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2014/10/15 ¤U¤È 10:03:57
iphone Programming Glossary: aroundHow do I wrap text in a UITableViewCell without a custom cell http://stackoverflow.com/questions/129502/how-do-i-wrap-text-in-a-uitableviewcell-without-a-custom-cell
How can I get a writable path on the iPhone? http://stackoverflow.com/questions/1567134/how-can-i-get-a-writable-path-on-the-iphone folder where you store configuration files and writable databases that you also want to keep around but you don't want the user to be able to mess with through iTunes NSArray paths NSSearchPathForDirectoriesInDomains..
Is there a documented way to set the iPhone orientation? http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation latest release. It is not clear if Apple's static analysis will understand that you are working around the older SDK limitations. I personally have been told by Apple to remove the method call on my next..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults to store custom objects in NSUserDefaults Alright so I've been doing some poking around and I realize my problem but I don't know how to fix it. I have made a custom class to hold some data... something wrong but I'm not sure what. Help would be appreciated again thank you I haven't gotten around to decrypting yet as I haven't gotten encrypting working yet. iphone objective c encoding nsuserdefaults..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received be released at some time in the future by other code so it is vital that if you need to keep it around beyond the immediate function that you retain it. If you don't the memory may remain allocated while..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework used to store Bin n 2 And the magnitude of each complex number is the amount of energy vibrating around that frequency. So as you can see it wouldn't be a very great pitch detector as it doesn't have nearly..
How do you use NSAttributedString? http://stackoverflow.com/questions/3482346/how-do-you-use-nsattributedstring So I've heard a little about the NSAttributedString which was introduced with the iPad SDK 3.2 or around 3.2 and is available on the iPhone as of iPhone SDK 4.0 beta . I would like to have a string that has..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display you implicitly scale it up or just your brain is picking up on it being less sharp than everything around it. So I guess #import QuartzCore QuartzCore.h UIImage imageWithView UIView view UIGraphicsBeginImageContextWithOptions..
iOS SDK - Programmatically generate a PDF file http://stackoverflow.com/questions/4362734/ios-sdk-programmatically-generate-a-pdf-file objects from views throughout my app. I am interested to know if there are any good PDF tutorials around for the iOS SDK maybe a drop in library. I've seen this tutorial PDF Creation Tutorial but it was mostly.. to draw to it Starts our first page CGContextBeginPage pdfContext pageRect Draws a black rectangle around the page inset by 50 on all sides CGContextStrokeRect pdfContext CGRectMake 50 50 pageRect.size.width.. forum iphone sdk development 15505 pdf font problem cant get cids glyphs.html#post97854 As a workaround I've used libHaru successfully on iPhone as a replacement for CoreGraphics PDF generation. It was a..
CSS “position: fixed;” into iPad/iPhone? http://stackoverflow.com/questions/4889601/css-position-fixed-into-ipad-iphone can confirm that it does work with position fixed. There are issues with zooming in and panning around a fixed element though. I found this compatibility table far more up to date and useful than the quirksmode..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root
iPhone UIView Animation Best Practice http://stackoverflow.com/questions/630265/iphone-uiview-animation-best-practice applicationLoadViewIn forKey kCATransitionReveal but there are also code snippets floating around the net that look like this UIView beginAnimations nil context nil UIView setAnimationDuration 0.75..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown this for a reason. It's very rare that this warning should simply be ignored and it's easy to work around. Here's how SEL selector NSSelectorFromString @ someMethod IMP imp _controller methodForSelector selector.. parameter you'll probably eventually send a message to a zombie and crash. There are ways to work around this with bridged casting but really it'd be better to simply use the IMP and function pointer methodology..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone for now but more types may be needed later in an iPhone app I'm working on. I've done some looking around and it doesn't look like there are any really good mature charting libraries for iPhone yet. I've also..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud the image data once you've won nothing here except to have a cached version of the image hanging around and likely for longer than you need it. However if you do have a large image that you need to redraw..
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview Both these methods take a performance hit however since they do the request twice. You can get around this by grabbing the content from a currently loaded UIWebView using its stringByEvaluatingJavascriptFromString..
How do I wrap text in a UITableViewCell without a custom cell http://stackoverflow.com/questions/129502/how-do-i-wrap-text-in-a-uitableviewcell-without-a-custom-cell
How can I get a writable path on the iPhone? http://stackoverflow.com/questions/1567134/how-can-i-get-a-writable-path-on-the-iphone and very similar to the Documents directory there is the Library folder where you store configuration files and writable databases that you also want to keep around but you don't want the user to be able to mess with through iTunes NSArray paths NSSearchPathForDirectoriesInDomains NSLibraryDirectory NSUserDomainMask YES NSString..
