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开源地址:FastBle

FastBle蓝牙快速开发框架的使用

权限申请
build.gradle配置
代码嵌入
- myBleDevice
- MainActivity

权限申请

在文件【AndroidManifest.xml】中添加权限:蓝牙权限和位置权限

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-feature android:name="android.hardware.bluetooth_le" android:required="true"/>

build.gradle配置

在文件【build.gradle】中引入第三方框架：FastBle

dependencies {api 'com.clj.fastble:FastBleLib:2.2.4'
}

代码嵌入

myBleDevice

创建蓝牙设备类 myBleDevice.java

import android.app.Activity;
import android.bluetooth.BluetoothGatt;
import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.widget.Toast;import com.Interface.myBleCommInterface;
import com.Utils.myUtils;
import com.clj.fastble.BleManager;
import com.clj.fastble.callback.BleMtuChangedCallback;
import com.clj.fastble.callback.BleNotifyCallback;
import com.clj.fastble.callback.BleScanAndConnectCallback;
import com.clj.fastble.callback.BleWriteCallback;
import com.clj.fastble.data.BleDevice;
import com.clj.fastble.exception.BleException;
import com.clj.fastble.scan.BleScanRuleConfig;
import com.others.MainApp;import java.util.ArrayList;
import java.util.Arrays;import static com.others.MainApp.NOTIFY_UUID;
import static com.others.MainApp.SERVICE_UUID;
import static java.lang.Thread.sleep;public class myBleDevice extends Activity {private BleDevice bleDeviceTemp = null; //蓝牙设备private Context context = null;private String BleNameConnected = null;private Handler handlerDefineMessage = null;private myBleCommInterface mybleCommInterface = null; //接口private myUtils myutils;private Handler mHandler = null;private int RxdOutTimer = 0;private ArrayList<byte[]> rd = new ArrayList<byte[]>();//ArrayList<byte[]> 转 byte[]private static byte[] byteMerger(ArrayList<byte[]> bytes) {//需要处理的是一个ArrayList<byte[]> bytesint lengthByte = 0;for(byte[] by : bytes){lengthByte +=by.length;}byte[] allbyte = new byte[lengthByte];int countLength=0;for(byte[] by : bytes){System.arraycopy(by,0,allbyte,countLength,by.length);countLength+=by.length;}return allbyte;}/************************************************************************************************ 构造函数* @param context* @param mainHandler* @param bleName*/public myBleDevice(Context context, Handler mainHandler, final myBleCommInterface mybleCommInterface, String bleName) {this.context = context;BleNameConnected = bleName;handlerDefineMessage = mainHandler;this.mybleCommInterface = mybleCommInterface;myutils = new myUtils();mHandler = new Handler();Runnable r = new Runnable() {@Overridepublic void run() {//由于BLE设备的20字节的首发限制，此处代码主要完成的任务是，当接受的字节流大于20字节时，//从机BLE设备可能会进行分包发送。比如modbus的03读取的寄存器数量过多，//导致响应的字节流超过了20字节，则从机设备就会进行分包发送，每包不超过20字节，//而接收设备则需要进行收包并进行拼接。此处代买就是实现此功能。if(RxdOutTimer++ > 1){ //RxdOutTimer就是接收包之间的超时计数if(!rd.isEmpty()){byte[] rxdBytes = byteMerger(rd);//Log.d("myDebug", Arrays.toString(rxdBytes));//myutils.printHexString(rxdBytes);//接受到通知消息 这里需要自己创建个回调接口，或者自己定义其他的数据处理方式。//把接收到的数据发送处理进行解析处理。mybleCommInterface.UpdateBleReceiveData(rxdBytes);rd.clear();}RxdOutTimer = 0;}mHandler.postDelayed(this, 100);}};mHandler.postDelayed(r, 100);//延时100毫秒}/************************************************************************************************ 获取Ble的设备* @return*/public BleDevice getBleDevice() {return bleDeviceTemp;}/************************************************************************************************ 扫描和连接蓝牙*/public void scanAndConnect() {Log.e("myDebug", "BLE开始连接");BleManager.getInstance().scanAndConnect(new BleScanAndConnectCallback() {@Overridepublic void onScanStarted(boolean success) {// 开始扫描（主线程）Log.e("myDebug", "BLE开始扫描");}@Overridepublic void onScanFinished(BleDevice scanResult) {// 扫描结束，结果即为扫描到的第一个符合扫描规则的BLE设备，如果为空表示未搜索到（主线程）Log.e("myDebug", "BLE扫描结束");if (scanResult != null) {Log.e("myDebug", "BLE扫描到了");} else {Log.e("myDebug", "BLE没扫描到");Toast.makeText(context, "BLE没扫描到", Toast.LENGTH_SHORT).show();}}@Overridepublic void onStartConnect() {Log.e("myDebug", "BLE开始连接");// 开始连接（主线程）}@Overridepublic void onConnectFail(BleException exception) {// 连接失败（主线程）Toast.makeText(context, "BLE连接失败", Toast.LENGTH_SHORT).show();Log.e("myDebug", "BLE连接失败");}@Overridepublic void onConnectSuccess(BleDevice bleDevice, BluetoothGatt gatt, int