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iOS Programming Cookbook

You're reading from   iOS Programming Cookbook Over 50 exciting and powerful recipes to help you unearth the promise of iOS programming

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781786460981
Length 520 pages
Edition 1st Edition
Languages
Tools
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Toc

Table of Contents (16) Chapters Close

Preface 1. Swift Programming Language FREE CHAPTER 2. The Essentials 3. Integrating with Messages App 4. Working with Interface Builder 5. Working with UITableView 6. Animations and Graphics 7. Multimedia 8. Concurrency 9. Location Services 10. Security and Encryption 11. Networking 12. Persisting Data with Core Data 13. Notifications 14. App Search 15. Optimizing Performance

Measuring energy impact

All users suffer from the draining of the life of their mobile phone's battery during usage. What a frustrating moment when you see your phone is about to die and you don't have access to any power supply. Developers, your device, and the operating system are all involved in taking care of the battery life. Any inefficient way of performing a task in the app may cause an impact on the battery life and needs your intervention to do it in a better way. In this recipe, we will see how to measure the app energy usage from Instruments.

How to do it...

  1. Pick any Xcode project you have, and click on Profile.
  2. Choose Energy Log from the following list of instruments:
  1. Choose the device/simulator...
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