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Android 9 Development Cookbook

You're reading from   Android 9 Development Cookbook Over 100 recipes and solutions to solve the most common problems faced by Android developers

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Product type Paperback
Published in Oct 2018
Publisher Packt
ISBN-13 9781788991216
Length 464 pages
Edition 3rd Edition
Languages
Tools
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Author (1):
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Rick Boyer Rick Boyer
Author Profile Icon Rick Boyer
Rick Boyer
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Toc

Table of Contents (18) Chapters Close

Preface 1. Activities FREE CHAPTER 2. Layouts 3. Views, Widgets, and Styles 4. Menus and Action Mode 5. Fragments 6. Home Screen Widgets, Search, and the System UI 7. Data Storage 8. Alerts and Notifications 9. Using the Touchscreen and Sensors 10. Graphics and Animation 11. A First Look at OpenGL ES 12. Multimedia 13. Telephony, Networks, and the Web 14. Location and Using Geofencing 15. Getting Your App Ready for the Play Store 16. Getting Started with Kotlin 17. Other Books You May Enjoy

Using Contextual Batch Mode with RecyclerView

As discussed in the previous recipe, Contextual Mode supports two forms of use: single View mode (as demonstrated) and multiple selection (or batch) mode. Batch mode is where Contextual Mode outperforms the old-style context menu as multiple selections were not supported.

If you've ever used an email app such as Gmail or a file browser, you've probably seen Contextual Mode when selecting multiple items. Here is a screenshot from Solid Explorer, which shows an excellent implementation of Material Theme and Contextual Mode:

When we introduced RecyclerView in Chapter 2, Layouts, we discussed how many features from the old ListView were not already included in the new RecyclerView. Multiple item selection is one of the most missed features. In this recipe, we will demonstrate multiple item selection with theĀ RecyclerView...

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