == BluetoothProfile.INPUT_HOST) { BluetoothInputHost iHost = new BluetoothInputHost(context, listener); return true; } else { return false; } }可以根据具体的设备来获取相应的服务，获取的方式跟获取BluetoothA2dp、BluetoothHeadset的方式是一致的。
好了，到这里基本上要的的功能的实现完了，下面将BluetoothHelper类的带放到下面，面时具体相关的功能实现：
package com.qt.bluetooth.bluetooth;import android.bluetooth.BluetoothA2dp;import android.bluetooth.BluetoothAdapter;import android.bluetooth.BluetoothClass;import android.bluetooth.BluetoothDevice;import android.bluetooth.BluetoothHeadset;import android.bluetooth.BluetoothManager;import android.bluetooth.BluetoothProfile;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.text.TextUtils;import android.util.Log;import com.qt.bluetooth.bluetooth.interfaces.IBTBoudListener;import com.qt.bluetooth.bluetooth.interfaces.IBTConnectListener;import com.qt.bluetooth.bluetooth.interfaces.IBTScanListener;import com.qt.bluetooth.bluetooth.interfaces.IBTStateListener;import com.qt.bluetooth.bluetooth.interfaces.IBluetoothHelper;import java.lang.reflect.Method;import java.util.ArrayList;import java.util.List;import java.util.Set;/** *@date 2019/7/23 *@desc 蓝牙辅助类 * */public class BluetoothHelper implements IBluetoothHelper { private final String TAG="BluetoothHelper"; private Context mContext; private BluetoothManager mBluetoothManager; private BluetoothAdapter mBluetoothadapter; private BluetoothA2dp mBluetoothA2dp; private BluetoothHeadset mBluetoothHeadset;// private BluetoothHealth mBluetoothHealth; private IntentFilter mFilter; private IBTStateListener mBTStateListener;//蓝牙状态监听 private IBTScanListener mBTScanListener;//蓝牙搜索监听 private IBTBoudListener mBTBoudListener;//蓝牙绑定监听 private IBTConnectListener mBTConnectListener;//连接监听 private boolean isBackConDev;//是否返回已连接的设备 private boolean isA2dpComplete,isHeadsetComplete; @Override public void init(Context context) { mContext=context.getApplicationContext(); mBluetoothManager = (BluetoothManager) mContext.getSystemService(Context.BLUETOOTH_SERVICE); mBluetoothadapter = mBluetoothManager.getAdapter(); isA2dpComplete=false; isHeadsetComplete=false; mBluetoothadapter.getProfileProxy(mContext,mProfileServiceListener, BluetoothProfile.A2DP); mBluetoothadapter.getProfileProxy(mContext,mProfileServiceListener, BluetoothProfile.HEADSET);// mBluetoothadapter.getProfileProxy(mContext,mProfileServiceListener, BluetoothProfile.HEALTH); if(mFilter==null){ mContext.registerReceiver(mBluetoothReceiver,makeFilter()); } } private IntentFilter makeFilter() { if(mFilter==null){ mFilter = new IntentFilter(); mFilter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);//状态改变 mFilter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED); //蓝牙开关状态 mFilter.addAction(BluetoothDevice.ACTION_FOUND);//蓝牙发现新设备(未配对) mFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED); //蓝牙开始搜索 mFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED); //蓝牙搜索结束 mFilter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED); //设备配对状态改变 mFilter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);//设备建立连接 mFilter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED); //设备断开连接 mFilter.addAction(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED); //BluetoothAdapter连接状态 mFilter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED); //BluetoothHeadset连接状态 mFilter.addAction(BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED); //BluetoothA2dp连接状态 } return mFilter; } /** * 连接A2dp 与 HeadSet * @param device * @param device */ private boolean connectA2dpAndHeadSet(Class btClass,BluetoothProfile bluetoothProfile,BluetoothDevice device){ setPriority(device, 100); //设置priority try { //通过反射获取BluetoothA2dp中connect方法（hide的），进行连接。 