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212
364 votes
52 answers

Expand a random range from 1–5 to 1–7

algorithm random puzzle Mar 1 at 16:43 Roger Pate
stackoverflow.com

76
215 votes
5 answers

@synthesize vs @dynamic, what are the differences?

iphone objective-c cocoa cocoa-touch May 13 at 9:14 Yingpei Zeng
stackoverflow.com

58
151 votes
3 answers

Difference between objectForKey and valueForKey?

iphone objective-c cocoa nsdictionary key-value-observing Apr 28 at 13:00 fishinear
stackoverflow.com

110
136 votes
22 answers

Placeholder in UITextView

iphone objective-c cocoa-touch uitextfield uitextview 9 hours ago Adil Malik
stackoverflow.com

50
70 votes
7 answers

Cropping a UIImage

iphone objective-c cocoa-touch image-manipulation 2 days ago Ned Batchelder
stackoverflow.com

86
51 votes
2 answers

How do I export UIImage array as a movie?

iphone export uiimage avfoundation Apr 23 at 20:45 SAKrisT
stackoverflow.com

18
26 votes
4 answers

Arguments in @selector

iphone cocoa cocoa-touch Jan 24 at 10:14 Oleh Kudinov
stackoverflow.com

21
25 votes
7 answers

UIScrollview with UIButtons - how to recreate springboard?

objective-c uiscrollview uibutton Feb 26 at 4:38 Patrick
stackoverflow.com

6
24 votes
5 answers

Trim trailing spaces in XCode

xcode editor trim developer-tools Jan 7 at 16:16 rjmunro
stackoverflow.com

6
19 votes
3 answers

What is the right choice between NSDecimal, NSDecimalNumber, CFNumber?

iphone objective-c cocoa key-value-coding Nov 10 '09 at 18:48 Brad Larson
stackoverflow.com

18
18 votes
4 answers

How to check for local Wi-Fi (not just cellular connection) using iPhone SDK?

iphone objective-c cocoa-touch Oct 11 '12 at 12:20 kamesh
stackoverflow.com

23
17 votes
5 answers

Pitch recognition of musical notes on a smart phone

audio signal-processing fft pitch-tracking Dec 9 '12 at 18:49 endolith
stackoverflow.com

16
15 votes
8 answers

How to program a real-time accurate audio sequencer on the iphone?

iphone audio core-audio timing openal Feb 5 at 16:50 user1694772
stackoverflow.com

6
12 votes
3 answers

How to get the color of a pixel in an UIView?

iphone uiview colors pixel Feb 6 '12 at 7:29 ivanzoid
stackoverflow.com

3
11 votes
7 answers

iPhone SDK - How to play a video with transparency?

iphone Dec 20 '12 at 0:19 Matthew Clark
stackoverflow.com

17
11 votes
3 answers

Customize the Airplay button's appearance

iphone ios overlay calayer airplay Oct 28 '11 at 12:49 coneybeare
stackoverflow.com

9
10 votes
4 answers

NSString no 'assign', 'retain', or 'copy' attribute is specified

c objective-c memory-management nsstring Nov 2 '09 at 18:18 bmalicoat
stackoverflow.com

11
10 votes
4 answers

Audio on the iPhone

iphone audio Apr 23 at 14:35 Glenn Barnett
stackoverflow.com

8
9 votes
3 answers

What explains best the CAPropertyAnimation animationWithKeyPath: parameter?

iphone core-animation cakeyframeanimation Jan 24 at 9:57 Vaibhav Saran
stackoverflow.com

10
9 votes
2 answers

Getting text from image on ios (image processing)

objective-c image ios image-processing Nov 28 '11 at 21:06 Helen
stackoverflow.com

2
7 votes
3 answers

How to get an iPhone app to appear in Spotlight with a query that doesn't exactly match

iphone spotlight Jan 18 '10 at 17:17 vivianaranha
stackoverflow.com

5
7 votes
2 answers

Easy way to detect if I am using framework not available to older iOS

ios xcode ios-frameworks ios-sdk Apr 24 '12 at 10:45 mahboudz
stackoverflow.com

14
6 votes
6 answers

Do you know a good and efficient FFT?

iphone fft Mar 25 at 21:27 dwbrito
stackoverflow.com

7
6 votes
1 answer

Flatten UIViews Subviews to UIImage iPhone 3.0

iphone cocoa-touch cgcontext Mar 11 '11 at 11:03 Jitt Mohan
stackoverflow.com

7
5 votes
5 answers

How can I fetch information about the app/song/video etc. from iTunes Store?

iphone web-services osx app-store itunes Oct 8 '12 at 11:34 Janak Nirmal
stackoverflow.com

2
5 votes
6 answers

Why does PHP echo'd text lose it's formatting?

php formatting Oct 28 '11 at 13:38 NikiC
stackoverflow.com

2
4 votes
1 answer

UIButtons at the bottom of a UIScrollView are not receiving touches

iphone uikit Sep 10 '09 at 13:43 Joost
stackoverflow.com

3
3 votes
2 answers

How can I blend between my UIView and my EAGLView?

iphone opengl uikit uiview eaglview Sep 12 '09 at 21:34 PeyloW
stackoverflow.com

2
3 votes
2 answers

Combining Audio Files as One Properly on iPhone with NSData

iphone file audio nsdata avaudiorecorder Feb 26 '10 at 15:00 Community
stackoverflow.com

2
3 votes
3 answers

Get just the rotation from a CGAffineTransform

iphone objective-c transform Oct 1 '09 at 16:30 Felixyz
stackoverflow.com

1 2