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How to play audio files using the AVFoundation framework
The topic of this tutorial is about the AVFoundation framework, which is a powerful set of tools that let programmers to work with both audio and video related tasks. In here, I’ll make a small introduction on how to play audio files using the framework, which is the most common task for the majority of…
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How to import contacts from the Address Book – Part 2
Welcome to the second part of this tutorial! At the first part we talked about a couple of things on how to import contacts from the device’s Address Book and we developed a demo app to see everything in action. What we really did, was to let us tap on a contact’s name, return back…
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How to import contacts from the Address Book – Part 1
It happens many times some of the iPhone apps we implement to need access to kind of information imported in ways other than the user’s input, or getting data from a file or downloading from the web. A kind of that information is the contacts info existing in the Address Book of the device.
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Page Control: Display view controllers as data pages
The Page Control, is a useful tool that allows to display data on an iPhone app in the form of pages. To get the idea, just thing of the main screen of the iPhone, where you navigate among pages to the left and right to display all the apps existing on the device.
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UIPickerView – Add it programmatically
It is often needed to give the user the ability to choose among various options when creating an application. In that case, the UIPickerView it’s a nice (and many times the best) choice to do that. The UIPickerView can be easily created using the Interface Builder, but unfortunately Apple doesn’t allow us to change its…