Book Image

Delphi Cookbook - Second Edition

By : Daniele Teti
Book Image

Delphi Cookbook - Second Edition

By: Daniele Teti

Overview of this book

Delphi is a cross-platform Integrated Development Environment (IDE) that supports rapid application development for Microsoft Windows, Apple Mac OS X, Google Android, and Apple iOS. It helps you to concentrate on the real business and save yourself the pain of wandering amid GUI widget details, or having to tackle inter-platform incompatibilities. It also has a wide range of drag-and-drop controls, helping you code your business logic into your business model, and it compiles natively for desktop and mobile platforms. This book will teach you how to design and develop applications, deploy them on the cloud platform, and distribute them within an organization via Google Play and other similar platforms. You will begin with the basics of Delphi and get acquainted with JSON format strings, XSLT transformations, unicode encodings and various types of streams. We then move on to more advanced topics such as developing higher-order functions and using enumerators and RTTI. You will get an understanding of how Delphi RTL functions and how to use FireMonkey in a VCL application. We will then cover topics such as multithreading, using the parallel programming library and putting Delphi on a server. We will also take a look at the new feature of WebBroker Apache modules and then ride the mobile revolution with FireMonkey. By the end of the book, you will be able to develop and deploy cross-platform applications using Delphi .
Table of Contents (10 chapters)
9
Index

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, or simply as a 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, but simply deliver them within the app. Later, we'll see how to download them from the network.

To deploy additional files within our app, we've to use the Deployment Manager accessible by navigating to Project | Deployment. If you need to know how to use it, check the Embarcadero documentation (http://docwiki.embarcadero.com/RADStudio/en/Deployment_Manager).

The additional...