打包我的 WINUI3 应用程序时图像/文件不显示

Question

我有一个 WINUI 3 应用程序，我在其中添加了多个我自己的文本文件/照片。但是，当我打包应用程序并通过包下载 exe 时，它会尝试从

C:\Program Files\WindowsApps\PackageName\FilePath

加载这些文件。这理所当然地给了它访问被拒绝的错误。

代码：

public static string ProjBaseDirectory = System.AppDomain.CurrentDomain.BaseDirectory;
public static string CountriesListPath = Path.Combine(ProjBaseDirectory, @"Assets\Contents\Docs\Countries.txt");

以上是我尝试访问大部分文件的方式，调试时我从中得到的路径是

C:\user\Projects\iAssist\iAssist\bin\x64\Debug\net6.0-windows10.0.19041.0\win10-x64\AppX\Assets\Contents\Docs\Countries.txt

但是同一条线在打包时给了我

C:\Program Files\WindowsApps\PackageName\FilePath

的路径。

其他文件/图像属性模仿这个。

我一直在尝试多种解决方案，比如为文件的属性尝试不同的构建操作选项，但似乎没有任何效果。有没有解决这个问题的方法，我们将不胜感激，我已经在这个问题上停留了两天了。

谢谢！

Answer 1

让我给你看一个基于@Simon Mourier关于

Windows.Storage.ApplicationData

评论的例子。

在这个例子中，我在项目的Assets文件夹中添加了一个文本文件SomeText.txt

MainPage.xaml

<Page
    x:Class="WindowsStorageApplicationDataExample.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:local="using:WindowsStorageApplicationDataExample"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
    mc:Ignorable="d">

    <Grid RowDefinitions="Auto,Auto,*">
        <Button
            Grid.Row="0"
            Click="InitializeButton_Click"
            Content="Initialize" />
        <Button
            Grid.Row="1"
            Click="UpdateSomeTextButton_Click"
            Content="Update SomeText.txt" />
        <ItemsRepeater
            Grid.Row="2"
            ItemsSource="{x:Bind Logs}" />
    </Grid>
</Page>

MainPage.xaml.cs

using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Controls;
using System;
using System.Collections.ObjectModel;
using Windows.ApplicationModel;
using Windows.Storage;

namespace WindowsStorageApplicationDataExample;

public sealed partial class MainPage : Page
{
    public MainPage()
    {
        this.InitializeComponent();
    }

    public ObservableCollection<string> Logs { get; } = new();

    private StorageFile? SomeTextInLocalStateFolderFile { get; set; }

    private async void InitializeButton_Click(object sender, RoutedEventArgs e)
    {
        StorageFolder installedLocationFolder = Package.Current.InstalledLocation;
        Logs.Add($"InstalledLocation: {installedLocationFolder.Path}");

        StorageFolder assetsFolder = await installedLocationFolder.GetFolderAsync("Assets");
        Logs.Add($"Assets folder: {assetsFolder.Path}");

        StorageFile someTextFile = await assetsFolder.GetFileAsync("SomeText.txt");
        Logs.Add($"SomeText.txt file: {someTextFile.Path}");

        StorageFolder localStateFolder = ApplicationData.Current.LocalFolder;
        Logs.Add($"LocalState folder: {localStateFolder.Path}");

        if (await localStateFolder.TryGetItemAsync("SomeText.txt") is StorageFile someTextInLocalStateFolderFile)
        {
            Logs.Add($"SomeText.txt file exists: {someTextInLocalStateFolderFile.Path}");
            SomeTextInLocalStateFolderFile = someTextInLocalStateFolderFile;
        }
        else
        {
            Logs.Add($"SomeText.txt file not found in {localStateFolder.Path}");
            SomeTextInLocalStateFolderFile = await someTextFile.CopyAsync(localStateFolder);
            Logs.Add($"SomeText.txt file created: {SomeTextInLocalStateFolderFile.Path}");
        }
    }

    private async void UpdateSomeTextButton_Click(object sender, RoutedEventArgs e)
    {
        if (SomeTextInLocalStateFolderFile is null)
        {
            Logs.Add("Not initialized.");
            return;
        }

        string someTextInLocalStateFolder = await FileIO.ReadTextAsync(SomeTextInLocalStateFolderFile);
        someTextInLocalStateFolder += Environment.NewLine + DateTime.Now;
        Logs.Add($"SomeText.txt in LocalStateFolder updated to: {someTextInLocalStateFolder}");
        await FileIO.WriteTextAsync(SomeTextInLocalStateFolderFile, someTextInLocalStateFolder);
    }
}