Your First Kotlin Android App: Polishing the App
About this episode
Leave a rating/review
See forum comments
Mark complete
Next episode: 22. Setup App Icon & Display Name
Heads up... You’re accessing parts of this content for free, with some sections shown as text.
Heads up... You’re accessing parts of this content for free, with some sections shown as text.
Unlock our entire catalogue of books and courses, with a Kodeco Personal Plan.
Unlock now
Now is time for your first challenge in this part. For this, I want you to add the back button functionality in the TopAppBar of the Scaffold and the back Button in the main content inside the AboutScreen. You’ll be following the same process of state hoisting from the previous episode.
fun AboutScreen(onNavigateBack: () -> Unit) {
//...
}
// In the TopAppBar
IconButton(onClick = { onNavigateBack() }) {
//...
}
// In the Button in the main content
Button(
onClick = { onNavigateBack() },
//...
) {
//..,.
}
AboutScreen(onNavigateBack = {})
composable("about") {
AboutScreen(onNavigateBack = { navController.navigateUp() }) // Updated Code
}