项目涉及蓝牙通信，所以就简单的学了学，下面是自己参考了一些资料后的总结，希望对大家有帮助。

以下是开发中的几个关键步骤：

1、首先开启蓝牙

2、搜索可用设备

3、创建蓝牙socket，获取输入输出流

4、读取和写入数据

5、断开连接关闭蓝牙

下面是一个蓝牙聊天demo

效果图：

在使用蓝牙是 BluetoothAdapter 对蓝牙开启，关闭，获取设备列表，发现设备，搜索等核心功能

下面对它进行封装：

package com.xiaoyu.bluetooth; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.Set; import android.app.Activity; import android.app.AlertDialog; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.content.BroadcastReceiver; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.IntentFilter; public class BTManage { // private List<BTItem> mListDeviceBT=null; private BluetoothAdapter mBtAdapter =null; private static BTManage mag=null; private BTManage(){ // mListDeviceBT=new ArrayList<BTItem>(); mBtAdapter=BluetoothAdapter.getDefaultAdapter(); } public static BTManage getInstance(){ if(null==mag) mag=new BTManage(); return mag; } private StatusBlueTooth blueStatusLis=null; public void setBlueListner(StatusBlueTooth blueLis){ this.blueStatusLis=blueLis; } public BluetoothAdapter getBtAdapter(){ return this.mBtAdapter; } public void openBluetooth(Activity activity){ if(null==mBtAdapter){ ////Device does not support Bluetooth AlertDialog.Builder dialog = new AlertDialog.Builder(activity); dialog.setTitle("No bluetooth devices"); dialog.setMessage("Your equipment does not support bluetooth, please change device"); dialog.setNegativeButton("cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }); dialog.show(); return; } // If BT is not on, request that it be enabled. if (!mBtAdapter.isEnabled()) { /*Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); activity.startActivityForResult(enableIntent, 3);*/ mBtAdapter.enable(); } } public void closeBluetooth(){ if(mBtAdapter.isEnabled()) mBtAdapter.disable(); } public boolean isDiscovering(){ return mBtAdapter.isDiscovering(); } public void scanDevice(){ // mListDeviceBT.clear(); if(!mBtAdapter.isDiscovering()) mBtAdapter.startDiscovery(); } public void cancelScanDevice(){ if(mBtAdapter.isDiscovering()) mBtAdapter.cancelDiscovery(); } public void registerBluetoothReceiver(Context mcontext){ // Register for broadcasts when start bluetooth search IntentFilter startSearchFilter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_STARTED); mcontext.registerReceiver(mBlueToothReceiver, startSearchFilter); // Register for broadcasts when a device is discovered IntentFilter discoveryFilter = new IntentFilter(BluetoothDevice.ACTION_FOUND); mcontext.registerReceiver(mBlueToothReceiver, discoveryFilter); // Register for broadcasts when discovery has finished IntentFilter foundFilter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED); mcontext.registerReceiver(mBlueToothReceiver, foundFilter); } public void unregisterBluetooth(Context mcontext){ cancelScanDevice(); mcontext.unregisterReceiver(mBlueToothReceiver); } public List<BTItem> getPairBluetoothItem(){ List<BTItem> mBTitemList=null; // Get a set of currently paired devices Set<BluetoothDevice> pairedDevices = mBtAdapter.getBondedDevices(); Iterator<BluetoothDevice> it=pairedDevices.iterator(); while(it.hasNext()){ if(mBTitemList==null) mBTitemList=new ArrayList<BTItem>(); BluetoothDevice device=it.next(); BTItem item=new BTItem(); item.setBuletoothName(device.getName()); item.setBluetoothAddress(device.getAddress()); item.setBluetoothType(BluetoothDevice.BOND_BONDED); mBTitemList.add(item); } return mBTitemList; } private final BroadcastReceiver mBlueToothReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if(BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(action)) { if(blueStatusLis!=null) blueStatusLis.BTDeviceSearchStatus(StatusBlueTooth.SEARCH_START); } else if (BluetoothDevice.ACTION_FOUND.equals(action)){ // When discovery finds a device // Get the BluetoothDevice object from the Intent BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); // If it's already paired, skip it, because it's been listed already if (device.getBondState() != BluetoothDevice.BOND_BONDED) { BTItem item=new BTItem(); item.setBuletoothName(device.getName()); item.setBluetoothAddress(device.getAddress()); item.setBluetoothType(device.getBondState()); if(blueStatusLis!=null) blueStatusLis.BTSearchFindItem(item); // mListDeviceBT.add(item); } } else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)){ // When discovery is finished, change the Activity title if(blueStatusLis!=null) blueStatusLis.BTDeviceSearchStatus(StatusBlueTooth.SEARCH_END); } } }; }