Method connectMethod =btClass.getMethod("connect", BluetoothDevice.class); connectMethod.setAccessible(true); connectMethod.invoke(bluetoothProfile, device); return true; } catch (Exception e) { e.printStackTrace(); } return false; } /** * 断开A2dp 与 HeadSet * @param device */ private boolean disConnectA2dpAndHeadSet(Class btClass,BluetoothProfile bluetoothProfile,BluetoothDevice device){ setPriority(device, 0); try { //通过反射获取BluetoothA2dp中connect方法（hide的），断开连接。 Method connectMethod =btClass.getMethod("disconnect", BluetoothDevice.class); connectMethod.setAccessible(true); connectMethod.invoke(bluetoothProfile, device); return true; } catch (Exception e) { e.printStackTrace(); } return false; } /** * 设置优先级 * 优先级是必要的，否则可能导致连接或断开连接失败等问题 * @param device * @param priority */ private void setPriority(BluetoothDevice device, int priority) { if (mBluetoothA2dp == null) return; try {//通过反射获取BluetoothA2dp中setPriority方法（hide的），设置优先级 Method connectMethod =BluetoothA2dp.class.getMethod("setPriority", BluetoothDevice.class,int.class); connectMethod.setAccessible(true); connectMethod.invoke(mBluetoothA2dp, device, priority); } catch (Exception e) { e.printStackTrace(); } } @Override public boolean open() {//打开蓝牙 ture-打开成功 if(mBluetoothadapter==null){ return false; } return mBluetoothadapter.enable(); } @Override public boolean close() {//关闭蓝牙 if(mBluetoothadapter==null){ return true; } return mBluetoothadapter.disable(); } @Override public boolean startDiscovery() {//搜索蓝牙 if(mBluetoothadapter==null){ return false; } if (mBluetoothadapter.isDiscovering()) { mBluetoothadapter.cancelDiscovery(); } return mBluetoothadapter.startDiscovery(); } @Override public boolean stopDiscovery() {//停止搜索蓝牙 if(mBluetoothadapter==null||!mBluetoothadapter.isDiscovering()){ return true; } return mBluetoothadapter.cancelDiscovery(); } @Override public String getName() {//获取本地蓝牙名称 if(mBluetoothadapter==null){ return null; } return mBluetoothadapter.getName(); } @Override public boolean setName(String name) {//设置蓝牙的名称 if (mBluetoothadapter == null) { return false; } return mBluetoothadapter.setName(name); } @Override public String getAddress() {//获取本地蓝牙地址 if(mBluetoothadapter==null){ return null; } return mBluetoothadapter.getAddress(); } @Override public boolean isEnable() {//蓝牙是否可用，即是否打开 if(mBluetoothadapter==null){ return false; } return mBluetoothadapter.isEnabled(); } @Override public boolean isSupport() {//是否支持蓝牙 return mBluetoothadapter==null?false:true; } @Override public Set getBondedDevices() {//获取以配对设备 if(mBluetoothadapter==null){ return null; } return mBluetoothadapter.getBondedDevices(); } @Override public boolean createBond(BluetoothDevice device) {//配对 if(device==null){ return false; } return device.createBond(); } @Override public boolean removeBond(BluetoothDevice device) {//取消配对 Class btDeviceCls = BluetoothDevice.class; Method removeBond = null; try { removeBond = btDeviceCls.getMethod("removeBond"); removeBond.setAccessible(true); return (boolean) removeBond.invoke(device); } catch (Exception e) { e.printStackTrace(); return false; } } @Override public boolean connect(BluetoothDevice device) { int styleMajor = device.getBluetoothClass().getMajorDeviceClass(); boolean isConnect=false; switch (styleMajor) { case BluetoothClass.Device.Major.AUDIO_VIDEO://音频设备 if(connectA2dpAndHeadSet(BluetoothHeadset.class,mBluetoothHeadset,device)){ isConnect=true; } if(connectA2dpAndHeadSet(BluetoothA2dp.class,mBluetoothA2dp,device)){ isConnect=true; } return isConnect;// case BluetoothClass.Device.Major.COMPUTER://电脑// break;// case BluetoothClass.Device.Major.HEALTH://健康状况// break;// case BluetoothClass.Device.Major.IMAGING://镜像，映像// break; case BluetoothClass.Device.Major.MISC://麦克风 if(connectA2dpAndHeadSet(BluetoothHeadset.class,mBluetoothHeadset,device)){ isConnect=true; } if(connectA2dpAndHeadSet(BluetoothA2dp.class,mBluetoothA2dp,device)){ isConnect=true; } return isConnect;// case BluetoothClass.Device.Major.NETWORKING://网络// break;// case BluetoothClass.Device.Major.PERIPHERAL://外部设备// break; case BluetoothClass.Device.Major.PHONE://电话 if(connectA2dpAndHeadSet(BluetoothHeadset.class,mBluetoothHeadset,device)){ isConnect=true; } if(connectA2dpAndHeadSet(BluetoothA2dp.class,mBluetoothA2dp,device)){ isConnect=true; } return isConnect;// case BluetoothClass.Device.Major.TOY://玩具// break;// case BluetoothClass.Device.Major.UNCATEGORIZED://未知的// break;// case BluetoothClass.Device.Major.WEARABLE://穿戴设备// break; } if(connectA2dpAndHeadSet(BluetoothHeadset.class,mBluetoothHeadset,device)){ isConnect=true; } if(connectA2dpAndHeadSet(BluetoothA2dp.class,mBluetoothA2dp,device)){ isConnect=true; } return isConnect; } @Override public boolean disconnect(BluetoothDevice device) { boolean isDisconnect=false; if(mBluetoothA2dp!=null){ List devices=mBluetoothA2dp.getConnectedDevices(); if(devices!=null&&devices.contains(device)){ Log.d(TAG,"disconnect A2dp"); isDisconnect=disConnectA2dpAndHeadSet(BluetoothA2dp.class,mBluetoothA2dp,device); } } if(mBluetoothHeadset!=null){ List devices=mBluetoothHeadset.getConnectedDevices(); if(devices!=null&&devices.contains(device)){ Log.d(TAG,"disconnect Headset"); isDisconnect=disConnectA2dpAndHeadSet(BluetoothHeadset.class,mBluetoothHeadset,device); } } return isDisconnect;// int styleMajor = device.getBluetoothClass().getMajorDeviceClass();// switch (styleMajor) {// case BluetoothClass.Device.Major.AUDIO_VIDEO://音频设备// return disConnectA2dpAndHeadSet(BluetoothA2dp.class,device);// case BluetoothClass.Device.Major.COMPUTER://电脑// break;// case BluetoothClass.Device.Major.HEALTH://健康状况// return disConnectA2dpAndHeadSet(BluetoothHealth.class,device);// case BluetoothClass.Device.Major.IMAGING://镜像，映像// break;// case BluetoothClass.Device.Major.MISC://麦克风// break;// case BluetoothClass.Device.Major.NETWORKING://网络// break;// case BluetoothClass.Device.Major.PERIPHERAL://外部设备// break;// case BluetoothClass.Device.Major.PHONE://电话// return disConnectA2dpAndHeadSet(BluetoothHeadset.class,device);// case BluetoothClass.Device.Major.TOY://玩具// break;// case BluetoothClass.Device.Major.UNCATEGORIZED://未知的// break;// case BluetoothClass.Device.Major.WEARABLE://穿戴设备// break;// }// return disConnectA2dpAndHeadSet(BluetoothA2dp.class,device); } @Override public void destroy() { if(mFilter!=null){ mFilter=null; mContext.unregisterReceiver(mBluetoothReceiver); } isA2dpComplete=false; isHeadsetComplete=false; mBluetoothadapter.closeProfileProxy(BluetoothProfile.A2DP,mBluetoothA2dp); mBluetoothadapter.closeProfileProxy(BluetoothProfile.HEADSET,mBluetoothHeadset); } @Override public void getConnectedDevices() { if(isBackConDev){ return; } isBackConDev=true; if(isA2dpComplete&&isHeadsetComplete){ List devices=new ArrayList<>(); if(mBluetoothA2dp!=null){// removeA2dpMacEqual(); List deviceList=mBluetoothA2dp.getConnectedDevices(); if(deviceList!=null&&deviceList.size()>0){ devices.addAll(deviceList); } } if(mBluetoothHeadset!=null){// removeHeadsetMacEqual(); List deviceList=mBluetoothHeadset.getConnectedDevices(); if(deviceList!=null&&deviceList.size()>0){ devices.addAll(deviceList); } } mBTConnectListener.onConnectedDevice(devices); isBackConDev=false; } }// /**// * 移除A2dp mac相等设备// */// private void removeA2dpMacEqual(){// if(mBluetoothA2dp==null){// return;// }// List deviceList=mBluetoothA2dp.getConnectedDevices();// if(deviceList==null||deviceList.size()<1){// return;// }// for(int i=0;i deviceList=mBluetoothHeadset.getConnectedDevices();// if(deviceList==null||deviceList.size()<1){// return;// }// for(int i=0;i 最后给出demo的下载地址
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