Book Image

Mobile DevOps

By : Rohin Tak, Jhalak Modi
Book Image

Mobile DevOps

By: Rohin Tak, Jhalak Modi

Overview of this book

Today's world is all about perfection, and there are hundreds of applications that are released each day out of which only a few succeed. Making sure that the app looks, performs, and behaves as expected is one of the biggest challenge developers face today. The main goal of this book is to teach developers to implement DevOps to build, test, and deliver. This book will teach you to implement Mobile DevOps at every stage of your application's lifecycle with Visual Studio and Xamarin Mobile Lifecycle solutions. Later, it will also show you how to leverage Mobile Center's continuous integration and automated testing to develop a high-quality applications. Next, you’ll see how to mobilize your on-premises data to the cloud and increase your productivity with code reuse. Finally, you’ll discover how to find and fix bugs beforehand, improving the efficiency of your application while it is being developed. By the end of this book, you will be well-versed with Mobile DevOps techniques, delivering high quality and high performance mobile apps.

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Table of Contents (13 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
Introduction
Introduction
Introduction to DevOps
Introduction to mobile DevOps
DevOps versus mobile DevOps
Challenges of applying DevOps to mobiles
Summary
2
Working with Code Repository Systems
Working with Code Repository Systems
Source code management
Creating an account with GitHub and using Git to create a repository
Managing organization users and teams
Installing Git on different servers
Configuring SSH keys
Summary
3
Cross-Platform Mobile App Development with Xamarin
Cross-Platform Mobile App Development with Xamarin
History of Xamarin
Why you should learn Xamarin
Installing Visual Studio and Xamarin on Windows
Setting up our Android Virtual Device for development
Summary
4
Writing Your First Android Application with Xamarin
Writing Your First Android Application with Xamarin
Create your first Android project
Xamarin solution structure
Creating the UI for the application
Handling user interactions
Adding permissions to Android Manifest
Adding an icon for the Android app
Testing user interaction
Application fundamentals
Android APIs
Resources
Understanding Activities
Activity class
Deploying an application on a mobile device
Enable debugging on the device
Install USB drivers
Connect the device to a computer
Pushing code to a Git repository
Summary
5
Implementing Automatic Testing Using Xamarin
Implementing Automatic Testing Using Xamarin
Understanding the importance of automation testing in the DevOps cycle
Testing a mobile application
Writing tests with Xamarin.UITest
Recall the application code
Steps to include in the test
Using Xamarin Test Cloud to test on multiple devices
Creating users and organizations on Test Cloud
Creating a test run for your application
Summary
6
Configuring TeamCity for CI/CD with Xamarin
Configuring TeamCity for CI/CD with Xamarin
Introduction to continuous integration
Using TeamCity with Xamarin for CI/CD
Preparing the build server
Creating a build script
Installing and configuring TeamCity
Summary
7
CI/CD for Android with Visual Studio Team Services
CI/CD for Android with Visual Studio Team Services
Creating an account in Visual Studio
Getting the code from GitHub
Creating the build definition
Configuring the build definition
Queue build
Triggers - build with every commit
Summary
8
Deploying Applications on AWS
Deploying Applications on AWS
Creation of an instance
Creating an Elastic Load Balancer, launch configuration, and Auto Scaling Groups
IAM roles
Summary
9
Monitoring and Optimizing Application
Monitoring and Optimizing Application
API level monitoring
Various tools for API monitoring
Using Test Cloud for monitoring
Using Android monitoring tools
Summary
10
Debugging the Application
Debugging the Application
Terminology
Debugging with Xamarin on Visual Studio
Debugging Mono class libraries
Android debug log
Debugging Git connections
Summary
11
Case Studies
Case Studies
Case study 1 - Hello World GUI
Case study 2 - ButtonWidget
Summary
12
Other Books You May Enjoy
Other Books You May Enjoy
Leave a review - let other readers know what you think

Testing user interaction

Click on the app on Android Emulator and run it. Repeat the previous steps of testing the application and at the end press the CALL button to make a call:

This time, the application has the required permission, we have written the code to handle CALL button interaction, and we are creating a callIntent in MainActivity.cs to make a call.

So, the call should be placed by clicking the CALL button, and we should get a screen as shown in the following screenshot:

Awesome! You just created your first working Android application using Xamarin and C# in Visual Studio.

Now that we have done the difficult part, let's understand some fundamentals of the Android application we just developed and see how it all comes together.

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