/// <summary>
/// change the button style when the user starts to enter a text
/// </summary>
/// <returns></returns>
async Task PlaceholderToTitle()
{
Confirm.HeightRequest = Frame.Height;
if (!IsValid)
{
Confirm.BackgroundColor = ButtonBackgroundColor.WithLuminosity(0.45);
Confirm.TextColor = ViewBackgroundColor;
}
var buttonWidth = CalculateBounds.GetTextWidth(Confirm.Text, Convert.ToSingle(Confirm.FontSize));
#if __IOS__
#endif
#if __ANDROID__
buttonWidth *= DeviceDisplay.MainDisplayInfo.Density;
#endif
Confirm.WidthRequest = buttonWidth;
await Task.WhenAll(Confirm.OpacityTo(0, 1, (o) => Confirm.Opacity = o, 300),
Task.Run(() => floatingLabelEntry.VerticalOptions = LayoutOptions.End));
Confirm.HeightRequest = this.Frame.Height;
Confirm.WidthRequest = buttonWidth;
}
/// <summary>
/// set the button style to the correct validation status
/// </summary>
private void UpdateValidation()
{
if (IsValid)
{
Confirm.BackgroundColor = ButtonBackgroundColor;
Confirm.TextColor = TextColor;
}
else
{
Confirm.BackgroundColor = ButtonBackgroundColor.WithLuminosity(0.45);
Confirm.TextColor = ViewBackgroundColor;
}
}