更正 Xamarin 框架的阴影 ios

Correct shadows for the Xamarin frame ios

我为框架元素制作了一个自定义渲染阴影 - 一切都很好,结果证明阴影适合我,但是由于使用这个自定义渲染,我对 RadioButton 元素产生了不好的影响,我该如何编辑它渲染使单选按钮元素正常? sample image

 /// <summary>
    /// Renderer to update all frames with better shadows matching material design standards
    /// </summary>

    public class MaterialFrameRenderer : FrameRenderer
    {
        public override void Draw(CGRect rect)
        {
            base.Draw(rect);

            // Update shadow to match better material design standards of elevation
            Layer.ShadowRadius = Element.CornerRadius;
            Layer.ShadowColor = UIColor.Gray.CGColor;
            Layer.ShadowOffset = new CGSize(2, 2);
            Layer.ShadowOpacity = 0.40f;
            Layer.ShadowPath = UIBezierPath.FromRect(Layer.Bounds).CGPath;
            Layer.MasksToBounds = false;
        }
    }

RadioButton 渲染似乎出了问题,我们甚至无法在 iOS 上为 RadioButton 创建自定义渲染器,检查 https://forums.xamarin.com/discussion/comment/430069#Comment_430069

我强烈建议您使用 Xamarin.Forms.InputKit 而不是 Xamarin RadioButton 。

挺好看的

xmlns:input="clr-namespace:Plugin.InputKit.Shared.Controls;assembly=Plugin.InputKit"

  <Frame  Margin="100" CornerRadius="20"  >

            <input:RadioButtonGroupView>
                <input:RadioButton Text="Option 1" />
                <input:RadioButton Text="Option 2" />
                <input:RadioButton Text="Option 3" />
                <input:RadioButton Text="Option 4" />
            </input:RadioButtonGroupView>
        </Frame>
    </ContentPage.Content>