/// <summary>
/// 建立连接
/// </summary>
public async void Connecting()
{
//连接参数
WiFiDirectConnectionParameters connectionParams = new WiFiDirectConnectionParameters();
connectionParams.GroupOwnerIntent = 1;
WiFiDirectDevice wfdDevice;
string deviceId = TextBox_SelectedIP.Text;
try
{
wfdDevice = await WiFiDirectDevice.FromIdAsync(deviceId, connectionParams);
Invoke(() =>
{
TextBlock_ConnectedState.Text = "连接到设备" + deviceId;
});
EndpointPairs = wfdDevice.GetConnectionEndpointPairs();
EstablishSocketFromConnector(EndpointPairs[0].RemoteHostName, "50001");
}
catch (Exception exp)
{
Invoke(() => { TextBlock_ConnectedState.Text = exp.Message; });
}
}
public static async System.Threading.Tasks.Task ConnectAsync(string deviceId, bool IsReceiver)
{
try
{
WiFiDirectConnectionParameters connectionParams = new WiFiDirectConnectionParameters();
WiFiDirectDevice wfdDevice = null;
connectionParams.GroupOwnerIntent = (short)(IsReceiver ? 15 : 0);
connectionParams.PreferredPairingProcedure = WiFiDirectPairingProcedure.GroupOwnerNegotiation;
connectionParams.PreferenceOrderedConfigurationMethods.Clear();
connectionParams.PreferenceOrderedConfigurationMethods.Add(WiFiDirectConfigurationMethod.PushButton);
wfdDevice = await WiFiDirectDevice.FromIdAsync(deviceId, connectionParams);
// Register for the ConnectionStatusChanged event handler
wfdDevice.ConnectionStatusChanged += OnConnectionStatusChanged;
var endpointPairs = wfdDevice.GetConnectionEndpointPairs();
MessagingCenter.Send("P2PShare", "WFDConnectError", "Connected IP Address: " + endpointPairs[0].RemoteHostName);
MessagingCenter.Send("P2PShare", "WFDConnected", endpointPairs[0].RemoteHostName.ToString());
}
catch (Exception)
{
/*MessagingCenter.Send("P2PShare", "WFDConnectError", "Connection to " + deviceId + " failed " + err.Message);
* DependencyService.Get<IPlatformDependent>().Dispose();
* DependencyService.Get<IPlatformDependent>().Init(true);
* System.Threading.Thread.Sleep(1000);
*
* if (--ConnectionAttempt > 0)
* await ConnectAsync(deviceId, IsReceiver);
* else
* {
* ConnectionAttempt = 50;
* }*/
}
MessagingCenter.Send("P2PShare", "WFDConnectIsEnabled", true);
}
private async void PairWithSelectedDevice(DeviceInformation selectedDevice)
{
//set the group owner intent to indicate that we want the receiver to be the owner
WiFiDirectConnectionParameters connectionParams = new WiFiDirectConnectionParameters();
connectionParams.GroupOwnerIntent = 1;
//connect to the selected device
try
{
var wfdDevice = await WiFiDirectDevice.FromIdAsync(selectedDevice.Id, connectionParams);
}
catch (Exception e)
{
StatusBlock.Text = "Unable to connect";
}
}
public async Task <bool> RequestPairDeviceAsync(DeviceInformationPairing pairing)
{
WiFiDirectConnectionParameters connectionParams = new WiFiDirectConnectionParameters();
short?groupOwnerIntent = Utils.GetSelectedItemTag <short?>(cmbGOIntent);
if (groupOwnerIntent.HasValue)
{
connectionParams.GroupOwnerIntent = groupOwnerIntent.Value;
}
DevicePairingKinds devicePairingKinds = DevicePairingKinds.None;
if (_supportedConfigMethods.Count > 0)
{
// If specific configuration methods were added, then use them.
foreach (var configMethod in _supportedConfigMethods)
{
connectionParams.PreferenceOrderedConfigurationMethods.Add(configMethod);
devicePairingKinds |= WiFiDirectConnectionParameters.GetDevicePairingKinds(configMethod);
}
}
else
{
// If specific configuration methods were not added, then we'll use these pairing kinds.
