/// <summary>
/// Executes the specified delegate asynchronously with the specified arguments on the thread that the Dispatcher was created on.
/// </summary>
/// <param name="action">The action.</param>
/// <param name="onlyBeginInvokeWhenNoAccess">If set to <c>true</c>, the action will be executed directly if possible. Otherwise,
/// <c>Dispatcher.BeginInvoke</c> will be used.</param>
public virtual void BeginInvoke(Action action, bool onlyBeginInvokeWhenNoAccess = true)
{
Argument.IsNotNull("action", action);
#if XAMARIN_FORMS
var synchronizationContext = SynchronizationContext.Current;
if (synchronizationContext != null)
{
synchronizationContext.Post(state => action(), null);
}
else
{
action();
}
#elif ANDROID
_handler.Post(action);
#elif IOS
DispatchQueue.MainQueue.DispatchAsync(() => action());
#else
var dispatcher = CurrentDispatcher;
DispatcherExtensions.BeginInvoke(dispatcher, action, onlyBeginInvokeWhenNoAccess);
#endif
}
/// <summary>
/// Executes the specified delegate asynchronously with the specified arguments on the thread that the Dispatcher was created on.
/// </summary>
/// <param name="method">The method.</param>
/// <param name="args">The arguments to pass into the method.</param>
/// <returns>The task representing the action.</returns>
public virtual Task InvokeAsync(Delegate method, params object[] args)
{
var dispatcher = CurrentDispatcher;
return(DispatcherExtensions.InvokeAsync(dispatcher, method, args));
}
/// <summary>
/// Executes the specified asynchronous operation on the thread that the Dispatcher was created on with the ability to return value with supporting of CancellationToken
/// </summary>
/// <typeparam name="T">The type of the result of the asynchronous operation</typeparam>
/// <param name="funcAsync">The asynchronous operation which returns a value and supports cancelling</param>
/// <param name="cancellationToken">The cancellation token</param>
/// <returns>The task representing the asynchronous operation with the returning value</returns>
public virtual Task <T> InvokeTaskAsync <T>(Func <CancellationToken, Task <T> > funcAsync, CancellationToken cancellationToken)
{
var dispatcher = CurrentDispatcher;
return(DispatcherExtensions.InvokeAsync(dispatcher, funcAsync, cancellationToken));
}
/// <summary>
/// Executes the specified asynchronous operation on the thread that the Dispatcher was created on with the ability to return value.
/// </summary>
/// <typeparam name="T">The type of the result of the asynchronous operation</typeparam>
/// <param name="funcAsync">The asynchronous operation which returns a value</param>
/// <returns>The task representing the asynchronous operation with the returning value</returns>
public virtual Task <T> InvokeTaskAsync <T>(Func <Task <T> > funcAsync)
{
var dispatcher = CurrentDispatcher;
return(DispatcherExtensions.InvokeAsync(dispatcher, funcAsync));
}
/// <summary>
/// Executes the specified asynchronous operation on the thread that the Dispatcher was created on
/// </summary>
/// <param name="actionAsync">The asynchronous operation without returning a value</param>
/// <returns>The task representing the asynchronous operation</returns>
public virtual Task InvokeTaskAsync(Func <Task> actionAsync)
{
var dispatcher = CurrentDispatcher;
return(DispatcherExtensions.InvokeAsync(dispatcher, actionAsync));
}
/// <summary>
/// Executes the specified asynchronous operation on the thread that the Dispatcher was created on with supporting of CancellationToken
/// </summary>
/// <param name="actionAsync">The asynchronous operation without returning a value</param>
/// <param name="cancellationToken">The cancellation token</param>
/// <returns>The task representing the asynchronous operation</returns>
public Task InvokeTaskAsync(Func <CancellationToken, Task> actionAsync, CancellationToken cancellationToken)
{
var dispatcher = CurrentDispatcher;
return(DispatcherExtensions.InvokeAsync(dispatcher, actionAsync, cancellationToken));
}
