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2014/10/15 ¤U¤È 10:16:01
iphone Programming Glossary: wouldn'tWhen should I release objects in -(void)viewDidUnload rather than in -dealloc? http://stackoverflow.com/questions/1158788/when-should-i-release-objects-in-voidviewdidunload-rather-than-in-dealloc viewDidUnload is good for Could I not just relase everything in dealloc If the view did unload wouldn't dealloc be called anyway iphone objective c ios cocoa touch memory management share improve this..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone calls are only for demonstrating the state of the data at various points in a real application it wouldn't make sense to print such values. int main int argc const char argv NSAutoreleasePool pool NSAutoreleasePool..
Autoplay audio files on an iPad with HTML5 http://stackoverflow.com/questions/3009888/autoplay-audio-files-on-an-ipad-with-html5 video and audio on IPad because of the high amout of traffic you can use on mobile networks. I wouldn't use autoplay for online content. For Offline HTML sites it's a great feature and thats what I've used..
Difference between [UIImage imageNamed…] and [UIImage imageWithData…]? http://stackoverflow.com/questions/316236/difference-between-uiimage-imagenamed-and-uiimage-imagewithdata object to make sure it's removed from memory when you're done. If you don't have any huge images I wouldn't worry about it. Unless you see a problem and kudos for checking Object Allocation instead of preemptively..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework 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..
UIImagePickerController camera preview is portrait in landscape app http://stackoverflow.com/questions/538041/uiimagepickercontroller-camera-preview-is-portrait-in-landscape-app is does anyone have a work around legal or illegal that would allow me to get this working now. I wouldn't release to the App Store with an illegal fix but I would have a much better app for user testing currently..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone rotations and fills and backgrounds for graphs. I'm not sure about stacked bar charts but it wouldn't be hard to add to the CPBarPlot class that implements bar charts. As for annotations there is a CPAnotation..
When should I release objects in -(void)viewDidUnload rather than in -dealloc? http://stackoverflow.com/questions/1158788/when-should-i-release-objects-in-voidviewdidunload-rather-than-in-dealloc in void viewDidUnload rather than in dealloc What is the void viewDidUnload is good for Could I not just relase everything in dealloc If the view did unload wouldn't dealloc be called anyway iphone objective c ios cocoa touch memory management share improve this question In addition to what has already been indicated I..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone category you can write something like this Note The printf calls are only for demonstrating the state of the data at various points in a real application it wouldn't make sense to print such values. int main int argc const char argv NSAutoreleasePool pool NSAutoreleasePool alloc init NSString key @ my password NSString secret..
Autoplay audio files on an iPad with HTML5 http://stackoverflow.com/questions/3009888/autoplay-audio-files-on-an-ipad-with-html5 on IOS 3.2.X. It's not true. Apple doesn't want to autoplay video and audio on IPad because of the high amout of traffic you can use on mobile networks. I wouldn't use autoplay for online content. For Offline HTML sites it's a great feature and thats what I've used it for. Here is a javascript fake click solution http www.roblaplaca.com..
Difference between [UIImage imageNamed…] and [UIImage imageWithData…]? http://stackoverflow.com/questions/316236/difference-between-uiimage-imagenamed-and-uiimage-imagewithdata re using it you might want to load the image from a data object to make sure it's removed from memory when you're done. If you don't have any huge images I wouldn't worry about it. Unless you see a problem and kudos for checking Object Allocation instead of preemptively optimizing I would choose less lines of code over negligible..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework 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 precise frequencies from FFT Bins using phase..
UIImagePickerController camera preview is portrait in landscape app http://stackoverflow.com/questions/538041/uiimagepickercontroller-camera-preview-is-portrait-in-landscape-app that this is defect and is working on it. My question is does anyone have a work around legal or illegal that would allow me to get this working now. I wouldn't release to the App Store with an illegal fix but I would have a much better app for user testing currently the camera is pretty much unusable in landscape. I will..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone horizontal bar charts I believe axis labels including aribrarty rotations and fills and backgrounds for graphs. I'm not sure about stacked bar charts but it wouldn't be hard to add to the CPBarPlot class that implements bar charts. As for annotations there is a CPAnotation class which you could subclass to add your annotations..
iOS PNG Image rotated 90 degrees http://stackoverflow.com/questions/10307521/ios-png-image-rotated-90-degrees image rotates 90 degrees. I've searched everywhere on this and one of the things I learned is that if I used JPEGs I wouldn't have this problem it sounds due to the EXIF information. My app has full copy paste functionality and here's the kicker..
When should I release objects in -(void)viewDidUnload rather than in -dealloc? http://stackoverflow.com/questions/1158788/when-should-i-release-objects-in-voidviewdidunload-rather-than-in-dealloc What is the void viewDidUnload is good for Could I not just relase everything in dealloc If the view did unload wouldn't dealloc be called anyway iphone objective c ios cocoa touch memory management share improve this question In addition..
