android - RxJava Thread.sleep in another thread -


how use rxjava update ui every 1 second in android? i'm trying this:

 (int = 0; <10 ; i++) { //test                rx.observable.just(getsleep())                         .subscribeon(schedulers.newthread())                         .observeon(androidschedulers.mainthread())                         .subscribe(v->updatetime());//update textview         }      private <t> int getsleep() {         try {             thread.sleep(1000);         } catch (interruptedexception e) {             e.printstacktrace();         }         return 0;     }

but thread.sleep() doing in ui thread. wrong?

observable.interval(1, timeunit.seconds) //emits item every second             .observeon(androidschedulers.mainthread()) //switches thread computation (interval's default) ui             .subscribe(i -> updateui()); //update textview

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