蓝牙开发和socket一致，分为server，client

server功能类封装：

package com.xiaoyu.bluetooth; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.EOFException; import java.io.IOException; import java.util.UUID; import com.xiaoyu.utils.ThreadPool; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothServerSocket; import android.bluetooth.BluetoothSocket; import android.os.Handler; import android.os.Message; public class BTServer { /* 一些常量，代表服务器的名称 */ public static final String PROTOCOL_SCHEME_L2CAP = "btl2cap"; public static final String PROTOCOL_SCHEME_RFCOMM = "btspp"; public static final String PROTOCOL_SCHEME_BT_OBEX = "btgoep"; public static final String PROTOCOL_SCHEME_TCP_OBEX = "tcpobex"; private BluetoothServerSocket btServerSocket = null; private BluetoothSocket btsocket = null; private BluetoothAdapter mBtAdapter =null; private BufferedInputStream bis=null; private BufferedOutputStream bos=null; private Handler detectedHandler=null; public BTServer(BluetoothAdapter mBtAdapter,Handler detectedHandler){ this.mBtAdapter=mBtAdapter; this.detectedHandler=detectedHandler; } public void startBTServer() { ThreadPool.getInstance().excuteTask(new Runnable() { public void run() { try { btServerSocket = mBtAdapter.listenUsingRfcommWithServiceRecord(PROTOCOL_SCHEME_RFCOMM, UUID.fromString("00001101-0000-1000-8000-00805F9B34FB")); Message msg = new Message(); msg.obj = "请稍候，正在等待客户端的连接..."; msg.what = 0; detectedHandler.sendMessage(msg); btsocket=btServerSocket.accept(); Message msg2 = new Message(); String info = "客户端已经连接上！可以发送信息。"; msg2.obj = info; msg.what = 0; detectedHandler.sendMessage(msg2); receiverMessageTask(); } catch(EOFException e){ Message msg = new Message(); msg.obj = "client has close!"; msg.what = 1; detectedHandler.sendMessage(msg); }catch (IOException e) { e.printStackTrace(); Message msg = new Message(); msg.obj = "receiver message error! please make client try again connect!"; msg.what = 1; detectedHandler.sendMessage(msg); } } }); } private void receiverMessageTask(){ ThreadPool.getInstance().excuteTask(new Runnable() { public void run() { byte[] buffer = new byte[2048]; int totalRead; /*InputStream input = null; OutputStream output=null;*/ try { bis=new BufferedInputStream(btsocket.getInputStream()); bos=new BufferedOutputStream(btsocket.getOutputStream()); } catch (IOException e) { e.printStackTrace(); } try { // ByteArrayOutputStream arrayOutput=null; while((totalRead = bis.read(buffer)) > 0 ){ // arrayOutput=new ByteArrayOutputStream(); String txt = new String(buffer, 0, totalRead, "UTF-8"); Message msg = new Message(); msg.obj = txt; msg.what = 1; detectedHandler.sendMessage(msg); } } catch (IOException e) { e.printStackTrace(); } } }); } public boolean sendmsg(String msg){ boolean result=false; if(null==btsocket||bos==null) return false; try { bos.write(msg.getBytes()); bos.flush(); result=true; } catch (IOException e) { e.printStackTrace(); } return result; } public void closeBTServer(){ try{ if(bis!=null) bis.close(); if(bos!=null) bos.close(); if(btServerSocket!=null) btServerSocket.close(); if(btsocket!=null) btsocket.close(); }catch(IOException e){ e.printStackTrace(); } } }

