Book Image

Delphi Cookbook - Third Edition

By : Daniele Spinetti, Daniele Teti
Book Image

Delphi Cookbook - Third Edition

By: Daniele Spinetti, Daniele Teti

Overview of this book

Delphi is a cross-platform integrated development environment (IDE) that supports rapid application development on different platforms, saving you the pain of wandering amid GUI widget details or having to tackle inter-platform incompatibilities. Delphi Cookbook begins with the basics of Delphi and gets you acquainted with JSON format strings, XSLT transformations, Unicode encodings, and various types of streams. You’ll then move on to more advanced topics such as developing higher-order functions and using enumerators and run-time type information (RTTI). As you make your way through the chapters, you’ll understand Delphi RTL functions, use FireMonkey in a VCL application, and cover topics such as multithreading, using aparallel programming library and deploying Delphi on a server. You’ll take a look at the new feature of WebBroker Apache modules, join the mobile revolution with FireMonkey, and learn to build data-driven mobile user interfaces using the FireDAC database access framework. This book will also show you how to integrate your apps with Internet of Things (IoT). By the end of the book, you will have become proficient in Delphi by exploring its different aspects such as building cross-platforms and mobile applications, designing server-side programs, and integrating these programs with IoT.
Table of Contents (12 chapters)

Displaying PDF files in your app

In the mobile world, often you need to show your user PDF files. Maybe these PDF files are used as reports (usually generated by some reporting tool on the remote server), as a statement about something that the user should do, which is in the form of a small book products catalog. So, how do we display a PDF deployed within the app, or downloaded from some remote server and stored locally? How do we do it on Android and iOS? This is the topic of this recipe.

Getting ready

Let's say we have to create an app that contains some PDF files. In this case, we don't download the files, we simply deliver them within the app. Later, we'll see how to download them from the network.

To...