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Android Programming for Beginners

Android Programming for Beginners

By : John Horton
3.8 (13)
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Android Programming for Beginners

Android Programming for Beginners

3.8 (13)
By: John Horton

Overview of this book

Are you trying to start a career in programming, but haven't found the right way in? Do you have a great idea for an app, but don't know how to make it a reality? Or maybe you're just frustrated that in order to learn Android, you must know Java. If so, then this book is for you. This new and expanded second edition of Android Programming for Beginners will be your companion to create Android Pie applications from scratch. We will introduce you to all the fundamental concepts of programming in an Android context, from the basics of Java to working with the Android API. All examples use the up-to-date API classes, and are created from within Android Studio, the official Android development environment that helps supercharge your application development process. After this crash course, we'll dive deeper into Android programming and you'll learn how to create applications with a professional-standard UI through fragments and store your user's data with SQLite. In addition, you'll see how to make your apps multilingual, draw to the screen with a finger, and work with graphics, sound, and animations too. By the end of this book, you'll be ready to start building your own custom applications in Android and Java.
Table of Contents (33 chapters)
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32
Index

Using the Fragment classes and their layouts

This stage has three steps. First, we need to edit the menu of the Navigation Drawer to reflect the options the user has. Next, we need a View in the layout to hold whatever the active Fragment instance is, and finally, we need to add code to MainActivity.java to switch between the different Fragment instances when the user taps on the menu.

Editing the Navigation Drawer menu

Open the activity_main_drawer.xml file in the res/menu folder of the project explorer. Edit the code within the group tags that we saw earlier to reflect our menu options of Insert, Delete, Search, and Results:

<group android:checkableBehavior="single">
   <item
         android:id="@+id/nav_insert"
         android:icon="@drawable/ic_menu_camera"
         android:title="Insert" />
   <item
         android:id="@+id/nav_delete"
         android:icon="@drawable/ic_menu_gallery"
         android:title...
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