private void RegisterPeerFoundEvent()
{
_peerFoundCallback = (int result, WiFiDirectDiscoveryState stateInfo, string address, IntPtr userData) =>
{
if (_peerFound != null && stateInfo == WiFiDirectDiscoveryState.Found)
{
WiFiDirectError error = (WiFiDirectError)result;
WiFiDirectDiscoveryState state = stateInfo;
IntPtr peer;
Interop.WiFiDirect.GetDiscoveredPeerInfo(address, out peer);
DiscoveredPeerStruct peerStruct = (DiscoveredPeerStruct)Marshal.PtrToStructure(peer, typeof(DiscoveredPeerStruct));
_peerFound(null, new PeerFoundEventArgs(error, state, WiFiDirectUtils.ConvertStructToDiscoveredPeer(peerStruct)));
}
};
int ret = Interop.WiFiDirect.SetPeerFoundCallback(_peerFoundCallback, IntPtr.Zero);
if (ret != (int)WiFiDirectError.None)
{
Log.Error(Globals.LogTag, "Failed to set Wi-Fi Direct discovery state changed callback, Error - " + (WiFiDirectError)ret);
}
}
internal IEnumerable <WiFiDirectPeer> GetDiscoveredPeers()
{
List <WiFiDirectPeer> discoveredPeerList = new List <WiFiDirectPeer>();
Interop.WiFiDirect.DiscoveredPeerCallback callback = (ref DiscoveredPeerStruct peer, IntPtr userData) =>
{
if (!peer.Equals(null))
{
discoveredPeerList.Add(WiFiDirectUtils.ConvertStructToDiscoveredPeer(peer));
}
return(true);
};
int ret = Interop.WiFiDirect.GetDiscoveredPeers(callback, IntPtr.Zero);
if (ret != (int)WiFiDirectError.None)
{
Log.Error(Globals.LogTag, "Failed to get information of discovered peers, Error - " + (WiFiDirectError)ret);
WiFiDirectErrorFactory.ThrowWiFiDirectException(ret);
}
return(discoveredPeerList);
}
private void RegisterServiceStateChangedEvent()
{
_serviceStateChangedCallback = (int result, WiFiDirectServiceDiscoveryState stateInfo, WiFiDirectServiceType typeInfo, IntPtr responseData, string address, IntPtr userData) =>
{
if (_serviceStateChanged != null)
{
WiFiDirectError error = (WiFiDirectError)result;
WiFiDirectServiceDiscoveryState state = stateInfo;
WiFiDirectServiceType type = typeInfo;
string response = Marshal.PtrToStringAnsi(responseData);
IntPtr peer;
Interop.WiFiDirect.GetDiscoveredPeerInfo(address, out peer);
DiscoveredPeerStruct peerStruct = (DiscoveredPeerStruct)Marshal.PtrToStructure(peer, typeof(DiscoveredPeerStruct));
_serviceStateChanged(null, new ServiceStateChangedEventArgs(error, state, type, response, WiFiDirectUtils.ConvertStructToDiscoveredPeer(peerStruct)));
}
};
int ret = Interop.WiFiDirect.SetServiceStateChangedCallback(_serviceStateChangedCallback, IntPtr.Zero);
if (ret != (int)WiFiDirectError.None)
{
Log.Error(Globals.LogTag, "Failed to set service state changed callback, Error - " + (WiFiDirectError)ret);
}
}