Book Image

Hands-On Mobile and Embedded Development with Qt 5

By : Lorn Potter
Book Image

Hands-On Mobile and Embedded Development with Qt 5

By: Lorn Potter

Overview of this book

Qt is a world-class framework, helping you to develop rich graphical user interfaces (GUIs) and multi-platform applications that run on all major desktop platforms and most mobile or embedded platforms. The framework helps you connect the dots across platforms and between online and physical experience. This book will help you leverage the fully-featured Qt framework and its modular cross-platform library classes and intuitive APIs to develop applications for mobile, IoT, and industrial embedded systems. Considerations such as screen size, device orientation changes, and small memory will be discussed. We will focus on various core aspects of embedded and mobile systems, such as connectivity, networking, and sensors; there is no IoT without sensors. You will learn how to quickly design a flexible, fast, and responsive UI that looks great. Going further, you will implement different elements in a matter of minutes and synchronize the UI elements with the 3D assets with high precision. You will learn how to create high-performance embedded systems with 3D/2D user interfaces, and deploy and test on your target hardware. The book will explore several new features, including Qt for WebAssembly. At the end of this book, you will learn about creating a full software stack for embedded Linux systems using Yocto and Boot to Qt for Device Creation.
Table of Contents (23 chapters)
Title Page
Dedication
About Packt
Foreword
Contributors
Preface
Index

Registering on Android Google Play


Selling mobile applications is often hit-and-miss; only a few apps that are available to buy actually make money. One of the best ways to make money at the moment is to make your application free to download, but to include in-app purchases. That way, people get to try out your app but also have the opportunity to make purchases if they want enhanced play. This section presumes you have already registered your app to the relevant mobile store. To activate in-app purchases, you first need to register the things you intend to sell. This has its own benefits, as it allows testers to buy and install things you intend to sell.

Let's take a look at how to do this on Android devices first:

  1. You will first need to register for a Google Developers account in order to create an application that will be available in Google Play Store, https://developer.android.com.
  2. You will also need to add and edit the AndroidManifest.xml file.

In Qt Creator, navigate to:Projects | Build...