質問編集履歴
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[リクエスト先](https://raw.githubusercontent.com/Biuni/PokemonGO-Pokedex/master/pokedex.json)
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リクエストのレスポンスとして返されたnameとimgをそれぞれテキスト、画像としてRecyclerViewを用いて描画したいです。その際、リストの型をうまく書くことができません。
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APIのsuspend関数の戻り値をどう書けばよいか分かりません。
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JSONを基に作成したdataクラス
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```kotlin
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data class Pokemon(
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var id: Int = 0,
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var num: String? = null,
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var name: String? = null,
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var img: String? = null,
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var type: List<String>? = null,
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var height: String? = null,
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var weight: String? = null,
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var candy: String? = null,
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var candy_count: Int = 0,
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var egg: String? = null,
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var spawn_chance: Double = 0.0,
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var avg_spawns: Double = 0.0,
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var spawn_time: String? = null,
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var multipliers: List<Double>? = null,
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var weaknesses: List<String>? = null,
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var next_evolution: List<Evolution>? = null,
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var prev_evolution: List<Evolution>? = null
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)
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data class Evolution(
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var num: String? = null,
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var name: String? = null
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)
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```
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MainActivity
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```kotlin
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class MainActivity : AppCompatActivity() {
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private lateinit var recyclerView: RecyclerView
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private lateinit var pokemonAdapter: PokemonAdapter
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private lateinit var viewModel: MainViewModel
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_main)
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val repository = Repository()
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val viewModelFactory = MainViewModelFactory(repository)
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viewModel = ViewModelProvider(this, viewModelFactory).get(MainViewModel::class.java)
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viewModel.getPokemon()
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recyclerView = findViewById(R.id.recycler_view)
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recyclerView.layoutManager =
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LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false)
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viewModel.pokemons.observe(this, { response ->
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if(response.isSuccessful){
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pokemonAdapter = PokemonAdapter(this, response)
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recyclerView.adapter = pokemonAdapter
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}
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})
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}
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Adapterのコンストラクタ内のpokemonListをどのように書けばよいのか分かりませんでした。型を上記のinterfaceと同じResponse<List<Pokemon>>にした場合、リストの中身を参照できず、onBindViewHolder等で怒られてしまいます。
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```kotlin
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data c
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class PokemonAdapter(private var context: Context, private var pokemonList: List<Pokemon>) :
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RecyclerView.Adapter<PokemonAdapter.PokemonHolder>() {
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inner class PokemonHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
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var pokeImage: ImageView
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var pokeName: TextView
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init {
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pokeImage = itemView.findViewById(R.id.img_pokemon)
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pokeName = itemView.findViewById(R.id.name_pokemon)
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}
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}
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override fun onCreateViewHolder(
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parent: ViewGroup,
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viewType: Int
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): PokemonAdapter.PokemonHolder {
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val view = LayoutInflater.from(parent.context).inflate(R.layout.row_pokemon, parent, false)
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return PokemonHolder(view)
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}
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override fun onBindViewHolder(holder: PokemonAdapter.PokemonHolder, position: Int) {
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holder.pokeName.text = pokemonList[position].name
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Glide.with(context).load(pokemonList[position].img).into(holder.pokeImage)
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}
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override fun getItemCount(): Int {
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return pokemonList.size
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}
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fun setPokemonList(newList: List<Pokemon>) {
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pokemonList = newList
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notifyDataSetChanged()
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}
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}
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```
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MainActivity
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```kotlin
