android 蓝牙重复扫描

最新推荐文章于 2025-06-22 22:31:32 发布

maimu9365

最新推荐文章于 2025-06-22 22:31:32 发布

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本文链接：https://blog.youkuaiyun.com/maimu9365/article/details/53935383

在将蓝牙扫描功能从Activity迁移到Service时遇到问题，无法实现在Service中持续进行蓝牙扫描。代码展示了一个实现了LocationListener的Service，包含了蓝牙适配器的初始化、扫描设置以及定时扫描管理。目标是使蓝牙在后台服务中能持续扫描设备。

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我想在service内让蓝牙可以一直执行扫描，之前在activity内可以重复扫描，但移植到服务后就不能了请问要怎么解决？

public class search_beacon extends Service implements LocationListener {

    HashMap<String, Integer> record = new HashMap<String, Integer>();
    private Long startTime;
    private Handler timer = new Handler();
    LocationManager locationManager;
    String best_loc;
    double latitude;
    double longitude;
    String sql;

    private BluetoothAdapter mBluetoothAdapter;
    private int REQUEST_ENABLE_BT = 1234;
    private Handler mHandler;
    private static final long SCAN_PERIOD = 10000;
    private BluetoothLeScanner mLEScanner;
    private ScanSettings settings;
    private List<ScanFilter> filters;

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate(){
        Log.i("search_beacon", "Enter onCreate()");
        super.onCreate();
        Log.i("search_beacon", "Leave onCreate()");
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.i("search_beacon","Enter onStartCommand()");

        //宣告倒數
        mHandler = new Handler();
        //ble
        if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
            Toast.makeText(this, "BLE Not Supported",
                    Toast.LENGTH_SHORT).show();
        }
        final BluetoothManager bluetoothManager =
                (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
        mBluetoothAdapter = bluetoothManager.getAdapter();
        //gps
        locationManager = (LocationManager) getSystem

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