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How did I learn to program for the iPhone Did I pay for night courses Did I read a bunch of books Neither I learned under trial by fire. Have you ever taken a clock or some other electronic device apart to see how it works I bet you were able to put it back together with a morsel of confidence once you knew why everything was where it was. It s the same with programming to some extent. Breaking apart an existing program and looking at the code is the best way to learn, if you ask me. Maybe you like how-to books, but they always seem to put me to sleep. I like tutorials and example files. Sitting in a class does me no good either: it s all in one ear and out the other. The iPhone developer community was almost nonexistent at the time, since the NDA was still alive and kicking, so there were only a handful of blog-posted tutorials and one unofficial forum. Luckily, Apple was kind enough to publish a library of sample code files; little how-to articles that were perfect for learning specific techniques. Programming Snow Reports as a whole was a very daunting task for me, so I decided instead to break my application down into numerous miniature applications. These little applications were easier to tackle, and this way, I had a good milestone system to keep me going:
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CHAPTER 10: Snow Reports for the iPhone
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I needed two main views: one to view resort data and the other for managing the resorts I wanted to track. I also wanted these two views to flip, just like the native Weather application. For this, I used the Xcode utility template as a starting point. To view tracked resorts I needed a scroll view that handled multiple subviews, and luckily, Apple provided a sample PageControl application that did just this. I need to connect to a web service, which after a good bit of Googling, I found a great code sample for on a random blog. I needed to store data on the phone, holding a list of IDs for the resorts a user would want to track. This also came from a great code sample on a random blog. At this point, I had four simple little applications, each one of them did one thing well. I used the first application as my primary one and just started bringing in code from the other miniature applications until everything was together in one: hook this up to that; plug that into this, and voil ! Now, hooking these together took a bit of tinkering and didn t always go so smoothly, but doing it this way got me not only a complete application quickly but some real experience with code, not just with a book, giving me the confidence to code the rest on my own. TIP: Version control will save your life one day, so I recommend you start using it now. I know for a fact that one or two weeks of backtracking and shouting why doesn t this work today! would have occurred if I didn t have good version control in place for Snow Reports. I ve used Subversion before when working with a larger agency, and I have never been pleased with it, so I roll with Git. Git is super lightweight, easy for a designer to understand, and doesn t require a complex server-repository thingy to use, unless you have multiple people working on your application at the same time. Once you install Git, using it is as easy as initializing a Git repository right in your projects directory, adding any files you create to the repository, and making commits whenever you want to log a point that you might need to come back to. Version control really will save you, so please look into it, or have a friend who knows it help you with it.
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