15 Apr 2010, 00:15
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Roy Martin German (1 post)

As an iPhone app developer that already has an iPhone app for sale (Fudge), I would be keenly interested if you had a chapter on how to develop applications that are optimized for BOTH platforms.

Eventually, I’ll be interested in a complete redesign for the iPad but for now, I’d just like to know what I can do to make my iPhone app work better on an iPhone.

Is it even possible to create a hybrid app that is smart enough to work differently on each platform?

Thanks in advance!

16 Apr 2010, 11:58
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Joshua Austin (1 post)

One of the first things you do in the book is create iphone application and then modify it to a universal application for iPhone/iPad. It covers the basics of building a “hybrid app”, but you can get a whole lot more sophisticated by Using Runtime Checks to Create Conditional Code Paths. By creating conditional code paths depending on which platform the app is being run on, the customization of the user experience is endless. If your application is going to be functionally different, but conceptually the same, I would recommend building the iPad app separate from your iPhone app. The iPad Programming Guide from Apple is a great thing to read….little tip if you have an iPad check out the Developer Documentation on the iPad using Mobile Safari…The formatting is setup perfect for a reference.

PS. it would be great if the authors would add at least some pointers for making universal apps, and how to ensure the best performance for the user on both platforms. Maybe in the fit and polish chapter?

16 Apr 2010, 14:44
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Daniel H Steinberg (97 posts)

I believe we do cover this - we don’t talk about optimization but we do talk about conditional code paths and do point to this document.

07 May 2010, 19:02
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Christopher Campbell Jensen (1 post)

I would love to see examples of how common functionality can be factored out into a separate project that the iPad and iPhone projects can import.

20 Jun 2013, 06:40
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jonas denver (2 posts)

Always put things into possibility, and personally, I think this is not only possible but probable. A lot of things nowadays including modern technology are with eco friendly touch and hybrid ideas, so it is more likely in the near future things could be more virtually hybrid. But, before that I guess, the device manufacturer should implement more secure and environmental friendly devices that should be promoted in iPhone, iPad, Androids and even ipad cases and accessories, which these are eventually the basic foundation of modern technology. Design consultant Abigail Post of http://www.kekacase.com/designer-cases/abigail-post.html promoted similar ideas in a during the technology and application convention in Texas.

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