public AndroidBluetooth(BTCallback btCallback)
{
this.callback = btCallback;
btManager = (BluetoothManager)MainActivity.MainContext.GetSystemService(Context.BluetoothService);
btAdapter = btManager.Adapter;
scanCallback = new MyScanCallback(this);
bluetoothGattCallback = new MyGattCallback(this);
// Watch for Bluetooth Power Changes
btCheckThread = new Thread(new ThreadStart(() => {
bool lastState = false;
while (true && btAdapter != null)
{
bool state = btAdapter.IsEnabled;
if (state != lastState)
{
lastState = state;
if (!state)
{
endEnumeration();
disconnect();
}
callback.onBluetoothPowerChanged(state);
}
Thread.Sleep(100);
}
}));
btCheckThread.Start();
}
void IAdvertiseAndDiscoverBluetoothDevice.Discover()
{
try
{
Analytics.TrackEvent(Build.Model + " Discover method called.");
List <ScanFilter> filters = new List <ScanFilter>();
ScanFilter filter = new ScanFilter.Builder()
.SetServiceUuid(new ParcelUuid(MY_UUID))
.Build();
filters.Add(filter);
//ScanSettings settings = new ScanSettings.Builder()
// .SetScanMode(Android.Bluetooth.LE.ScanMode.LowLatency)
// .Build();
ScanSettings.Builder builder = new ScanSettings.Builder();
builder.SetScanMode(Android.Bluetooth.LE.ScanMode.LowLatency);
if (Build.VERSION.SdkInt >= BuildVersionCodes.M /* Marshmallow */)
{
builder.SetMatchMode(BluetoothScanMatchMode.Aggressive);
builder.SetNumOfMatches((int)BluetoothScanMatchNumber.MaxAdvertisement);
builder.SetCallbackType(ScanCallbackType.AllMatches);
}
var settings = builder.Build();
myScanCallback = new MyScanCallback();
bluetoothLeScanner = BluetoothAdapter.DefaultAdapter.BluetoothLeScanner;
bluetoothLeScanner.StartScan(filters, settings, myScanCallback);
}
catch (System.Exception ex)
{
Analytics.TrackEvent(Build.Model + " Something went wrong in Discover method.");
}
}
public Adapter()
{
var appContext = Android.App.Application.Context;
// get a reference to the bluetooth system service
this._manager = (BluetoothManager)appContext.GetSystemService("bluetooth");
this._adapter = this._manager.Adapter;
this._gattCallback = new GattCallback(this);
_scanCallback = new MyScanCallback(this);
this._gattCallback.DeviceConnected += (object sender, DeviceConnectionEventArgs e) => {
this._connectedDevices.Add(e.Device);
this.DeviceConnected(this, e);
};
this._gattCallback.DeviceDisconnected += (object sender, DeviceConnectionEventArgs e) => {
// TODO: remove the disconnected device from the _connectedDevices list
// i don't think this will actually work, because i'm created a new underlying device here.
//if(this._connectedDevices.Contains(
this.DeviceDisconnected(this, e);
};
}
