Android: how to get a directory list ordered by name or by date descending?

Question

I'm able to do this:

    File images = new File(path);  
    File[] imageList = images.listFiles(new FilenameFilter(){  
        public boolean accept(File dir, String name)  
        {  
            return name.endsWith(".jpg");
        }  
    });

I copied from an answer of stackoverflow !

Is there a way to listFile ok kind "directory" (folder) and to list by reverse alphabetical order ? ... And by reverse date ?

Answer 1

I was getting an exception

IllegalArgumentException: Comparison method violates its general contract!

so I used this and it worked ok:

Arrays.sort(filesList, new Comparator<File>() {
   @Override
   public int compare(File a, File b) {
      if(a.lastModified() < b.lastModified() )
         return 1;
      if(a.lastModified() > b.lastModified() )
         return -1;
      return 0;
}});