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Delphi GUI Programming with FireMonkey

You're reading from   Delphi GUI Programming with FireMonkey Unleash the full potential of the FMX framework to build exciting cross-platform apps with Embarcadero Delphi

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Product type Paperback
Published in Oct 2020
Publisher Packt
ISBN-13 9781788624176
Length 546 pages
Edition 1st Edition
Languages
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Author (1):
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Andrea Magni Andrea Magni
Author Profile Icon Andrea Magni
Andrea Magni
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Table of Contents (18) Chapters Close

Preface 1. Section 1: Delphi GUI Programming Frameworks
2. Introducing the FireMonkey Framework FREE CHAPTER 3. Exploring Similarities and Differences with VCL 4. Section 2: The FMX Framework in Depth
5. Mastering Basic Components 6. Discovering Lists and Advanced Components 7. Using FireDAC in FMX Applications 8. Implementing Data Binding 9. Understanding FMX Style Concept 10. Divide and Conquer with TFrameStand 11. Building Responsive UIs 12. Orchestrating Transitions and Animations 13. Section 3: Pushing to The Top: Advanced Topics
14. Building Responsive Applications 15. Exploring Cross-Platform Services 16. Learning about FMX 3D Capabilities 17. Other Books You May Enjoy

Basic event handling

As we have talked about buttons on list view items, you may now ask how event handling should be dealt with, for example, to react to the user clicking or tapping on an item's text button.

Generally speaking, you are always clicking on the item, even if you are aiming to click on a specific part (a specific drawable) of it. The TListView class provides you with some convenient events you can handle in order to implement the desired behavior:

  • OnClick / OnDblClick: These are very standard events to capture the click/double-click on the whole TListView component. No specific information is provided within the event handler, so you can only rely on properties such as TListView.Selected, but beware of timing (at the point when you are clicking on an item, the Selected property will still refer to the previously selected one).
  • OnItemClick: The event handler for this event will be supplied with a reference...
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