July 2015
Beginner to intermediate
600 pages
18h 59m
English
book
Android Programming: The Big Nerd Ranch Guide, 2nd Edition
by Bill Phillips, Chris Stewart, Brian Hardy, Kristin Marsicano
Content preview from Android Programming: The Big Nerd Ranch Guide, 2nd Edition
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How Android Sees Your Activities
Let’s look at what is going on OS-wise as you move between activities. First, when you click on the GeoQuiz app in the launcher, the OS does not start the application; it starts an activity in the application. More specifically, it starts the application’s launcher activity. For GeoQuiz, QuizActivity is the launcher activity.
When the New Application wizard created the GeoQuiz application and QuizActivity, it made QuizActivity the launcher activity by default.
Launcher activity status is specified in the manifest by the intent-filter element in QuizActivity’s declaration (Listing 5.18).
Listing 5.18 QuizActivity declared as launcher activity (AndroidManifest.xml)
<?xml version="1.0" encoding="utf-8"?> ...
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