One way is to submit data to your webiste's php page by using GET or POST method which will add it to MySql on your remote application server, like
HttpGet request = new HttpGet(url); ResponseHandler<String> responseHandler = new BasicResponseHandler(); HttpClient client = new DefaultHttpClient(); String response = client.execute(request, responseHandler);
url can be: www.mysite.com?id=5&name=john ...This also has to be an AsyncTask doInBackground request...The problem is how many records can be uploaded at once...
It easy to make the remote application server produce an XML file on request to be downloaded by android, with a similar request like above.