setDismissListener - Inside this, you can set the logic to be triggered when the alert dialog is dismissed.show() - used to display the AlertDialog.setPositiveButtonIcon - set an icon alongside the Button.setMultiChoiceList - again we can set an array but this time we can select multiple items from the List thanks to CheckBox.setList - used to set an array of strings which would be displayed in the form of a List.setView - used to add a custom view inside the alert dialog.setPositiveButton - We pass the string name, as well as Button, clicked callback method here.setCustomTitle - Here you can pass a custom view that’ll be put in place of the title part in the alert dialog.Some of the methods that can be used on an AlertDialog. Optionally, we can pass another parameter, the alert dialog style. We pass the context inside the constructor. val alertDialogBuilder = AlertDialog.Builder(this) To create an AlertDialog we use the AlertDialog.Builder inner class.

Buttons - There are three types of buttons: Positive, Negative, and Neutral.

There are three core components that build an Alert Dialog. They generally show some information and ask for a user action. Alert DialogsĪlert Dialog is a window that pops up on the screen. You need to add the new rounded icons to the respective roundIcon option on the AndroidManifest.In this tutorial, we’ll be discussing Alert Dialogs and implement them in our Android Application using Kotlin.

After that, the icons are created on the 'mipmap-* * * *' folder.

On “Background Layer' use the background provided.

On 'Foreground Layer' select the provided image and resize in order to get the proper aspect for the icon.

With this elements you need to follow these steps to generate the icon with the Image Asset Studio.

Image icon without background, example below (foreground).

To avoid this is necessary to create an adaptive icon. On API's > 26 android implements adaptive icons, is possible that this causes issues on app icon in existing applications, just like the following example. the solution was create adaptive icons and works perfectly. I have found myself with an issue on my android applications not been able to use adaptive icons, resulting in ugly app icons and strange shapes in different launchers, so.

Red j icon android studio