private static async Task <int?> ShowInternal(object uiViewObject, string title, UIActionSheetStyle style, params string[] options)
{
var signal = new ManualResetEventSlim();
int?retval = null;
var alertController = UIAlertController.Create(title ?? string.Empty, string.Empty, UIAlertControllerStyle.ActionSheet);
if (uiViewObject != null)
{
alertController.PopoverPresentationController?.SetPresentationAnchor(uiViewObject);
}
for (int i = 0; i < options.Length; i++)
{
var option = options[i];
var index = i;
alertController.AddAction(
UIAlertAction.Create(option, UIAlertActionStyle.Default,
(x) => {
retval = index;
signal.Set();
}
)
);
}
alertController.AddAction(
UIAlertAction.Create(
"Cancel",
UIAlertActionStyle.Cancel,
(x) => {
retval = null;
signal.Set();
}
)
);
Tools.iOSTool.GetTopMostController().PresentViewController(alertController, true, null);
await Task.Run(() => signal.Wait());
return(retval);
}
public static Task <int?> Show(object userInterfaceObject, string title, UIActionSheetStyle style, params string[] options)
{
return(ShowInternal(userInterfaceObject, title, style, options));
}
public static Task <int?> ShowFromButtonItem(UIBarButtonItem item, bool animated, string title, UIActionSheetStyle style, params string[] options)
{
return(ShowInternal(item, title, style, options));
}
public static Task <int?> ShowFromToolbar(UIToolbar toolbar, string title, UIActionSheetStyle style, params string[] options)
{
return(ShowInternal(toolbar, title, style, options));
}
public static Task <int?> ShowInCell(UIView view, string title, UIActionSheetStyle style, params string[] options)
{
return(ShowInternal(view, title, style, options));
}
