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2014/10/15 ¤U¤È 10:05:28
iphone Programming Glossary: constantsHow to change the device orientation programmatically in iOS 6 http://stackoverflow.com/questions/12650137/how-to-change-the-device-orientation-programmatically-in-ios-6 controller supports a mask of interface orientation values. UIInterfaceOrientationMask Enum These constants are mask bits for specifying a view controller ™s supported interface orientations. typedef enum UIInterfaceOrientationMaskPortrait..
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 this post provides a read only reference to data . Method 1 Writable Pixel Information I defined constants #define RGBA 4 #define RGBA_8_BIT 8 In my UIImage subclass I declared instance variables size_t bytesPerRow..
Programmatically align a toolbar on top of the iPhone keyboard http://stackoverflow.com/questions/158574/programmatically-align-a-toolbar-on-top-of-the-iphone-keyboard navigating form elements for example . Currently I am specifying the toolbar's rectangle with constants but because other elements of the interface are in flux toolbars and nav bars at the top of the screen..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew and 6 variables should have exactly 1 solution most of the cases. When you have found these 6 constants you can craft a CATransform3D . Notice the structure definition is struct CATransform3D CGFloat m11..
http://stackoverflow.com/questions/2496554/easiest-way-to-support-multiple-orientations-how-do-i-load-a-custom-nib-when-th this be called when the app launches Do you push your view inside of this function The orientation constants are not globals you query but rather part of the messages sent the controller by the system. As such..
Setting direction for UISwipeGestureRecognizer http://stackoverflow.com/questions/3319209/setting-direction-for-uiswipegesturerecognizer You may specify multiple directions by specifying multiple UISwipeGestureRecognizerDirection constants using bitwise OR operands. The default direction is UISwipeGestureRecognizerDirectionRight. However..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel CoreText anymore We have new classes in obj c Foundation.framework like NSParagraphStyle and other constants that will make our life easier. Yay So if we have this string NSString text @ Updated 2012 10 14 21..
How to change the device orientation programmatically in iOS 6 http://stackoverflow.com/questions/12650137/how-to-change-the-device-orientation-programmatically-in-ios-6 It returns all of the interface orientations that the view controller supports a mask of interface orientation values. UIInterfaceOrientationMask Enum These constants are mask bits for specifying a view controller ™s supported interface orientations. typedef enum UIInterfaceOrientationMaskPortrait 1 UIInterfaceOrientationPortrait..
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 it the method provided by previous posts and at the bottom of this post provides a read only reference to data . Method 1 Writable Pixel Information I defined constants #define RGBA 4 #define RGBA_8_BIT 8 In my UIImage subclass I declared instance variables size_t bytesPerRow size_t byteCount size_t pixelCount CGContextRef context..
Programmatically align a toolbar on top of the iPhone keyboard http://stackoverflow.com/questions/158574/programmatically-align-a-toolbar-on-top-of-the-iphone-keyboard the top of the iPhone keyboard as in iPhone Safari when you're navigating form elements for example . Currently I am specifying the toolbar's rectangle with constants but because other elements of the interface are in flux toolbars and nav bars at the top of the screen every time we make a minor interface change the toolbar goes..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew the 4 points to the expected locations. 6 unique coordinates and 6 variables should have exactly 1 solution most of the cases. When you have found these 6 constants you can craft a CATransform3D . Notice the structure definition is struct CATransform3D CGFloat m11 m12 m13 m14 CGFloat m21 m22 m23 m24 CGFloat m31 m32 m33 m34..
http://stackoverflow.com/questions/2496554/easiest-way-to-support-multiple-orientations-how-do-i-load-a-custom-nib-when-th in shouldAutorotateToInterfaceOrientation but will this be called when the app launches Do you push your view inside of this function The orientation constants are not globals you query but rather part of the messages sent the controller by the system. As such you cannot easily detect orientation before a view controller..
