```class MainActivity : AppCompatActivity() { ...

# android

[Kiki Abdullah]

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val rollButton: Button = findViewById(R.id.roll_button)
        rollButton.setOnClickListener { clickMe() }
    }

    private var word = listOf("Bla", "Blabla", "Yo", "Go")

    private fun clickMe() {
        val resultText: TextView = findViewById(R.id.result_text)
        val listIndex = 0
        resultText.text = word[listIndex]
        listIndex + 1
    }
}

Sorry for this stupid question, I mean to show "Bla" on first click, "Blabla" on second click and so on. but when I run the app, the screen only shows "Bla" even on second or next click. Thanks in advance

[jasu]

1. keep listIndex = 0 outside of clickMe()
2. have a condition to reset listIndex inside clickMe()
3. reAssign listIndex with increased index

val listIndex = 0
private fun clickMe() {
        if (listIndex + 1 > word.size)
            listIndex = 0
        val resultText: TextView = findViewById(R.id.result_text)
        resultText.text = word[listIndex]
        listIndex = listIndex + 1
    }

[Kiki Abdullah]

solved thanks, but I've change listIndex to var in order to reassign it in clickMe()

[jasu]

Yes indeed you've to