July 2016
Beginner to intermediate
282 pages
6h 12m
English
Content preview from Learning Embedded Android N ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Device permissions
As we have seen in previous chapters, Android is based on Linux, so it also inherits the part that concerns user permissions. As with a standard Linux system, Android also manages everything through groups and users. In the default configuration, it's not possible to obtain administrator (root) access, in order to prevent tampering with the system. Also, with access to the whole operating system, it's easy to corrupt the system itself, accidentally or deliberately (for example, to steal user data using a virus).
Every Android app, when installed on the system, generates a new user and group, and inter-app communications are performed according to Android SDK constraints and protocols. Sometimes, though, it's useful to have complete ...
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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.