Setting direction for UISwipeGestureRecognizer http://stackoverflow.com/questions/3319209/setting-direction-for-uiswipegesturerecognizer recognized. It is stated in the docs for UISwipeGestureRecognizer You may specify multiple directions by specifying multiple UISwipeGestureRecognizerDirection constants using bitwise OR operands. The default direction is UISwipeGestureRecognizerDirectionRight. However for me it doesn't work. When all four directions are OR'ed only..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel to make the attributed string we don't need to play with CoreText anymore We have new classes in obj c Foundation.framework like NSParagraphStyle and other constants that will make our life easier. Yay So if we have this string NSString text @ Updated 2012 10 14 21 59 We only need to create the attributed string if _label respondsToSelector..
Optimizing CLLocationManager/CoreLocation to retrieve data points faster on the iPhone http://stackoverflow.com/questions/1081219/optimizing-cllocationmanager-corelocation-to-retrieve-data-points-faster-on-the oldLocation Core Location will likely complain that it can't update the values and give you errors. Also only use the constants for the desiredAccuracy supplied by Apple and no others thus kCLLocationAccuracyBest kCLLocationAccuracyNearestTenMeters..
How to change the device orientation programmatically in iOS 6 http://stackoverflow.com/questions/12650137/how-to-change-the-device-orientation-programmatically-in-ios-6 that the view controller supports a mask of interface orientation values. UIInterfaceOrientationMask Enum These constants are mask bits for specifying a view controller ™s supported interface orientations. typedef enum UIInterfaceOrientationMaskPortrait..
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 and at the bottom of this post provides a read only reference to data . Method 1 Writable Pixel Information I defined constants #define RGBA 4 #define RGBA_8_BIT 8 In my UIImage subclass I declared instance variables size_t bytesPerRow size_t byteCount..
Programmatically align a toolbar on top of the iPhone keyboard http://stackoverflow.com/questions/158574/programmatically-align-a-toolbar-on-top-of-the-iphone-keyboard Safari when you're navigating form elements for example . Currently I am specifying the toolbar's rectangle with constants but because other elements of the interface are in flux toolbars and nav bars at the top of the screen every time we make..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew 6 unique coordinates and 6 variables should have exactly 1 solution most of the cases. When you have found these 6 constants you can craft a CATransform3D . Notice the structure definition is struct CATransform3D CGFloat m11 m12 m13 m14 CGFloat..
http://stackoverflow.com/questions/2496554/easiest-way-to-support-multiple-orientations-how-do-i-load-a-custom-nib-when-th but will this be called when the app launches Do you push your view inside of this function The orientation constants are not globals you query but rather part of the messages sent the controller by the system. As such you cannot easily detect..
How to make half curl animation in iPhone like the maps app? http://stackoverflow.com/questions/2863049/how-to-make-half-curl-animation-in-iphone-like-the-maps-app
Practical rules for premature optimization [closed] http://stackoverflow.com/questions/2978460/practical-rules-for-premature-optimization get called. If n is always less than 5 then the asymptotic performance is irrelevant. In this case the size of the constants will matter more. A simple O n n algorithm could beat a more complicated O n log n algorithm for small n. Or the measurable..
Alternatives to weak linking in iPhone SDK? http://stackoverflow.com/questions/3056016/alternatives-to-weak-linking-in-iphone-sdk nil class exists you can use it else class doesn't exist work around for older OS If you need to use new constants types or functions you can do something like if UIApplicationWillEnterBackgroundNotification nil go ahead and use it If..
ABAddressBook ABSource and ABSourceType http://stackoverflow.com/questions/3108413/abaddressbook-absource-and-absourcetype kABSourceTypeSearchableMask used I am missing something fundamental here. From the documentation... Source Types These constants identify the type of a source. enum kABSourceTypeLocal 0x0 kABSourceTypeExchange 0x1 kABSourceTypeExchangeGAL kABSourceTypeExchange..
Setting direction for UISwipeGestureRecognizer http://stackoverflow.com/questions/3319209/setting-direction-for-uiswipegesturerecognizer UISwipeGestureRecognizer You may specify multiple directions by specifying multiple UISwipeGestureRecognizerDirection constants using bitwise OR operands. The default direction is UISwipeGestureRecognizerDirectionRight. However for me it doesn't work...
