In Chapter 4, Menus, we created a theme to make an Activity look like a dialog. In this recipe, we'll demonstrate how to create a dialog using the AlertDialog class. AlertDialog offers a Title, up to three buttons, and a list or custom layout area, as shown in the following example:
Create a new project in Android Studio and call it AlertDialog. Use the default Phone & Tablet options and select the Empty Activity option when prompted for the Activity Type.
To demonstrate, we'll create a Confirm Delete dialog to prompt the user for confirmation after pressing the Delete button. Start by opening the main_activity.xml layout file and follow these steps:
- Add the following
<Button>:
<Button android:id="@+id/buttonDelete" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Delete" android:onClick="confirmDelete...