client功能封装：

package com.xiaoyu.bluetooth; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.EOFException; import java.io.IOException; import java.util.UUID; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.bluetooth.BluetoothSocket; import android.os.Handler; import android.os.Message; import android.util.Log; import com.xiaoyu.utils.ThreadPool; public class BTClient { final String Tag=getClass().getSimpleName(); private BluetoothSocket btsocket = null; private BluetoothDevice btdevice = null; private BufferedInputStream bis=null; private BufferedOutputStream bos=null; private BluetoothAdapter mBtAdapter =null; private Handler detectedHandler=null; public BTClient(BluetoothAdapter mBtAdapter,Handler detectedHandler){ this.mBtAdapter=mBtAdapter; this.detectedHandler=detectedHandler; } public void connectBTServer(String address){ //check address is correct if(BluetoothAdapter.checkBluetoothAddress(address)){ btdevice = mBtAdapter.getRemoteDevice(address); ThreadPool.getInstance().excuteTask(new Runnable() { public void run() { try { btsocket = btdevice.createRfcommSocketToServiceRecord(UUID.fromString("00001101-0000-1000-8000-00805F9B34FB")); Message msg2 = new Message(); msg2.obj = "请稍候，正在连接服务器:"+BluetoothMsg.BlueToothAddress; msg2.what = 0; detectedHandler.sendMessage(msg2); btsocket.connect(); Message msg = new Message(); msg.obj = "已经连接上服务端！可以发送信息。"; msg.what = 0; detectedHandler.sendMessage(msg); receiverMessageTask(); } catch (IOException e) { e.printStackTrace(); Log.e(Tag, e.getMessage()); Message msg = new Message(); msg.obj = "连接服务端异常！请检查服务器是否正常，断开连接重新试一试。"; msg.what = 0; detectedHandler.sendMessage(msg); } } }); } } private void receiverMessageTask(){ ThreadPool.getInstance().excuteTask(new Runnable() { public void run() { byte[] buffer = new byte[2048]; int totalRead; /*InputStream input = null; OutputStream output=null;*/ try { bis=new BufferedInputStream(btsocket.getInputStream()); bos=new BufferedOutputStream(btsocket.getOutputStream()); } catch (IOException e) { e.printStackTrace(); } try { // ByteArrayOutputStream arrayOutput=null; while((totalRead = bis.read(buffer)) > 0 ){ // arrayOutput=new ByteArrayOutputStream(); String txt = new String(buffer, 0, totalRead, "UTF-8"); Message msg = new Message(); msg.obj = "Receiver: "+txt; msg.what = 1; detectedHandler.sendMessage(msg); } } catch(EOFException e){ Message msg = new Message(); msg.obj = "server has close!"; msg.what = 1; detectedHandler.sendMessage(msg); }catch (IOException e) { e.printStackTrace(); Message msg = new Message(); msg.obj = "receiver message error! make sure server is ok,and try again connect!"; msg.what = 1; detectedHandler.sendMessage(msg); } } }); } public boolean sendmsg(String msg){ boolean result=false; if(null==btsocket||bos==null) return false; try { bos.write(msg.getBytes()); bos.flush(); result=true; } catch (IOException e) { e.printStackTrace(); } return result; } public void closeBTClient(){ try{ if(bis!=null) bis.close(); if(bos!=null) bos.close(); if(btsocket!=null) btsocket.close(); }catch(IOException e){ e.printStackTrace(); } } }

