Many ways : 1) Activity -> Fragment In your Activity : create a bundle and use fragment.setArguments(bundle) in your Fragment : use Bundle bundle = getArguments() 2) Activity -> Fragment In your Fragment : create a public method In your Activity : call an active fragment public method : getSupportFragmentManager().findFragmentById(R.id.your_fragment).publicMethod(args) 3) Fragment -> Activity In … Read more
None of both is the better approach. Servlets are intended to listen on HTTP events (HTTP requests), not on deployment events (startup/shutdown). CDI/EJB unavailable? Use ServletContextListener @WebListener public class Config implements ServletContextListener { public void contextInitialized(ServletContextEvent event) { // Do stuff during webapp’s startup. } public void contextDestroyed(ServletContextEvent event) { // Do stuff during webapp’s … Read more
I’ll try to answer all your questions by addressing the larger question: How can I sync data between a webserver and an android app? Syncing data between your webserver and an android app requires a couple of different components on your android device. Persistent Storage: This is how your phone actually stores the data it … Read more