Hello. This is the link from the stackoverflow question if you would like to answer there also: http://stackoverflow.com/questions/11151996/how-to-use-dispatch-actions-on-android/11152042#comment14622740_11152042 I am working on a project hosted on AppEngine, and for the browser client I am using the GWTP platform which implies using GIN (on the client) and GUICE on the server. Also, it uses Models, presenters, actions and events. I am thinking of also writing an android client for the service but I don't know how to start because I don't know how to connect and exchange data with the webservice. I would have to use Actions and Action Handlers ( http://code.google.com/p/gwt-platform/wiki/GettingStartedDispatch ) which I use for the browser client. From Android I only know how to do it with RPC, and I can't make the connection, I don't know how to map classes from the device to the server. For example, by using GWTP, if on the browser client I want to do something on the server, I implement an Action class, an ActionResult class ( both on the client ) and an ActionHandler class (on the server). To dispatch an action, I use the DispatchAsync interface and to get the result I use AsyncCallback. Action (on the client ) - SendRoadNotification.java : public class SendRoadNotification extends ActionImpl<SendRoadNotificationResult> { private RoadNotification roadNot; @SuppressWarnings("unused") private SendRoadNotification() { // For serialization only } public SendRoadNotification(RoadNotification roadNot) { this.roadNot = roadNot; } public RoadNotification getRoadNot() { return roadNot; } } ActionResult (on the client ) -- SendRoadNotfifcationResult.java : public class SendRoadNotificationResult implements Result { private RoadNotification roadNot; @SuppressWarnings("unused") private SendRoadNotificationResult() { // For serialization only } public SendRoadNotificationResult(RoadNotification roadNot) { this.roadNot = roadNot; } public RoadNotification getRoadNot() { return roadNot; } } ActionHandler ( on the server ) -- SendRoadNotificationActionHandler.java : public class SendRoadNotificationActionHandler implements ActionHandler<SendRoadNotification, SendRoadNotificationResult> { static DataStore ds = DataStore.getDatastoreService(); @Inject public SendRoadNotificationActionHandler() { } @Override public SendRoadNotificationResult execute(SendRoadNotification action, ExecutionContext context) throws ActionException { //Here I am doing something with that action } @Override public void undo(SendRoadNotification action, SendRoadNotificationResult result, ExecutionContext context) throws ActionException { } @Override public Class<SendRoadNotification> getActionType() { return SendRoadNotification.class; } } The way I use those, is: SendRoadNotification action = new SendRoadNotification(rn); dispatchAsync.execute(action, sendRoadNotifCallback); And the callback: AsyncCallback<SendRoadNotificationResult> sendRoadNotifCallback = new AsyncCallback<SendRoadNotificationResult>() { @Override public void onSuccess(SendRoadNotificationResult result) { } @Override public void onFailure(Throwable caught) { Window.alert("Something went wrong"); } }; How can I implement this in android ? Can somebody give me an example or had this problem before ? I am using AppEngine sdk 1.6.4, GWT sdk 2.4.0, GWTP plugin for Eclipse and GPE plugin for Eclipse. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
