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2014/10/15 ¤U¤È 10:12:48
iphone Programming Glossary: pointsRetrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage share improve this question Yes CGContexts have their y axis pointing up while in UIKit it points down. See the docs . Edit after reading code You also want to set the blend mode to replace before drawing..
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone roxxers my boxxers and yours will be too roxxersboxxers.com If you sign up now you'll get 3 200 RB points Apple has restrictions for automated or even partially automated SMS and dialing operations. Imagine..
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate] http://stackoverflow.com/questions/12396545/ios-6-apps-how-to-deal-with-iphone-5-screen-size from what I could tell in today's presentation. They will be letterboxed or basically the extra 88 points in height would simply be black. If you only plan to support iOS 6 then definitely consider using Auto.. navigation bar and or tab bar could simply expand the content in the middle to use up that extra points. Set the autoresizing mask of the center content to expand in both directions. view.autoresizingMask.. 5 . If that sounds ugly then you could go with the default letterboxed model where the extra points pixels just show up black. Edit To enable your apps to work with iPhone 5 you need to add a retina version..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices The use of fabs with the epsilon is here to prevent precision errors when comparing floating points as pointed in the comments by H2CO3. So from now on you can use it in standard if else statements if..
iPhone how to check that a string is numeric only http://stackoverflow.com/questions/1320295/iphone-how-to-check-that-a-string-is-numeric-only the string input from a UITextField I want to check that the string is numeric including decimal points. iphone objective c nsstring uitextfield input validation share improve this question I use this..
iOS crash reports: atos not working as expected http://stackoverflow.com/questions/13574933/ios-crash-reports-atos-not-working-as-expected from the same class that's mentioned in the crash log MyViewController MyImageTask . Instead atos points me to totally benign lines of code in a completely unrelated class. I verified again that I'm working..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone 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..
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 If you find the answer useful please vote up the question being a community wiki I should not get points for this voting but it will help others find it How can I get a path into which file writes are allowed..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew P . . Q x x' . R . S y y' . . 1 . z z' . T . U 1 w' with appropriate P Q R S T U that maps the 4 points to the expected locations. 6 unique coordinates and 6 variables should have exactly 1 solution most..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework 512 44Hz The highest frequency we can detect known as the Nyquist frequency is where every pair of points represents a wave ie 512 complete waves within the window ie 512 44Hz or n 2 bin 1 .idealFreq Actually..
Choosing the right IOS XML parser http://stackoverflow.com/questions/4181690/choosing-the-right-ios-xml-parser for the iPhone. I have a medium sized XML file that contains alot of duplicate tags at different points in the hierarchy . I was thinking about TBXML but I was concerned about its lack of XPath support. For..
iPhone smooth sketch drawing algorithm http://stackoverflow.com/questions/5076622/iphone-smooth-sketch-drawing-algorithm the screen I called void touchesEnded NSSet touches withEvent UIEvent event then I draw all the points in the array using NSMutableArray points collectedArray points CGPoint firstPoint points objectAtIndex.. NSSet touches withEvent UIEvent event then I draw all the points in the array using NSMutableArray points collectedArray points CGPoint firstPoint points objectAtIndex 0 getValue firstPoint CGContextMoveToPoint.. UIEvent event then I draw all the points in the array using NSMutableArray points collectedArray points CGPoint firstPoint points objectAtIndex 0 getValue firstPoint CGContextMoveToPoint context firstPoint.x..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare you have to address in a real world application. For example using offset instead of fixed ending points or defining measures of fit see this paper page 363 5. boundary conditions and page 364. The above linked..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage kCGBlendModeCopy iphone uikit core graphics quartz graphics share improve this question Yes CGContexts have their y axis pointing up while in UIKit it points down. See the docs . Edit after reading code You also want to set the blend mode to replace before drawing the image since you want the image's alpha value not..
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone to have spams from your friends Try out this new game It roxxers my boxxers and yours will be too roxxersboxxers.com If you sign up now you'll get 3 200 RB points Apple has restrictions for automated or even partially automated SMS and dialing operations. Imagine if the game instead dialed 911 at a particular time of day..