聊天界面，使用上面分装好的类，处理信息

package com.xiaoyu.communication; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.text.TextUtils; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.view.inputmethod.InputMethodManager; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import android.widget.RadioGroup; import android.widget.RadioGroup.OnCheckedChangeListener; import android.widget.Toast; import com.xiaoyu.bluetooth.BTClient; import com.xiaoyu.bluetooth.BTManage; import com.xiaoyu.bluetooth.BTServer; import com.xiaoyu.bluetooth.BluetoothMsg; public class BTChatActivity extends Activity { private ListView mListView; private Button sendButton; private Button disconnectButton; private EditText editMsgView; private ArrayAdapter<String> mAdapter; private List<String> msgList=new ArrayList<String>(); private BTClient client; private BTServer server; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.bt_chat); initView(); } private Handler detectedHandler = new Handler(){ public void handleMessage(android.os.Message msg) { msgList.add(msg.obj.toString()); mAdapter.notifyDataSetChanged(); mListView.setSelection(msgList.size() - 1); }; }; private void initView() { mAdapter=new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, msgList); mListView = (ListView) findViewById(R.id.list); mListView.setAdapter(mAdapter); mListView.setFastScrollEnabled(true); editMsgView= (EditText)findViewById(R.id.MessageText); editMsgView.clearFocus(); RadioGroup group = (RadioGroup)this.findViewById(R.id.radioGroup); group.setOnCheckedChangeListener(new OnCheckedChangeListener() { // @Override // public void onCheckedChanged(RadioGroup arg0, int arg1) { // int radioId = arg0.getCheckedRadioButtonId(); // // } @Override public void onCheckedChanged(RadioGroup group, int checkedId) { switch(checkedId){ case R.id.radioNone: BluetoothMsg.serviceOrCilent = BluetoothMsg.ServerOrCilent.NONE; if(null!=client){ client.closeBTClient(); client=null; } if(null!=server){ server.closeBTServer(); server=null; } break; case R.id.radioClient: BluetoothMsg.serviceOrCilent = BluetoothMsg.ServerOrCilent.CILENT; Intent it=new Intent(getApplicationContext(),BTDeviceActivity.class); startActivityForResult(it, 100); break; case R.id.radioServer: BluetoothMsg.serviceOrCilent = BluetoothMsg.ServerOrCilent.SERVICE; initConnecter(); break; } } }); sendButton= (Button)findViewById(R.id.btn_msg_send); sendButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { String msgText =editMsgView.getText().toString(); if (msgText.length()>0) { if (BluetoothMsg.serviceOrCilent == BluetoothMsg.ServerOrCilent.CILENT){ if(null==client) return; if(client.sendmsg(msgText)){ Message msg = new Message(); msg.obj = "send: "+msgText; msg.what = 1; detectedHandler.sendMessage(msg); }else{ Message msg = new Message(); msg.obj = "send fail!! "; msg.what = 1; detectedHandler.sendMessage(msg); } } else if (BluetoothMsg.serviceOrCilent == BluetoothMsg.ServerOrCilent.SERVICE) { if(null==server) return; if(server.sendmsg(msgText)){ Message msg = new Message(); msg.obj = "send: "+msgText; msg.what = 1; detectedHandler.sendMessage(msg); }else{ Message msg = new Message(); msg.obj = "send fail!! "; msg.what = 1; detectedHandler.sendMessage(msg); } } editMsgView.setText(""); // editMsgView.clearFocus(); // //close InputMethodManager // InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE); // imm.hideSoftInputFromWindow(editMsgView.getWindowToken(), 0); }else{ Toast.makeText(getApplicationContext(), "发送内容不能为空！", Toast.LENGTH_SHORT).show(); } } }); disconnectButton= (Button)findViewById(R.id.btn_disconnect); disconnectButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { if (BluetoothMsg.serviceOrCilent == BluetoothMsg.ServerOrCilent.CILENT){ if(null==client) return; client.closeBTClient(); } else if (BluetoothMsg.serviceOrCilent == BluetoothMsg.ServerOrCilent.SERVICE) { if(null==server) return; server.closeBTServer(); } BluetoothMsg.isOpen = false; BluetoothMsg.serviceOrCilent=BluetoothMsg.ServerOrCilent.NONE; Toast.makeText(getApplicationContext(), "已断开连接！", Toast.LENGTH_SHORT).show(); } }); } @Override protected void onResume() { super.onResume(); if (BluetoothMsg.isOpen) { Toast.makeText(getApplicationContext(), "连接已经打开，可以通信。如果要再建立连接，请先断开！", Toast.LENGTH_SHORT).show(); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if(requestCode==100){ //从设备列表返回 initConnecter(); } } private void initConnecter(){ if (BluetoothMsg.serviceOrCilent == BluetoothMsg.ServerOrCilent.CILENT) { String address = BluetoothMsg.BlueToothAddress; if (!TextUtils.isEmpty(address)) { if(null==client) client=new BTClient(BTManage.getInstance().getBtAdapter(), detectedHandler); client.connectBTServer(address); BluetoothMsg.isOpen = true; } else { Toast.makeText(getApplicationContext(), "address is empty please choose server address !", Toast.LENGTH_SHORT).show(); } } else if (BluetoothMsg.serviceOrCilent == BluetoothMsg.ServerOrCilent.SERVICE) { if(null==server) server=new BTServer(BTManage.getInstance().getBtAdapter(), detectedHandler); server.startBTServer(); BluetoothMsg.isOpen = true; } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }