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel need to play with CoreText anymore We have new classes in obj c Foundation.framework like NSParagraphStyle and other constants that will make our life easier. Yay So if we have this string NSString text @ Updated 2012 10 14 21 59 We only need to create..
http://stackoverflow.com/questions/5014176/mpmoviewplayercontroller-fullscreen-playback-rotation-with-underlying-uiviewcont playback. But I quite dislike this solution because the UIWindow can't be identified and I do not want to use magic constants like objectAtIndex 1 or apply transformation to all UIWindows except the main one etc. Beside the fact that the underlying..
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 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 is cool. . In Objective..
iPhone - in-App purchase consumable correct approach http://stackoverflow.com/questions/6449312/iphone-in-app-purchase-consumable-correct-approach
http://stackoverflow.com/questions/7465713/how-to-detect-iap-crackers file if it's all in code then it's a bit harder but there are lots of creative solutions out there encrypted string constants e.g. . Whatever it is though it should rely on or check for the presence of some piece of data that it'll get from your..
Change width and colour of scroll bar in UITableView, iphone http://stackoverflow.com/questions/7976593/change-width-and-colour-of-scroll-bar-in-uitableview-iphone indicatorStyle Styles Scroll Indicator Style The style of the scroll indicators. You use these constants to set the value of the indicatorStyle style. typedef enum UIScrollViewIndicatorStyleDefault UIScrollViewIndicatorStyleBlack..
iPhone assembly, compilation error with LDR parameters http://stackoverflow.com/questions/9735169/iphone-assembly-compilation-error-with-ldr-parameters relocation on symbol null Is it possible to override those lines with some other instructions Or to replace them with constants Please help because this post llvm gcc assembler LDR syntax didn't help me to solve this problem. iphone assembly apple.. shadow or some other place that you wont execute through to encourage the assembler to use it to place these kinds of constants. b somewhere .pool I suspect from the error message something else may be going. post a reply or edit or question if that..
Fuzzy Date algorithm in Objective-C http://stackoverflow.com/questions/1052951/fuzzy-date-algorithm-in-objective-c Since the delta calculated by NSDate is given in seconds given two dates you could easily adapt the code above Constants #define SECOND 1 #define MINUTE 60 SECOND #define HOUR 60 MINUTE #define DAY 24 HOUR #define MONTH 30 DAY NSString timeIntervalWithStartDate..
iphone Core Data Unresolved error while saving http://stackoverflow.com/questions/1283960/iphone-core-data-unresolved-error-while-saving with the old model implementation. Edit I almost forgot here's all the error codes that Core Data spits out Core Data Constants Reference I had trouble with this before and I realised I unchecked the correct optional box. Such trouble finding out the..
Is it possible to access iPhone/iPod Touch music stats through the SDK? http://stackoverflow.com/questions/2083117/is-it-possible-to-access-iphone-ipod-touch-music-stats-through-the-sdk song in songs NSString songTitle song valueForProperty MPMediaItemPropertyTitle NSLog @ t t @ songTitle System Constants ... NSString const MPMediaItemPropertyPersistentID filterable NSString const MPMediaItemPropertyMediaType filterable NSString..
http://stackoverflow.com/questions/2377368/class-constants Constants I have several obj c classes each of which require a number of constants that are used in switch statements. I had tried.. classes iphone objective c xcode preprocessor share improve this question Have your own constant file like MyConstants. In MyConstants.h declare all your constants static const int kRedisplayTileCount 5 extern NSString const kCellTitleKey.. objective c xcode preprocessor share improve this question Have your own constant file like MyConstants. In MyConstants.h declare all your constants static const int kRedisplayTileCount 5 extern NSString const kCellTitleKey and in MyConstants.m..
iPhone - Code of system sounds http://stackoverflow.com/questions/5273402/iphone-code-of-system-sounds iphone system sounds share improve this question This is from AudioServices.h #pragma mark AudioServices Constants @enum AudioServices constants @abstract Constants for use with System Sound portion of the AudioServices APIs. @constant.. This is from AudioServices.h #pragma mark AudioServices Constants @enum AudioServices constants @abstract Constants for use with System Sound portion of the AudioServices APIs. @constant kSystemSoundID_UserPreferredAlert Use this constant..
How to populate UITableView with the responce of JSON from a different ViewController? http://stackoverflow.com/questions/8969135/how-to-populate-uitableview-with-the-responce-of-json-from-a-different-viewcontr
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