Deleting file from sdcard in android

Question

I am making an app in which I have to delete the recently added mp3 file in sdcard. The format in which the song is saved is:

Songhello_17_26.amr

where 17_26 is the time when song was added. Can anyone help me how delete the recently added file in sdcard. I mean to say that I want to delete the time means the latest added file should get deleted. Any help will be appreciated.

Answer 1

As it states here, you cant do that directly, you first need to get list of files File.listFiles(), Comparator,File.lastModified(), Arrays.sort() and delete.

Edited:

File f = new File(path);

File [] files = f.listFiles();

Arrays.sort( files, new Comparator()
{
    public int compare(Object o1, Object o2) {

        if (((File)o1).lastModified() > ((File)o2).lastModified()) {
            return -1;
        } else if (((File)o1).lastModified() < ((File)o2).lastModified()) {
            return +1;
        } else {
            return 0;
        }
    }

}); 

To delete latest one:

 files[0].delete();