client搜索设备列表，连接选择server界面：

package com.xiaoyu.communication; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.ListView; import com.xiaoyu.bluetooth.BTItem; import com.xiaoyu.bluetooth.BTManage; import com.xiaoyu.bluetooth.BluetoothMsg; import com.xiaoyu.bluetooth.StatusBlueTooth; public class BTDeviceActivity extends Activity implements OnItemClickListener ,View.OnClickListener ,StatusBlueTooth{ // private List<BTItem> mListDeviceBT=new ArrayList<BTItem>(); private ListView deviceListview; private Button btserch; private BTDeviceAdapter adapter; private boolean hasregister=false; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.finddevice); setView(); BTManage.getInstance().setBlueListner(this); } private void setView(){ deviceListview=(ListView)findViewById(R.id.devicelist); deviceListview.setOnItemClickListener(this); adapter=new BTDeviceAdapter(getApplicationContext()); deviceListview.setAdapter(adapter); deviceListview.setOnItemClickListener(this); btserch=(Button)findViewById(R.id.start_seach); btserch.setOnClickListener(this); } @Override protected void onStart() { super.onStart(); //注册蓝牙接收广播 if(!hasregister){ hasregister=true; BTManage.getInstance().registerBluetoothReceiver(getApplicationContext()); } } @Override protected void onResume() { // TODO Auto-generated method stub super.onResume(); } @Override protected void onPause() { // TODO Auto-generated method stub super.onPause(); } @Override protected void onStop() { super.onStop(); if(hasregister){ hasregister=false; BTManage.getInstance().unregisterBluetooth(getApplicationContext()); } } @Override protected void onDestroy() { super.onDestroy(); } @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { final BTItem item=(BTItem)adapter.getItem(position); AlertDialog.Builder dialog = new AlertDialog.Builder(this);// 定义一个弹出框对象 dialog.setTitle("Confirmed connecting device"); dialog.setMessage(item.getBuletoothName()); dialog.setPositiveButton("connect", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // btserch.setText("repeat search"); BTManage.getInstance().cancelScanDevice(); BluetoothMsg.BlueToothAddress=item.getBluetoothAddress(); if(BluetoothMsg.lastblueToothAddress!=BluetoothMsg.BlueToothAddress){ BluetoothMsg.lastblueToothAddress=BluetoothMsg.BlueToothAddress; } setResult(100); finish(); } }); dialog.setNegativeButton("cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { BluetoothMsg.BlueToothAddress = null; } }); dialog.show(); } @Override public void onClick(View v) { BTManage.getInstance().openBluetooth(this); if(BTManage.getInstance().isDiscovering()){ BTManage.getInstance().cancelScanDevice(); btserch.setText("start search"); }else{ BTManage.getInstance().scanDevice(); btserch.setText("stop search"); } } @Override public void BTDeviceSearchStatus(int resultCode) { switch(resultCode){ case StatusBlueTooth.SEARCH_START: adapter.clearData(); adapter.addDataModel(BTManage.getInstance().getPairBluetoothItem()); break; case StatusBlueTooth.SEARCH_END: break; } } @Override public void BTSearchFindItem(BTItem item) { adapter.addDataModel(item); } @Override public void BTConnectStatus(int result) { } }

搜索列表adapter:

package com.xiaoyu.communication; import java.util.ArrayList; import java.util.List; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.TextView; import com.xiaoyu.bluetooth.BTItem; public class BTDeviceAdapter extends BaseAdapter{ private List<BTItem> mListItem=new ArrayList<BTItem>();; private Context mcontext=null; private LayoutInflater mInflater=null; public BTDeviceAdapter(Context context){ this.mcontext=context; // this.mListItem=mListItem; this.mInflater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } void clearData(){ mListItem.clear(); } void addDataModel(List<BTItem> itemList){ if(itemList==null || itemList.size()==0) return; mListItem.addAll(itemList); notifyDataSetChanged(); } void addDataModel(BTItem item){ mListItem.add(item); notifyDataSetChanged(); } @Override public int getCount() { return mListItem.size(); } @Override public Object getItem(int position) { return mListItem.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder=null; if(convertView==null){ holder=new ViewHolder(); convertView = mInflater.inflate(R.layout.device_item_row, null); holder.tv=(TextView)convertView.findViewById(R.id.itemText); convertView.setTag(holder); }else{ holder=(ViewHolder)convertView.getTag(); } holder.tv.setText(mListItem.get(position).getBuletoothName()); return convertView; } class ViewHolder{ TextView tv; } }

列表model:

package com.xiaoyu.bluetooth; public class BTItem { private String buletoothName=null; private String bluetoothAddress=null; private int bluetoothType=-1; public String getBuletoothName() { return buletoothName; } public void setBuletoothName(String buletoothName) { this.buletoothName = buletoothName; } public String getBluetoothAddress() { return bluetoothAddress; } public void setBluetoothAddress(String bluetoothAddress) { this.bluetoothAddress = bluetoothAddress; } public int getBluetoothType() { return bluetoothType; } public void setBluetoothType(int bluetoothType) { this.bluetoothType = bluetoothType; } }

