Android简单的蓝牙搜索配对

蓝牙工具类： https://blog.csdn.net/qq_30297763/article/details/93873103

源码和安装包在这： https://download.csdn.net/download/qq_30297763/11261323
（内含apk安装包和源码。功能为：android扫描蓝牙、连接蓝牙、和蓝牙信息交互（收发信息）等）

public class DeviceListActivity extends Activity {
    // 调试用
    private static final String TAG = "DeviceListActivity";
    private static final boolean D = true;

    // 返回时数据标签
    public static String EXTRA_DEVICE_ADDRESS = "设备地址";

    // 成员域
    private BluetoothAdapter mBtAdapter;
    private ArrayAdapter<String> mPairedDevicesArrayAdapter;
    private ArrayAdapter<String> mNewDevicesArrayAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // 创建并显示窗口
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);  //设置窗口显示模式为窗口方式
        setContentView(R.layout.device_list);

        BTUtils.startBth();

        // 设定默认返回值为取消
        setResult(Activity.RESULT_CANCELED);

        // 设定扫描按键响应
        Button scanButton = (Button) findViewById(R.id.button_scan);
        scanButton.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                doDiscovery();
                v.setVisibility(View.GONE);
            }
        });

        // 初使化设备存储数组
        mPairedDevicesArrayAdapter = new ArrayAdapter<String>(this, R.layout.device_name);
        mNewDevicesArrayAdapter = new ArrayAdapter<String>(this, R.layout.device_name);

        // 设置已配队设备列表

        ListView pairedListView = (ListView) findViewById(R.id.paired_devices);
        pairedListView.setAdapter(mPairedDevicesArrayAdapter);
        pairedListView.setOnItemClickListener(mDeviceClickListener);

        // 设置新查找设备列表
        ListView newDevicesListView = (ListView) findViewById(R.id.new_devices);
        newDevicesListView.setAdapter(mNewDevicesArrayAdapter);
        newDevicesListView.setOnItemClickListener(mDeviceClickListener);

        // 注册接收查找到设备action接收器
        //IntentFilter filter = ;
        this.registerReceiver(mReceiver, new IntentFilter(BluetoothDevice.ACTION_FOUND));

        // 注册查找结束action接收器
        //filter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
        this.registerReceiver(mReceiver, new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED));

        this.registerReceiver(mReceiver, new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_STARTED));

        // 得到本地蓝牙句柄
        mBtAdapter = BluetoothAdapter.getDefaultAdapter();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();

        // 关闭服务查找
        if (mBtAdapter != null) {
            mBtAdapter.cancelDiscovery();
        }

        // 注销action接收器
        this.unregisterReceiver(mReceiver);
    }

    public void OnCancel(View v){
        finish();
    }
    /**
     * 开始服务和设备查找
     */
    private void doDiscovery() {
        if (D) Log.d(TAG, "doDiscovery()");

        // 在窗口显示查找中信息
        setProgressBarIndeterminateVisibility(true);
        setTitle("查找设备中...");

        // 显示其它设备（未配对设备）列表
        findViewById(R.id.title_new_devices).setVisibility(View.VISIBLE);

        // 关闭再进行的服务查找
        if (mBtAdapter.isDiscovering()) {
            mBtAdapter.cancelDiscovery();
        }

        mBtAdapter.startDiscovery();
        Log.e(TAG,"startDiscovery()");
    }

    // 选择设备响应函数
    private OnItemClickListener mDeviceClickListener = new OnItemClickListener() {
        public void onItemClick(AdapterView<?> av, View v, int arg2, long arg3) {
            // 准备连接设备，关闭服务查找
            mBtAdapter.cancelDiscovery();

            // 得到mac地址
            final String info = ((TextView) v).getText().toString();
            Log.d("RegisterActivity", "info: " + info + " name:"+info.substring(0,16) +" "+info.substring(info.length() - 17));
            final String address = info.substring(info.length() - 17);
                    // 连接蓝牙设备
            BTUtils.linkBT(address, new BTUtils.btDataCallBack() {
                @Override
                public void doCallBack(boolean btData) {
                    if (btData){
                     // 连接蓝牙设备成功 
                     // 蓝牙设备信息通讯可看工具类（该文章最上方有链接）
                    }
                }
            });
           // finish();
        }
    };

    // 查找到设备和搜索完成action监听器
    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            Log.e(TAG,action);
            // 查找到设备action
            if (BluetoothDevice.ACTION_FOUND.equals(action)) {
                // 得到蓝牙设备
                BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
                // 如果是已配对的则略过，已得到显示，其余的在添加到列表中进行显示
                if (device.getBondState() != BluetoothDevice.BOND_BONDED ) {
                    mNewDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
                }else if (){  //添加到已配对设备列表
                    mPairedDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
                }
                Log.e(TAG,device.getName() + "---" + device.getAddress());
                // 搜索完成action
            } else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
                setProgressBarIndeterminateVisibility(false);
                setTitle("选择要连接的设备");
                if (mNewDevicesArrayAdapter.getCount() == 0) {
                    String noDevices = "没有找到新设备";
                    mNewDevicesArrayAdapter.add(noDevices);
                }
            }
        }
    };
}