XF 彩色矩形块

<?xml version="1.0" encoding="utf-8" ?>

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"

             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"

             xmlns:local="clr-namespace:App17"

             x:Class="App17.MainPage">

<BoxView x:Name="myBoxView" WidthRequest="150" HeightRequest="150" HorizontalOptions="Center" VerticalOptions="Center"></BoxView>

</ContentPage>

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using Xamarin.Forms;

namespace App17

{

    public partial class MainPage : ContentPage

    {

        public MainPage()

        {

            InitializeComponent();

            myBoxView.Color = Color.FromHex("FF0000");

        }

    }

}