android - IBinder between Bound Service and Activity -


maybe i'm tired. struggling understand how ibinder interface works.

a service has method call onbind(intent intent) , passes form of ibinder binding activity.

where struggling how visualize this. ibinder object pipe between service , activity, activity can interact directly service? or ibinder object passed activity has information service in (similar intent)?

edit: idea me able call getsomedata function binding activity. or rather, idea msomedata obect activity.

i have following classes using, , im trying figure out best way have activity request data (serializable if needed though i'd rather not) service.

public class mainservice extends service{      private custombinder mibinder;     private somedataobject msomedata;      @override     public int onstartcommand(intent intent, int flags, int startid) {         mibinder = new custombinder();         return super.onstartcommand(intent, flags, startid);     }      @override     public custombinder onbind(intent intent) {     // todo: return communication channel service.     // auto generated , havent changed yet. not     // experiencing errors not designed run yet.         throw new unsupportedoperationexception("not yet implemented");     }      public final somedataobject getsomedata(){         return msomedata;     }      class somebinder extends mainenginebinder{         // auto generated stuff     } }


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