private void StartScanningNew(Guid[] serviceUuids)
{
var hasFilter = serviceUuids?.Any() ?? false;
List <ScanFilter> scanFilters = null;
if (hasFilter)
{
scanFilters = new List <ScanFilter>();
foreach (var serviceUuid in serviceUuids)
{
var sfb = new ScanFilter.Builder();
sfb.SetServiceUuid(ParcelUuid.FromString(serviceUuid.ToString()));
scanFilters.Add(sfb.Build());
}
}
var ssb = new ScanSettings.Builder();
ssb.SetScanMode(ScanMode.ToNative());
//ssb.SetCallbackType(ScanCallbackType.AllMatches);
if (_bluetoothAdapter.BluetoothLeScanner != null)
{
Trace.Message($"Adapter >=21: Starting a scan for devices. ScanMode: {ScanMode}");
if (hasFilter)
{
Trace.Message($"ScanFilters: {string.Join(", ", serviceUuids)}");
}
_bluetoothAdapter.BluetoothLeScanner.StartScan(scanFilters, ssb.Build(), _api21ScanCallback);
}
else
{
Trace.Message("Adapter >= 21: Scan failed. Bluetooth is probably off");
}
}
static async Task <IReadOnlyCollection <BluetoothDevice> > PlatformScanForDevices(RequestDeviceOptions options)
{
List <ScanFilter> filters = new List <ScanFilter>();
foreach (var f in options.Filters)
{
foreach (var u in f.Services)
{
ScanFilter.Builder b = new ScanFilter.Builder();
b.SetServiceUuid(ParcelUuid.FromString(u.Value.ToString()));
filters.Add(b.Build());
}
}
ScanSettings.Builder sb = new ScanSettings.Builder();
sb.SetScanMode(Android.Bluetooth.LE.ScanMode.Balanced);
var settings = sb.Build();
var callback = new DevicesCallback();
_manager.Adapter.BluetoothLeScanner.StartScan(callback);
await Task.Delay(30000);
return(callback.Devices.AsReadOnly());
}
public void InitFilter(Guid[] filter)
{
if (filter != null && filter.Length > 0)
{
foreach (Guid selectedFilter in filter)
{
ParcelUuid parcelUuid = null;
ScanFilter.Builder filterBuilder = new ScanFilter.Builder();
ScanFilter currentFilter = null;
try
{
parcelUuid = ParcelUuid.FromString(selectedFilter.ToString());
filterBuilder.SetServiceUuid(parcelUuid);
currentFilter = filterBuilder.Build();
this.scanfiltersList.Add(currentFilter);
}
catch (Exception)
{
}
this.Filter = filter;
}
}
}
public DroidBluetoothDriver(Guid[] filter)
: this(null, null)
{
ScanSettings.Builder scanSettingsBuilder = null;
scanSettingsBuilder = new ScanSettings.Builder();
scanSettingsBuilder.SetMatchMode(BluetoothScanMatchMode.Aggressive);
scanSettingsBuilder.SetScanMode(Android.Bluetooth.LE.ScanMode.LowLatency);
this.scanSettings = scanSettingsBuilder.Build();
this.scanfiltersList = new List <ScanFilter>();
if (filter != null && filter.Length > 0)
{
foreach (Guid selectedFilter in filter)
{
ParcelUuid parcelUuid = null;
ScanFilter.Builder filterBuilder = new ScanFilter.Builder();
ScanFilter currentFilter = null;
try
{
parcelUuid = ParcelUuid.FromString(selectedFilter.ToString());
filterBuilder.SetServiceUuid(parcelUuid);
currentFilter = filterBuilder.Build();
this.scanfiltersList.Add(currentFilter);
}
catch (Exception)
{
}
}
}
}
protected virtual void StartNewScanner(ScanConfig config)
{
this.newCallback = new LollipopScanCallback(args => this.Scanned?.Invoke(this, args));
var scanMode = this.ToNative(config.ScanType);
var filterBuilderList = new List <ScanFilter>();
if (config.ServiceUuids != null && config.ServiceUuids.Count > 0)
