Book Image

Delphi Programming Projects

By : William Duarte
Book Image

Delphi Programming Projects

By: William Duarte

Overview of this book

Delphi is a cross-platform programming language and software development kit that supports rapid application development for Microsoft Windows, Apple Mac OS X, Android, and iOS. With the help of seven practical projects, this book will guide you through the best practices, Delphi Run-Time Library (RTL) resources, and design patterns. Whether you use the Visual Component Library (VCL) or FireMonkey (FMX) framework, these design patterns will be implemented in the same way in Delphi, using Object Pascal. In the first few chapters, you will explore advanced features that will help you build rich applications using the same code base for both mobile and desktop projects. In addition to this, you’ll learn how to implement microservice architecture in Delphi. As you get familiar with the various aspects of Delphi, you will no longer need to maintain source code for similar projects, program business rules on screens, or fill your forms with data access components. By the end of this book, you will have gained an understanding of the principles of clean code and become proficient in building robust and scalable applications in Delphi.
Table of Contents (9 chapters)

Creating Android services

An Android service is a non-UI application that performs tasks in the background.

There are essentially two types of service:

  • Start service: This service is started by an Android application. The service may run in the background indefinitely, even if the application is closed.

  • Bind service: This service only works while it is connected to an Android application. More than one application can connect to the same service.

Let's create an Android Service by performing the following steps:

  1. Create a new Delphi project by going to File | New| Delphi. Notice that we have the Android Service option, as follows:

  1. Select this option. Then, we need to define the service option that we want to create; in our case, we will choose Local Service:

  1. After this process, the project will be loaded into the IDE; in Project Manager (Ctrl + Alt + F11...