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2014/10/15 ¤U¤È 10:05:38
iphone Programming Glossary: correspondUIImage imageNamed requires pathForResource? http://stackoverflow.com/questions/10380842/uiimage-imagenamed-requires-pathforresource would work but it ™s trivial to try. What ™s a bit confusing in these cases is that the groups in the Xcode tree do not correspond to folders in the resulting app bundle. Their contents are smashed together to the root of the bundle unless you use a blue..
UIView's frame, bounds, center, origin, when to use what? http://stackoverflow.com/questions/1071112/uiviews-frame-bounds-center-origin-when-to-use-what applications. most controls will be laid out relative to the containing control so the frame.origin will directly correspond to where the control needs to display and frame.size will determine how big to make the control. center this is the property..
iCarousel stop at user picked index http://stackoverflow.com/questions/10767569/icarousel-stop-at-user-picked-index forControlEvents UIControlEventTouchDown view addSubview someButton view bringSubviewToFront someButton Add a tag correspond it to the index someButton.tag index Make sure the view is user interaction enabled view setUserInteractionEnabled YES Also..
Why is my sizeWithFont:constrainedToSize:lineBreakMode: always returning zero? http://stackoverflow.com/questions/1352735/why-is-my-sizewithfontconstrainedtosizelinebreakmode-always-returning-zero displays as 0 . What am I missing Thanks iphone cocoa touch nsstring share improve this question CGFloat s correspond to the C float data type the proper format specifier for them is f NSString text @ A really long string in here CGSize theSize..
How to get the RGB values for a pixel on an image on the iphone http://stackoverflow.com/questions/144250/how-to-get-the-rgb-values-for-a-pixel-on-an-image-on-the-iphone information method 2 Step 1. I declared a type for byte typedef unsigned char byte Step 2. I declared a struct to correspond to a pixel typedef struct RGBPixel byte red byte green byte blue RGBPixel Step 3. I subclassed UIImageView and declared.. typedef struct RGBPixel byte red byte green byte blue RGBPixel Step 3. I subclassed UIImageView and declared with corresponding synthesized properties Reference to Quartz CGImage for receiver self CFDataRef bitmapData Buffer holding raw pixel data..
UITextView contentOffset on iOS 7 http://stackoverflow.com/questions/19115233/uitextview-contentoffset-on-ios-7 different sizes you have to set those to the NSAttributeString instance as well. Otherwise the returned height won't correspond to your expectations. You may want to use something like this NSDictionary attrsDictionary NSDictionary dictionaryWithObject..
A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7 http://stackoverflow.com/questions/19943183/a-complete-solution-to-locally-validate-an-in-app-receipts-and-bundle-receipts-o before parsing the receipt and will be detailed below. Checking that the bundle identifier included in the receipt corresponds to your bundle identifier. You should hardcode your bundle identifier as it doesn't seem to be very difficult to modify.. difficult to modify your app bundle and use some other receipt. Checking that the app version included in the receipt corresponds to your app version identifier. You should hardcode the app version for the same reasons indicated above. Check the receipt.. should hardcode the app version for the same reasons indicated above. Check the receipt hash to make sure the receipt correspond to the current device. The 5 steps in code at a high level from RMStoreAppReceiptVerificator BOOL verifyAppReceipt RMAppReceipt..
Getting iPhone video thumbnails http://stackoverflow.com/questions/2171086/getting-iphone-video-thumbnails some options that boil down to Crawl some filesystem directory for a JPG with the latest modification date that should correspond to the video you just picked. This is extremely messy and involves rooting around in directories Apple would probably not..
Creating a custom UIKeyBoard for iPhone http://stackoverflow.com/questions/2275685/creating-a-custom-uikeyboard-for-iphone characters. Does anyone know how to do this Do I make a new view like the keyboard and pull it up and have the buttons correspond to the textField for input I can't seem to find any information on customizing a keyboard or creating your own. Thanks ..