{
foreach (var uuid in config.ServiceUuids)
{
var filterBuilder = new ScanFilter.Builder();
filterBuilder.SetServiceUuid(uuid.ToParcelUuid());
filterBuilderList.Add(filterBuilder.Build());
}
}
else
{
var filterBuilder = new ScanFilter.Builder();
filterBuilderList.Add(filterBuilder.Build());
}
//new ScanFilter.Builder().SetDeviceAddress().Set
this.manager.Adapter.BluetoothLeScanner.StartScan(
filterBuilderList,
new ScanSettings
.Builder()
.SetScanMode(scanMode)
.Build(),
this.newCallback
);
}
private IList <ScanFilter> BuildScanFilters(TracingInformation tracingInformation)
{
var scanFilters = new List <ScanFilter>();
var builder = new ScanFilter.Builder();
var serviceUuid = ParcelUuid.FromString(tracingInformation.ServiceId);
builder.SetServiceUuid(serviceUuid);
scanFilters.Add(builder.Build());
return(scanFilters);
}
private void StartScanningNew(Guid[] serviceUuids, ManufacturerData[] manufacturerDataFilters)
{
var hasFilter = serviceUuids?.Any() ?? false;
List <ScanFilter> scanFilters = null;
if (hasFilter)
{
scanFilters = new List <ScanFilter>();
foreach (var serviceUuid in serviceUuids)
{
var sfb = new ScanFilter.Builder();
sfb.SetServiceUuid(ParcelUuid.FromString(serviceUuid.ToString()));
scanFilters.Add(sfb.Build());
}
foreach (var manufacturerData in manufacturerDataFilters)
{
var sfb = new ScanFilter.Builder();
sfb.SetManufacturerData(manufacturerData.Id, manufacturerData.Data);
scanFilters.Add(sfb.Build());
}
}
var ssb = new ScanSettings.Builder();
ssb.SetScanMode(ScanMode.ToNative());
if (Build.VERSION.SdkInt >= BuildVersionCodes.O)
{
// enable Bluetooth 5 Advertisement Extensions on Android 8.0 and above
ssb.SetLegacy(false);
}
//ssb.SetCallbackType(ScanCallbackType.AllMatches);
if (_bluetoothAdapter.BluetoothLeScanner != null)
{
Trace.Message($"Adapter >=21: Starting a scan for devices. ScanMode: {ScanMode}");
if (hasFilter)
{
Trace.Message($"ScanFilters: {string.Join(", ", serviceUuids)}");
}
_bluetoothAdapter.BluetoothLeScanner.StartScan(scanFilters, ssb.Build(), _api21ScanCallback);
}
else
{
Trace.Message("Adapter >= 21: Scan failed. Bluetooth is probably off");
}
}
public async void StartScanningForDevices(int timeOutSeconds = 10, string serviceUuid = null)
{
Console.WriteLine("Adapter: Starting a scan for devices.");
// clear out the list
this._discoveredDevices = new List <IDevice> ();
// start scanning
this._isScanning = true;
var scanFilterBuilder = new ScanFilter.Builder();
if (!string.IsNullOrWhiteSpace(serviceUuid))
{
scanFilterBuilder.SetServiceUuid(ParcelUuid.FromString(serviceUuid));
}
var filter = scanFilterBuilder.Build();
var filterList = new List <ScanFilter>()
{
filter
};
var scanSettingBuilder = new ScanSettings.Builder();
scanSettingBuilder.SetScanMode(ScanMode.Balanced);
var scanSettings = scanSettingBuilder.Build();
this._adapter.BluetoothLeScanner.StartScan(filterList, scanSettings, _scanCallback);
//this._adapter.StartLeScan (this);
// in 10 seconds, stop the scan
await Task.Delay(TimeSpan.FromSeconds(timeOutSeconds));
// if we're still scanning
if (this._isScanning)
{
Console.WriteLine("BluetoothLEManager: Scan timeout has elapsed.");
// Use the method, because it also updates the _isScanning portion.
