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Beginning Android, Fifth Edition by Grant Allen

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Chapter    23

Communicating with Notifications

One of the enduring features of all operating systems is their ability to seek your attention, calling you to action for some form of notification. Whether it is the arrival of a new email or an SMS message from a friend, a low battery warning, the confirmation of a purchase, or traffic alerts, notifications in Android are all about trying to get your attention.

Android devices have a range of ways to notify you that we explore in this chapter. The familiar tray icons that appear at the top of the Android launcher are likely familiar to you. After the examples of using dialog boxes earlier in the book, you should know all about pop-up style messages, and you might even have seen their downside—applications ...

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