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2014/10/15 ¤U¤È 10:13:19
iphone Programming Glossary: representsHTML character decoding in Objective-C / Cocoa Touch http://stackoverflow.com/questions/1105169/html-character-decoding-in-objective-c-cocoa-touch references . Basically it's a string representation of the byte that should be substituted. In the case of #038 it represents the character with the value of 38 in the ISO 8859 1 character encoding scheme which is . The reason the ampersand has to..
How to create a UIImage from the current graphics context? http://stackoverflow.com/questions/1112947/how-to-create-a-uiimage-from-the-current-graphics-context may be invoked several times as the user draws. When the user is done I'd like to create a UIImage object that represents the graphics context. Any suggestions on how to do this iphone uiimage core graphics quartz graphics share improve this..
Reading PDF files as string through iPhone application http://stackoverflow.com/questions/2362393/reading-pdf-files-as-string-through-iphone-application CGPDFScannerCreate myContentStream myTable NULL 4 CGPDFScannerScan myScanner 5 CGPDFDictionaryRef d CGPDFStringRef str represents a sequence of bytes d CGPDFPageGetDictionary page if CGPDFDictionaryGetString d Thumb str CFStringRef s s CGPDFStringCopyTextString..
Changing the text on a UISwitch http://stackoverflow.com/questions/2711180/changing-the-text-on-a-uiswitch you can set @property nonatomic retain UIImage offImage @property nonatomic retain UIImage onImage Docs say This image represents the interior contents of the switch. The image you specify is composited with the switch ™s rounded bezel and thumb to create..
How to dump data stored in objective-c object (NSArray or NSDictionary) http://stackoverflow.com/questions/289241/how-to-dump-data-stored-in-objective-c-object-nsarray-or-nsdictionary this question In Cocoa there is no dump like PHP's print_r or python's repr since there is no textual format that represents an object as in those languages. If you use NSLog @ @ myObj or NSString stringRep NSString stringWithFormat @ @ myObj or..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework .idealFreq 512 44Hz The highest frequency we can detect known as the Nyquist frequency is where every pair of points represents a wave ie 512 complete waves within the window ie 512 44Hz or n 2 bin 1 .idealFreq Actually there is an extra Bin Bin 0..
Key Value Observing with an NSArray http://stackoverflow.com/questions/3478451/key-value-observing-with-an-nsarray concrete examples of how to do this. Can anyone explain with some sample code For instance if I have a GameModel which represents its player names with an NSArray playerNameArray of NSStrings . I want to observe those strings the view controller observes..
IPhone/IPad: How to get screen width programmatically? http://stackoverflow.com/questions/3655104/iphone-ipad-how-to-get-screen-width-programmatically the View Controller then you will need to check the interface orientation to determine which part of the view bounds represents the 'width' and the 'height'. Note that the frame property will give you the rect of the view in the UIWindow's coordinate..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone alloc initWithStyle UITableViewCellStyleDefault reuseIdentifier CellIdentifier autorelease here 'asset' represents the ALAsset object asset assets objectAtIndex indexPath.row i am accessing the thumbnail here cell.imageView setImage UIImage..
Just two rounded corners? [duplicate] http://stackoverflow.com/questions/4845211/just-two-rounded-corners In this way you can OR things together to form a bitmask that identifies corners since each member of the enum represents a different power of two in the bitmask. Much Later Edit I've discovered an easier way to do this using UIBezierPath 's..
Xcode won't recognize my new provisioning profile http://stackoverflow.com/questions/5291463/xcode-wont-recognize-my-new-provisioning-profile section which you can find using your editor's search function . It's a list of entries each of which represents a code signing configuration for a given profile in a given build configuration. Here's information about the profile I..
Facebook access token server-side validation for iPhone app http://stackoverflow.com/questions/5406859/facebook-access-token-server-side-validation-for-iphone-app here which will return the Facebook User Id of the owner of the access token as a JSON string. The keyword 'me' represents the currently logged in user or the owner of the access token. For this request access token is a mandatory parameter. If..
Difference between two NSDate objects — Result also a NSDate http://stackoverflow.com/questions/5562594/difference-between-two-nsdate-objects-result-also-a-nsdate use NSDateFormatter to localize it. iphone objective c cocoa touch ios nsdate share improve this question NSDate represents an instance in time so it doesn't make sense to represent an interval of time as an NSDate . What you want is NSDateComponents..
Download music file from server and save in my app http://stackoverflow.com/questions/5620849/download-music-file-from-server-and-save-in-my-app
What are the key concepts for an iPhone Developer to learn? [closed] http://stackoverflow.com/questions/5677655/what-are-the-key-concepts-for-an-iphone-developer-to-learn to set properties or otherwise interact with objects in your NIB files via Objective C code. The @ symbol The @ symbol represents Objective C constants since Objective C is a superset or Framework on top of C. In C a string constant would be My string..
Get NSDate from NSDate adjusted with timezone http://stackoverflow.com/questions/7485493/get-nsdate-from-nsdate-adjusted-with-timezone NSDate from NSDate adjusted with timezone I have a NSDate object. Let's say it represents 1 10 2011 NSDate date df dateFromString @ 2011 10 01 00 00 00 That date translates into 2011 09 30 22 00 00 because of my.. 10 01 00 00 00 in my local timezone iphone ios timezone nsdate locale share improve this question NSDate only represents an absolute point in time . It has no concept of timezone or calendar. When you create a NSDate instance it is just a number..
iPhone Interface Builder and Delegates http://stackoverflow.com/questions/761814/iphone-interface-builder-and-delegates builder share improve this question File's Owner is not a real object in the xib file. It is a proxy object. It represents the object that will become the xib's owner when it is loaded. First Responder and App Delegate are proxies also. The first..
Detecting Color of iPhone/iPad/iPod touch? http://stackoverflow.com/questions/8463212/detecting-color-of-iphone-ipad-ipod-touch TRUE or if is going to help you. The serial number is the key If aabccdddeef is the serial number of the iPhone 4 ee represents the Color A4 black . I hope some of you here check this information with yours to see if this is true. share improve this..
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