Your First Kotlin Android App: An App From Scratch

Aug 15 2023 · Kotlin 1.8.20, Android 13, Android Studio Flamingo | 2022.2.1

Part 2: Manage Data in Jetpack Compose

13. Handle a Click Interaction

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00:02At this stage, you’ve added the hit me button to Bullseye but when you tap it, nothing happens. It’s time to add some interactivity to the app!!! Let’s start by making the button print out a text message when you tap it.

Button(onClick = {
  println("Hello, Android!!!")
}) {
  //...

Log.i("Button Click Event", "You clicked the Hit Me Button")

var alertIsVisible: Boolean = false

alertIsVisible = true

if (alertIsVisible) {
  Text("This is an alert")
}

Button(onClick = {
  alertIsVisible = true
  Log.i("ALERT VISIBLE?", alertIsVisible.toString()) // New Code
}) {
  //...