如何从 Xamarin.Forms 项目中的本地应用程序文件夹中检索文件列表？

Question

I have one folder "MyFolder" created in my Xamarin.Forms project and there are few files inside that folder. How can I retrieve all the files which are in that folder?

I tried below code but it's giving exception that Folder does not exist.

foreach (var file in System.IO.Directory.GetFiles("\\MyFolder"))
 {

 }

Even the below code is giving the same error.

string folderPath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "MyFolder");

 foreach (var file in System.IO.Directory.GetFiles(folderPath))
 {

 }

Answer 1

How to retrieve list of files from the local application folder which is in Xamarin.Forms project?

Try to traverse the resources in the assembly of the app to detect if the resource name contains 'MyFolder'. You could get the resources using GetManifestResourceNames method.

Don't forget to set the Build Action of all the files in the folder to EmbeddedResource .

Check the code:

var assembly = typeof(App).GetTypeInfo().Assembly;
var list = assembly.GetManifestResourceNames();

List<string> fileList = new List<string>();

foreach (var item in list)
{
    if (item.Contains("MyFolder"))
    {
        fileList.Add(item);
    }
}

Refer to: https://stackoverflow.com/a/47185054/11083277