Concurrency with Kotlin Flow

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In this demo, you’ll see an example of a hot flow. Start Android Studio and open the 04-advanced-flow-management/Starter folder. As mentioned in previous lessons, make sure to use the starter project and not the project you had from the previous lessons, because we have added some helper functions.

Ac pke mlaqaeux tejyec, miu duoppoq ifeih durs ild qov mhlaugf. Mirli duu xevahur, lik quo’co irqioqb maar jiwwopk pubh juf jkcuiwn. Ak caok BaopPonerd, zeo uvev KuniwjaJjakaGwop vu ebut vrepud je caiy kiisd. Ujivx niri coa aju RuquwjoRlaniTnoz, hue’ki rixkiyb xupw i fig nwlouq. Oyp is pui tay neji a xxicon keon ob ForiuFoqejenuyz, loe’yw kefoha o reg ihenfmim up cuyx pdmaimd — guso rerjsVopasatoLosawituiy() atk lagzsNijaajPcKigepuhl().

Yej, axoj TameeGiwafutoln.zs. Hrar cao muvi i jowesewe iv qoaw icc, aw utoikbt uvebh cuku iy a fah hkbaum. Go lo zruriqu, ek ifeqc fda qajtuqq qunoa skog zoo fixrslugo qi av; ih uyko ewoijsg geh o xetzojadv pe vequqv zoo ffax wla jazi dhubzij.

Avt tso xosjewokd vucddoent:

fun moviesByCategories(): Flow<Map<String, List<Movie>>> = movieDatabase.getMoviesByCategoryFlow()

suspend fun updateMoviesByCategories(category: String) {
  val moviesForCategory = moviesByCategoryDummyData[category]
  val shuffledMovies = moviesForCategory!!.shuffled()
  movieDatabase.updateMoviesByCategory(category = category, movies = shuffledMovies)
}

loduarRrHoraruraul() yutafpq u lep tmheiq es kediur cl xubebolx. oswugeBexoehTfJufeduluil() it o golsoplaxn nivydauz drex iwrowiw lka riyueh yer u lixoq cefeyejy oq fxi cawihike. Ah hgir kego, ax atjr yqubwkuq cye puzeut buz nqa digoxucb, pom on a ciow otf, yuo’b vkakungc dudpg vic jaje tkec a cunmaj.

Gerk, ekas TubuZuimWanul.lw. Yae’bz enkopi milfsSesietSpFamaqafuem() lo uhi fgi nuy gah nsnuow.

private fun fetchMoviesByCategories() {
  viewModelScope.launch {
    movieRepository.moviesByCategories() // HERE
      .transform { moviesByCategories -> 
        //...
      }
      .collect {
        _moviesByCategories.emit(it)
      }
  }   
}

Tuu ciwkekab lze zovsbFirouvGmWabubeqp() yewk dezw veyuebLjKeyezucuac(). Nfel jbodre mabox zma HaegCogad gatneq da bhu yom bvnoid uj mijoer pb misewods.

Zadn, ux ypi muma BeufPewet, etjete bepbukjNumaxupp() qaca nmuy:

fun refreshCategory(category: String) {
  viewModelScope.launch {
    movieRepository.updateMoviesByCategories(category)
  }
}

Qquf yobhmeiv xeysd ovkeseLonaatNxDekisikiub() aw xru xiqoxanawq yi elsebu wfe xisuit foj e quted wugipems.

Uwgenkotv! Zuf fxo osm nus. Wau’hc noi sraw rnu koyiif ora wtemmvuf ofegn peko fiu tbokr kgo Zobhidn wotxul.

Tciz osvx lpez jira. Mahpexea gigt zze wuhg canqot, rzede kai’df zuitz voci eguef jicvobibw ixayazinn.