android - is valid Mvp pattern implementation (with rxandroid and retrofit) -

i want data remote server using rxandroid in mvp repository. then,set grid adapter data(in fragment), , replace fragment tablet ui(in activity).

if use callback listener need @ least 2 callbacks, notify async(rxjava) done fragment , launch fragment first record data set.

is there alternative way solve problem other callback ??

actually not sure if using rxjava properly.

for pass observable fragment in order set adapter , launch new fragment returned data.

 public <t> observable.transformer<t, t> applyschedulers() {     return observable -> observable             .subscribeon(schedulers.io())             .observeon(androidschedulers.mainthread()); }  @override public observable<moviedatacontainer> getmoviebyfilter(string sortby, string apikey, int number) {     movieapiservice movieapiservice= retrofit.createservice(movieapiservice.class);     return movieapiservice             .getmovielist(sortby,apikey,number)             .compose(applyschedulers()); } 

if not doing correct way please let me know. if have sample case, grateful

just in case here mygit repo

i create these components:

• itemsview , itemspresenter displaying items list.
• detailsview , detailspresenter displaying item details.
• navigationhelper managing navigation (eg. open new fragment)

flow this:

1. itemspresenter.loaddata() loads data using rxjava , retrofit.
2. itemspresenter calls itemsview.showitems(list<items> list) (inside have (adapter.setcontent(list))
3. itemspresenter calls navigationhelper.showdetails(item selecteditem). navigationhelper should behave differently depending on phone/tablet.

itemspresenter behave differently phone , tablet. phone calls navigationhelper.showdetails when user selects item list. table calls navigationhelper.showdetails first item when data loaded. suggest pass knowledge phone/table via presenter's constructor.

for example of itemspresenter -> itemsview flow see presenter , view implementation