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate] http://stackoverflow.com/questions/12396545/ios-6-apps-how-to-deal-with-iphone-5-screen-size will continue to work in the vertically stretched screen from what I could tell in today's presentation. They will be letterboxed or basically the extra 88 points in height would simply be black. If you only plan to support iOS 6 then definitely consider using Auto Layout. It removes all fixed layout handling and instead.. application. A majority of applications that use a standard navigation bar and or tab bar could simply expand the content in the middle to use up that extra points. Set the autoresizing mask of the center content to expand in both directions. view.autoresizingMask UIViewAutoresizingFlexibleWidth UIViewAutoresizingFlexibleHeight.. only remaining option is to have two UIs pre iPhone 5 and iPhone 5 . If that sounds ugly then you could go with the default letterboxed model where the extra points pixels just show up black. Edit To enable your apps to work with iPhone 5 you need to add a retina version of the launcher image. It should be named Default 568h@2x.png..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices UIScreen mainScreen bounds .size.height double 568 DBL_EPSILON The use of fabs with the epsilon is here to prevent precision errors when comparing floating points as pointed in the comments by H2CO3. So from now on you can use it in standard if else statements if IS_IPHONE_5 else Edit Better detection As stated by some people..
iPhone how to check that a string is numeric only http://stackoverflow.com/questions/1320295/iphone-how-to-check-that-a-string-is-numeric-only how to check that a string is numeric only How do I validate the string input from a UITextField I want to check that the string is numeric including decimal points. iphone objective c nsstring uitextfield input validation share improve this question I use this code in my Mac app the same or similar should work with the..
iOS crash reports: atos not working as expected http://stackoverflow.com/questions/13574933/ios-crash-reports-atos-not-working-as-expected get completely different match. The atos output is not even from the same class that's mentioned in the crash log MyViewController MyImageTask . Instead atos points me to totally benign lines of code in a completely unrelated class. I verified again that I'm working with the exact dSYM and IPA that I submitted to Apple. My..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone include their code for the NSData 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..
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 wiki so that others may flesh out question and answer s . If you find the answer useful please vote up the question being a community wiki I should not get points for this voting but it will help others find it How can I get a path into which file writes are allowed on the iPhone You can misleadingly write anywhere you like..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew graphics rules so you could cheat by using the transform P . . Q x x' . R . S y y' . . 1 . z z' . T . U 1 w' with appropriate P Q R S T U that maps 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..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework 44Hz wave. bin 2 .idealFreq 2 44Hz etc. bin 512 .idealFreq 512 44Hz The highest frequency we can detect known as the Nyquist frequency is where every pair of points represents a wave ie 512 complete waves within the window ie 512 44Hz or n 2 bin 1 .idealFreq Actually there is an extra Bin Bin 0 which is often referred to as..
Choosing the right IOS XML parser http://stackoverflow.com/questions/4181690/choosing-the-right-ios-xml-parser IOS XML parser So There are a million different XML parsers for the iPhone. I have a medium sized XML file that contains alot of duplicate tags at different points in the hierarchy . I was thinking about TBXML but I was concerned about its lack of XPath support. For instance lets say my XML file looked like this. blog author..
iPhone smooth sketch drawing algorithm http://stackoverflow.com/questions/5076622/iphone-smooth-sketch-drawing-algorithm withEvent UIEvent event and when the user lefts a finger from the screen I called void touchesEnded NSSet touches withEvent UIEvent event then I draw all the points in the array using NSMutableArray points collectedArray points CGPoint firstPoint points objectAtIndex 0 getValue firstPoint CGContextMoveToPoint context firstPoint.x.. lefts a finger from the screen I called void touchesEnded NSSet touches withEvent UIEvent event then I draw all the points in the array using NSMutableArray points collectedArray points CGPoint firstPoint points objectAtIndex 0 getValue firstPoint CGContextMoveToPoint context firstPoint.x firstPoint.y CGContextSetLineCap context.. the screen I called void touchesEnded NSSet touches withEvent UIEvent event then I draw all the points in the array using NSMutableArray points collectedArray points CGPoint firstPoint points objectAtIndex 0 getValue firstPoint CGContextMoveToPoint context firstPoint.x firstPoint.y CGContextSetLineCap context kCGLineCapRound..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare This is only a sketch of DTW. There are a number of issues you have to address in a real world application. For example using offset instead of fixed ending points or defining measures of fit see this paper page 363 5. boundary conditions and page 364. The above linked paper has further details too. I just noticed you are..
Retrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage quartz graphics share improve this question Yes CGContexts have their y axis pointing up while in UIKit it points down. See the docs . Edit after reading code You also want to set the blend mode to replace before drawing the image since..
