Android Programming: The Big Nerd Ranch Guide, 5th Edition

Wiring Up the User Interface

First, create a list of Question objects in MainActivity, along with an index for the list.

Listing 2.5  Adding a Question list (MainActivity.kt)

class MainActivity : AppCompatActivity() {

    private lateinit var trueButton: Button
    private lateinit var falseButton: Button

    private val questionBank = listOf(
            Question(R.string.question_australia, true),
            Question(R.string.question_oceans, true),
            Question(R.string.question_mideast, false),
            Question(R.string.question_africa, false),
            Question(R.string.question_americas, true),
            Question(R.string.question_asia, true))

    private var currentIndex = 0
    ...
}

Here you call the Question constructor several times and create a list of Question objects.

(In a more complex ...