ios4

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How do I detect Grand Central Dispatch feature support on an iPhone?

I started out thinking I wanted to test or detect if iOS was version 4.x so I would know I could use Grand Central Dispatch to run a concurrent thread. If it was less than iOS 4 I would run the code b[详细]

2023-04-11 06:33 分类：问答
NSInvalidArgumentException when I attempt to call an external method from inside another method

I get the console messages: 2011-10-05 17:21:15.112 Fairstead[4986:207] -[CCSprite translate::::]: unrecognized selector sent to instance 0x546fdb0[详细]

2023-04-11 05:59 分类：问答
Database updation issue

I am trying to update my database with some values using following code. But the values are not updated and it stored null to the same.[详细]

2023-04-11 05:57 分类：问答
Parsing JSON string in Objective C

I have a very very long NSString which has occurrences of {query:\"City Name\" The City Name can be of any length. I want to be able to extract all the City Name into an array.[详细]

2023-04-11 04:53 分类：问答
Providing address suggestions dynamically in iPhone app

In my iPhone application, I am looking for a way to provide auto-complete address suggestions us开发者_C百科ing some free third party API\'s. The selections from these suggestions should be plotted on[详细]

2023-04-11 03:40 分类：问答
Xcode 4 Scheme Hell?

I have a serious ongoing issue with Xcode 4. I have been using Xcode 3 for years, and had everything set up perfectly. All my Build Configurations worked A-OK.[详细]

2023-04-11 03:34 分类：问答
three20 application crash in class TTBaseViewController.m : UIViewControllerGarbageCollection.h' file not found

I am using Xcode4 and try to implement the three30 framework in my app Source : http://galic-design.com/objective-c/make-my-own-iphone-app-looking-like-facebook-app#comment-27[详细]

2023-04-11 03:31 分类：问答
Return object to original position on TouchesEnded?

I am trying to do a very basic thing but I am new to this. Basically I have a screen with a 3 objects that can move around,[详细]

2023-04-11 01:26 分类：问答
How to programmatically set the background on a UICustomButton?

I know this question has been asked and answered in other forums, but I can\'t seem to duplicate what they did and get it to work. I am trying to set the background to a button using a picture that I[详细]

2023-04-11 00:36 分类：问答
How to authenticate to Active Directory using iOS app

I am trying to create and iOS app that takes a users credentials and verifies it with the AD server. Is there some built in library in xCode to do that, or is it third party?[详细]

2023-04-10 21:40 分类：问答