StopScanningForDevices();
this.ScanTimeoutElapsed(this, new EventArgs());
}
}
protected virtual void StartNewScanner(ScanConfig config)
{
this.newCallback = new LollipopScanCallback(args => this.Scanned?.Invoke(this, args));
var scanMode = this.ToNative(config.ScanType);
var filterBuilder = new ScanFilter.Builder();
if (config.ServiceUuid != null)
{
filterBuilder.SetServiceUuid(config.ServiceUuid.Value.ToParcelUuid());
}
//new ScanFilter.Builder().SetDeviceAddress().Set
this.manager.Adapter.BluetoothLeScanner.StartScan(
new [] { filterBuilder.Build() },
new ScanSettings
.Builder()
.SetScanMode(scanMode)
.Build(),
this.newCallback
);
}
void UpdateScanFilters()
{
if (_scanObservers.Any(obs => obs.Services == null))
{
_scanFilters = null;
}
else
{
var builder = new ScanFilter.Builder();
_scanFilters = _scanObservers
.Aggregate(new HashSet <ServiceUuid>(), (acc, elem) => { acc.UnionWith(elem.Services); return(acc); })
.Select(svc =>
{
builder.SetServiceUuid(svc.Uuid.ToParcelUuid());
return(builder.Build());
})
.ToArray();
}
Reschedule();
}
public async void StartScanning()
{
if (IsScanning)
{
return;
}
IsScanning = true;
// TODO: Handle power on state.
if (_sdkInt >= Android.OS.BuildVersionCodes.Lollipop) // 21
{
_bleScanner = _adapter.BluetoothLeScanner;
_scanCallback = new OWBLE_ScanCallback(this);
var scanFilters = new List <ScanFilter>();
var scanSettingsBuilder = new ScanSettings.Builder();
var scanFilterBuilder = new ScanFilter.Builder();
scanFilterBuilder.SetServiceUuid(OWBoard.ServiceUUID.ToParcelUuid());
scanFilters.Add(scanFilterBuilder.Build());
_bleScanner.StartScan(scanFilters, scanSettingsBuilder.Build(), _scanCallback);
}
else if (_sdkInt >= Android.OS.BuildVersionCodes.JellyBeanMr2) // 18
{
_leScanCallback = new OWBLE_LeScanCallback(this);
#pragma warning disable 0618
_adapter.StartLeScan(new Java.Util.UUID[] { OWBoard.ServiceUUID.ToUUID() }, _leScanCallback);
#pragma warning restore 0618
}
else
{
throw new NotImplementedException("Can't run bluetooth scans on device lower than Android 4.3");
}
await Task.Delay(15 * 1000);
StopScanning();
}
public bool StartScanning()
{
if (isScanning)
{
return(true);
}
if (IsEnabled)
{
// Stops scanning after a pre-defined scan period.
