一个能够连接多台蓝牙设备的库，它可以作为client端，也可以为server端。支持主机／从机，外围设备连接。
在发送消息时，它内部支持队列控制，避免因蓝牙间隔出现操作失败的情况。
BluetoothLeScannerCompat scannerCompat = BluetoothLeScannerCompat.getScanner();
ScanSettings scanSettings = new ScanSettings.Builder()
.setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY)
.setReportDelay(int reportDelayMillis) //0 or above >0
.setUseHardwareBatchingIfSupported(false)
.build();
//设置过滤扫描
List<ScanFilter> filters = new ArrayList<>();
ScanFilter builder = new ScanFilter.Builder().setDeviceName(deviceName).build();
filters.add(builder);
ScanFilter builder = new ScanFilter.Builder().setDeviceAddress(deviceAddress).build();
filters.add(builder);
ScanFilter builder = new ScanFilter.Builder()
.setServiceUuid(ParcelUuid.fromString(serviceUUID.toString())).build();
filters.add(builder);
scannerCompat.startScan(filters, scanSettings, scanCallback);
扫描回调
private ScanCallback scanCallback = new ScanCallback() {
@Override
public void onScanResult(final int callbackType, final ScanResult result) {
}
@Override
public void onBatchScanResults(final List<ScanResult> results) {
}
@Override
public void onScanFailed(final int errorCode) {
}
};
//创建连接的一个对象，后续将使用该对象来访问操作
private BluetoothLeConnector connector = BluetoothLe.newConnector();
private BluetoothGatt mBluetoothGatt;
//配置连接对象
connector.setConfig(new BluetoothConfig.Builder()
.enableQueueInterval(true)//开启操作时间间隔
.setQueueIntervalTime(BluetoothConfig.AUTO)//单位ms，这里为自动
.build());
//连接蓝牙
connector.connect(true, mBluetoothDevice);
connector.connect(true, mBluetoothDevice, BluetoothLeConnector.TRANSPORT_AUTO);//最后一个参数设置连接通道
//开启indicate通知
connector.enableIndication(true,UUID_SERVICE,UUID_INDICATION);
//开启notify通知
connector.enableNotification(true, UUID_SERVICE, UUID_NOTIFICATION);
//写数据
connector.writeCharacteristic(new byte[]{0x01, 0x02}, UUID_SERVICE, UUID_WRITE);
//自定义写数据
BluetoothGattService service = mBluetoothGatt.getService(UUID_SERVICE);
BluetoothGattCharacteristic characteristic = service.getCharacteristic(UUID_WRITE);
characteristic.setValue(byte[] value);
characteristic.setValue(int value, int formatType, int offset);
characteristic.setValue(int mantissa, int exponent, int formatType, int offset);
characteristic.setValue(String value);
connector.writeCharacteristic(characteristic);
//读数据
connector.readCharacteristic(UUID_SERVICE, UUID_READ);
//断开连接
connector.disconnect();
//关闭gatt
connector.close();
//连接状态监听
private ConnectListener mConnectListener = new ConnectListener() {
@Override
public void connecting() {
}
@Override
public void connected() {
}
@Override
public void disconnected() {
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
}
@Override
public void error(ConnBleException e) {
}
};
connector.addConnectListener(mConnectListener);
更多的回调监听如下:
mBleManager.addConnectListener(...)
mBleManager.addNotificationListener(...)
mBleManager.addIndicationListener(...)
mBleManager.addWriteCharacteristicListener(...)
mBleManager.addReadCharacteristicListener(...)
mBleManager.addRssiListener(...)
