无法在Xamarin窗体中将多色图像添加到TabbedPage导航栏

using Xamarin.Forms;

namespace YourNamespace
{
    public class CustomTabbedPage : TabbedPage
    {
        // 添加自定义属性或方法
    }
}

using Android.Content;
using Android.Graphics.Drawables;
using YourNamespace;
using YourNamespace.Droid;
using Xamarin.Forms;
using Xamarin.Forms.Platform.Android;

[assembly: ExportRenderer(typeof(CustomTabbedPage), typeof(CustomTabbedPageRenderer))]
namespace YourNamespace.Droid
{
    public class CustomTabbedPageRenderer : TabbedRenderer
    {
        public CustomTabbedPageRenderer(Context context) : base(context)
        {
        }

        protected override void OnElementChanged(ElementChangedEventArgs<TabbedPage> e)
        {
            base.OnElementChanged(e);

            if (e.NewElement != null)
            {
                // 设置导航栏的外观
                var actionBar = ((MainActivity)Context).SupportActionBar;
                actionBar.SetBackgroundDrawable(new ColorDrawable(Android.Graphics.Color.Red));
                actionBar.SetTitle("Your App Title");
            }
        }
    }
}

using Xamarin.Forms;

namespace YourNamespace
{
    public class CustomTabbedPage : TabbedPage
    {
        public CustomTabbedPage()
        {
            // 创建选项卡并设置图标
            var tab1 = new ContentPage { Title = "Tab 1", IconImageSource = "tab1_icon.png" };
            var tab2 = new ContentPage { Title = "Tab 2", IconImageSource = "tab2_icon.png" };
            var tab3 = new ContentPage { Title = "Tab 3", IconImageSource = "tab3_icon.png" };

            // 添加选项卡到TabbedPage
            Children.Add(tab1);
            Children.Add(tab2);
            Children.Add(tab3);
        }
    }
}