devicePairingKinds = DevicePairingKinds.ConfirmOnly | DevicePairingKinds.DisplayPin | DevicePairingKinds.ProvidePin;
}
connectionParams.PreferredPairingProcedure = Utils.GetSelectedItemTag <WiFiDirectPairingProcedure>(cmbPreferredPairingProcedure);
DeviceInformationCustomPairing customPairing = pairing.Custom;
customPairing.PairingRequested += OnPairingRequested;
DevicePairingResult result = await customPairing.PairAsync(devicePairingKinds, DevicePairingProtectionLevel.Default, connectionParams);
if (result.Status != DevicePairingResultStatus.Paired)
{
//rootPage.NotifyUser($"PairAsync failed, Status: {result.Status}", NotifyType.ErrorMessage);
return(false);
}
return(true);
}
public async Task <bool> RequestPairDeviceAsync(DeviceInformationPairing pairing)
{
WiFiDirectConnectionParameters connectionParams = new WiFiDirectConnectionParameters();
short?groupOwnerIntent = 1;
if (groupOwnerIntent.HasValue)
{
connectionParams.GroupOwnerIntent = groupOwnerIntent.Value;
}
DevicePairingKinds devicePairingKinds = DevicePairingKinds.None;
//if (_supportedConfigMethods.Count > 0)
//{
// // If specific configuration methods were added, then use them.
// foreach (var configMethod in _supportedConfigMethods)
// {
// connectionParams.PreferenceOrderedConfigurationMethods.Add(configMethod);
// devicePairingKinds |= WiFiDirectConnectionParameters.GetDevicePairingKinds(configMethod);
// }
//}
//else
{
// If specific configuration methods were not added, then we'll use these pairing kinds.
devicePairingKinds = DevicePairingKinds.ConfirmOnly;// | DevicePairingKinds.DisplayPin | DevicePairingKinds.ProvidePin;
}
connectionParams.PreferredPairingProcedure = WiFiDirectPairingProcedure.GroupOwnerNegotiation;
DeviceInformationCustomPairing customPairing = pairing.Custom;
customPairing.PairingRequested += OnPairingRequested;
DevicePairingResult result = await customPairing.PairAsync(devicePairingKinds, DevicePairingProtectionLevel.Default, connectionParams);
if (result.Status != DevicePairingResultStatus.Paired)
{
StatusBlock.Text = $"PairAsync failed, Status: {result.Status}";
return(false);
}
return(true);
}
public async Task<bool> RequestPairDeviceAsync(DeviceInformationPairing pairing)
{
WiFiDirectConnectionParameters connectionParams = new WiFiDirectConnectionParameters();
short? groupOwnerIntent = Utils.GetSelectedItemTag<short?>(cmbGOIntent);
if (groupOwnerIntent.HasValue)
{
connectionParams.GroupOwnerIntent = groupOwnerIntent.Value;
}
DevicePairingKinds devicePairingKinds = DevicePairingKinds.None;
if (_supportedConfigMethods.Count > 0)
{
// If specific configuration methods were added, then use them.
foreach (var configMethod in _supportedConfigMethods)
{
connectionParams.PreferenceOrderedConfigurationMethods.Add(configMethod);
devicePairingKinds |= WiFiDirectConnectionParameters.GetDevicePairingKinds(configMethod);
}
}
else
{
// If specific configuration methods were not added, then we'll use these pairing kinds.
