Question

I create some folders into assets. Each folder contains files that I would like to list. I am using following code but I always get a null value for fileList. Thank you.

I used, listFiles("/assets/images/","nothing");

private void listFiles(String dirFrom, String dirTo) {


        File f = new File(dirFrom);

        String fileList[] = f.list();

            if (fileList != null)
            {   
                for ( int i = 0;i<fileList.length;i++)
                {
                    Log.d("",fileList[i]); 
                }
            }
    }    

Answer 1

You’ll probably want to do this:

private void listFiles(String dirFrom) {
        Resources res = getResources(); //if you are in an activity
        AssetManager am = res.getAssets();
        String fileList[] = am.list(dirFrom);

            if (fileList != null)
            {   
                for ( int i = 0;i<fileList.length;i++)
                {
                    Log.d("",fileList[i]); 
                }
            }
    }

Also your function call should be: listFiles("images"); if you want to list images.