Dialogs demand attention and input from the user. They are useful for presenting a choice or important information. In this chapter, you will add a dialog in which users can change the date of a crime. Pressing the date button in CrimeFragment will present this dialog (Figure 12.1).

Figure 12.1  A dialog for picking the date of a crime

A dialog for picking the date of a crime

The dialog in Figure 12.1 is an instance of AlertDialog, a subclass of Dialog. AlertDialog is the all-purpose Dialog subclass that you will use most often.

(There is a DatePickerDialog subclass of AlertDialog that sounds perfect for what you are doing. However, as of this writing DatePickerDialog has some ...

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