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Delphi Cookbook

You're reading from   Delphi Cookbook 50 hands-on recipes to master the power of Delphi for cross-platform and mobile development on Windows, Mac OS X, Android, and iOS

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Product type Paperback
Published in Sep 2014
Publisher
ISBN-13 9781783559589
Length 328 pages
Edition 1st Edition
Languages
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Author (1):
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Daniele Teti Daniele Teti
Author Profile Icon Daniele Teti
Daniele Teti
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Toc

Table of Contents (9) Chapters Close

Preface 1. Delphi Basics FREE CHAPTER 2. Become a Delphi Language Ninja 3. Going Cross Platform with FireMonkey 4. The Thousand Faces of Multithreading 5. Putting Delphi on the Server 6. Riding the Mobile Revolution with FireMonkey 7. Using Specific Platform Features Index

Making a phone call from your app!


Many mobile devices, especially in the consumer market, are phones or are devices that can make phone calls. In some cases, your mobile app may have the ability to make a call or just to monitor the incoming or outgoing calls.

Getting ready

In this recipe, we'll see how to make a call and how to monitor the current calls as well. Also, in this case, the useful FireMonkey platform services framework come handy.

How to do it...

  1. Create a new mobile app by navigating to File | New | FireMonkey mobile application – Delphi.

  2. Select the Header/Footer template and click on OK.

  3. Drop the following components on the main form:

    • TEdit (edtPhoneNumber)

    • TButton (btnCall)

    • TListBox (lbCalls)

    • TListBox (lbInfo)

  4. Arrange the components as shown in the following screenshot:

    The form with all the controls arranged

  5. Put some labels to explain what the listboxes will contain, as shown in the preceding screenshot.

  6. Now, create the FormCreate event handler and fill it with this code:

    procedure...
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