Thanks! I will try that.
On Jan 7, 9:55 pm, A R <[email protected]> wrote:
> HiCindy,
>
> You can implement the same observer pattern. Create a delegate
> interface, pass the reference to the thread and once work is done let
> the thread do the call backs. Skeleton below might help (note code
> below will not compile)
>
> interface callback {
> workSuccess(); //pass params based on your logic
> workFailure();
>
> }
>
> MyUi implements callback {
> updateUI() {
> MyBackend.getMails(this); //this start a new thread or let getMails
> start a new thread
> }
> function workSuccess() {
> //make sure if you are updating UI it has to be done in
> handler.post
> }
> function workFailure() {
> }
>
> }
>
> MyBackend {
> function getMails(callback delegate) {
> //get mails
> if (success) {
> delegate.workSuccess();
> } else {
> delegate.workFailure();
> }
> }
>
> }
>
> HTH
>
> On Jan 7, 10:47 am,cindy<[email protected]> wrote:
>
> > Hi All,
>
> > It is a common question for UI.
>
> > If user needs to send a request to server to get information, it
> > always have delay time. In regular java code, we can first generate
> > default UI, display it. Then send request to server in a thread. After
> > response is back, update the UI.
>
> > If the application is to retrieve emails, how can I implement the
> > similar functionality in android?
> > Where can I find sample code?
>
> > Thanks!
>
> >Cindy
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