devicePairingKinds = DevicePairingKinds.ConfirmOnly | DevicePairingKinds.DisplayPin | DevicePairingKinds.ProvidePin;
}
connectionParams.PreferredPairingProcedure = Utils.GetSelectedItemTag<WiFiDirectPairingProcedure>(cmbPreferredPairingProcedure);
DeviceInformationCustomPairing customPairing = pairing.Custom;
customPairing.PairingRequested += OnPairingRequested;
DevicePairingResult result = await customPairing.PairAsync(devicePairingKinds, DevicePairingProtectionLevel.Default, connectionParams);
if (result.Status != DevicePairingResultStatus.Paired)
{
rootPage.NotifyUser($"PairAsync failed, Status: {result.Status}", NotifyType.ErrorMessage);
return false;
}
return true;
}
void OnConnectionRequested(WiFiDirectConnectionListener sender, WiFiDirectConnectionRequestedEventArgs connectionEventArgs)
{
WiFiDirectDevice wfdDevice;
try {
var connectionRequest = connectionEventArgs.GetConnectionRequest();
WiFiDirectConnectionParameters connectionParams = new WiFiDirectConnectionParameters();
connectionParams.GroupOwnerIntent = 15;
wfdDevice = WiFiDirectDevice.FromIdAsync(connectionRequest.DeviceInformation.Id, connectionParams).AsTask().Result;
// Register for the ConnectionStatusChanged event handler
wfdDevice.ConnectionStatusChanged += OnConnectionStatusChanged;
mConnected[extractMAC(wfdDevice.DeviceId)] = wfdDevice;
mGroupOwner = true;
} catch (Exception ex) {
Debug.WriteLine("Connect operation threw an exception: " + ex.Message);
wfdDevice = null;
}
if (wfdDevice != null)
{
OnConnectionStatusChanged(wfdDevice, null);
}
}
private async void OnConnectionRequested(WiFiDirectConnectionListener sender, WiFiDirectConnectionRequestedEventArgs connectionEventArgs)
{
try
{
var connectionRequest = connectionEventArgs.GetConnectionRequest();
var tcs = new TaskCompletionSource<bool>();
var dialogTask = tcs.Task;
var messageDialog = new MessageDialog("Connection request received from " + connectionRequest.DeviceInformation.Name, "Connection Request");
// Add commands and set their callbacks; both buttons use the same callback function instead of inline event handlers
messageDialog.Commands.Add(new UICommand("Accept", null, 0));
messageDialog.Commands.Add(new UICommand("Decline", null, 1));
// Set the command that will be invoked by default
messageDialog.DefaultCommandIndex = 1;
// Set the command to be invoked when escape is pressed
messageDialog.CancelCommandIndex = 1;
await Dispatcher.RunAsync(CoreDispatcherPriority.High, async () =>
{
// Show the message dialog
var commandChosen = await messageDialog.ShowAsync();
tcs.SetResult((commandChosen.Label == "Accept") ? true : false);
});
var fProceed = await dialogTask;
if (fProceed == true)
{
var tcsWiFiDirectDevice = new TaskCompletionSource<WiFiDirectDevice>();
var wfdDeviceTask = tcsWiFiDirectDevice.Task;
await Dispatcher.RunAsync(CoreDispatcherPriority.High, async () =>
{
try
{
rootPage.NotifyUser("Connecting to " + connectionRequest.DeviceInformation.Name + "...", NotifyType.StatusMessage);
WiFiDirectConnectionParameters connectionParams = new WiFiDirectConnectionParameters();
connectionParams.GroupOwnerIntent = Convert.ToInt16(txtGOIntent.Text);
// IMPORTANT: FromIdAsync needs to be called from the UI thread
tcsWiFiDirectDevice.SetResult(await WiFiDirectDevice.FromIdAsync(connectionRequest.DeviceInformation.Id, connectionParams));
}
catch (Exception ex)
{
rootPage.NotifyUser("FromIdAsync task threw an exception: " + ex.ToString(), NotifyType.ErrorMessage);
}
});
WiFiDirectDevice wfdDevice = await wfdDeviceTask;
// Register for the ConnectionStatusChanged event handler
wfdDevice.ConnectionStatusChanged += OnConnectionStatusChanged;
await Dispatcher.RunAsync(CoreDispatcherPriority.High, () =>
{
ConnectedDevice connectedDevice = new ConnectedDevice("Waiting for client to connect...", wfdDevice, null);
_connectedDevices.Add(connectedDevice);
});
var EndpointPairs = wfdDevice.GetConnectionEndpointPairs();
_listenerSocket = null;
_listenerSocket = new StreamSocketListener();
_listenerSocket.ConnectionReceived += OnSocketConnectionReceived;
