Java Code Examples for android.bluetooth.le.ScanFilter#Builder

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public ScanFilter toApi21() {
    ScanFilter.Builder builder = new ScanFilter.Builder();
    if (mDeviceName != null) {
        builder.setDeviceName(mDeviceName);
    }
    if (mServiceUuid != null) {
        builder.setServiceUuid(mServiceUuid, mServiceUuidMask);
    }
    if (mDeviceAddress != null) {
        builder.setDeviceAddress(mDeviceAddress);
    }
    if (mServiceDataUuid != null) {
        builder.setServiceData(mServiceDataUuid, mServiceData, mServiceDataMask);
    }
    if (mManufacturerId < 0) {
        builder.setManufacturerData(mManufacturerId, mManufacturerData, mManufacturerDataMask);
    }
    return builder.build();
}
 

private void startScan(PublishSubject scanDataSubject) {
  BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
  if (adapter != null && adapter.isEnabled()) {
    // Setting service uuid scan filter failing on Galaxy S6 on Android 7.
    // Other devices and versions of Android have additional issues with Scan Filters.
    // Manually filter on scan operation.  Add a dummy filter to avoid Android 8.1+ enforcement
    // of filters during background scanning.
    List<ScanFilter> filters = new ArrayList<>();
    ScanFilter.Builder scanFilterBuilder = new ScanFilter.Builder();
    filters.add(scanFilterBuilder.build());

    ScanSettings.Builder settingsBuilder = new ScanSettings.Builder();
    settingsBuilder.setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY);

    BluetoothLeScanner bleScanner = adapter.getBluetoothLeScanner();
    if (bleScanner != null) {
      bleScanner.startScan(filters, settingsBuilder.build(), scanCallback);
    } else {
      if (RxCentralLogger.isError()) {
        RxCentralLogger.error("startScan - BluetoothLeScanner is null!");
      }

      scanDataSubject.onError(new ConnectionError(SCAN_FAILED));
    }
  } else {
    if (RxCentralLogger.isError()) {
      if (adapter == null) {
        RxCentralLogger.error("startScan - Default Bluetooth Adapter is null!");
      } else {
        RxCentralLogger.error("startScan - Bluetooth Adapter is disabled.");
      }
    }

    scanDataSubject.onError(new ConnectionError(SCAN_FAILED));
  }

}
 

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public ScanFilter createScanFilter() {
    ScanFilter.Builder builder = new ScanFilter.Builder()
            .setDeviceAddress(deviceAddress)
            .setDeviceName(deviceName);

    if (serviceUuid != null) {
        builder.setServiceUuid(serviceUuid, serviceUuidMask);
    }
    if (serviceDataUuid != null) {
        builder.setServiceData(serviceDataUuid, serviceData, serviceDataMask);
    }
    if (manufacturerId >= 0) {
        builder.setManufacturerData(manufacturerId, manufacturerData, manufacturerDataMask);
    }

    return builder.build();
}
 

/**
 * Return a List of {@link ScanFilter} objects to filter by Service UUID.
 */
private List<ScanFilter> buildScanFilters() {
    List<ScanFilter> scanFilters = new ArrayList<>();

    ScanFilter.Builder builder = new ScanFilter.Builder();
    // Comment out the below line to see all BLE devices around you
    builder.setServiceUuid(Constants.Service_UUID);
    scanFilters.add(builder.build());

    return scanFilters;
}
 

private void startScan(int scanMode) {
  BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
  if (adapter != null && adapter.isEnabled()) {
    // Add a dummy filter to avoid Android 8.1+ enforcement of filters during background isScanning.
    List<ScanFilter> filters = new ArrayList<>();
    ScanFilter.Builder scanFilterBuilder = new ScanFilter.Builder();
    filters.add(scanFilterBuilder.build());

    ScanSettings.Builder settingsBuilder = new ScanSettings.Builder();
    settingsBuilder.setScanMode(scanMode);

    BluetoothLeScanner bleScanner = adapter.getBluetoothLeScanner();
    if (bleScanner != null) {
      bleScanner.startScan(filters, settingsBuilder.build(), scanCallback);
    } else {
      if (RxCentralLogger.isError()) {
        RxCentralLogger.error("startScan - BluetoothLeScanner is null!");
      }

      getErrorSubject().onError(new ConnectionError(SCAN_FAILED));
    }
  } else {
    if (RxCentralLogger.isError()) {
      if (adapter == null) {
        RxCentralLogger.error("startScan - Default Bluetooth Adapter is null!");
      } else {
        RxCentralLogger.error("startScan - Bluetooth Adapter is disabled.");
      }
    }

    getErrorSubject().onError(new ConnectionError(SCAN_FAILED));
  }
}
 

/**
 * Return a List of {@link ScanFilter} objects to filter by Service UUID.
 */
private List<ScanFilter> buildScanFilters() {
    List<ScanFilter> scanFilters = new ArrayList<>();

    ScanFilter.Builder builder = new ScanFilter.Builder();
    // Comment out the below line to see all BLE devices around you
    builder.setServiceUuid(Constants.Service_UUID);
    scanFilters.add(builder.build());

    return scanFilters;
}
 

public List<ScanFilter> createScanFiltersForBeaconParsers(List<BeaconParser> beaconParsers) {
    List<ScanFilter> scanFilters = new ArrayList<ScanFilter>();
    // for each beacon parser, make a filter expression that includes all its desired
    // hardware manufacturers
    for (BeaconParser beaconParser: beaconParsers) {
        List<ScanFilterData> sfds = createScanFilterDataForBeaconParser(beaconParser);
        for (ScanFilterData sfd: sfds) {
            ScanFilter.Builder builder = new ScanFilter.Builder();
            if (sfd.serviceUuid != null) {
                // Use a 16 bit service UUID in a 128 bit form
                String serviceUuidString = String.format("0000%04X-0000-1000-8000-00805f9b34fb", sfd.serviceUuid);
                String serviceUuidMaskString = "FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF";
                ParcelUuid parcelUuid = ParcelUuid.fromString(serviceUuidString);
                ParcelUuid parcelUuidMask = ParcelUuid.fromString(serviceUuidMaskString);
                if (LogManager.isVerboseLoggingEnabled()) {
                    LogManager.d(TAG, "making scan filter for service: "+serviceUuidString+" "+parcelUuid);
                    LogManager.d(TAG, "making scan filter with service mask: "+serviceUuidMaskString+" "+parcelUuidMask);
                }
                builder.setServiceUuid(parcelUuid, parcelUuidMask);
            }
            else {
                builder.setServiceUuid(null);
                builder.setManufacturerData((int) sfd.manufacturer, sfd.filter, sfd.mask);
            }
            ScanFilter scanFilter = builder.build();
            if (LogManager.isVerboseLoggingEnabled()) {
                LogManager.d(TAG, "Set up a scan filter: "+scanFilter);
            }
            scanFilters.add(scanFilter);
        }
    }
    return scanFilters;
}
 

public List<ScanFilter> createWildcardScanFilters() {
    List<ScanFilter> scanFilters = new ArrayList<ScanFilter>();
    ScanFilter.Builder builder = new ScanFilter.Builder();
    scanFilters.add(builder.build());
    return scanFilters;
}