How do I zoom an MKMapView to the users current location without CLLocationManager? http://stackoverflow.com/questions/2473706/how-do-i-zoom-an-mkmapview-to-the-users-current-location-without-cllocationmanag got or updated the user location so I can move zoom to it If I use my own CLLocationManager the updates I get do not correspond with the updates of the user marker on the map so it looks silly when my map moves and zooms seconds before the blue pin..
Popover with embedded navigation controller doesn't respect size on back nav http://stackoverflow.com/questions/2752394/popover-with-embedded-navigation-controller-doesnt-respect-size-on-back-nav This works as expected as I navigate forward in the hierarchy the popover automatically animates size changes to correspond to the pushed controller. However when I navigate Back through the view stack via the navigation bar's Back button the popover..
UIImage - implementing an auto levels algorithm http://stackoverflow.com/questions/3278560/uiimage-implementing-an-auto-levels-algorithm and blackPoint is also a float that determines which brightness is mapped to pure black. The decode array's elements correspond to the components of the colorspace so this code will only work for RBG images. You can set the components to different..
MKMapView setRegion “snaps” to predefined zoom levels? http://stackoverflow.com/questions/3612007/mkmapview-setregion-snaps-to-predefined-zoom-levels although undocumented or a known bug Specifically it appears that setRegion snaps to the same zoom levels that correspond to the zoom levels used when the user double taps the map. I'm trying to restore a previously saved region but this behavior.. region. It should return the same region since it obviously fits the map's frame but it returns the region that corresponds to the next higher predefined zoom level instead. setVisibleMapRect behaves similarly. Any further insight or information.. in the latitude longitude delta values. The map's values are almost double what I requested. The larger values correspond to one of the zoom levels used when the user double taps the map. iphone mapkit mkmapview share improve this question..
NSDictionary with ordered keys http://stackoverflow.com/questions/376090/nsdictionary-with-ordered-keys I'd always have to update the keys of the dictionary as well as the values of the array and make sure they always correspond. Currently I just use myDictionary allKeys but obviously this returns them in an arbitrary non guaranteed order. Is there..
iPhone FFT with Accelerate framework vDSP http://stackoverflow.com/questions/6358764/iphone-fft-with-accelerate-framework-vdsp and just calculate the squared magnitude re re im im . You would look at the magnitudes of the bin or bins see 2 that correspond to your frequency or frequencies of interest. If your sample rate is Fs and your FFT size is N then the corresponding frequency.. correspond to your frequency or frequencies of interest. If your sample rate is Fs and your FFT size is N then the corresponding frequency for output bin i is given by f i Fs N . Conversely if you are interested in a specific frequency f then the..
AudioQueue how to find out playback length of queued data http://stackoverflow.com/questions/7375309/audioqueue-how-to-find-out-playback-length-of-queued-data I want to stream two seconds of data at a time the problem i am having is how do i know how many bytes actually correspond to two seconds of music so i can always be ahead by two seconds . Thanks Daniel iphone ios audioqueue share improve this.. that uses Audio File Services to get at bitrate packet frame data to grab the amount of bytes from a music file that correspond to x seconds the example has been tested with mp3 and m4a files Header #import Foundation Foundation.h #import AudioToolbox.. int _maxPacketSize BOOL firstTime BOOL _ism4a id initWithURL NSURL url andFileType NSString ext gets next chunk that corresponds to seconds of audio NSData getNextDataChunk int seconds @end Implementation #import MusicChunker.h void ReportAudioError..
How to localize an iphone app for different languages? http://stackoverflow.com/questions/8118425/how-to-localize-an-iphone-app-for-different-languages In the end remember that your app may have a default language setting. If a localization is not created the one that correspond to that default language will be used in place. You can check those links for further information http www.raywenderlich.com..
http://stackoverflow.com/questions/8366033/iphone-opengl-es-texture-unit
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