private async Task <double> OpenSliderInputAlertDialog()
{
// create the TextInputView
var inputView = new SlidableInputView(
"How much would you rate it?", 0, 10,
"Save", "Cancel", "Ops! You can't leave with an empty value!");
// create the Transparent Popup Page
// of type string since we need a string return
var popup = new InputAlertDialogBase <double>(inputView);
// subscribe to the TextInputView's Button click event
inputView.SaveButtonEventHandler +=
(sender, obj) =>
{
if (((SlidableInputView)sender).SliderInputResult > 0)
{
((SlidableInputView)sender).IsValidationLabelVisible = false;
popup.PageClosedTaskCompletionSource.SetResult(((SlidableInputView)sender).SliderInputResult);
}
else
{
((SlidableInputView)sender).IsValidationLabelVisible = true;
}
};
// subscribe to the TextInputView's Button click event
inputView.CancelButtonEventHandler +=
(sender, obj) =>
{
popup.PageClosedTaskCompletionSource.SetResult(0);
};
// Push the page to Navigation Stack
await PopupNavigation.PushAsync(popup);
// await for the user to enter the text input
var result = await popup.PageClosedTask;
// Pop the page from Navigation Stack
await PopupNavigation.PopAsync();
// return user inserted text value
return(result);
}
public async Task <double> OpenSliderInputAlertDialog(string titleText, double minValue, double maxValue, string saveButtonText,
string cancelButtonText, string validationText)
{
// create the TextInputView
var inputView = new SlidableInputView(
"How much would you rate it?", 0, 10,
"Save", "Cancel", "Ops! You can't leave with an empty value!");
// create the Transparent Popup Page
// of type string since we need a string return
var popup = new InputAlertDialogBase <double>(inputView);
// subscribe to the TextInputView's Button click event
inputView.SaveButtonEventHandler +=
(sender, obj) =>
{
if (((SlidableInputView)sender).SliderInputResult > 0)
{
((SlidableInputView)sender).IsValidationLabelVisible = false;
popup.PageClosedTaskCompletionSource.SetResult(((SlidableInputView)sender).SliderInputResult);
}
else
{
((SlidableInputView)sender).IsValidationLabelVisible = true;
}
};
// subscribe to the TextInputView's Button click event
inputView.CancelButtonEventHandler +=
(sender, obj) =>
{
popup.PageClosedTaskCompletionSource.SetResult(0);
};
// return user inserted text value
return(await Navigate(popup));
}