//scanHandler.PostDelayed(new Runnable(() =>
//{
// isScanning = false;
// scanner.StopScan(scanCallback);
//}), 10000);
isScanning = true;
ScanFilter.Builder builder = new ScanFilter.Builder();
builder.SetServiceUuid(DottedUUID);
ScanSettings.Builder sBuilder = new ScanSettings.Builder();
sBuilder.SetScanMode(Android.Bluetooth.LE.ScanMode.LowPower);
scanner.StartScan(new List <ScanFilter> {
builder.Build()
},
sBuilder.Build(),
scanCallback);
return(true);
}
else
{
isScanning = false;
scanner.StopScan(scanCallback);
return(false);
}
}
protected override Task StartScanningForDevicesNativeAsync(Guid[] serviceUuids, CancellationToken scanCancellationToken)
{
// clear out the list
DiscoveredDevices.Clear();
if (serviceUuids == null || !serviceUuids.Any())
{
if (Build.VERSION.SdkInt < BuildVersionCodes.Lollipop)
{
Trace.Message("Adapter < 21: Starting a scan for devices.");
//without filter
#pragma warning disable 618
_bluetoothAdapter.StartLeScan(_api18ScanCallback);
#pragma warning restore 618
}
else
{
Trace.Message("Adapter >= 21: Starting a scan for devices.");
if (_bluetoothAdapter.BluetoothLeScanner != null)
{
_bluetoothAdapter.BluetoothLeScanner.StartScan(_api21ScanCallback);
}
else
{
Trace.Message("Adapter >= 21: Scan failed. Bluetooth is probably off");
}
}
}
else
{
if (Build.VERSION.SdkInt < BuildVersionCodes.Lollipop)
{
var uuids = serviceUuids.Select(u => UUID.FromString(u.ToString())).ToArray();
Trace.Message("Adapter < 21: Starting a scan for devices.");
#pragma warning disable 618
_bluetoothAdapter.StartLeScan(uuids, _api18ScanCallback);
#pragma warning restore 618
}
else
{
Trace.Message("Adapter >=21: Starting a scan for devices with service Id {0}.", serviceUuids.First());
var scanFilters = new List <ScanFilter>();
foreach (var serviceUuid in serviceUuids)
{
var sfb = new ScanFilter.Builder();
sfb.SetServiceUuid(ParcelUuid.FromString(serviceUuid.ToString()));
scanFilters.Add(sfb.Build());
}
var ssb = new ScanSettings.Builder();
//ssb.SetCallbackType(ScanCallbackType.AllMatches);
if (_bluetoothAdapter.BluetoothLeScanner != null)
{
_bluetoothAdapter.BluetoothLeScanner.StartScan(scanFilters, ssb.Build(), _api21ScanCallback);
}
else
{
Trace.Message("Adapter >= 21: Scan failed. Bluetooth is probably off");
}
}
}
return(Task.FromResult(true));
}
private async void StartLeScan(Guid[] serviceUuids)
{
if (_isScanning)
{
Mvx.Trace("Adapter: Already scanning.");
return;
}
_isScanning = true;
// clear out the list
_discoveredDevices = new List <IDevice>();
if (serviceUuids == null || !serviceUuids.Any())
{
if (Build.VERSION.SdkInt < BuildVersionCodes.Lollipop)
{
Mvx.Trace("Adapter < 21: Starting a scan for devices.");
//without filter
_adapter.StartLeScan(this);
}
else
{
Mvx.Trace("Adapter >= 21: Starting a scan for devices.");
if (_adapter.BluetoothLeScanner != null)
{
_adapter.BluetoothLeScanner.StartScan(_api21ScanCallback);
}
else
{
Mvx.Trace("Adapter >= 21: Scan failed. Bluetooth is probably off");
}
}
}
else
{
if (Build.VERSION.SdkInt < BuildVersionCodes.Lollipop)
{
var uuids = serviceUuids.Select(u => UUID.FromString(u.ToString())).ToArray();
Mvx.Trace("Adapter < 21: Starting a scan for devices.");
_adapter.StartLeScan(uuids, this);
}
else
{
Mvx.Trace("Adapter >=21: Starting a scan for devices with service ID {0}.", serviceUuids.First());
