Chapter 8

It’s (Finally) Time to Code

In This Chapter

arrow Determining Internet availability

arrow Using the debugger

arrow Using breakpoints to examine runtime behavior

Yes, it’s finally time to start coding, although this chapter doesn’t get you going on the RoadTrip app functionality itself yet (the example app developed in this book). In this chapter, I show you some code you have to include to make sure that your app isn’t rejected out of hand by Apple.

Next, I give you an introduction to your new friend, the debugger. While some of you out there (but not me) may code perfectly, most developers make some mistakes as they develop an app. Fortunately, the debugger in Xcode starts helping you right from the start — so you want to understand how to use it as soon as you start coding.

Checking for Network Availability

One of the easiest ways to get your app rejected by Apple is to fail to make sure that you have an Internet connection when your app needs it, and therefore fail to notify the user that the functionality that requires the connection will be unavailable (or even worse, have your app just hang there).

Downloading the Reachability sample

Apple provides a sample app called Reachability ...

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