删除Xamarin.forms中的导航栏阴影/线条

如何在Xamarin.forms中删除导航栏阴影和内容页线条。

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是否可以在不渲染的情况下执行此操作。

仅针对Xamarin表单，iOS。将此添加到AppDelegate

 UINavigationBar.Appearance.ShadowImage = new UIImage(); //No line under the navigation

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对于Xamarin表单，iOS。将此添加到AppDelegate

 UINavigationBar.Appearance.ShadowImage = new UIImage(); //No line under the navigation

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在xamarin ios项目中添加此渲染类

[assembly: ExportRenderer(typeof(NavigationPage), typeof(CustomNavigationRenderer))]
namespace YOUR_IOS_NAMESPACE
{
    public class CustomNavigationRenderer : NavigationRenderer
    {
        public override void ViewDidLoad()
        {
            base.ViewDidLoad();
            NavigationBar.ShadowImage = new UIImage(); 
        }
    }
}

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在xamarin ios项目中添加此渲染类

[assembly: ExportRenderer(typeof(NavigationPage), typeof(CustomNavigationRenderer))]
namespace YOUR_IOS_NAMESPACE
{
    public class CustomNavigationRenderer : NavigationRenderer
    {
        public override void ViewDidLoad()
        {
            base.ViewDidLoad();
            NavigationBar.ShadowImage = new UIImage(); 
        }
    }
}