Exercise 5.01 – Using Kotlin Flow in an Android app

For this exercise, you will be continuing the movie app you worked on in Exercise 4.01 – Adding tests to coroutines in an Android app. This application displays the movies that are currently playing in cinemas. You will be adding Kotlin Flow to the project by following these steps:

1. Open the movie app you worked on in Exercise 4.01 – Adding tests to coroutines in an Android app in Android Studio.
2. Go to the MovieRepository class and add a new fetchMoviesFlow() function that uses a flow builder to return a Flow and emits the list of movies from MovieService, as shown in the following snippet:

   fun fetchMoviesFlow(): Flow<List<Movie>> {
       return flow {
           emit(movieService.getMovies(apiKey).results)
       }.flowOn(Dispatchers.IO)
   }

This is the same as the fetchMovies() function, but this function uses...