Book Image

Android 9 Development Cookbook - Third Edition

By : Rick Boyer
Book Image

Android 9 Development Cookbook - Third Edition

By: Rick Boyer

Overview of this book

The Android OS has the largest installation base of any operating system in the world. There has never been a better time to learn Android development to write your own applications, or to make your own contributions to the open source community! With this extensively updated cookbook, you'll find solutions for working with the user interfaces, multitouch gestures, location awareness, web services, and device features such as the phone, camera, and accelerometer. You also get useful steps on packaging your app for the Android Market. Each recipe provides a clear solution and sample code you can use in your project from the outset. Whether you are writing your first app or your hundredth, this is a book that you will come back to time and time again, with its many tips and tricks on the rich features of Android Pie.
Table of Contents (24 chapters)
Title Page
Copyright and Credits
Dedication
About Packt
Contributors
Preface
Index

Responding to hardware media controls in your app


Having your app respond tomedia controls (like on headphones), such as Play, Pause, Skip, and so on, is a nice touch your users will appreciate.Android makes this possible through the media library. As with the Playing sound effects with SoundPool recipe earlier, the Lollipop release changed how this is done. Unlike theSoundPoolexample, this recipe is able to take advantage of another approach, the compatibility library.

This recipe will show you how to set upMediaSessionto respond to the hardware buttons, which will work on Lollipop and later, as well as previous Lollipop versions using theMediaSessionCompatlibrary. (The compatibility library will take care of checking the OS version and using the correct API calls automatically.)

Getting ready

Create a new project in Android Studio and call itHardwareMediaControls.  Use the default Phone & Tablet options and select Empty Activity on the Add an Activityto Mobile dialog.

How to do it...

We...