Check Directory for new files in android

Question

I need to read all files in a directory every say 5 minutes and check if any new files have been created.

What would be the best way to do this?

I thought of using a DB to store all file names and then compare one by one but it seems like it would take too long.

I also thought of writing the file names to a text file and the looking if the file name is on the list or not.

Is there a better way?

These do involve persistence storage, I go with database – Murtaza Khursheed Hussain Feb 05 '15 at 07:27 — Murtaza Khursheed Hussain, Feb 05 '15 at 07:27

score 1 · Accepted Answer · edited May 23 '17 at 12:27

1

Why don't you try with FileObservers

private final class DirectoryObserver extends FileObserver {

private DirectoryObserver(String path, int mask) {
    super(path, mask);
}

@Override
public void onEvent(int event, String pathString) {
    event &= FileObserver.ALL_EVENTS;
    switch (event) {
        case FileObserver.DELETE_SELF:
            //do stuff
            break;

        case FileObserver.CREATE:
        case FileObserver.DELETE:
            //do stuff
            break;
    }
}
}

Ref:FileObserver CREATE or DELETE received only for files

edited May 23 '17 at 12:27

Community

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answered Feb 05 '15 at 07:28

Jagadesh Seeram

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I'll try this later. I need to search all the directories under the parentdirectory. – Luciano Stupenengo Feb 07 '15 at 20:44
Your answer led me to this. If it works it's exactly what I need. http://stackoverflow.com/questions/16448002/android-fileobserver-monitors-only-top-directory – Luciano Stupenengo Feb 09 '15 at 14:08

Check Directory for new files in android

1 Answers1