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2014/10/15 ¤U¤È 10:03:29
iphone Programming Glossary: acceptableAny idea why this image masking code does not work? http://stackoverflow.com/questions/1133248/any-idea-why-this-image-masking-code-does-not-work way to generate an image mask from an arbitrary image is to do this Create a bitmap graphics context that is in an acceptable format for image masks you can't use UIGraphicsBeginImageContext for this Draw your image into this bitmap graphics context..
Use autorelease before adding objects to a collection? http://stackoverflow.com/questions/1147785/use-autorelease-before-adding-objects-to-a-collection
Embedded Video in a UIView with iPhone http://stackoverflow.com/questions/1347395/embedded-video-in-a-uiview-with-iphone
What is the right choice between NSDecimal, NSDecimalNumber, CFNumber? http://stackoverflow.com/questions/1704504/what-is-the-right-choice-between-nsdecimal-nsdecimalnumber-cfnumber use NSDecimalNumber but there is two things that I would like to know Are the memory overhead and performance loss acceptable for a somewhat more complicated class only financial computations of this kind showed in an UITableView I do not have much.. To answer your questions only testing of your code can reveal whether the memory overhead and performance loss are acceptable to you. I haven't really worked much with NSDecimalNumber but I'd wager that Apple's implementation is quite efficient and..
Is MonoTouch a viable platform for iPhone development? http://stackoverflow.com/questions/1847274/is-monotouch-a-viable-platform-for-iphone-development for the App Store the size decreases dramatically you can easily write a MonoTouch app that falls well within the acceptable size limit for apps delivered OTA I bring this up because it's a question MT n0obs rightly tend to ask . So Apple doesn't..
Resolving html entities with NSXMLParser on iPhone http://stackoverflow.com/questions/2370842/resolving-html-entities-with-nsxmlparser-on-iphone I will file a bug report. In the meantime the earlier answer of performing a string replacement is perfectly acceptable if your documents are small. Check out the SAX tutorial mentioned above along with the XMLPerformance sample app from Apple..
Alternative solutions for in-house iPhone enterprise app distribution http://stackoverflow.com/questions/3309835/alternative-solutions-for-in-house-iphone-enterprise-app-distribution That information is sent to the web based configuration management system and confirmed. If the app receives an acceptable confirmation from the configuration management system it unlocks itself for use by that user. The app can either re authenticate..
Can the iPhone SDK obtain the Wi-Fi SSID currently connected to? http://stackoverflow.com/questions/339089/can-the-iphone-sdk-obtain-the-wi-fi-ssid-currently-connected-to Wi Fi for AT T for one but I can't find how it's done in the iPhone SDK docs. A private or unpublish method would be acceptable just as a proof of concept although I know that likely wouldn't make it to the AppStore . iphone ios wifi share improve..
http://stackoverflow.com/questions/3760924/set-line-height-in-uitextview is UIWebView and that it's nice and can do styling etc. But it's not editable . I need a editable text component with acceptable line height. That thing from the Omni Frameworks doesn't help either as it's too slow and doesn't feel right... iphone..
Subclassing NSOperation to be concurrent and cancellable http://stackoverflow.com/questions/3859631/subclassing-nsoperation-to-be-concurrent-and-cancellable isCancelled method. There is no reason to do this. NSOperation already implements isCancelled in a perfectly acceptable manner. You are checking your own _isCancelled instance variable to determine whether the operation has been cancelled...
MPMoviePlayerController re-orientation portrait to landscape and back to portrait (iOS 4.1) http://stackoverflow.com/questions/3960665/mpmovieplayercontroller-re-orientation-portrait-to-landscape-and-back-to-portrai closes and then what I see is my original view autorotated but I don't want this auto rotation. A partial but not acceptable solution is to listen for MPMoviePlayerDidExitFullscreenNotification and if the interface is rotated to landscape force.. and private function UIDevice currentDevice setOrientation UIDeviceOrientationPortrait This works but is not acceptable as usage of this method is forbidden. I tried to force orientation using UIApplication sharedApplication setStatusBarOrientation..
Getting displacement from accelerometer data with Core Motion http://stackoverflow.com/questions/4449565/getting-displacement-from-accelerometer-data-with-core-motion few weeks of experimenting with different approaches and ended up with poor results. I am sure that there won't be an acceptable solution for either larger distances or slow motions lasting for more than 1 or 2 seconds. If you can live with some restrictions..
iPhone: AVAudioPlayer unsupported file type http://stackoverflow.com/questions/4901709/iphone-avaudioplayer-unsupported-file-type My app downloads an mp3 from our server and plays it back to the user. The file is 64 kbps which is well within the acceptable range for iPhone if I understand correctly . I have looked up how to do this on dozens of sites and they all suggest that..
Can you use cancel/isCancelled with GCD/dispatch_async? http://stackoverflow.com/questions/5449469/can-you-use-cancel-iscancelled-with-gcd-dispatch-async if it's important to be able to cancel your background task then checking a flag like you've demonstrated is an acceptable solution. However you may want to evaluate how quickly the cancellation needs to respond if some of those methods calls..
Create singleton using GCD's dispatch_once in Objective C http://stackoverflow.com/questions/5720029/create-singleton-using-gcds-dispatch-once-in-objective-c return sharedInstance iphone ios objective c xcode singleton share improve this question This is a perfectly acceptable and thread safe way to create an instance of your class. It may not technically be a singleton in that there can only ever..
Set to nil in viewDidUnload, but release in dealloc http://stackoverflow.com/questions/5737312/set-to-nil-in-viewdidunload-but-release-in-dealloc self.label nil is correct. Similarly correct would be self setLabel nil . And while not quite as good it would also be acceptable to write label release label nil . This last form isn't as good because it bypasses the setter method which may be doing..
UIModalTransitionStylePartialCurl with UITabBarController http://stackoverflow.com/questions/6873903/uimodaltransitionstylepartialcurl-with-uitabbarcontroller problem. The question has been asked many times but as you note never sufficiently answered. Many solutions give an acceptable solution if it is unimportant whether e.g. a lower toolbar curls up as well. Others have provided a solution using UIView..
Most efficient way to draw part of an image in iOS http://stackoverflow.com/questions/8035673/most-efficient-way-to-draw-part-of-an-image-in-ios limitations it will perform as well as plain OpenGL implementation. If you use just a few images to display you'll get acceptable performance with UIView implementation because it can get full acceleration of underlying OpenGL which means GPU acceleration..
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