Embedded fonts and font icons

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Xamarin

hello
i am facing Embedded Font Problem in xamarin form.
once i creating a code and set the build action Embedded Action in property.
and run the application so image is not displaying .i am sending my codes please check why image is not displaying
my class name is FontIcon.cs
please check

What I have tried:

in

assembly:ExportFont

[assembly:ExportFont("MyMeterialFile.ttf", Alias = "IconFont")]

<StackLayout VerticalOptions="CenterAndExpand">
          <Image VerticalOptions="CenterAndExpand">
              <Image.Source>
                  <FontImageSource Color="Black" Size="88" Glyph="{x:Static local:IconFont.AccessPoint}" FontFamily="IconFont"></FontImageSource>
              </Image.Source>
          </Image>
      </StackLayout>