android蓝牙配对源码分析,Android蓝牙学习——搜索、配对、传文件（附源码）

导语

蓝牙作为一种成熟、低功耗无线通信技术的先锋，在可穿戴设备领域中扮演着越来越重要的作用。目前流行的蓝牙成功案例在运动手环、行车记录仪、终端解锁、智能家居等领域。接下来，一起动手敲代码吧~

源码下载：http://download..net/download/_aiyang/9973522

添加权限

BluetoothAdapter

获取实例：BluetoothAdaptermBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();if (mBluetoothAdapter == null) {

Toast.makeText(this, "设备不支持蓝牙", Toast.LENGTH_SHORT).show();

return;

}

常用方法：

isEnabled()判断系统蓝牙是否打开disable()无弹窗提示关闭系统蓝牙 enable()无弹窗提示打开系统蓝牙(此操作有点不友好！) startDiscovery()开始搜索设备 —–适合经典蓝牙和低功耗蓝牙两种cancelDiscovery()取消搜索设备startLeScan()开始搜索设备 —–适合扫描低功耗蓝牙，但是在api21以上被标记废弃使用stopLeScan()停止搜索设备startScan()开始搜索设备 —–api21以上扫描低功耗蓝牙，通过bluetoothAdapter.getBluetoothLeScanner()方法获取stopScan()停止搜索设备stopScan()停止搜索设备

注册广播监听

private IntentFilter makeFilters() {

IntentFilter intentFilter = new IntentFilter();

intentFilter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);

intentFilter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);

intentFilter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);

intentFilter.addAction("android.bluetooth.BluetoothAdapter.STATE_OFF");

intentFilter.addAction("android.bluetooth.BluetoothAdapter.STATE_ON");

intentFilter.addAction(BluetoothDevice.ACTION_FOUND);

intentFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);

return intentFilter;

}BTBroadcastReceiver receiver = new BTBroadcastReceiver();

registerReceiver(receiver, makeFilters());

receiver.setBRInteractionListener(this);然后在自定义广播类中进行拦截Action操作，再使用自定义接口与Activity进行交互数据信息显示。(可在源码中查看参考)

发送文本

/*** 蓝牙UUID*/public staticUUID SPP_UUID= UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");

BluetoothSocket bluetoothSocket =BluetoothDevice.createRfcommSocketToServiceRecord(Comment.SPP_UUID);

OutputStream outputStream =bluetoothSocket.getOutputStream();

outputStream.write(txtString.getBytes("utf-8"));

outputStream.flush();

相关地址下载：

GitHub：https://github.com/aiyangtianci/BluetoothAPP

码云：蓝牙demogiteehttps://gitee.com/AiYangDian/bluetoothdemo