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class MainActivity : AppCompatActivity() {
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private lateinit var recyclerView: RecyclerView
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private lateinit var pokemonAdapter: PokemonAdapter
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private lateinit var viewModel: MainViewModel
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_main)
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val repository = Repository()
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val viewModelFactory = MainViewModelFactory(repository)
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viewModel = ViewModelProvider(this, viewModelFactory).get(MainViewModel::class.java)
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viewModel.getPokemon()
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recyclerView = findViewById(R.id.recycler_view)
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recyclerView.layoutManager =
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LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false)
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viewModel.pokemons.observe(this, { response ->
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if(response.isSuccessful){
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pokemonAdapter = PokemonAdapter(this, response)
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recyclerView.adapter = pokemonAdapter
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}
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})
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}
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```
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MainViewModel
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```kotlin
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class MainViewModel(private val repository: Repository): ViewModel() {
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val pokemons: MutableLiveData<Response<List<Pokemon>>> = MutableLiveData()
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fun getPokemon(){
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viewModelScope.launch{
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val response: Response<List<Pokemon>> = repository.getPokemon()
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pokemons.value = response
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}
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}
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}
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```
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Repository
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```kotlin
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class Repository {
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suspend fun getPokemon(): Response<List<Pokemon>> {
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val response: Response<List<Pokemon>> = RetrofitInstance.api.getPokemon()
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return response
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}
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}
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```
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Adapterのコンストラクタ内のpokemonListをどのように書けばよいのか分かりませんでした。型を上記のinterfaceと同じResponse<List<Pokemon>>にした場合、リストの中身を参照できず、onBindViewHolder等で怒られてしまいます。
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```kotlin
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class PokemonAdapter(private var context: Context, private var pokemonList: List<Pokemon>) :
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RecyclerView.Adapter<PokemonAdapter.PokemonHolder>() {
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inner class PokemonHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
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var pokeImage: ImageView
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var pokeName: TextView
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init {
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pokeImage = itemView.findViewById(R.id.img_pokemon)
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pokeName = itemView.findViewById(R.id.name_pokemon)
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}
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}
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override fun onCreateViewHolder(
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parent: ViewGroup,
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viewType: Int
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239
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): PokemonAdapter.PokemonHolder {
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|
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241
|
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val view = LayoutInflater.from(parent.context).inflate(R.layout.row_pokemon, parent, false)
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|
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243
|
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return PokemonHolder(view)
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244
|
-
|
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245
|
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}
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|
246
|
-
|
|
247
|
-
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248
|
-
|
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249
|
-
override fun onBindViewHolder(holder: PokemonAdapter.PokemonHolder, position: Int) {
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|
250
|
-
|
|
251
|
-
holder.pokeName.text = pokemonList[position].name
|
|
252
|
-
|
|
253
|
-
Glide.with(context).load(pokemonList[position].img).into(holder.pokeImage)
|
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254
|
-
|
|
255
|
-
}
|
|
256
|
-
|
|
257
|
-
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|
258
|
-
|
|
259
|
-
override fun getItemCount(): Int {
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|
260
|
-
|
|
261
|
-
return pokemonList.size
|
|
262
|
-
|
|
263
|
-
}
|
|
264
|
-
|
|
265
|
-
|
|
266
|
-
|
|
267
|
-
fun setPokemonList(newList: List<Pokemon>) {
|
|
268
|
-
|
|
269
|
-
pokemonList = newList
|
|
270
|
-
|
|
271
|
-
notifyDataSetChanged()
|
|
272
|
-
|
|
273
|
-
}
|
|
274
|
-
|
|
275
|
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|
|
276
|
-
|
|
277
|
-
}
|
|
278
|
-
|
|
279
|
-
```
|
|
280
|
-
|
|
281
|
-
|
|
282
|
-
|
|
283
223
|
|
|
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224
|
|
|
285
225
|
|
|
@@ -292,17 +232,7 @@
|
|
|
292
232
|
|
|
293
233
|
|
|
294
234
|
|
|
295
|
-
・
|
|
235
|
+
・新しくdata classを定義してみるが、上記と同様にAdaoterをかくことができなかった。
|
|
296
|
-
|
|
297
|
-
```kotlin
|
|
298
|
-
|
|
299
|
-
data class PokemonList(
|
|
300
|
-
|
|
301
|
-
var pokemon: List<Pokemon>? = null
|
|
302
|
-
|
|
303
|
-
)
|
|
304
|
-
|
|
305
|
-
```
|
|
306
236
|
|
|
307
237
|
|
|
308
238
|
|