Android-Kotlin-Adapters.kt

//ONE
var listaObjetos = mutableListOf("uno", "dos", "tres")
var adaptador = ArrayAdapter(this, R.layout.prueba,R.id.textView, listaObjetos)

spinner.adapter = adaptador

//TWO
spinner.adapter = ArrayAdapter.createFromResource(this@MainActivity, R.array.arreglo, android.R.layout.simple_spinner_item)
spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
    override fun onItemSelected(parent: AdapterView<*>, view: View,
                                position: Int, id: Long) {
        Toast.makeText(this@MainActivity, parent.selectedItem.toString(), Toast.LENGTH_SHORT).show()
    }

    override fun onNothingSelected(parent: AdapterView<*>) {}
}

//CURSOR

//CUSTOM

//RECYCLER