Building iPhone Apps with HTML, CSS, and JavaScript [ペーパーバック]

I am a developer, but I know nothing about the iPhone or iPhone app development, so this book sounded perfect for me. It's a very quick read: I read the whole book (< 160 pages) on a 3 hour flight to Boston. The prose is clear with very little fluff, but did I learn much about iPhone apps with HTML, CSS and Javascript? This raises the big question that was not clear to me when I started reading: who is this book for? It is clear that this book is not for someone who has no prior knowledge of HTML or CSS, or JavaScript. The tutelage on HTML and CSS is razor-thin. If you do not understand these languages, your head will swim very quickly. I have worked with both languages for a couple years, and yet I felt pretty unsatisfied with the skeletal explanations of some of the examples. The Javascript coverage was even more spartan. I am not a Javascript person; I know just enough to tweak simple code I have found on the Internet. I have no clue to some of the book's example code and what it means. Overall, I found this book was not written to be a tutorial at all. It is a bare introduction to the iPhone environment for a developer who has considerable experience in these languages. And to Stark's credit, he does does state in the Preface that this book is for people with "basic experience reading and writing HTML, CSS, and JavaScript (jQuery in particular)". I was not aware of this assumption, so be aware that you may have some rough going. On the up-side, however, there is some very interesting material in this book. I did learn something about the iPhone development environment, and the iPhone style of presentation. Now I know to look into Cocoa, jQuery and JQTouch. I also have to credit Stark for exactly limiting his presentation to provide a development option to Objective-C and submitting to the Apple Store. His last two chapters really interested me. Using PhoneGap to convert an iPhone web app to a native app was pretty thorough. Doing this conversion makes two distribution options available to the developer. And once your application is coverted, Stark's last chapter on "Submitting Your App to iTunes" really tied together some loose ends for me. Overall, I found this little book pretty helpful. It may not merit a second reading, but I have to offer it this praise: it has given me a foundation to start learning more detail, including writing in Objective-C.

As an IPhone app developer you've probably found that Objective-C is difficult to learn, rather counter-intuitive in syntax, and not very useful outside of the Mac programming world. Also, trying to get an app into the App store is like dealing with airport security - byzantine rules unevenly enforced and guaranteed long waits. Updates also take long time periods, and if your updates are in response to bugs you can quickly get a bad rep as a developer. This book shows you how to use commonly and long-used web technologies to build your application as a web app, have it tested on the web where you can quickly make changes in response to bugs, and then when you are ready, the book shows you how to use PhoneGap to convert your web app to a native iPhone app.

This book assumes that you have basic experience reading and writing HTML, CSS, and JavaScript, SQL, and jQuery. The author has a very brief overview of these technologies in the book, but it isn't enough if you lack experience, and it is duplication of what you already know if you have experience. The book largely avoids the iPhone SDK but you will need access to a Mac for the material in Chapter 7 on PhoneGap. This is the chapter where the author shows you how to convert a web app into a native app that can be submitted to the App Store.

The book is short, but it is adequate and clearly written for the task at hand. I'd recommend it to anyone who is tired of dealing with Objective-C and is looking for an easier way to write and test IPhone apps.

The book starts with a general overview of HTML and CSS and then explains how to use CSS, HTML and JQuery to target some of WebKit's proprietary calls to make Web Apps mimic native iPhone app look and feel. It also covers using HTML5 local storage. The last chapter explains how to use a new third-party (open source) PhoneGap SDK to convert your iPhone app to a native application.

So why two stars? Well, there are a few problems with the book. For starters, the pre-face and getting starting portion is not going to prepare anyone. If you don't have a foundation in HTML, JavaScript, CSS, etc.. You're going to struggle with the content and the information in the first chapter is not going to be enough to help you. With the chapters that follow we get more step by step examples, far too much hand holding and NO SOURCE TO DOWNLOAD (this is unforgivable). Advanced developers will gladly pay for a book just to get their hands on the source and will learn quickly by reading the source code as opposed to reading the authors step-by-step instructions on how to write the source code. For all except beginner books, it's common with tech books that the source code is really what the reader is after and the book becomes a reference (as needed) for understanding the source code. This basic concept of tech book authorship seems to be missing here. This book is formatted as a beginners book but covers more advanced topic, this is a significant flaw in the approach.

Aside from my dislike of the authors approach, there are two other areas where I think this book should have been filled out a bit more. We get no information on using graphics. I know there are hundreds of books out there that cover graphics and animation with CSS/JavaScript, this author had an opportunity to give a chapter or two on this subject in the context of iPhone web app development; this is a huge opportunity missed. If you're looking to create a game app using the HTML/JScript stack to target iPhone this book will do you no good. With iOS4, Safari now supports a lot more of HTML5 which frankly changes a lot. It's not that the techniques covered in this book are all out of date, but there is a lot more that can be done now to make Web Apps mimic native iPhone apps. I realize tech books go out of date quickly, it's important you know this one has already been rendered obsolete in this way.

Finally, the last chapter covers PhoneGap. PhoneGap is an open source SDK that allows web developers to deploy their apps as native apps on many target mobile devices. In context of iPhone native app development, PhoneGap can only be used by developers with MacOS, XCode and the official iPhone dev SDK. It's useless to Windows and Linux developers for the purpose of creating native iPhone apps. Also, PhoneGap supports some really neat features like accelerometer events which this author does not even mention. This is another example of where if this book were just a bit thicker, it could have covered a lot more.

This is the first book I've purchased from O'Reily where I felt the book was a gimmick, written as an attempt to capitalize quickly on a hot subject matter. I can't think of any target audience that would really benefit here. I am very, very disappointed in O'Reily for allowing this one to get out the door. It's not that the author is incompetent, it's that he's not thorough on the subject and his book is not formatted for the advanced technical professional for which is was written.

The author does mention[...]. For the advanced developer (most people reading this book).
Download this library (currently in beta) and it will provide detailed examples of creating web apps the mimic iPhone look and feel. This free toolkit will quickly give you everything you need to know to do what this books aims to teach you and you will pay nothing for it.

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