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

Creating a slideshow with ViewPager


This recipe will show you how to create a slideshow using the ViewPager class. Here is a screenshot showing a transition from one picture to another:

Getting ready

Create a new project in Android Studio and call it SlideShow. Use the default Phone & Tablet options and select Empty Activity when prompted for the Activity Type.

We need four images for the slideshow.

How to do it...

We'll create a Fragment to display each image for our slideshow, then set up ViewPager in the Main Activity. Here are the steps:

  1. Copy four images to the /res/drawable folder and name them slide_0 through slide_3, keeping the original file extensions.
  2. Create a new layout file called fragment_slide.xml using the following XML:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
    <android.support.v7.widget...