Scan a file folder in android for file paths

Question

So i have a folder at \"mnt/sdcard/folder\" and its filled with image files. I want to be able to scan the folder and for each of the files that is in the folder put each file p

Answer 1

Yes, you can use the java.io.File API with FileFilter.

File dir = new File(path);
FileFilter filter = new FileFilter() {
    @Override
    public boolean accept(File file) {
        return file.getAbsolutePath().matches(".*\\.png");
    }
};
File[] images = dir.listFiles(filter);

I was quite surprised when I saw this technique, as it's quite easy to use and makes for readable code.

Answer 2

You could use

List<String> paths = new ArrayList<String>();
File directory = new File("/mnt/sdcard/folder");

File[] files = directory.listFiles();

for (int i = 0; i < files.length; ++i) {
    paths.add(files[i].getAbsolutePath());
}

See listFiles() variants in File (one empty, one FileFilter and one FilenameFilter).