Is there a documented way to set the iPhone orientation? http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation and only apply the setOrientation when it is prior to the latest release. It is not clear if Apple's static analysis will understand that you are working around the older SDK limitations. I personally have been told by Apple to remove the method call on my next update so I am not yet sure if having a hack for older devices..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults to store custom objects in NSUserDefaults Alright so I've been doing some poking around and I realize my problem but I don't know how to fix it. I have made a custom class to hold some data. I make objects for this class and I need to them to last.. part of the app that's where it crashes so I'm doing something wrong but I'm not sure what. Help would be appreciated again thank you I haven't gotten around to decrypting yet as I haven't gotten encrypting working yet. iphone objective c encoding nsuserdefaults share improve this question On your Player class implement..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received then you'll have an autorelease reference which means it could be released at some time in the future by other code so it is vital that if you need to keep it around beyond the immediate function that you retain it. If you don't the memory may remain allocated while you are using it or be released but coincidentally still valid..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework 0 so A 0 .realp is used to store Bin 0 and A 0 .imagp is used to store Bin n 2 And the magnitude of each complex number is the amount of energy vibrating around that frequency. So as you can see it wouldn't be a very great pitch detector as it doesn't have nearly fine enough granularity. There is a cunning trick Extracting..
How do you use NSAttributedString? http://stackoverflow.com/questions/3482346/how-do-you-use-nsattributedstring colours in an NSString or NSMutableStrings are not possible. So I've heard a little about the NSAttributedString which was introduced with the iPad SDK 3.2 or around 3.2 and is available on the iPhone as of iPhone SDK 4.0 beta . I would like to have a string that has three colours. The reason I don't use 3 separate NSStrings..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display I'll bet either the iPhone 4 is applying a filter when you implicitly scale it up or just your brain is picking up on it being less sharp than everything around it. So I guess #import QuartzCore QuartzCore.h UIImage imageWithView UIView view UIGraphicsBeginImageContextWithOptions view.bounds.size view.opaque 0.0 view.layer..
iOS SDK - Programmatically generate a PDF file http://stackoverflow.com/questions/4362734/ios-sdk-programmatically-generate-a-pdf-file I would like to programmatically create a PDF using various objects from views throughout my app. I am interested to know if there are any good PDF tutorials around for the iOS SDK maybe a drop in library. I've seen this tutorial PDF Creation Tutorial but it was mostly written in C. Looking for more Objective C style. This.. CFRelease url Done creating our PDF Context now it's time to draw to it Starts our first page CGContextBeginPage pdfContext pageRect Draws a black rectangle around the page inset by 50 on all sides CGContextStrokeRect pdfContext CGRectMake 50 50 pageRect.size.width 100 pageRect.size.height 100 This code block will create an.. issue. Here's some additional info http www.iphonedevsdk.com forum iphone sdk development 15505 pdf font problem cant get cids glyphs.html#post97854 As a workaround I've used libHaru successfully on iPhone as a replacement for CoreGraphics PDF generation. It was a little tricky getting libHaru to build with my project initially..
CSS “position: fixed;” into iPad/iPhone? http://stackoverflow.com/questions/4889601/css-position-fixed-into-ipad-iphone support now. I tested iOS 5 myself in an Apple store today and can confirm that it does work with position fixed. There are issues with zooming in and panning around a fixed element though. I found this compatibility table far more up to date and useful than the quirksmode one http caniuse.com #search fixed It has up to date..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root
iPhone UIView Animation Best Practice http://stackoverflow.com/questions/630265/iphone-uiview-animation-best-practice kCAMediaTimingFunctionEaseIn myview layer addAnimation applicationLoadViewIn forKey kCATransitionReveal but there are also code snippets floating around the net that look like this UIView beginAnimations nil context nil UIView setAnimationDuration 0.75 UIView setAnimationDelegate self UIView setAnimationTransition..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown this question Solution The compiler is warning about this for a reason. It's very rare that this warning should simply be ignored and it's easy to work around. Here's how SEL selector NSSelectorFromString @ someMethod IMP imp _controller methodForSelector selector void func id SEL void imp func _controller selector Or.. declaring consumed parameters and if the method consumes the parameter you'll probably eventually send a message to a zombie and crash. There are ways to work around this with bridged casting but really it'd be better to simply use the IMP and function pointer methodology above. Since consumed parameters are rarely an issue..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone I have a need to render and display charts bar charts for now but more types may be needed later in an iPhone app I'm working on. I've done some looking around and it doesn't look like there are any really good mature charting libraries for iPhone yet. I've also looked for something written for Cocoa on the Mac that can..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud the image data is needed. As you can imagine if you only need the image data once you've won nothing here except to have a cached version of the image hanging around and likely for longer than you need it. However if you do have a large image that you need to redraw often then there are alternatives although the one I would..