使用到的辅助类：

package com.xiaoyu.bluetooth; public class BluetoothMsg { public enum ServerOrCilent{ NONE, SERVICE, CILENT }; //蓝牙连接方式 public static ServerOrCilent serviceOrCilent = ServerOrCilent.NONE; //连接蓝牙地址 public static String BlueToothAddress = null,lastblueToothAddress=null; //通信线程是否开启 public static boolean isOpen = false; } package com.xiaoyu.bluetooth; public interface StatusBlueTooth { final static int SEARCH_START=110; final static int SEARCH_END=112; final static int serverCreateSuccess=211; final static int serverCreateFail=212; final static int clientCreateSuccess=221; final static int clientCreateFail=222; final static int connectLose=231; void BTDeviceSearchStatus(int resultCode); void BTSearchFindItem(BTItem item); void BTConnectStatus(int result); } package com.xiaoyu.utils; import java.util.concurrent.LinkedBlockingQueue; import java.util.concurrent.ThreadFactory; import java.util.concurrent.ThreadPoolExecutor; import java.util.concurrent.TimeUnit; import java.util.concurrent.atomic.AtomicBoolean; import java.util.concurrent.atomic.AtomicInteger; public class ThreadPool { private AtomicBoolean mStopped = new AtomicBoolean(Boolean.FALSE); private ThreadPoolExecutor mQueue; private final int coreSize=2; private final int maxSize=10; private final int timeOut=2; private static ThreadPool pool=null; private ThreadPool() { mQueue = new ThreadPoolExecutor(coreSize, maxSize, timeOut, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>(), sThreadFactory); // mQueue.allowCoreThreadTimeOut(true); } public static ThreadPool getInstance(){ if(null==pool) pool=new ThreadPool(); return pool; } public void excuteTask(Runnable run) { mQueue.execute(run); } public void closeThreadPool() { if (!mStopped.get()) { mQueue.shutdownNow(); mStopped.set(Boolean.TRUE); } } private static final ThreadFactory sThreadFactory = new ThreadFactory() { private final AtomicInteger mCount = new AtomicInteger(1); @Override public Thread newThread(Runnable r) { return new Thread(r, "ThreadPool #" + mCount.getAndIncrement()); } }; }

最后别忘了加入权限

<uses-permission android:name="android.permission.BLUETOOTH"/>

<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />

<uses-permission android:name="android.permission.READ_CONTACTS"/>

在编程中遇到的问题:

Exception: Unable to start Service Discovery

java.io.IOException: Unable to start Service Discovery错误

1、必须保证客户端，服务器端中的UUID统一,客户端格式为：UUID格式一般是"xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"

例如：UUID.fromString("81403000-13df-b000-7cf4-350b4a2110ee");

2、必须进行配对处理后方可能够连接

扩展：蓝牙后台配对实现（网上看到的整理如下）

static public boolean createBond(Class btClass, BluetoothDevice btDevice) throws Exception { Method createBondMethod = btClass.getMethod("createBond"); Log.i("life", "createBondMethod = " + createBondMethod.getName()); Boolean returnValue = (Boolean) createBondMethod.invoke(btDevice); return returnValue.booleanValue(); } static public boolean setPin(Class btClass, BluetoothDevice btDevice, String str) throws Exception { Boolean returnValue = null; try { Method removeBondMethod = btClass.getDeclaredMethod("setPin", new Class[] { byte[].class }); returnValue = (Boolean) removeBondMethod.invoke(btDevice, new Object[] { str.getBytes() }); Log.i("life", "returnValue = " + returnValue); } catch (SecurityException e) { // throw new RuntimeException(e.getMessage()); e.printStackTrace(); } catch (IllegalArgumentException e) { // throw new RuntimeException(e.getMessage()); e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return returnValue; } // 取消用户输入 static public boolean cancelPairingUserInput(Class btClass, BluetoothDevice device) throws Exception { Method createBondMethod = btClass.getMethod("cancelPairingUserInput"); // cancelBondProcess() Boolean returnValue = (Boolean) createBondMethod.invoke(device); Log.i("life", "cancelPairingUserInputreturnValue = " + returnValue); return returnValue.booleanValue(); }

然后监听蓝牙配对的广播 匹配“android.bluetooth.device.action.PAIRING_REQUEST”这个action

然后调用上面的setPin(mDevice.getClass(), mDevice, "1234"); // 手机和蓝牙采集器配对

createBond(mDevice.getClass(), mDevice);

cancelPairingUserInput(mDevice.getClass(), mDevice);

mDevice是你要去连接的那个蓝牙的对象，1234为配对的pin码

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持查字典教程网。