20Advanced Android Development


This chapter returns to some of the possibilities touched on in previous chapters and introduces some of the more advanced options available for Android developers.

The chapter starts by taking a closer look at security—in particular, how permissions work and how to define your own permissions and use them to secure your own applications and the data they contain.

Next, the chapter examines how to build applications that are backward and forward compatible across a range of hardware and software platforms, as well as investigating the use of Strict Mode for discovering inefficiencies within your applications.

You are also introduced to Android’s telephony APIs and learn to use them to make outgoing calls, monitor phone state, and receive broadcast Intents for incoming calls. Finally, ...

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