await _listenerSocket.BindEndpointAsync(EndpointPairs[0].LocalHostName, Globals.strServerPort);
rootPage.NotifyUserFromBackground("Devices connected on L2, listening on IP Address: " + EndpointPairs[0].LocalHostName.ToString() +
" Port: " + Globals.strServerPort, NotifyType.StatusMessage);
}
else
{
// Decline the connection request
rootPage.NotifyUserFromBackground("Connection request from " + connectionRequest.DeviceInformation.Name + " was declined", NotifyType.ErrorMessage);
connectionRequest.Dispose();
}
}
catch (Exception ex)
{
rootPage.NotifyUserFromBackground("Connect operation threw an exception: " + ex.Message, NotifyType.ErrorMessage);
}
}
private async void btnFromId_Click(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
if (lvDiscoveredDevices.SelectedItems.Count == 0)
{
rootPage.NotifyUser("No device selected, please select atleast one.", NotifyType.ErrorMessage);
return;
}
var selectedDevices = lvDiscoveredDevices.SelectedItems;
foreach (DiscoveredDevice discoveredDevice in selectedDevices)
{
rootPage.NotifyUser("Connecting to " + discoveredDevice.DeviceInfo.Name + "...", NotifyType.StatusMessage);
try
{
WiFiDirectConnectionParameters connectionParams = new WiFiDirectConnectionParameters();
connectionParams.GroupOwnerIntent = Convert.ToInt16(txtGOIntent.Text);
_cancellationTokenSource = new CancellationTokenSource();
// IMPORTANT: FromIdAsync needs to be called from the UI thread
var wfdDevice = await WiFiDirectDevice.FromIdAsync(discoveredDevice.DeviceInfo.Id, connectionParams).AsTask(_cancellationTokenSource.Token);
// Register for the ConnectionStatusChanged event handler
wfdDevice.ConnectionStatusChanged += OnConnectionStatusChanged;
var endpointPairs = wfdDevice.GetConnectionEndpointPairs();
rootPage.NotifyUser("Devices connected on L2 layer, connecting to IP Address: " + endpointPairs[0].RemoteHostName +
" Port: " + Globals.strServerPort, NotifyType.StatusMessage);
// Wait for server to start listening on a socket
await Task.Delay(2000);
// Connect to Advertiser on L4 layer
StreamSocket clientSocket = new StreamSocket();
await clientSocket.ConnectAsync(endpointPairs[0].RemoteHostName, Globals.strServerPort);
SocketReaderWriter socketRW = new SocketReaderWriter(clientSocket, rootPage);
string sessionId = "Session: " + Path.GetRandomFileName();
ConnectedDevice connectedDevice = new ConnectedDevice(sessionId, wfdDevice, socketRW);
_connectedDevices.Add(connectedDevice);
socketRW.ReadMessage();
socketRW.WriteMessage(sessionId);
rootPage.NotifyUser("Connected with remote side on L4 layer", NotifyType.StatusMessage);
}
catch (TaskCanceledException)
{
rootPage.NotifyUser("FromIdAsync was canceled by user", NotifyType.ErrorMessage);
}
catch (Exception ex)
{
rootPage.NotifyUser("Connect operation threw an exception: " + ex.Message, NotifyType.ErrorMessage);
}
_cancellationTokenSource = null;
}
}
private async void OnConnectionRequested(WiFiDirectConnectionListener sender, WiFiDirectConnectionRequestedEventArgs connectionEventArgs)
{
try
{
var connectionRequest = connectionEventArgs.GetConnectionRequest();
var tcs = new TaskCompletionSource <bool>();
var dialogTask = tcs.Task;
var messageDialog = new MessageDialog("Connection request received from " + connectionRequest.DeviceInformation.Name, "Connection Request");
// Add commands and set their callbacks; both buttons use the same callback function instead of inline event handlers
messageDialog.Commands.Add(new UICommand("Accept", null, 0));
messageDialog.Commands.Add(new UICommand("Decline", null, 1));
// Set the command that will be invoked by default
messageDialog.DefaultCommandIndex = 1;
// Set the command to be invoked when escape is pressed
messageDialog.CancelCommandIndex = 1;
await Dispatcher.RunAsync(CoreDispatcherPriority.High, async() =>
{
// Show the message dialog
var commandChosen = await messageDialog.ShowAsync();
tcs.SetResult((commandChosen.Label == "Accept") ? true : false);
});
var fProceed = await dialogTask;
if (fProceed == true)
{
var tcsWiFiDirectDevice = new TaskCompletionSource <WiFiDirectDevice>();
var wfdDeviceTask = tcsWiFiDirectDevice.Task;
