C# Avalonia 10- ResourceFromLibrary

创建一个ResourceDictionary

<ResourceDictionary xmlns="https://github.com/avaloniaui"
                    xmlns:local="using:AvaloniaUI.Demos.Book._10"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <!-- Add Resources Here -->
    <ImageBrush       
        x:Key="{x:Static local:CustomResources.SadTileBrushKey}"
        Source="avares://AvaloniaUI/Resources/Images/sadface.jpg"
        TileMode="Tile"
        DestinationRect="0 0 32 32"
        Opacity="0.3" />
</ResourceDictionary>

对应的CustomResources类代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AvaloniaUI.Demos.Book._10
{
    public class CustomResources
    {
        public static readonly string SadTileBrushKey = "SadTileBrush";
    }
}

ResourceFromLibrary.axaml代码

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        Height="300" Width="300"
        x:Class="AvaloniaUI.ResourceFromLibrary"
         xmlns:local="using:AvaloniaUI.Demos.Book._10"
        Title="ResourceFromLibrary">
    <Window.Resources>
        <ImageBrush x:Key="TileBrush"
                    Source="avares://AvaloniaUI/Resources/Images/happyface.jpg"            
                    TileMode="Tile"
                    DestinationRect="0 0 32 32"
                    Opacity="0.3" />
    </Window.Resources>

    <StackPanel Margin="5">
        <Button Background="{StaticResource TileBrush}" Padding="5"
                    FontWeight="Bold" FontSize="14" Margin="5">
            A Resource From This Assembly</Button>

        <Button Background="{DynamicResource {x:Static local:CustomResources.SadTileBrushKey}}"
            Padding="5" Margin="5"
            FontWeight="Bold" FontSize="14">
            A Resource From ResourceLibrary
        </Button>
    </StackPanel>
</Window>

ResourceFromLibrary.axaml.cs代码 - 动态加载资源

using Avalonia;
using Avalonia.Controls;
using Avalonia.Markup.Xaml;
using System;

namespace AvaloniaUI;

public partial class ResourceFromLibrary : Window
{
    public ResourceFromLibrary()
    {
        InitializeComponent();
        this.Resources.MergedDictionaries.Add(this.LoadGeneric());
    }
    public ResourceDictionary LoadGeneric()
    {
        return (ResourceDictionary)AvaloniaXamlLoader.Load(
            new Uri("avares://AvaloniaUI/Resources/Themes/generic.axaml"));
    }
}

运行效果