/// <summary>
/// Invokes the specified action on the UI thread asynchronous.
/// </summary>
/// <param name="action">The action.</param>
/// <returns></returns>
/// <exception cref="System.ArgumentNullException">action</exception>
public Task InvokeOnUiAsync(Action action)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
var taskCompletionSource = new TaskCompletionSource <bool>();
UiSynchronizationContext.Post((state) =>
{
try
{
action();
taskCompletionSource.SetResult(true);
}
catch (Exception e)
{
taskCompletionSource.SetException(e);
}
}, null);
return(taskCompletionSource.Task);
}
public virtual void ExecuteOnMainThread(Action action)
{
if (UiSynchronizationContext != null)
{
UiSynchronizationContext.Post(o => action.DynamicInvoke(), null);
}
else
{
action.DynamicInvoke();
}
}
public virtual void ExecuteOnMainThread(Delegate method, object parameter)
{
if (UiSynchronizationContext != null)
{
UiSynchronizationContext.Post(o => method.DynamicInvoke(o), parameter);
}
else
{
method.DynamicInvoke(parameter);
}
}
public virtual void ExecuteOnMainThread(Delegate method)
{
if (UiSynchronizationContext != null)
{
UiSynchronizationContext.Post(o => method.DynamicInvoke(), null);
}
else
{
method.DynamicInvoke();
}
}
public virtual void ExecuteOnMainThread(Action <object> action, object parameter)
{
if (UiSynchronizationContext != null)
{
UiSynchronizationContext.Post(o => action.DynamicInvoke(o), parameter);
}
else
{
action.DynamicInvoke(parameter);
}
}
