Read internal files inside a particular folder in Android

Question

Surely, this ins't a very hard question to be answered, but I'm having some trouble to implement this. My issue is: I need to read (or list) the files inside of a particular folder (say "myFolder", located in internal storage root) in Android's internal storage. Sure, it is possible, but how to do this? Thanks in advance!

Answer 1

To read the files inside your device you would do something like this:

// gets the files in the directory
File fileDirectory = new File(Environment.getDataDirectory()+"/YourDirectory/");
// lists all the files into an array
File[] dirFiles = fileDirectory.listFiles();

if (dirFiles.length != 0) {
    // loops through the array of files, outputing the name to console
    for (int ii = 0; ii < dirFiles.length; ii++) {
        String fileOutput = dirFiles[ii].toString();
        System.out.println(fileOutput); 
    }
}

If you wanted to get the files off an SD card, you would simply change getDataDirectory to getExternalStorageDirectory.