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone this new game It roxxers my boxxers and yours will be too roxxersboxxers.com If you sign up now you'll get 3 200 RB points Apple has restrictions for automated or even partially automated SMS and dialing operations. Imagine if the game instead..
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate] http://stackoverflow.com/questions/12396545/ios-6-apps-how-to-deal-with-iphone-5-screen-size stretched screen from what I could tell in today's presentation. They will be letterboxed or basically the extra 88 points in height would simply be black. If you only plan to support iOS 6 then definitely consider using Auto Layout. It removes.. that use a standard navigation bar and or tab bar could simply expand the content in the middle to use up that extra points. Set the autoresizing mask of the center content to expand in both directions. view.autoresizingMask UIViewAutoresizingFlexibleWidth.. pre iPhone 5 and iPhone 5 . If that sounds ugly then you could go with the default letterboxed model where the extra points pixels just show up black. Edit To enable your apps to work with iPhone 5 you need to add a retina version of the launcher..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices double 568 DBL_EPSILON The use of fabs with the epsilon is here to prevent precision errors when comparing floating points as pointed in the comments by H2CO3. So from now on you can use it in standard if else statements if IS_IPHONE_5 else Edit..
iPhone how to check that a string is numeric only http://stackoverflow.com/questions/1320295/iphone-how-to-check-that-a-string-is-numeric-only How do I validate the string input from a UITextField I want to check that the string is numeric including decimal points. iphone objective c nsstring uitextfield input validation share improve this question I use this code in my Mac app..
iOS crash reports: atos not working as expected http://stackoverflow.com/questions/13574933/ios-crash-reports-atos-not-working-as-expected output is not even from the same class that's mentioned in the crash log MyViewController MyImageTask . Instead atos points me to totally benign lines of code in a completely unrelated class. I verified again that I'm working with the exact dSYM..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone 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..
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 answer s . If you find the answer useful please vote up the question being a community wiki I should not get points for this voting but it will help others find it How can I get a path into which file writes are allowed on the iPhone You..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew using the transform P . . Q x x' . R . S y y' . . 1 . z z' . T . U 1 w' with appropriate P Q R S T U that maps the 4 points to the expected locations. 6 unique coordinates and 6 variables should have exactly 1 solution most of the cases. When you..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework bin 512 .idealFreq 512 44Hz The highest frequency we can detect known as the Nyquist frequency is where every pair of points represents a wave ie 512 complete waves within the window ie 512 44Hz or n 2 bin 1 .idealFreq Actually there is an extra..
Choosing the right IOS XML parser http://stackoverflow.com/questions/4181690/choosing-the-right-ios-xml-parser different XML parsers for the iPhone. I have a medium sized XML file that contains alot of duplicate tags at different points in the hierarchy . I was thinking about TBXML but I was concerned about its lack of XPath support. For instance lets say..
iPhone smooth sketch drawing algorithm http://stackoverflow.com/questions/5076622/iphone-smooth-sketch-drawing-algorithm lefts a finger from the screen I called void touchesEnded NSSet touches withEvent UIEvent event then I draw all the points in the array using NSMutableArray points collectedArray points CGPoint firstPoint points objectAtIndex 0 getValue firstPoint.. void touchesEnded NSSet touches withEvent UIEvent event then I draw all the points in the array using NSMutableArray points collectedArray points CGPoint firstPoint points objectAtIndex 0 getValue firstPoint CGContextMoveToPoint context firstPoint.x.. touches withEvent UIEvent event then I draw all the points in the array using NSMutableArray points collectedArray points CGPoint firstPoint points objectAtIndex 0 getValue firstPoint CGContextMoveToPoint context firstPoint.x firstPoint.y CGContextSetLineCap..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare a number of issues you have to address in a real world application. For example using offset instead of fixed ending points or defining measures of fit see this paper page 363 5. boundary conditions and page 364. The above linked paper has further..
adjust corners and crop the image openCV http://stackoverflow.com/questions/13098073/adjust-corners-and-crop-the-image-opencv upper left. For more information on this topic take a look at these thread Sort points in clockwise order Sort Four Points in Clockwise Order Sorting of Points in 2D space Another thing you should take into account is the size of the paper you.. this topic take a look at these thread Sort points in clockwise order Sort Four Points in Clockwise Order Sorting of Points in 2D space Another thing you should take into account is the size of the paper you want to extract. In my example I assume.. center.x points.size center.y center.y points.size return center Helper 0 1 3 2 std vector cv Point sortSquarePointsClockwise std vector cv Point square cv Point center getCenter square std vector cv Point sorted_square for size_t i 0 i..
