RX蓝牙库连接低功耗蓝牙设备，java代码，maven项目

以下是使用RX蓝牙库连接低功耗蓝牙设备的Java代码示例，适用于Maven项目：

首先，需要在pom.xml文件中添加以下依赖：

<dependency>
    <groupId>com.polidea.rxandroidble2</groupId>
    <artifactId>rxandroidble</artifactId>
    <version>1.12.0</version>
</dependency>

然后，可以使用以下代码片段连接低功耗蓝牙设备：

import com.polidea.rxandroidble2.RxBleClient;
import com.polidea.rxandroidble2.RxBleConnection;
import com.polidea.rxandroidble2.exceptions.BleException;
import com.polidea.rxandroidble2.scan.ScanFilter;
import com.polidea.rxandroidble2.scan.ScanSettings;
import io.reactivex.Observable;
import io.reactivex.disposables.Disposable;

public class BluetoothManager {

    private RxBleClient rxBleClient;
    private RxBleConnection rxBleConnection;
    private Disposable scanDisposable;

    public void connectToBluetoothDevice() {
        // 初始化RxBleClient
        rxBleClient = RxBleClient.create(this);

        // 扫描低功耗蓝牙设备
        scanDisposable = rxBleClient.scanBleDevices(
                new ScanSettings.Builder()
                        .setScanMode(ScanSettings.SCAN_MODE_LOW_POWER)
                        .build(),
                new ScanFilter.Builder()
                        .setDeviceName("YOUR_DEVICE_NAME")
                        .build()
        ).subscribe(
                scanResult -> {
                    // 找到设备
                    String deviceName = scanResult.getBleDevice().getName();
                    if (deviceName != null && deviceName.equals("YOUR_DEVICE_NAME")) {
                        // 连接设备
                        connectToDevice(scanResult.getBleDevice().getMacAddress());
                        scanDisposable.dispose();
                    }
                },
                throwable -> {
                    // 扫描出错
                }
        );
    }

    private void connectToDevice(String macAddress) {
        // 建立低功耗蓝牙连接
        Observable<RxBleConnection> connectionObservable = rxBleClient.getBleDevice(macAddress).establishConnection(false);
        connectionObservable.subscribe(
                rxBleConnection -> {
                    // 连接成功
                    this.rxBleConnection = rxBleConnection;
                },
                throwable -> {
                    // 连接失败
                }
        );
    }

    public void disconnectFromBluetoothDevice() {
        // 断开低功耗蓝牙连接
        if (rxBleConnection != null) {
            rxBleConnection.dispose();
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        // 停止扫描
        if (scanDisposable != null && !scanDisposable.isDisposed()) {
            scanDisposable.dispose();
        }
    }
}

请注意，以上示例代码仅供参考，实际使用时需要根据实际情况进行修改和调整。