Visual Feedback: Dialogs, Snackbars & Toasts

Mar 16 2021 · Kotlin 1.4, Android 11, Android Studio 4

Part 1: Visual Feedback: Dialogs, Snackbars & Toasts

05. Use Custom Dialogs

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Previous episode: 04. Use Alert Dialogs Next episode: 06. Use Progress Indicators

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Sometimes, you’ll want to show a more unique or complex dialog to your users. By creating a custom dialog, you can define your own layout to display in the main content area of the dialog.

activity?.let {
 val inflater = it.layoutInflater
     .setView(inflater.inflate(R.layout.dialog_fruit, null))
     .setPositiveButton(R.string.dialog_fruit_close) { _, _ ->
} ?: throw IllegalStateException("Activity cannot be null")
fun onDialogButtonClicked()

Showing the Custom Dialog $[==]

Now, you need to show the dialog. Go back to MainActivity.kt and find the card with ID card_mystery. This card already has a click listener assigned that calls loadSurpriseDialog(), which has not yet been implemented.

CustomFruitDialog().apply {
 listener = object : CustomFruitDialog.Listener {
   override fun onDialogButtonClicked() {
}.show(supportFragmentManager, TAG_FRUIT_DIALOG)