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.

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Table of Contents (17 chapters)
Android Studio Cookbook
Android Studio Cookbook
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Welcome to Android Studio
Welcome to Android Studio
Introduction
Creating your first app called Hello Android Studio
The use of Gradle build scripts
Testing your app with an emulator called Genymotion
Refactoring your code
2
Applications with a Cloud-based Backend
Applications with a Cloud-based Backend
Introduction
Setting up Parse
Consuming data from the cloud
Submitting data to the cloud
3
Material Design
Material Design
Introduction
Reycler views and card views
Ripples and elevations
Great transitions
4
Android Wear
Android Wear
Wearables
Fullscreen wearable app
Watch faces
Notifications
5
Size Does Matter
Size Does Matter
Size and context
Phone, phablet, and tablet
Media playback
TV and media centre
6
Capture and Share
Capture and Share
Introduction
Capturing images the easy way
Image capturing using the Camera2 API
Image sharing
Orientation issues
7
Content Providers and Observers
Content Providers and Observers
Introduction
Content providers
Consuming and updating data using a content provider – daily thoughts
Change projections to display KPIs in your app
Communicate with other apps using content providers
8
Improving Quality
Improving Quality
Introduction
Patterns and support annotations
Unit testing using Robolectric
Code analysis
9
Improving Performance
Improving Performance
Introduction
Memory profilers and performance tools
Here comes the bad app – performance improvements
Overdraw issues
10
Beta Testing Your Apps
Beta Testing Your Apps
Introduction
Build variants
Runtime permissions
Play Store beta distribution
Index
Index

Chapter 7. Content Providers and Observers

In most apps, we need to persist data and often use SQLite for this purpose.

A very common situation is that of the list and detail views. By using content providers, we do not just provide a way of communication between apps but also save ourselves much work in our own app.

In this chapter, you will learn about:

  • Content providers

  • Consuming and updating data using a content provider

  • Changing projections to display Key Performance Indicators (KPIs) in your app

  • Communicating with other apps using content providers

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