移除回调监听（好的程序员要懂避免内存泄漏）:
connector.removeListener(mConnectListener);
private GattServer mGattServer = new GattServer();
mGattServer.startAdvertising(UUID.fromString("0000fff0-0000-1000-8000-00805f9b34fb"));//该uuid可提供给主机client过滤扫描
mGattServer.stopAdvertising();
mGattServer.startServer(context);
mGattServer.closeServer();
List<ServiceProfile> list = new ArrayList<>();
//设置一个写的特征
ServiceProfile profile = new ServiceProfile();
profile.setCharacteristicUuid(UUID.fromString("0000fff3-0000-1000-8000-00805f9b34fb"));
profile.setCharacteristicProperties(BluetoothGattCharacteristic.PROPERTY_WRITE);
profile.setCharacteristicPermission(BluetoothGattCharacteristic.PERMISSION_WRITE);
profile.setDescriptorUuid(GattServer.CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID);
profile.setDescriptorPermission(BluetoothGattDescriptor.PERMISSION_READ);
profile.setDescriptorValue(new byte[]{0});
list.add(profile);
//设置一个读的特征
ServiceProfile profile1 = new ServiceProfile();
profile1.setCharacteristicUuid(UUID.fromString("0000fff2-0000-1000-8000-00805f9b34fb"));
profile1.setCharacteristicProperties(BluetoothGattCharacteristic.PROPERTY_READ);
profile1.setCharacteristicPermission(BluetoothGattCharacteristic.PERMISSION_READ);
profile1.setDescriptorUuid(GattServer.CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID);
profile1.setDescriptorPermission(BluetoothGattDescriptor.PERMISSION_READ);
profile1.setDescriptorValue(new byte[]{1});
list.add(profile1);
//设置一个notify通知
ServiceProfile profile2 = new ServiceProfile();
profile2.setCharacteristicUuid(UUID.fromString("0000fff1-0000-1000-8000-00805f9b34fb"));
profile2.setCharacteristicProperties(BluetoothGattCharacteristic.PROPERTY_NOTIFY);
profile2.setCharacteristicPermission(BluetoothGattCharacteristic.PERMISSION_READ);
profile2.setDescriptorUuid(GattServer.CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID);
profile2.setDescriptorPermission(BluetoothGattDescriptor.PERMISSION_WRITE);
profile2.setDescriptorValue(new byte[]{1});
list.add(profile2);
final ServiceSettings serviceSettings = new ServiceSettings.Builder()
.setServiceUuid(UUID.fromString("0000fff0-0000-1000-8000-00805f9b34fb"))//服务uuid
.setServiceType(BluetoothGattService.SERVICE_TYPE_PRIMARY)
.addServiceProfiles(list)//上述设置添加到该服务里
.build();
mGattServer.addService(serviceSettings);
mGattServer.setOnAdvertiseListener(new OnAdvertiseListener() {
@Override
public void onStartSuccess(AdvertiseSettings settingsInEffect) {
setContentText("开启广播 成功，uuid：0000fff0-0000-1000-8000-00805f9b34fb");
}
@Override
public void onStartFailure(int errorCode) {
setContentText("开启广播 失败，uuid：0000fff0-0000-1000-8000-00805f9b34fb");
}
@Override
public void onStopAdvertising() {
setContentText("停止广播，uuid：0000fff0-0000-1000-8000-00805f9b34fb");
}
});
mGattServer.setOnServiceAddedListener(new OnServiceAddedListener() {
@Override
public void onSuccess(BluetoothGattService service) {
setContentText("添加服务成功！");
}
@Override
public void onFail(BluetoothGattService service) {
setContentText("添加服务失败");
}
});
mGattServer.setOnConnectionStateChangeListener(new OnConnectionStateChangeListener() {
@Override
public void onChange(BluetoothDevice device, int status, int newState) {
}
@Override
public void onConnected(BluetoothDevice device) {
setContentText("连接上一台设备 ：{ name = " + device.getName() + ", address = " + device.getAddress() + "}");
mBluetoothDevice = device;
}
@Override
public void onDisconnected(BluetoothDevice device) {
setContentText("设备断开连接 ：{ name = " + device.getName() + ", address = " + device.getAddress() + "}");
}
});
mGattServer.setOnWriteRequestListener(new OnWriteRequestListener() {
@Override
public void onCharacteristicWritten(BluetoothDevice device, BluetoothGattCharacteristic characteristic, byte[] value) {
setContentText("设备写入特征请求 ： device = " + device.getAddress() + ", characteristic uuid = " + characteristic.getUuid().toString() + ", value = " + Arrays.toString(value));
}
@Override
public void onDescriptorWritten(BluetoothDevice device, BluetoothGattDescriptor descriptor, byte[] value) {
setContentText("设备写入描述请求 ： device = " + device.getAddress() + ", descriptor uuid = " + descriptor.getUuid().toString() + ", value = " + Arrays.toString(value));
}
});
dependencies {
compile ‘will be come soon..‘
}BluetoothLE-Multi-Library 一个能够连接多台蓝牙设备的库，它可以作为client端，也可以为server端。支持主机／从机，外围设备连接。
原文：https://www.cnblogs.com/Free-Thinker/p/9292231.html