Tizen Core Event

A feature to deliver events to specific tasks, which can be used to wait for completion of tasks or send notifications to other threads. This page covers creating events, registering event handlers with them, attaching them to the main loop, and receiving events.

Preparation

To use the methods and properties of the Tizen.Core.Event and Tizen.Core.Task classes, include the Tizen.Core namespace in your application:

                
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using Tizen.Core;

Managing Tizen Core events

Creating an event object and registering an event handler

Here’s an example of creating an event and registering an event handler:

                
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var coreEvent = new Event();
coreEvent.EventReceived += (s, e) => {
    Log.Debug(LogTag, "Received Event. Message = " + (string)e.Data);
};

An event handler has been added to the created event. When you no longer need Tizen.Core.Event, call Tizen.Core.Event.Dispose() to release it.

Registering the event with the task

This example uses Tizen.Core.Task.AddEvent() to register an event with Tizen Core:

                
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var task = TizenCore.FindFromCurrentThread();
task.AddEvent(coreEvent);

When you no longer need the registered Tizen.Core.Event, call Tizen.Core.Task.RemoveEvent() to release it.

Creating an event object and delivering it to the task

This example demonstrates creating an event object and delivering it to the task:

                
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var coreEvent = new Event();
coreEvent.EventReceived += (s, e) => {
    Log.Debug(LogTag, "Received Event. Message = " + (string)e.Data);
};

var task = TizenCore.FindFromCurrentThread();
if (!task.Running)
{
    task.Run();
}
task.AddEvent(coreEvent);

int id = 1;
string message = "Event Message";
using (var eventObject = new EventObject(id++, message))
{
    task.EmitEvent(eventObject);
}

If you want to deliver Tizen.Core.EventObject only to a specific Tizen.Core.Event, use Tizen.Core.Event.Emit() method instead.

Related information

• Dependencies
  • Tizen 9.0