【Android】【Kotlin】Language Learning

val arrayList: MutableList = ArrayList()
arrayList.add("ADVERTISE_TX_POWER_ULTRA_LOW")
arrayList.add("ADVERTISE_TX_POWER_LOW")
arrayList.add("ADVERTISE_TX_POWER_MEDIUM")
arrayList.add("ADVERTISE_TX_POWER_HIGH")
return arrayList

val list = listOf("ADVERTISE_TX_POWER_ULTRA_LOW", "ADVERTISE_TX_POWER_LOW", "ADVERTISE_TX_POWER_MEDIUM", "ADVERTISE_TX_POWER_HIGH")

val arrayAdapter = ArrayAdapter(requireActivity(),
            android.R.layout.simple_list_item_1,
            list)

spinner.onItemSelectedListener = object : OnItemSelectedListener {
    override fun onItemSelected(p0: AdapterView<*>?, p1: View?, position: Int, p3: Long) {
    	Log.d(TAG, "onItemSelected")
    }

    override fun onNothingSelected(p0: AdapterView<*>?) {
        Log.d(TAG, "onNothingSelected")
    }
}

private lateinit var viewModel: MainViewModel
viewModel = ViewModelProvider(this,
            ViewModelProvider.NewInstanceFactory()).get(MainViewModel::class.java)