var scanFilters = new List <ScanFilter>();
foreach (var serviceUuid in serviceUuids)
{
var sfb = new ScanFilter.Builder();
sfb.SetServiceUuid(ParcelUuid.FromString(serviceUuid.ToString()));
scanFilters.Add(sfb.Build());
}
var ssb = new ScanSettings.Builder();
//ssb.SetCallbackType(ScanCallbackType.AllMatches);
if (_adapter.BluetoothLeScanner != null)
{
_adapter.BluetoothLeScanner.StartScan(scanFilters, ssb.Build(), _api21ScanCallback);
}
else
{
Mvx.Trace("Adapter >= 21: Scan failed. Bluetooth is probably off");
}
}
}
// in ScanTimeout seconds, stop the scan
_cancellationTokenSource = new CancellationTokenSource();
try
{
await Task.Delay(ScanTimeout, _cancellationTokenSource.Token);
Mvx.Trace("Adapter: Scan timeout has elapsed.");
StopScan();
TryDisposeToken();
_isScanning = false;
//important for this to be caled after _isScanning = false;
ScanTimeoutElapsed(this, new EventArgs());
}
catch (TaskCanceledException)
{
Mvx.Trace("Adapter: Scan was cancelled.");
StopScan();
TryDisposeToken();
_isScanning = false;
}
}
private void StartScanningNew(ScanFilterOptions scanFilterOptions)
{
var hasFilter = scanFilterOptions?.HasFilter == true;
List <ScanFilter> scanFilters = null;
if (hasFilter)
{
scanFilters = new List <ScanFilter>();
if (scanFilterOptions.HasServiceIds)
{
foreach (var serviceUuid in scanFilterOptions.ServiceUuids)
{
var sfb = new ScanFilter.Builder();
sfb.SetServiceUuid(ParcelUuid.FromString(serviceUuid.ToString()));
scanFilters.Add(sfb.Build());
}
}
if (scanFilterOptions.HasServiceData)
{
foreach (var serviceDataFilter in scanFilterOptions.ServiceDataFilters)
{
var sfb = new ScanFilter.Builder();
if (serviceDataFilter.ServiceDataMask == null)
{
sfb.SetServiceData(ParcelUuid.FromString(serviceDataFilter.ServiceDataUuid.ToString()), serviceDataFilter.ServiceData);
}
else
{
sfb.SetServiceData(ParcelUuid.FromString(serviceDataFilter.ServiceDataUuid.ToString()), serviceDataFilter.ServiceData, serviceDataFilter.ServiceDataMask);
}
scanFilters.Add(sfb.Build());
}
}
if (scanFilterOptions.HasManufacturerIds)
{
foreach (var manufacturerDataFilter in scanFilterOptions.ManufacturerDataFilters)
{
var sfb = new ScanFilter.Builder();
if (manufacturerDataFilter.ManufacturerDataMask != null)
{
sfb.SetManufacturerData(manufacturerDataFilter.ManufacturerId, manufacturerDataFilter.ManufacturerData);
}
else
{
sfb.SetManufacturerData(manufacturerDataFilter.ManufacturerId, manufacturerDataFilter.ManufacturerData, manufacturerDataFilter.ManufacturerDataMask);
}
scanFilters.Add(sfb.Build());
}
}
if (scanFilterOptions.HasDeviceAddresses)
{
foreach (var deviceAddress in scanFilterOptions.DeviceAddresses)
{
if (BluetoothAdapter.CheckBluetoothAddress(deviceAddress))
{
var sfb = new ScanFilter.Builder();
sfb.SetDeviceAddress(deviceAddress);
scanFilters.Add(sfb.Build());
}
else
{
Trace.Message($"Device address {deviceAddress} is invalid. The correct format is \"01:02:03:AB:CD:EF\"");
}
}
}
if (scanFilterOptions.HasDeviceNames)
{
foreach (var deviceName in scanFilterOptions.DeviceNames)
{
var sfb = new ScanFilter.Builder();
sfb.SetDeviceName(deviceName);
scanFilters.Add(sfb.Build());
}
}
}
var ssb = new ScanSettings.Builder();
ssb.SetScanMode(ScanMode.ToNative());
if (Build.VERSION.SdkInt >= BuildVersionCodes.O)
