package com.demo;import java.io.IOException;import java.lang.reflect.Method;import java.util.ArrayList;import java.util.List;import java.util.UUID;import android.app.Activity;import android.bluetooth.BluetoothAdapter;import android.bluetooth.BluetoothDevice;import android.bluetooth.BluetoothSocket;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.Button;import android.widget.ListView;import android.widget.Toast;import android.widget.ToggleButton; public class BlueToothTestActivity extends Activity { //该UUID表示串口服务 //请参考文章<a href="http://wiley.iteye.com/blog/1179417">http://wiley.iteye.com/blog/1179417</a> static final String SPP_UUID = "00001101-0000-1000-8000-00805F9B34FB"; Button btnSearch, btnDis, btnExit; ToggleButton tbtnSwitch; ListView lvBTDevices; ArrayAdapter<String> adtDevices; List<String> lstDevices = new ArrayList<String>(); BluetoothAdapter btAdapt; public static BluetoothSocket btSocket; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // Button 设置 btnSearch = (Button) this.findViewById(R.id.btnSearch); btnSearch.setOnClickListener(new ClickEvent()); btnExit = (Button) this.findViewById(R.id.btnExit); btnExit.setOnClickListener(new ClickEvent()); btnDis = (Button) this.findViewById(R.id.btnDis); btnDis.setOnClickListener(new ClickEvent()); // ToogleButton设置 tbtnSwitch = (ToggleButton) this.findViewById(R.id.tbtnSwitch); tbtnSwitch.setOnClickListener(new ClickEvent()); // ListView及其数据源 适配器 lvBTDevices = (ListView) this.findViewById(R.id.lvDevices); adtDevices = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, lstDevices); lvBTDevices.setAdapter(adtDevices); lvBTDevices.setOnItemClickListener(new ItemClickEvent()); btAdapt = BluetoothAdapter.getDefaultAdapter();// 初始化本机蓝牙功能 // ======================================================== // modified by wiley /* * if (btAdapt.getState() == BluetoothAdapter.STATE_OFF)// 读取蓝牙状态并显示 * tbtnSwitch.setChecked(false); else if (btAdapt.getState() == * BluetoothAdapter.STATE_ON) tbtnSwitch.setChecked(true); */ boolean check=false; if (btAdapt!=null) { if(!btAdapt.isEnabled()){ check=true; } } tbtnSwitch.setChecked(check); // ============================================================ // 注册Receiver来获取蓝牙设备相关的结果 IntentFilter intent = new IntentFilter(); intent.addAction(BluetoothDevice.ACTION_FOUND);// 用BroadcastReceiver来取得搜索结果 intent.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED); intent.addAction(BluetoothAdapter.ACTION_SCAN_MODE_CHANGED); intent.addAction(BluetoothAdapter.ACTION_STATE_CHANGED); registerReceiver(searchDevices, intent); } private BroadcastReceiver searchDevices = new BroadcastReceiver() { public void onReceive(Context context, Intent intent) { String action = intent.getAction(); Bundle b = intent.getExtras(); Object[] lstName = b.keySet().toArray(); // 显示所有收到的消息及其细节 for (int i = 0; i < lstName.length; i++) { String keyName = lstName[i].toString(); Log.e(keyName, String.valueOf(b.get(keyName))); } BluetoothDevice device = null; // 搜索设备时，取得设备的MAC地址 if (BluetoothDevice.ACTION_FOUND.equals(action)) { device = intent .getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); if (device.getBondState() == BluetoothDevice.BOND_NONE) { String str = "未配对|" + device.getName() + "|" + device.getAddress(); if (lstDevices.indexOf(str) == -1)// 防止重复添加 lstDevices.add(str); // 获取设备名称和mac地址 adtDevices.notifyDataSetChanged(); } }else if(BluetoothDevice.ACTION_BOND_STATE_CHANGED.equals(action)){ device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); switch (device.getBondState()) { case BluetoothDevice.BOND_BONDING: Log.d("BlueToothTestActivity", "正在配对......"); break; case BluetoothDevice.BOND_BONDED: Log.d("BlueToothTestActivity", "完成配对"); connect(device);//连接设备 break; case BluetoothDevice.BOND_NONE: Log.d("BlueToothTestActivity", "取消配对"); default: break; } } } }; @Override protected void onDestroy() { this.unregisterReceiver(searchDevices); super.onDestroy(); android.os.Process.killProcess(android.os.Process.myPid()); } class ItemClickEvent implements AdapterView.OnItemClickListener { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { if(btAdapt.isDiscovering())btAdapt.cancelDiscovery(); String str = lstDevices.get(arg2); String[] values = str.split("\\|"); String address = values[2]; Log.e("address", values[2]); BluetoothDevice btDev = btAdapt.getRemoteDevice(address); try { Boolean returnValue = false; if (btDev.getBondState() == BluetoothDevice.BOND_NONE) { //利用反射方法调用BluetoothDevice.createBond(BluetoothDevice remoteDevice); Method createBondMethod = BluetoothDevice.class .getMethod("createBond"); Log.d("BlueToothTestActivity", "开始配对"); returnValue = (Boolean) createBondMethod.invoke(btDev); }else if(btDev.getBondState() == BluetoothDevice.BOND_BONDED){ connect(btDev); } } catch (Exception e) { e.printStackTrace(); } } } private void connect(BluetoothDevice btDev) { UUID uuid = UUID.fromString(SPP_UUID); try { btSocket = btDev.createRfcommSocketToServiceRecord(uuid); Log.d("BlueToothTestActivity", "开始连接..."); btSocket.connect(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } class ClickEvent implements View.OnClickListener { @Override public void onClick(View v) { if (v == btnSearch)// 搜索蓝牙设备，在BroadcastReceiver显示结果 { if (btAdapt.getState() == BluetoothAdapter.STATE_OFF) {// 如果蓝牙还没开启 Toast.makeText(BlueToothTestActivity.this, "请先打开蓝牙", 1000) .show(); return; } if (btAdapt.isDiscovering()) btAdapt.cancelDiscovery(); lstDevices.clear(); Object[] lstDevice = btAdapt.getBondedDevices().toArray(); for (int i = 0; i < lstDevice.length; i++) { BluetoothDevice device = (BluetoothDevice) lstDevice[i]; String str = "已配对|" + device.getName() + "|" + device.getAddress(); lstDevices.add(str); // 获取设备名称和mac地址 adtDevices.notifyDataSetChanged(); } setTitle("本机蓝牙地址：" + btAdapt.getAddress()); btAdapt.startDiscovery(); } else if (v == tbtnSwitch) {// 本机蓝牙启动/关闭 if (tbtnSwitch.isChecked() == false) btAdapt.enable(); else if (tbtnSwitch.isChecked() == true) btAdapt.disable(); } else if (v == btnDis)// 本机可以被搜索 { Intent discoverableIntent = new Intent( BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE); discoverableIntent.putExtra( BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300); startActivity(discoverableIntent); } else if (v == btnExit) { try { if (btSocket != null) btSocket.close(); } catch (IOException e) { e.printStackTrace(); } BlueToothTestActivity.this.finish(); } } } } ?引自：http://wiley.iteye.com/blog/1179417
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贴个代码藏一下。！！！