Parent Model
data class Category(
val category : String,
val result : List<Result>? = null
) {
}
Child Model
@Parcelize
data class Result(
val backdrop_path: String,
val id: Int,
val original_language: String,
val original_title: String,
val overview: String,
val popularity: Double,
val poster_path: String,
val release_date: String,
val title: String,
val video: Boolean,
val vote_average: Double,
val vote_count: Int
) : Parcelable
Child Adapter
class MovieAdapter : ListAdapter<Result, MovieAdapter.MovieViewHolder> (DiffUtilCallBack()){
inner class MovieViewHolder(itemView : View) : RecyclerView.ViewHolder(itemView){
val poster : ImageView = itemView.findViewById(R.id.ivMoviePoster)
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MovieViewHolder {
return MovieViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.layout_movie, parent, false))
}
override fun onBindViewHolder(holder: MovieViewHolder, position: Int) {
val movie = getItem(position)
val url = "https://image.tmdb.org/t/p/original" + movie.poster_path
Glide.with(holder.itemView.context).load(url).into(holder.poster)
}
class DiffUtilCallBack : DiffUtil.ItemCallback<Result>(){
override fun areItemsTheSame(oldItem: Result, newItem: Result): Boolean {
return oldItem.id == newItem.id
}
override fun areContentsTheSame(oldItem: Result, newItem: Result): Boolean {
return newItem == oldItem
}
}
}
parent Adpter
inner class CategoryViewHolder(itemView : View) : RecyclerView.ViewHolder(itemView){
val movieCategory : TextView = itemView.findViewById(R.id.tvMovieCategory)
val rvCategory : RecyclerView = itemView.findViewById(R.id.rvMovieCategory)
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CategoryViewHolder {
return CategoryViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.layout_category_movie, parent, false))
}
override fun onBindViewHolder(holder: CategoryViewHolder, position: Int) {
val item = getItem(position)
holder.movieCategory.text = item.category
val movieAdapter = MovieAdapter()
holder.apply {
rvCategory.layoutManager = LinearLayoutManager(itemView.context, LinearLayoutManager.HORIZONTAL, false)
rvCategory.adapter = movieAdapter
}
movieAdapter.submitList(item.result)
}
class DiffUtilCallBack : DiffUtil.ItemCallback<Category>(){
override fun areItemsTheSame(oldItem: Category, newItem: Category): Boolean {
return oldItem.category == newItem.category
}
override fun areContentsTheSame(oldItem: Category, newItem: Category): Boolean {
return oldItem.category == newItem.category
}
}
}
Fragment
val list = mutableListOf<List<Result>>()
val category = listOf("upcoming", "popular")
for(item in category){
viewModel.movieList(item)
viewModel.movieList.observe(viewLifecycleOwner, Observer {
it.body()?.results?.let { it1 -> list.add(it1) }
})
}
val mList = listOf(Category("Upcoming", list[0]), Category("Popular", list[1]))
categoryAdapter.submitList(mList)
API Sample: https://api.themoviedb.org/3/movie/upcoming?api_key=2c2f00da593005799f2f1ecb3f773145&language=en-US&page=1
{
"dates": {
"maximum": "2023-09-07",
"minimum": "2023-08-15"
},
"page": 1,
"results": [
{
"adult": false,
"backdrop_path": "/zN41DPmPhwmgJjHwezALdrdvD0h.jpg",
"genre_ids": [
28,
878,
27
],
"id": 615656,
"original_language": "en",
"original_title": "Meg 2: The Trench",
"overview": "An exploratory dive into the deepest depths of the ocean of a daring research team spirals into chaos when a malevolent mining operation threatens their mission and forces them into a high-stakes battle for survival.",
"popularity": 1730.76,
"poster_path": "/4m1Au3YkjqsxF8iwQy0fPYSxE0h.jpg",
"release_date": "2023-08-02",
"title": "Meg 2: The Trench",
"video": false,
"vote_average": 7,
"vote_count": 446
},
{
"adult": false,
"backdrop_path": "/iEFuHjqrE059SmflBva1JzDJutE.jpg",
"genre_ids": [
16,
10751,
28,
14,
10749
],
"id": 496450,
"original_language": "fr",
"original_title": "Miraculous - le film",
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"poster_path": "/jazoSkOHR1H5X4ILIJBN1UfcEyA.jpg",
"release_date": "2023-07-05",
"title": "Miraculous: Ladybug & Cat Noir, The Movie",
"video": false,
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},
{
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],
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},
{
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],
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}
The child adapter accepts List<Result>. And the parent adapter accepts List<Category>. The data is coming from API and observing the live data. What I want to do that for every category item a response is generated, and I want to pass to the parent adapter but I am unable to store the result which is coming from the response. I am new to this so I am not getting what is going on here.
