May 2022
Intermediate to advanced
688 pages
20h 12m
English
book
Android Programming: The Big Nerd Ranch Guide, 5th Edition
by Bryan Sills, Brian Gardner, Kristin Marsicano, Chris Stewart
Content preview from Android Programming: The Big Nerd Ranch Guide, 5th Edition
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Device Configuration Changes and the Activity Lifecycle
Rotating the device changes the device configuration. The device configuration is a set of characteristics that describe the current state of an individual device. The characteristics that make up the configuration include screen orientation, screen density, screen size, keyboard type, dock mode, language, and more.
Applications can provide alternative resources to match device configurations. When a runtime configuration change occurs, there may be resources that are a better match for the new configuration. So Android destroys the activity, looks for resources that are the best fit for the new configuration, and then rebuilds a new instance of the activity with those resources. ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.