Book Image

Android Studio Cookbook

By : Mike van Drongelen
Book Image

Android Studio Cookbook

By: Mike van Drongelen

Overview of this book

This book starts with an introduction of Android Studio and why you should use this IDE rather than Eclipse. Moving ahead, it teaches you to build a simple app that requires no backend setup but uses Google Cloud or Parse instead. After that, you will learn how to create an Android app that can send and receive text and images using Google Cloud or Parse as a backend. It explains the concepts of Material design and how to apply them to an Android app. Also, it shows you how to build an app that runs on an Android wear device. Later, it explains how to build an app that takes advantage of the latest Android SDK while still supporting older Android versions. It also demonstrates how the performance of an app can be improved and how memory management tools that come with the Android Studio IDE can help you achieve this. By the end of the book, you will be able to develop high quality apps with a minimum amount of effort using the Android Studio IDE.
Table of Contents (17 chapters)
Android Studio Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Image capturing using the Camera2 API


Let us share the world around us with the ones we love. It all starts with previewing and capturing it. That is what this recipe is all about. We will also go back to those good old days when photos were sepia toned.

There are many apps, such as Instagram, that provide options to add filters or effects to your photos. What would happen if sepia were the only option for filtering and sharing your pictures? Maybe we can set a trend. #EverybodyLovesSepia!

We will be using the Camera2 API to capture an image, based on Google's Camera2 Basic sample that is available on GitHub. As a reference for the steps in the recipe, you can have a look at the following class diagram. It will make clear what classes we are dealing with and how they interact with each other:

We will investigate what exactly is in there, and once you have found out what is going on, we will add a little bit of ourselves to it by making the preview and the captured image appear in sepia (or...