Book Image

Delphi GUI Programming with FireMonkey

By : Andrea Magni
4 (1)
Book Image

Delphi GUI Programming with FireMonkey

4 (1)
By: Andrea Magni

Overview of this book

FireMonkey (FMX) is a cross-platform application framework that allows developers to create exciting user interfaces and deliver applications on multiple operating systems (OS). This book will help you learn visual programming with Delphi and FMX. Starting with an overview of the FMX framework, including a general discussion of the underlying philosophy and approach, you’ll then move on to the fundamentals and architectural details of FMX. You’ll also cover a significant comparison between Delphi and the Visual Component Library (VCL). Next, you’ll focus on the main FMX components, data access/data binding, and style concepts, in addition to understanding how to deliver visually responsive UIs. To address modern application development, the book takes you through topics such as animations and effects, and provides you with a general introduction to parallel programming, specifically targeting UI-related aspects, including application responsiveness. Later, you’ll explore the most important cross-platform services in the FMX framework, which are essential for delivering your application on multiple platforms while retaining the single codebase approach. Finally, you’ll learn about FMX’s built-in 3D functionalities. By the end of this book, you’ll be familiar with the FMX framework and be able to build effective cross-platform apps.
Table of Contents (18 chapters)
Section 1: Delphi GUI Programming Frameworks
Section 2: The FMX Framework in Depth
Section 3: Pushing to The Top: Advanced Topics

Learning about the TOrdersFrame frame 

One of the functionalities of our basic app is to provide the user with a list of orders (this could be any other kind of dataset). This is what TOrdersFrame is there for and it is tied to the Orders state of our application.

When the user selects (taps) the Orders function icon in the Home view, a call to the MainData.GoToOrders method is performed, the app state changes to Orders, and a TAppStateChanged message is delivered to the message dispatcher. MainForm will handle the message, trying to have a TOrdersFrame instance inside a FrameStand presented to the user, as shown in the following screenshot:

Figure 8.8

TOrdersFrame is essentially composed of a TToolbar and a TListView component. The toolbar will be at the top of the frame and will host a button to go back to the Home view (please note this is done by asking the MainData data module to update the application state and not by simply closing the view). The...