.NET MAUI从Stream加载IImage遇流关闭错误，如何存储图片用于视图显示？

场景与模型定义 #

我从API获取Base64格式的图片，将其存储到Dish模型的imageData字段中，模型定义如下：

public class Dish
{
    public int? productId { get; set; }
    public string? name { get; set; }
    public decimal? price { get; set; }
    public string? description { get; set; }
    public int? productCategoryId { get; set; }
    public string? notes { get; set; }
    public string? imageData { get; set; }
    public PlatformImage? image { get; set; }
}

当前实现与需求 #

我需要处理一个List<Dish>集合，将Base64解析为字节流后绘制图片。此前尝试从MemoryStream加载图片时遇到“Closed stream”错误，于是改用当前代码实现，但作为.NET、MAUI及C#新手，我希望能正确存储图片，后续将其与模型其他信息一同在视图中显示。当前代码如下：

foreach (var dish in dishList)
{
    IImage image;
    ICanvas canvas;
    var imagen = await httpClient.GetAsync($"https://mydinner.ch/ManagementAPI/api/ProductImages/GetDefaultImageByProductId?productId={dish.productId}");
    var imagenesString = await imagen.Content.ReadAsStringAsync();

    var imagenes = JsonConvert.DeserializeObject<Dish>(imagenesString);
    byte[] imageBytes = Convert.FromBase64String(imagenes.imageData.Substring(23));
    var ms = new MemoryStream(imageBytes);
   
    image = PlatformImage.FromStream(ms);

  
    if (image != null)
    {
        canvas.DrawImage(image, 10, 10, image.Width, image.Height);
        
    }
}

内容的提问来源于stack exchange，提问作者David Isea