status) {// 连接成功，BleDevice即为所连接的BLE设备（主线程）Toast.makeText(context, "BLE连接成功", Toast.LENGTH_SHORT).show();Log.e("myDebug", "BLE连接成功");Log.e("myDebug", BleManager.getInstance().getAllConnectedDevice().size() + "");sendMessage(101);bleDeviceTemp = bleDevice;//设置MTUBleManager.getInstance().setMtu(bleDeviceTemp, 512, new BleMtuChangedCallback() {@Overridepublic void onSetMTUFailure(BleException exception) {// 设置MTU失败Log.e("myDebug", "BLE设置MTU失败");}@Overridepublic void onMtuChanged(int mtu) {// 设置MTU成功，并获得当前设备传输支持的MTU值Log.e("myDebug", "BLE设置MTU成功，并获得当前设备传输支持的MTU值  " + mtu);//启动蓝牙接收消息startNotify(bleDeviceTemp);}});}@Overridepublic void onDisConnected(boolean isActiveDisConnected, BleDevice device, BluetoothGatt gatt, int status) {// 连接断开，isActiveDisConnected是主动断开还是被动断开（主线程）Toast.makeText(context, "BLE连接断开", Toast.LENGTH_SHORT).show();Log.e("myDebug", "BLE连接断开");Log.e("myDebug", isActiveDisConnected + "");sendMessage(102);}});}/************************************************************************************************  蓝牙连接*/public void BleConnectAction() {BleScanRuleConfig scanRuleConfig = new BleScanRuleConfig.Builder()
//                        .setServiceUuids(serviceUuids)      // 只扫描指定的服务的设备，可选.setDeviceName(true, BleNameConnected)   // 只扫描指定广播名的设备，可选
//                .setDeviceMac(mac)                  // 只扫描指定mac的设备，可选
//                .setAutoConnect(isAutoConnect)      // 连接时的autoConnect参数，可选，默认false.setScanTimeOut(10000)              // 扫描超时时间，可选，默认10秒.build();BleManager.getInstance().initScanRule(scanRuleConfig);}/************************************************************************************************ 发送数据函数* @param WriteBytes*/public void SendData(int[] WriteBytes) {int len = WriteBytes.length;byte[] outData = new byte[len];for (int i = 0; i < len; i++) {if ((WriteBytes[i] >= 128) && (WriteBytes[i] <= 255)) {outData[i] = (byte) ((WriteBytes[i] - 256) & 0xFF);} else {outData[i] = (byte) (WriteBytes[i] & 0xFF);}}BleManager.getInstance().write(bleDeviceTemp,SERVICE_UUID,MainApp.WRITE_UUID,outData,new BleWriteCallback() {@Overridepublic void onWriteSuccess(final int current, final int total, final byte[] justWrite) {runOnUiThread(new Runnable() {@Overridepublic void run() {//Toast.makeText(context, "写入成功", Toast.LENGTH_SHORT).show();//Log.d("myDebug", "写入成功");}});}@Overridepublic void onWriteFailure(final BleException exception) {runOnUiThread(new Runnable() {@Overridepublic void run() {Toast.makeText(context, "写入失败", Toast.LENGTH_SHORT).show();Log.e("myDebug", "写入失败");Log.e("myDebug", String.valueOf(exception));}});}});}/************************************************************************************************ 发送数据函数 注意BLE发送的20字节限制，不同设备可能限制的最大发送字节数不一样，建议发送数据* 时自行分包发送，这样可适用于所有BLE设备。* @param outData*/public void SendData(byte[] outData) {BleManager.getInstance().write(bleDeviceTemp,SERVICE_UUID,MainApp.WRITE_UUID,outData,new BleWriteCallback() {@Overridepublic void onWriteSuccess(final int current, final int total, final byte[] justWrite) {runOnUiThread(new Runnable() {@Overridepublic void run() {//Toast.makeText(context, "写入成功", Toast.LENGTH_SHORT).show();//Log.d("myDebug", "写入成功");}});}@Overridepublic void onWriteFailure(final BleException exception) {runOnUiThread(new Runnable() {@Overridepublic void run() {Toast.makeText(context, "写入失败", Toast.LENGTH_SHORT).show();Log.e("myDebug", "写入失败");Log.e("myDebug", String.valueOf(exception));}});}});}/************************************************************************************************ 蓝牙接收数据* @param bleDevice*/private void startNotify(BleDevice bleDevice) {BleManager.getInstance().notify(bleDevice,SERVICE_UUID,NOTIFY_UUID,new BleNotifyCallback() {@Overridepublic void onNotifySuccess() {runOnUiThread(new Runnable() {@Overridepublic void run() {//打开通知成功}});}@Overridepublic void onNotifyFailure(final BleException exception) {runOnUiThread(new Runnable() {@Overridepublic void run() {//打开通知失败}});}/******************************************************************************** 数据接收处理* @param data*/@Overridepublic void onCharacteristicChanged(final byte[] data) {runOnUiThread(new Runnable() {@Overridepublic void run() {rd.add(data); //追加方式接收代码RxdOutTimer = 0;}});}});}
}

