Chapter 24. Data Loading
In the last two chapters of this book, you will investigate several issues that affect app performance and learn about more ways to optimize your apps. You will not build your own app in this section of the book; instead, you will work with an app we provide for you in your downloaded resources file.
In this chapter, you will examine the amount of data coming across the network and its effect on performance. You will also see two ways you can improve the performance of apps: keeping an eye on the size of image files and using lazy loading for large files that you do not need throughout the app.
Begin by setting up the Performance Penguins application. In your downloaded resources file, locate the performance folder. ...
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