答案 0 :(得分:1)
根据this SO问题,您可以创建类似于此的自定义渲染器:
[assembly: ExportRenderer(typeof(NavigationPage), typeof(CustomNavigationPage))]
namespace CustomNavigationPage.iOS
{
public class CustomNavigationPage : NavigationRenderer
{
protected override void OnElementChanged(VisualElementChangedEventArgs e)
{
base.OnElementChanged(e);
NavigationBar.SetBackgroundImage(new UIKit.UIImage(), UIKit.UIBarMetrics.Default);
NavigationBar.ShadowImage = new UIKit.UIImage();
}
}
}