MainActivity

在MainActivity中调用

 protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);//setTheme(R.style.AppTheme_Launcher);setContentView(R.layout.activity_main);// 获取本地蓝牙适配器mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();// 如果没有蓝牙适配器，则不支持if (mBluetoothAdapter == null) {Toast.makeText(this, "蓝牙不可用", Toast.LENGTH_LONG).show();finish();return;}BleManager.getInstance().init(getApplication());BleManager.getInstance().enableLog(true).setMaxConnectCount(1).setOperateTimeout(5000);//BleNameConnected 需要连接的蓝牙名称，本程序需求是连接指定蓝牙名称的的设备，其他应用可根据具体需求自行修改代码。mybleDevice = new myBleDevice(MainActivity.this, handlerDefineMessage, this, BleNameConnected);mybleDevice.BleConnectAction();checkPermissions(); //权限处理
}/************************************************************************************************ 检查权限*/private void checkPermissions() {BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();if (!bluetoothAdapter.isEnabled()) {Toast.makeText(this, getString(R.string.please_open_blue), Toast.LENGTH_LONG).show();return;}String[] permissions = {Manifest.permission.ACCESS_FINE_LOCATION,Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.READ_EXTERNAL_STORAGE,Manifest.permission.CAMERA,Manifest.permission.ACCESS_WIFI_STATE,Manifest.permission.CHANGE_WIFI_STATE,Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS,Manifest.permission.WRITE_SETTINGS};List<String> permissionDeniedList = new ArrayList<>();for (String permission : permissions) {int permissionCheck = checkSelfPermission(permission);if (permissionCheck == PackageManager.PERMISSION_GRANTED) {onPermissionGranted(permission);} else {permissionDeniedList.add(permission);}}if (!permissionDeniedList.isEmpty()) {String[] deniedPermissions = permissionDeniedList.toArray(new String[permissionDeniedList.size()]);requestPermissions(deniedPermissions, REQUEST_CODE_PERMISSION_LOCATION);}}