c# - 从我在 Xamarin.Android 中创建的文件夹中获取文件

Question

我想从外部存储文件夹(wall_e_imgs)获取所有文件..这里是代码-

public void getImages()
    {
        var path1 = Android.OS.Environment.ExternalStorageDirectory.AbsolutePath.ToString();
        string path = System.IO.Path.Combine(path1, "wall_e_imgs");
        //var files= System.IO.Directory.GetFiles(Android.OS.Environment.ExternalStorageDirectory.ToString() + "wall_e_imgs");
        //var files = System.IO.Directory.GetFiles(path);
        //string path = Android.OS.Environment.ExternalStorageDirectory.ToString() + "/wall_e_imgs";
        //File directory=new File(path);
        Java.IO.File directory = new Java.IO.File(path);
        Java.IO.File[] files = directory.ListFiles();//always count is 0 even though there are lot files there

        foreach (var i in files)
        {
            FileInfo info = new FileInfo(i.Name);
            if (info.Name.Contains("Wall_e"))
            {
                di.Add(new DownloadedImages { Path1 = info.DirectoryName, Name1 = info.FullName });
            }
        }

    }

但即使有很多文件，它总是给出 0 个文件。

Answer 1

试试这个

var folder = Android.OS.Environment.ExternalStorageDirectory + Java.IO.File.Separator + "yourfoldername";
                if (!Directory.Exists(folder))
                    Directory.CreateDirectory(folder);

                var filesList = Directory.GetFiles(folder);
                foreach (var file in filesList)
                {
                    var filename = Path.GetFileName(file);
                }