public override async Task <bool> UpdateRssiAsync()
{
var tcs = new TaskCompletionSource <bool>();
EventHandler <CBRssiEventArgs> handler = null;
handler = (sender, args) =>
{
Trace.Message("Read RSSI async for {0} {1}: {2}", Id, Name, args.Rssi);
_nativeDevice.RssiRead -= handler;
var success = args.Error == null;
if (success)
{
Rssi = args.Rssi?.Int32Value ?? 0;
}
tcs.TrySetResult(success);
};
_nativeDevice.RssiRead += handler;
_nativeDevice.ReadRSSI();
return(await tcs.Task);
}
internal void Update(CBPeripheral nativeDevice)
{
nativeDevice.ReadRSSI();
//Rssi = nativeDevice.RSSI?.Int32Value ?? 0;
//It's maybe not the best idea to updated the name based on CBPeripherial name because this might be stale.
//Name = nativeDevice.Name;
}
public void RequestRSSIUpdate()
{
if (_updatingRSSI)
{
return;
}
_updatingRSSI = true;
_peripheral?.ReadRSSI();
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
UITableViewCell cell = tableView.DequeueReusableCell(cellID);
cell = cell ?? new UITableViewCell(UITableViewCellStyle.Subtitle, cellID);
CBPeripheral peripheral = Peripherals [indexPath.Row];
//TODO: convert to async and update?
peripheral.ReadRSSI();
cell.TextLabel.Text = peripheral.Name;
cell.DetailTextLabel.Text = string.Format("UUID: {0}, Signal Strength: {1}", GetIdentifier(peripheral), peripheral.RSSI);
return(cell);
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
UITableViewCell cell = tableView.DequeueReusableCell(cellID);
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Subtitle, cellID);
}
CBPeripheral peripheral = this._peripherals [indexPath.Row];
//TODO: convert to async and update?
peripheral.ReadRSSI();
cell.TextLabel.Text = peripheral.Name;
cell.DetailTextLabel.Text = "UUID: " + peripheral.UUID.ToString() + ", Signal Strength: " + peripheral.RSSI;
return(cell);
}
public override void ReadRssi()
{
_nativeDevice.ReadRSSI();
}
public Task <int> GetRssiAsync()
{
deviceTaskCompletitionSource.RssiTCS = new TaskCompletionSource <int>();
_device.ReadRSSI();
return(deviceTaskCompletitionSource.RssiTCS.Task);
}
/// <summary>
/// Refresh RSSI value from the device.
/// </summary>
public void RefreshRssi()
{
_peripheral.RssiRead += PeripheralOnRssiUpdated;
_peripheral.ReadRSSI();
}