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

Search capabilities

Every TListView component has a built-in search capability to let the user quickly filter the items in the list. Simply set the SearchVisible property to True to see a search box on the top of your list view where the user can input some text and have convenient filtering of the list items. An event, TListView.OnSearchChange, is provided to be notified when the search text is changed, just in case you need to know that the list has been updated after the user changed the search text, as shown in the following screenshot:

Figure 4.11

The preceding screenshot shows the search box provided by TListView to filter list items.

If you don't want to rely on built-in search capabilities, you can use the OnFilter event handler and implement your own UI elements to collect input from the user and implement the filter function.

Filtering is done against the Text value of each item, so you might need to implement some other advanced...