'how to get all audio files from internal and external storage in android studio

How can I access all audio files from my storage internal as well as external in android studio and how can I get recent audio files on top of my recyclerview?

       public ArrayList<ModelClass> getData() {

        ModelClass f;
        String targetpath = Environment.getExternalStorageDirectory().getPath() + "/"  ;
        File targetdir = new File(targetpath);
        files = targetdir.listFiles();
        if (files.length != 0) {
            for (int i = files.length -1 ; i > -1; i--) {
                File file = files[i];
                f = new ModelClass();
                f.setUri(Uri.fromFile(file));
                f.setPath(files[i].getAbsolutePath());
                f.setDate((file.lastModified()));
                f.setFilename(file.getName());
                if (!f.getUri().toString().endsWith(".nomedia")) {
                    fileslist.add(f);
                }
            }
        } else {
            Toast.makeText(this, "Make dummy call", Toast.LENGTH_SHORT).show();
            dummyCallAlert();
        }

        return fileslist;
    }

image given below

javaandroid


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