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview requestURL encoding NSASCIIStringEncoding error &error EDIT Both these methods take a performance hit however since they do the request twice. You can get around this by grabbing the content from a currently loaded UIWebView using its stringByEvaluatingJavascriptFromString method as such NSString html yourWebView stringByEvaluatingJavaScriptFromString..
How do I wrap text in a UITableViewCell without a custom cell http://stackoverflow.com/questions/129502/how-do-i-wrap-text-in-a-uitableviewcell-without-a-custom-cell
How can I get a writable path on the iPhone? http://stackoverflow.com/questions/1567134/how-can-i-get-a-writable-path-on-the-iphone there is the Library folder where you store configuration files and writable databases that you also want to keep around but you don't want the user to be able to mess with through iTunes NSArray paths NSSearchPathForDirectoriesInDomains NSLibraryDirectory..
Is there a documented way to set the iPhone orientation? http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation it is prior to the latest release. It is not clear if Apple's static analysis will understand that you are working around the older SDK limitations. I personally have been told by Apple to remove the method call on my next update so I am not..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults to store custom objects in NSUserDefaults Alright so I've been doing some poking around and I realize my problem but I don't know how to fix it. I have made a custom class to hold some data. I make objects for.. crashes so I'm doing something wrong but I'm not sure what. Help would be appreciated again thank you I haven't gotten around to decrypting yet as I haven't gotten encrypting working yet. iphone objective c encoding nsuserdefaults share improve..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received which means it could be released at some time in the future by other code so it is vital that if you need to keep it around beyond the immediate function that you retain it. If you don't the memory may remain allocated while you are using it or..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework 0 and A 0 .imagp is used to store Bin n 2 And the magnitude of each complex number is the amount of energy vibrating around that frequency. So as you can see it wouldn't be a very great pitch detector as it doesn't have nearly fine enough granularity...
How do you use NSAttributedString? http://stackoverflow.com/questions/3482346/how-do-you-use-nsattributedstring are not possible. So I've heard a little about the NSAttributedString which was introduced with the iPad SDK 3.2 or around 3.2 and is available on the iPhone as of iPhone SDK 4.0 beta . I would like to have a string that has three colours. The..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display a filter when you implicitly scale it up or just your brain is picking up on it being less sharp than everything around it. So I guess #import QuartzCore QuartzCore.h UIImage imageWithView UIView view UIGraphicsBeginImageContextWithOptions..
iOS SDK - Programmatically generate a PDF file http://stackoverflow.com/questions/4362734/ios-sdk-programmatically-generate-a-pdf-file a PDF using various objects from views throughout my app. I am interested to know if there are any good PDF tutorials around for the iOS SDK maybe a drop in library. I've seen this tutorial PDF Creation Tutorial but it was mostly written in C. Looking.. now it's time to draw to it Starts our first page CGContextBeginPage pdfContext pageRect Draws a black rectangle around the page inset by 50 on all sides CGContextStrokeRect pdfContext CGRectMake 50 50 pageRect.size.width 100 pageRect.size.height.. www.iphonedevsdk.com forum iphone sdk development 15505 pdf font problem cant get cids glyphs.html#post97854 As a workaround I've used libHaru successfully on iPhone as a replacement for CoreGraphics PDF generation. It was a little tricky getting..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root
iPhone UIView Animation Best Practice http://stackoverflow.com/questions/630265/iphone-uiview-animation-best-practice myview layer addAnimation applicationLoadViewIn forKey kCATransitionReveal but there are also code snippets floating around the net that look like this UIView beginAnimations nil context nil UIView setAnimationDuration 0.75 UIView setAnimationDelegate..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown is warning about this for a reason. It's very rare that this warning should simply be ignored and it's easy to work around. Here's how SEL selector NSSelectorFromString @ someMethod IMP imp _controller methodForSelector selector void func id SEL.. method consumes the parameter you'll probably eventually send a message to a zombie and crash. There are ways to work around this with bridged casting but really it'd be better to simply use the IMP and function pointer methodology above. Since..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone charts bar charts for now but more types may be needed later in an iPhone app I'm working on. I've done some looking around and it doesn't look like there are any really good mature charting libraries for iPhone yet. I've also looked for something..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud if you only need the image data once you've won nothing here except to have a cached version of the image hanging around and likely for longer than you need it. However if you do have a large image that you need to redraw often then there are..
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview error &error EDIT Both these methods take a performance hit however since they do the request twice. You can get around this by grabbing the content from a currently loaded UIWebView using its stringByEvaluatingJavascriptFromString method as..
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