Question

I am currently working on an android app that is to support the android dropbox api. I have got it working so that it sends a file from the android sd card to a dropbox folder. I then later on need to be able to download this file and save it to the phone sd card again.

How can I download the file from Dropbox and save it to the device, there is very little to no documentation about the android api.

Thanks for any help you can provide.

Answer 1

private boolean downloadDropboxFile(String dbPath, File localFile) throws IOException{

    BufferedInputStream br = null;
    BufferedOutputStream bw = null;

    try {
        if (!localFile.exists()) {
            localFile.createNewFile(); //otherwise dropbox client will fail silently
        }

        FileDownload fd = api.getFileStream("dropbox", dbPath, null);
        br = new BufferedInputStream(fd.is);
        bw = new BufferedOutputStream(new FileOutputStream(localFile));

        byte[] buffer = new byte[4096];
        int read;
        while (true) {
        read = br.read(buffer);
        if (read <= 0) {
        break;
        }
        bw.write(buffer, 0, read);
        }
    } finally {
        //in finally block:
        if (bw != null) {
            bw.close();
        }
        if (br != null) {
            br.close();
        }
    }

    return true;
}

Source: http://forums.dropbox.com/topic.php?id=23189&replies=5#post-159521