create a dialog fragment in iOS Xamarin

README.md

Introduction

Create a simple dialog toast in iOS by Xamarin.

dialog.csharp

/// <summary>
/// Creates the checked toast.
/// </summary>
/// <param name="sec">Sec for dialog appearing time.</param>
/// <param name="action">After disappear, the action what you want to do.</param>
public static void CreateCheckedToast(double sec, Action action = null)
{
    ToastViewController view = new ToastViewController();
    view.View.Frame = new CGRect(new CGPoint(0, 0), new CGSize(view.View.Bounds.Size.Width, view.View.Bounds.Size.Height));
    showInTheCenter(view);
    // Assign the action after the toast is closed.
    Action<NSTimer> handler = (o) => view.eventCloseDialog(action);
    NSTimer.CreateScheduledTimer(sec, handler);

    handler = null;
}

/// <summary>
/// Creates the loading toast.
/// </summary>
public static void CreateLoadingToast()
{
    // Background color
    loadBackground = new UIView();
    loadBackground.Frame = new CGRect(new CGPoint(0, 0), new CGSize(topViewController().View.Frame.Width, topViewController().View.Frame.Height));
    loadBackground.BackgroundColor = UIColor.White;
    loadBackground.Alpha = 0.3f;
    topViewController().View.AddSubview(loadBackground);

    ToastViewController view = new ToastViewController(toastType.LoadIcon);
    view.View.Frame = new CGRect(new CGPoint(0, 0), new CGSize(view.View.Bounds.Size.Width, view.View.Bounds.Size.Height));
    showInTheCenter(view);

    // Assign the action.
    loadCompleteHandler = (o) =>
    {
        view.ivLoadCompleted.Hidden = false;
        view.wvLoading.Hidden = true;
    };
    loadCloseHandler = (o) =>
    {
        view.eventCloseDialog(null);
        // Close the dialog with background.
        UIView.Animate(0.4f, () =>
            {

                loadBackground.Alpha = 0;
            }, () =>
            {
                loadBackground.RemoveFromSuperview();
                loadBackground.Dispose();
                loadBackground = null;
            });
    };
}

/// <summary>
/// Closes the loading toast.
/// </summary>
public static void CloseLoadingToast()
{
    NSTimer.CreateScheduledTimer(0, loadCompleteHandler);
    NSTimer.CreateScheduledTimer(2, loadCloseHandler);

    loadCompleteHandler = null;
    loadCloseHandler = null;
}