从Xamarin Forms中的资源加载所有图像

Question

I'm creating an offline application in Xamarin Forms, I'm currently saving images in specific projects (Android and iOS) and would like to load them all into a ListView. I tried using the following code:

IEnumerable <string> images = Directory.EnumerateFiles("Resources", "*.jpg", SearchOption.AllDirectories); 

But I was unsuccessfully, could anyone help me please?

Thank you.

Answer 1

if you want to do like this,i suggest you to save the images into Assets folder,and you could iterate the folder and filter with .png .

for example in Android :

List<System.IO.Stream> streamList = new List<System.IO.Stream>();
AssetManager assetManager = Assets;
string[] images = assetManager.List("");
for (int i = 0; i < images.Length; i++)
   {
     if (images[i].EndsWith(".png"))
       {
          using (StreamReader sr = new StreamReader(assetManager.Open(images[i])))
             {
               streamList.Add(sr.BaseStream);
             }
       }
   }

Assets in android:

you could get the list of image stream by DependencyService or MessagingCenter

Answer 2

I was able to solve my problem with the following code:

public IEnumerable<string> EnumerateImagesFromResource(Func<FieldInfo, bool> filter)
{
    return typeof(Resource.Drawable).GetFields().Where(filter).Select(s => s.Name);
}