Android Question Music player chooser

Intent viewIntent = new Intent(Intent.ACTION_VIEW);
File file = new File((String) ((TextView) item).getText());
viewIntent.setDataAndType(Uri.fromFile(file), "audio/*");
startActivity(Intent.createChooser(viewIntent, null));

  Dim r As Reflector
   Dim f As Object
   f = r.CreateObject2("java.io.File", Array As Object("/sdcard/test.amr"), Array As String("java.lang.String"))
   Dim share As Intent
   share.Initialize(share.ACTION_VIEW,r.RunStaticMethod("android.net.Uri", "fromFile", _
      Array As Object(f), Array As String("java.io.File")))
    share.WrapAsIntentChooser("Choose")
   StartActivity(share)