B(C) - 25

ErişebilirlikTestPage.cs

public class ErişebilirlikTestPage : ContentPage
{
    public ErişebilirlikTestPage()
    {
        Label testLabel = new Label
        {
            Text = "FontSize 20" + Environment.NewLine + "20 karakter arasında",
            FontSize = 20,
            HorizontalTextAlignment = TextAlignment.Center,
            HorizontalOptions = LayoutOptions.Center,
            VerticalOptions = LayoutOptions.CenterAndExpand
        };
        Label displayLabel = new Label
        {
            HorizontalOptions = LayoutOptions.Center,
            VerticalOptions = LayoutOptions.CenterAndExpand
        };
        testLabel.SizeChanged += (sender, args) =>
        {
            displayLabel.Text = String.Format("{0:F0} \u00D7 {1:F0}", testLabel.Width,
            testLabel.Height);
        };
        Content = new StackLayout
        {
            Children =
         {
         testLabel,
         displayLabel
         }
        };
    }
}