{
// enable Bluetooth 5 Advertisement Extensions on Android 8.0 and above
ssb.SetLegacy(false);
}
//ssb.SetCallbackType(ScanCallbackType.AllMatches);
if (_bluetoothAdapter.BluetoothLeScanner != null)
{
Trace.Message($"Adapter >=21: Starting a scan for devices. ScanMode: {ScanMode}");
if (hasFilter)
{
if (scanFilterOptions.HasServiceIds)
{
Trace.Message($"Service UUID Scan Filters: {string.Join(", ", scanFilterOptions.ServiceUuids)}");
}
if (scanFilterOptions.HasServiceData)
{
Trace.Message($"Service Data Scan Filters: {string.Join(", ", scanFilterOptions.ServiceDataFilters.ToString())}");
}
if (scanFilterOptions.HasManufacturerIds)
{
Trace.Message($"Manufacturer Id Scan Filters: {string.Join(", ", scanFilterOptions.ManufacturerDataFilters.ToString())}");
}
if (scanFilterOptions.HasDeviceAddresses)
{
Trace.Message($"Device Address Scan Filters: {string.Join(", ", scanFilterOptions.DeviceAddresses)}");
}
if (scanFilterOptions.HasDeviceNames)
{
Trace.Message($"Device Name Scan Filters: {string.Join(", ", scanFilterOptions.DeviceNames)}");
}
}
_bluetoothAdapter.BluetoothLeScanner.StartScan(scanFilters, ssb.Build(), _api21ScanCallback);
}
else
{
Trace.Message("Adapter >= 21: Scan failed. Bluetooth is probably off");
}
}
private async void StartLeScan(Guid[] serviceUuids)
{
if (_isScanning)
{
Mvx.Trace("Adapter: Already scanning.");
return;
}
_isScanning = true;
// clear out the list
_discoveredDevices = new List<IDevice>();
if (serviceUuids == null || !serviceUuids.Any())
{
if (Build.VERSION.SdkInt < BuildVersionCodes.Lollipop)
{
Mvx.Trace("Adapter < 21: Starting a scan for devices.");
//without filter
_adapter.StartLeScan(this);
}
else
{
Mvx.Trace("Adapter >= 21: Starting a scan for devices.");
if (_adapter.BluetoothLeScanner != null)
{
_adapter.BluetoothLeScanner.StartScan(_api21ScanCallback);
}
else
{
Mvx.Trace("Adapter >= 21: Scan failed. Bluetooth is probably off");
}
}
}
else
{
if (Build.VERSION.SdkInt < BuildVersionCodes.Lollipop)
{
var uuids = serviceUuids.Select(u => UUID.FromString(u.ToString())).ToArray();
Mvx.Trace("Adapter < 21: Starting a scan for devices.");
_adapter.StartLeScan(uuids, this);
}
else
{
Mvx.Trace("Adapter >=21: Starting a scan for devices with service ID {0}.", serviceUuids.First());
var scanFilters = new List<ScanFilter>();
foreach (var serviceUuid in serviceUuids)
{
var sfb = new ScanFilter.Builder();
sfb.SetServiceUuid(ParcelUuid.FromString(serviceUuid.ToString()));
scanFilters.Add(sfb.Build());
}
var ssb = new ScanSettings.Builder();
//ssb.SetCallbackType(ScanCallbackType.AllMatches);
if (_adapter.BluetoothLeScanner != null)
{
_adapter.BluetoothLeScanner.StartScan(scanFilters, ssb.Build(), _api21ScanCallback);
}
else
{
Mvx.Trace("Adapter >= 21: Scan failed. Bluetooth is probably off");
}
}
}
// in ScanTimeout seconds, stop the scan
_cancellationTokenSource = new CancellationTokenSource();
try
{
await Task.Delay(ScanTimeout, _cancellationTokenSource.Token);
Mvx.Trace("Adapter: Scan timeout has elapsed.");
StopScan();
TryDisposeToken();
_isScanning = false;
//important for this to be caled after _isScanning = false;
ScanTimeoutElapsed(this, new EventArgs());
}
catch (TaskCanceledException)
{
Mvx.Trace("Adapter: Scan was cancelled.");
StopScan();
TryDisposeToken();
_isScanning = false;
}
}
