private static async Task <BluetoothLEScan> DoRequestLEScan(BluetoothLEScanFilter filter)
{
if (watcher == null)
{
watcher = new BluetoothLEAdvertisementWatcher(filter);
watcher.Received += Watcher_Received;
}
else
{
watcher.AdvertisementFilter = filter;
}
watcher.Start();
return(watcher);
}
private static async Task <BluetoothLEScan> DoRequestLEScan(BluetoothLEScanFilter filter)
{
return(null);
}
public static Task <BluetoothLEScan> RequestLEScanAsync(BluetoothLEScanFilter filter)
{
return(DoRequestLEScan(filter));
}