Error in xcode project: ld: library not found for -lcrt1.10.6.o http://stackoverflow.com/questions/1365211/error-in-xcode-project-ld-library-not-found-for-lcrt1-10-6-o
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone this Note The printf calls are only for demonstrating the state of the data at various points in a real application it wouldn't make sense to print such values. int main int argc const char argv NSAutoreleasePool pool NSAutoreleasePool alloc init NSString..
Paging UIScrollView in increments smaller than frame size http://stackoverflow.com/questions/1677085/paging-uiscrollview-in-increments-smaller-than-frame-size in a paged manner always stopping with an icon in the exact center. If the icons were the width of the screen this wouldn't be a problem because the UIScrollView's paging would take care of it. But because my little icons are much less than the..
Where's the iPhone MIME type database? http://stackoverflow.com/questions/2439020/wheres-the-iphone-mime-type-database phone. Does this exist iphone objective c cocoa cocoa touch share improve this question If it did your app surely wouldn't have permissions to even read it directly. What are you trying to do EDIT This is a function I wrote a while ago. I wrote..
Localization of icon and default screen in iPhone http://stackoverflow.com/questions/2700311/localization-of-icon-and-default-screen-in-iphone should be possible as they're just image resources but I found no explicit mention of this in the documentation and I wouldn't like to have my app rejected or failing for this. iphone localization icons share improve this question Official documentation..
Problem dealloc'ing memory used by UIImageViews with fairly large image in an UIScrollView http://stackoverflow.com/questions/289360/problem-deallocing-memory-used-by-uiimageviews-with-fairly-large-image-in-an-ui most of the memory it lost. UPDATE2 The reason I'm asking this is my app is actually crashing due to low memory. I wouldn't mind if it were just caching and using up extra memory but it doesn't seem to ever release it even in didReceiveMmoryWarning..
Remove gradient background from UIWebView? http://stackoverflow.com/questions/3009063/remove-gradient-background-from-uiwebview questions 655225 uiwebview underside ios iphone uiwebview share improve this question Aha yes terminology fail. I wouldn't call that a shadow at all but c'est la vie. Here is my type safe code to achieve the effect. To summarise this will hide..
Autoplay audio files on an iPad with HTML5 http://stackoverflow.com/questions/3009888/autoplay-audio-files-on-an-ipad-with-html5 want to autoplay video and audio on IPad because of the high amout of traffic you can use on mobile networks. I wouldn't use autoplay for online content. For Offline HTML sites it's a great feature and thats what I've used it for. Here is a..
Entering background on iOS4 to play audio http://stackoverflow.com/questions/3161635/entering-background-on-ios4-to-play-audio Do I also have to use their new delegates somehow or call the audio on the applicationDidEnterBackground To me that wouldn't make sense since I am not saving state they do for me with fast app switching or really handling anything in the background..
Difference between [UIImage imageNamed…] and [UIImage imageWithData…]? http://stackoverflow.com/questions/316236/difference-between-uiimage-imagenamed-and-uiimage-imagewithdata image from a data object to make sure it's removed from memory when you're done. If you don't have any huge images I wouldn't worry about it. Unless you see a problem and kudos for checking Object Allocation instead of preemptively optimizing I would..
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 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 this question This is now possible iOS 4.1 via the Captive..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework 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 precise..
UITextField in UIAlertView on iPhone - how to make it responsive? http://stackoverflow.com/questions/376104/uitextfield-in-uialertview-on-iphone-how-to-make-it-responsive on iPhone how to make it responsive I placed a UITextField into a UIAlertView and moved it up so the keyboard wouldn't cover it up with the following code dialog setDelegate self dialog setTitle @ Enter Name dialog addButtonWithTitle @ Cancel..
How to detect the end of loading of UITableView http://stackoverflow.com/questions/4163579/how-to-detect-the-end-of-loading-of-uitableview UPDATE Well @htafoya's comment is right. If you want this code to detect end of loading all data from source it wouldn't but that's not the original question. This code is for detecting when all cells that are meant to be visible are displayed...
Can I write native iPhone apps using Python http://stackoverflow.com/questions/43315/can-i-write-native-iphone-apps-using-python the iPhone SDK are C C and Objective C. There is no technical reason why this could not change in the future but I wouldn't hold your breath for this happening in the short term. That said Objective C really isn't that scary... share improve this..
UIImagePickerController camera preview is portrait in landscape app http://stackoverflow.com/questions/538041/uiimagepickercontroller-camera-preview-is-portrait-in-landscape-app on it. My question is does anyone have a work around legal or illegal that would allow me to get this working now. I wouldn't release to the App Store with an illegal fix but I would have a much better app for user testing currently the camera is..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone including aribrarty rotations and fills and backgrounds for graphs. I'm not sure about stacked bar charts but it wouldn't be hard to add to the CPBarPlot class that implements bar charts. As for annotations there is a CPAnotation class which..
UIWebView - How to identify the “last” webViewDidFinishLoad message? http://stackoverflow.com/questions/908367/uiwebview-how-to-identify-the-last-webviewdidfinishload-message that all loading of content is done iphone objective c uiwebview share improve this question Interesting I wouldn't have thought it would work like that. Although I'm sure there are other ways to do it is there a way to extract the URL..
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