await Dispatcher.RunAsync(CoreDispatcherPriority.High, async() =>
{
try
{
rootPage.NotifyUser("Connecting to " + connectionRequest.DeviceInformation.Name + "...", NotifyType.StatusMessage);
WiFiDirectConnectionParameters connectionParams = new WiFiDirectConnectionParameters();
connectionParams.GroupOwnerIntent = Convert.ToInt16(txtGOIntent.Text);
// IMPORTANT: FromIdAsync needs to be called from the UI thread
tcsWiFiDirectDevice.SetResult(await WiFiDirectDevice.FromIdAsync(connectionRequest.DeviceInformation.Id, connectionParams));
}
catch (Exception ex)
{
rootPage.NotifyUser("FromIdAsync task threw an exception: " + ex.ToString(), NotifyType.ErrorMessage);
}
});
WiFiDirectDevice wfdDevice = await wfdDeviceTask;
// Register for the ConnectionStatusChanged event handler
wfdDevice.ConnectionStatusChanged += OnConnectionStatusChanged;
await Dispatcher.RunAsync(CoreDispatcherPriority.High, () =>
{
ConnectedDevice connectedDevice = new ConnectedDevice("Waiting for client to connect...", wfdDevice, null);
_connectedDevices.Add(connectedDevice);
});
var EndpointPairs = wfdDevice.GetConnectionEndpointPairs();
_listenerSocket = null;
_listenerSocket = new StreamSocketListener();
_listenerSocket.ConnectionReceived += OnSocketConnectionReceived;
await _listenerSocket.BindEndpointAsync(EndpointPairs[0].LocalHostName, Globals.strServerPort);
rootPage.NotifyUserFromBackground("Devices connected on L2, listening on IP Address: " + EndpointPairs[0].LocalHostName.ToString() +
" Port: " + Globals.strServerPort, NotifyType.StatusMessage);
}
else
{
// Decline the connection request
rootPage.NotifyUserFromBackground("Connection request from " + connectionRequest.DeviceInformation.Name + " was declined", NotifyType.ErrorMessage);
connectionRequest.Dispose();
}
}
catch (Exception ex)
{
rootPage.NotifyUserFromBackground("Connect operation threw an exception: " + ex.Message, NotifyType.ErrorMessage);
}
}
private async void btnFromId_Click(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
if (lvDiscoveredDevices.SelectedItems.Count == 0)
{
rootPage.NotifyUser("No device selected, please select atleast one.", NotifyType.ErrorMessage);
return;
}
var selectedDevices = lvDiscoveredDevices.SelectedItems;
foreach (DiscoveredDevice discoveredDevice in selectedDevices)
{
rootPage.NotifyUser("Connecting to " + discoveredDevice.DeviceInfo.Name + "...", NotifyType.StatusMessage);
try
{
WiFiDirectConnectionParameters connectionParams = new WiFiDirectConnectionParameters();
connectionParams.GroupOwnerIntent = Convert.ToInt16(txtGOIntent.Text);
_cancellationTokenSource = new CancellationTokenSource();
// IMPORTANT: FromIdAsync needs to be called from the UI thread
var wfdDevice = await WiFiDirectDevice.FromIdAsync(discoveredDevice.DeviceInfo.Id, connectionParams).AsTask(_cancellationTokenSource.Token);
// Register for the ConnectionStatusChanged event handler
wfdDevice.ConnectionStatusChanged += OnConnectionStatusChanged;
var endpointPairs = wfdDevice.GetConnectionEndpointPairs();
rootPage.NotifyUser("Devices connected on L2 layer, connecting to IP Address: " + endpointPairs[0].RemoteHostName +
" Port: " + Globals.strServerPort, NotifyType.StatusMessage);
// Wait for server to start listening on a socket
await Task.Delay(2000);
// Connect to Advertiser on L4 layer
StreamSocket clientSocket = new StreamSocket();
await clientSocket.ConnectAsync(endpointPairs[0].RemoteHostName, Globals.strServerPort);
SocketReaderWriter socketRW = new SocketReaderWriter(clientSocket, rootPage);
string sessionId = "Session: " + Path.GetRandomFileName();
ConnectedDevice connectedDevice = new ConnectedDevice(sessionId, wfdDevice, socketRW);
_connectedDevices.Add(connectedDevice);
socketRW.ReadMessage();
socketRW.WriteMessage(sessionId);
rootPage.NotifyUser("Connected with remote side on L4 layer", NotifyType.StatusMessage);
}
catch (TaskCanceledException)
{
rootPage.NotifyUser("FromIdAsync was canceled by user", NotifyType.ErrorMessage);
}
catch (Exception ex)
{
rootPage.NotifyUser("Connect operation threw an exception: " + ex.Message, NotifyType.ErrorMessage);
}
_cancellationTokenSource = null;
}
}