private void SetupBackground()
{
if (string.IsNullOrEmpty(ExtendedNavigationPage.GetBarBackground(Element)) && ExtendedNavigationPage.GetGradientColors(Element) == null)
{
SetupBackground(null, ExtendedNavigationPage.GetBarBackgroundOpacity(Element));
}
else
{
if (!string.IsNullOrEmpty(ExtendedNavigationPage.GetBarBackground(Element)))
{
SetupBackground(UIImage.FromBundle(ExtendedNavigationPage.GetBarBackground(Element)), ExtendedNavigationPage.GetBarBackgroundOpacity(Element));
}
else if (ExtendedNavigationPage.GetGradientColors(Element) != null)
{
SetupBackground(CreateGradientBackground(ExtendedNavigationPage.GetGradientColors(Element).Item1, ExtendedNavigationPage.GetGradientColors(Element).Item2, ExtendedNavigationPage.GetGradientDirection(Element)), ExtendedNavigationPage.GetBarBackgroundOpacity(Element));
}
}
}
