iOS
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iOS SDK 5.1 on Snow Leopard | Chad Scira
2 weeks ago So apparently Apple wants us to upgrade to Lion in order to develop for the latest version of iOS. I feel like Lion still has quite a few issues which is preventing me from wanting to upgrade. I quickly upgraded my phone to iOS 5.1 not knowing that i wouldnt be able to use XCode with it on Snow Leopard. So the hacking started...
iphone - What's the best way to validate currency input in UITextField? - Stack Overflow
I found that the shouldChangeCharactersInRange screws up the pop-up keyboard, backspace and "Done" button as well. I found if I handled 0 length strings and allowed control characters though, it worked fine. I don't like using NSNumberFormatter because it insists that the number is well-formed at all stages while the user is editing and that can be infuriating if you, say, want to have two decimal points in the number for a moment until you delete the one that's in the wrong spot.Note from Ray: This is the second iOS 5 tutorial in the iOS 5 Feast ! This tutorial is a free preview chapter from our new book iOS 5 By Tutorials . Matthijs Hollemans wrote this chapter – the same guy who wrote the iOS Apprentice Series . Enjoy!
Beginning Storyboards in iOS 5 Part 1 | Ray Wenderlich
iphone - Changing Tint / Background color of UITabBar - Stack Overflow
I have an addendum to the final answer. While the essential scheme is correct, the trick of using a partially transparent color can be improved upon. I assume that it's only for letting the default gradient to show through.
iPad Modal View Controllers - Blog - Use Your Loaf
There were some minor tweaks to modal view controllers with iPhone OS 3.2 that are worth taking a look at if you need a modal view for an iPad or universal app. Modal View Controller Recap Modal view controllers are well documented in the View Controller Programming Guide for iPhone OS but here is a quick recap of how to present and dismiss a modal view. To keep things simple I will cover the steps for presenting the modal view when a button is pressed on a master view controller.Introduction In the first article in this series, I provided a quick introduction to Objective-C, and talked a bit about memory management, working with the controls, and persisting information to files. In this article, I want to introduce some of the graphics functionality. I will be using the iPad emulator as the target device for this article because of the much better display surface that it provides. But the APIs shown here will work on the iPad, iPhone, and iPod Touch.
Introduction to iOS Graphics APIs: Part 1 - CodeProject
Show TODO's And FIXME's As Warnings In Xcode 4 - Deallocated Objects by Jake Marsh
Here's a neat little snippet for Xcode 4 that will cause all of your //TODO: and //FIXME: comments in your code to appear as compiler warnings when you build. Here's how to use it: Now just build and you'll see all your //TODO: and //FIXME: comments have become warnings. I love this technique, it might not be right for everyone, but hope it helps someone.
Open MyApName-Info.plist. Right click in the blank area and add a row with the key name ’Icon Already Includes Gloss Effects’ (was ‘UIPrerenderedIcon’) with a setting of ‘YES’. The default image is the image that loads while the application starts up. Ideally this should be an image that mimics the real application start-up page so that the user experience is just of the app starting, although it can be treated as an application start-up splash screen if preferred. This file is submitted with the applicaiton, but is not part of the application (it is not stored in the application).
Application Icons « iOS Developers
A strict JSON parser and generator for Objective-C. It adds categories to existing Objective-C objects for a super-simple interface. More flexible APIs are also provided for added control.
SBJson
Hello my friends, Due to some bugs and questions with the old tutorial, I’m creating this new one, much more simpler and less bugs than the another one. I’ll not post the old link here because everything you need to know you can find right here. Nowadays, exist few alternatives to create a Framework to iOS, changing the default Xcode Script, which could not be a good choice if you want to publish the APPs constructed with your custom Framework.
Universal Framework iPhone iOS (2.0)
Up until recently I haven’t had the need to load images into a table view from the web. I will be showing two very useful items to add to your arsenal. That is if you don’t already know this. One very useful concept in Objective-C is Categories. In short Categories can allow you to extend existing classes. For instance I created a Category that Loads an Image from the web, I extended the NSString class.
Cheat Code
The Pragmatic Studio | Using Blocks in iOS 4: Designing with Blocks
In the first part of this series, we learned how to declare and call basic Objective-C blocks. The motivation was to understand how to effectively use the new APIs in iOS 4 that take blocks as parameters. In this installment we're going to shift our focus toward writing our own methods that take blocks. By understanding how to use blocks in your own code, you'll have another design technique in your repertoire. And you might just find that blocks make your code easier to read and maintain.Games