在我的Xamarin.forms项目中使用.axml文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello from .axml!" />
</LinearLayout>

using Xamarin.Forms;

public class MyPage : ContentPage
{
    public MyPage()
    {
        var layout = new StackLayout();

        if (Device.RuntimePlatform == Device.Android)
        {
            var androidLayout = new Android.Views.View(Context);
            androidLayout.LayoutParameters = new Android.Views.ViewGroup.LayoutParams(
                Android.Views.ViewGroup.LayoutParams.MatchParent,
                Android.Views.ViewGroup.LayoutParams.MatchParent);

            // Load the .axml layout
            var inflater = Android.Views.LayoutInflater.From(Context);
            androidLayout = inflater.Inflate(Resource.Layout.MyLayout, null);

            layout.Children.Add(new Xamarin.Forms.Platform.Android.ViewWrapper(androidLayout));
        }
        else
        {
            layout.Children.Add(new Label { Text = "Hello from Xamarin.Forms!" });
        }

        Content = layout;
    }
}

using Xamarin.Forms;

public class MyCustomView : View
{
}

using Android.Content;
using Android.Views;
using Xamarin.Forms;
using Xamarin.Forms.Platform.Android;

[assembly: ExportRenderer(typeof(MyCustomView), typeof(MyCustomViewRenderer))]
namespace YourNamespace.Droid
{
    public class MyCustomViewRenderer : ViewRenderer<MyCustomView, View>
    {
        public MyCustomViewRenderer(Context context) : base(context)
        {
        }

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

            if (Control == null)
            {
                var inflater = LayoutInflater.From(Context);
                var view = inflater.Inflate(Resource.Layout.MyLayout, this, false);
                SetNativeControl(view);
            }
        }
    }
}

public class MyPage : ContentPage
{
    public MyPage()
    {
        Content = new MyCustomView();
    }
}