Book Image

Android Studio 4.1 Development Essentials – Java Edition

By : Neil Smyth
Book Image

Android Studio 4.1 Development Essentials – Java Edition

By: Neil Smyth

Overview of this book

For developers, Android 11 has a ton of new capabilities. The goal of this book is to teach the skills necessary to develop Android-based applications using the Java programming language. This book begins with the steps necessary to set up an Android development and testing environment. An overview of Android Studio along with the architecture of Android is covered next, followed by an in-depth look at the design of Android applications and user interfaces using the Android Studio environment. You will also learn about the Android architecture components along with some advanced topics such as touch screen handling, gesture recognition, the recording and playback of audio, app links, dynamic delivery, the AndroidStudio profiler, Gradle build configuration, and submitting apps to the Google Play Developer Console. The concepts of material design, including the use of floating action buttons, Snackbars, tabbed interfaces, card views, navigation drawers, and collapsing toolbars are a highlight of this book. This edition of the book also covers printing, transitions, and cloud-based file storage; the foldable device support is the cherry on the cake. By the end of this course, you will be able to develop Android 11 Apps using Android Studio 4.1, Java, and Android Jetpack. The code files for the book can be found here: https://www.ebookfrenzy.com/retail/androidstudio41/index.php
Table of Contents (88 chapters)
88
Index

61.4 Implementing the Remote Bound Service

In order to implement the remote bound service for this example, add a new class to the project by right-clicking on the package name (located under app -> java) within the Project tool window and select the New -> Service -> Service menu option. Specify RemoteService as the class name and make sure that both the Exported and Enabled options are selected before clicking on Finish to create the class.

The next step is to implement the handler class for the new service. This is achieved by extending the Handler class and implementing the handleMessage() method. This method will be called when a message is received from the client. It will be passed a Message object as an argument containing any data that the client needs to pass to the service. In this instance, this will be a Bundle object containing a string to be displayed to the user. The modified class in the RemoteService.java file should read as follows once this has been...