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

Issue

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 ?

Solution

final File[] sortedFileName = images.listFiles()

if (sortedFileName != null && sortedFileName.length > 1) {
        Arrays.sort(sortedFileName, new Comparator<File>() {
             @Override
             public int compare(File object1, File object2) {
                return object1.getName().compareTo(object2.getName());
             }
    });
}

Use Array.sort() to compare the name of the files.

Edit: Use this code to sort by date

final File[] sortedByDate = folder.listFiles();

if (sortedByDate != null && sortedByDate.length > 1) {
        Arrays.sort(sortedByDate, new Comparator<File>() {
             @Override
             public int compare(File object1, File object2) {
                return (int) ((object1.lastModified() > object2.lastModified()) ? object1.lastModified(): object2.lastModified());
             }
    });
}

Answered By - Blackbelt
Answer Checked By - Senaida (JavaFixing Volunteer)