public static async Task <string> RegisterBackgroundTask(Guid uuid, string serviceName, string serviceDescriptor)
{
System.Diagnostics.Debug.WriteLine("RegisterBackgroundTask");
try
{
// Applications registering for background trigger must request for permission.
BackgroundAccessStatus backgroundAccessStatus = await BackgroundExecutionManager.RequestAccessAsync();
BackgroundTaskBuilder backgroundTaskBuilder = new BackgroundTaskBuilder();
backgroundTaskBuilder.Name = BackgroundTaskName;
backgroundTaskBuilder.TaskEntryPoint = BackgroundTaskEntryPoint;
RfcommConnectionTrigger trigger = new RfcommConnectionTrigger();
trigger.InboundConnection.LocalServiceId = RfcommServiceId.FromUuid(uuid);
// TODO: helper function to create sdpRecordBlob
trigger.InboundConnection.SdpRecord = getsdpRecordBlob(serviceName, serviceDescriptor);
//backgroundTaskBuilder.SetTrigger(new SystemTrigger(SystemTriggerType.TimeZoneChange, false));
backgroundTaskBuilder.SetTrigger(trigger);
BackgroundTaskRegistration backgroundTaskRegistration = backgroundTaskBuilder.Register();
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("ERROR: Accessing your device failed." + Environment.NewLine + e.Message);
return("ERROR: Accessing your device failed." + Environment.NewLine + e.Message);
}
return(null);
}
public Scenario3_BgChatServer()
{
this.InitializeComponent();
trigger = new RfcommConnectionTrigger();
trigger.InboundConnection.LocalServiceId = RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid);
// TODO: helper function to create sdpRecordBlob
trigger.InboundConnection.SdpRecord = sdpRecordBlob.AsBuffer();
}
public Scenario3_BgChatServer()
{
this.InitializeComponent();
trigger = new RfcommConnectionTrigger();
trigger.InboundConnection.LocalServiceId = RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid);
// TODO: helper function to create sdpRecordBlob
trigger.InboundConnection.SdpRecord = sdpRecordBlob.AsBuffer();
}
public Scenario3_BgChatServer()
{
this.InitializeComponent();
trigger = new RfcommConnectionTrigger();
// Local service Id is the only mandatory field that should be used to filter a known service UUID.
trigger.InboundConnection.LocalServiceId = RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid);
// The SDP record is nice in order to populate optional name and description fields
trigger.InboundConnection.SdpRecord = sdpRecordBlob.AsBuffer();
}
public Scenario3_BgChatServer()
{
this.InitializeComponent();
trigger = new RfcommConnectionTrigger();
// Local service Id is the only mandatory field that should be used to filter a known service UUID.
trigger.InboundConnection.LocalServiceId = RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid);
// The SDP record is nice in order to populate optional name and description fields
trigger.InboundConnection.SdpRecord = sdpRecordBlob.AsBuffer();
}
async void MainPage_Loaded(object sender, RoutedEventArgs e)
{
var promise = await BackgroundExecutionManager.RequestAccessAsync();
if (promise == BackgroundAccessStatus.Denied)
{
var warning = new MessageDialog("Background execution is disabled. Please re-enable to allow this sample to receive messages", "Background Tasks");
await warning.ShowAsync();
}
else
{
bool taskRegistered = false;
foreach (var task in BackgroundTaskRegistration.AllTasks)
{
if (task.Value.Name == TaskName)
{
taskRegistered = true;
break;
}
}
if (!taskRegistered)
{
var trigger = new RfcommConnectionTrigger();
trigger.InboundConnection.LocalServiceId = RfcommServiceId.FromUuid(App.ChatServiceID);
// add a default service name (not localised)
//SdpDataElement rec = new SdpDataElement(new List<SdpDataElement> { new SdpDataElement((ushort)0x100), new SdpDataElement("BluetoothChat Sample") });
trigger.AllowMultipleConnections = true;
var builder = new BackgroundTaskBuilder();
builder.Name = "BluetoothChat";
builder.TaskEntryPoint = "BluetoothChat.BackgroundTask.BluetoothChatBackgroundTask";
builder.SetTrigger(trigger);
try
{
var reg = builder.Register();
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
}
}
}
}
public MainPage()
{
InitializeComponent();
InitializeRadios();
InitializeNotificationListener();
OpenNotificationAppsFile();
_trigger = new RfcommConnectionTrigger();
// Local service Id is the only mandatory field that should be used to filter a known service UUID.
if (_trigger.InboundConnection == null)
{
return;
}
_trigger.InboundConnection.LocalServiceId = RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid);
// The SDP record is nice in order to populate optional name and description fields
_trigger.InboundConnection.SdpRecord = _sdpRecordBlob.AsBuffer();
InitializeSongTitleTimer();
}
public static async Task<string> RegisterBackgroundTask(Guid uuid, string serviceName, string serviceDescriptor)
{
System.Diagnostics.Debug.WriteLine("RegisterBackgroundTask");
try
{
// Applications registering for background trigger must request for permission.
BackgroundAccessStatus backgroundAccessStatus = await BackgroundExecutionManager.RequestAccessAsync();
BackgroundTaskBuilder backgroundTaskBuilder = new BackgroundTaskBuilder();
backgroundTaskBuilder.Name = BackgroundTaskName;
backgroundTaskBuilder.TaskEntryPoint = BackgroundTaskEntryPoint;
RfcommConnectionTrigger trigger = new RfcommConnectionTrigger();
trigger.InboundConnection.LocalServiceId = RfcommServiceId.FromUuid(uuid);
// TODO: helper function to create sdpRecordBlob
trigger.InboundConnection.SdpRecord = getsdpRecordBlob(serviceName, serviceDescriptor);
//backgroundTaskBuilder.SetTrigger(new SystemTrigger(SystemTriggerType.TimeZoneChange, false));
backgroundTaskBuilder.SetTrigger(trigger);
BackgroundTaskRegistration backgroundTaskRegistration = backgroundTaskBuilder.Register();
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("ERROR: Accessing your device failed." + Environment.NewLine + e.Message);
return "ERROR: Accessing your device failed." + Environment.NewLine + e.Message;
}
return null;
}
