[Android] ポケモン一覧アプリを作成する

// 自動生成したクラス
data class PokemonData(
    val abilities: List<String>,
    val evolutions: List<Int>,
    val form: String,
    val hiddenAbilities: List<String>,
    val isMegaEvolution: Boolean,
    val name: String,
    val no: Int,
    val stats: Stats,
    val types: List<String>
): Serializable

data class Stats(
    val attack: Int,
    val defence: Int,
    val hp: Int,
    val spAttack: Int,
    val spDefence: Int,
    val speed: Int
): Serializable

import java.io.Serializable

// ポケモン情報全てを表すデータクラス
data class Pokemons(
    var list: List<PokemonDataOnKey>
): Serializable

// 識別できるキーを持ったクラス
data class PokemonDataOnKey(
    val index: Int,     // この項目を識別キーとします
    var data: PokemonData
): Serializable

// 自動生成したクラス
data class PokemonData(
    val abilities: List<String>,
    val evolutions: List<Int>,
    val form: String,
    val hiddenAbilities: List<String>,
    val isMegaEvolution: Boolean,
    val name: String,
    val no: Int,
    val stats: Stats,
    val types: List<String>
): Serializable

    private fun onClickListItem(tappedView: View, position: Int) {
        Repository.Instance().pokemonListScrollState = recyclerView.layoutManager?.onSaveInstanceState()

        val intent = Intent(this, MonsterDetailContainerActivity::class.java)
        intent.putExtra(MonsterDetailContainerActivity.FILTERED_DATA_KEY, Repository.Instance().filteredPokemons!!)
        intent.putExtra(MonsterDetailContainerActivity.ORIGINAL_DATA_KEY, Repository.Instance().originalPokemons!!)
        intent.putExtra(MonsterDetailContainerActivity.POSITION_KEY, position)
        intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP)
        startActivity(intent)
    }

    private fun findFullKana(list: ArrayList<String>): String {
        for(s in list) {
            if( s.isFullKana() ) {
                return s
            }
        }
        return ""
    }

    private fun pickupRecognizerText(data: Intent?): String {
        var result = data?.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS)
        if(result != null) {
            when(result.isEmpty()) {
                true -> return ""
                false -> return findFullKana(result)
            }
        }
        return ""
    }

    fun onRecognitionResult(data: Intent?) {
        var inputText: String = pickupRecognizerText(data)
        var searchView = toolbar.menu.findItem(R.id.menu_search).actionView as SearchView
        searchView.setQuery(inputText, false)
        if(inputText.isNotEmpty()) {
            searchView.requestFocusFromTouch()
            searchView.isIconified = false
        }
        Repository.Instance().filterData.searchText = inputText
        onChangedFilterCondition()
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        if(requestCode == REQUEST_CODE && resultCode == RESULT_OK) {
            onRecognitionResult(data)
        }
    }