SouthWest and NorthEast Points http://stackoverflow.com/questions/1605805/southwest-and-northeast-points and NorthEast Points Hi all I am developing an iphone application which uses google API's.I have a set of latitudes and logitudes .I need to..
Can iPad/iPhone Touch Points be Wrong Due to Calibration? http://stackoverflow.com/questions/2733868/can-ipad-iphone-touch-points-be-wrong-due-to-calibration iPad iPhone Touch Points be Wrong Due to Calibration I have an iPad application that uses the whole screen that is UIStatusBarHidden is set true..
http://stackoverflow.com/questions/2956967/drawing-path-by-bezier-curves
http://stackoverflow.com/questions/4317164/save-own-class-with-nscoder you're serializing. @implementation RSHighscore static NSString const kPlayerName @ PlayerName static NSString const kPoints @ Points id initWithCoder NSCoder decoder if self super init playerName decoder decodeObjectForKey kPlayerName retain points.. @implementation RSHighscore static NSString const kPlayerName @ PlayerName static NSString const kPoints @ Points id initWithCoder NSCoder decoder if self super init playerName decoder decodeObjectForKey kPlayerName retain points decoder.. if self super init playerName decoder decodeObjectForKey kPlayerName retain points decoder decodeIntegerForKey kPoints return self void encodeWithCoder NSCoder encoder encoder encodeObject playerName forKey kPlayerName encoder encodeInt points..
http://stackoverflow.com/questions/6436990/draw-line-with-gesture gR UIPanGestureRecognizer sender NSValue value NSValue valueWithCGPoint gR locationInView gR.view Points addObject value holderView setNeedsDisplay NSLog @ End of measuring and I will use the points in Points to draw line above.. gR.view Points addObject value holderView setNeedsDisplay NSLog @ End of measuring and I will use the points in Points to draw line above all the subviews in void drawRect CGRect rect NSLog @ Entered Draw In Rect if Measuring UIColor redColor.. Draw In Rect if Measuring UIColor redColor setStroke UIBezierPath pathToDraw UIBezierPath bezierPath for int n 1 n Points count 1 n NSValue value Points objectAtIndex NSInteger n CGPoint point value CGPointValue pathToDraw moveToPoint point value..
Changing pen width according writing speed http://stackoverflow.com/questions/6490057/changing-pen-width-according-writing-speed i EAGLContext setCurrentContext context glBindFramebufferOES GL_FRAMEBUFFER_OES viewFramebuffer Convert locations from Points to Pixels CGFloat scale self.contentScaleFactor start.x scale start.y scale end.x scale end.y scale Allocate vertex array..
Undo drawing in Paint Application http://stackoverflow.com/questions/6689600/undo-drawing-in-paint-application i EAGLContext setCurrentContext context glBindFramebufferOES GL_FRAMEBUFFER_OES viewFramebuffer Convert locations from Points to Pixels CGFloat scale 1.0 self.contentScaleFactor start.x scale start.y scale end.x scale end.y scale Allocate vertex..
How access an uiview subview partially outside of his parent uiview? http://stackoverflow.com/questions/7622770/how-access-an-uiview-subview-partially-outside-of-his-parent-uiview question You need to implement hitTest CGPoint point withEvent UIEvent event in your MainView. See the documentation Points that lie outside the receiver ™s bounds are never reported as hits even if they actually lie within one of the receiver ™s..
Points to note for Future upgrade of App without new install in iPhone? http://stackoverflow.com/questions/7976750/points-to-note-for-future-upgrade-of-app-without-new-install-in-iphone to note for Future upgrade of App without new install in iPhone What are the points to keep in mind for upgradation of..
Save OpenGL Drawn item as a Image http://stackoverflow.com/questions/9660723/save-opengl-drawn-item-as-a-image i EAGLContext setCurrentContext context glBindFramebufferOES GL_FRAMEBUFFER_OES viewFramebuffer Convert locations from Points to Pixels CGFloat scale self.contentScaleFactor start.x scale start.y scale end.x scale end.y scale Allocate vertex array..
Record the drawing as a m4v video file - OpenGL http://stackoverflow.com/questions/9661259/record-the-drawing-as-a-m4v-video-file-opengl i EAGLContext setCurrentContext context glBindFramebufferOES GL_FRAMEBUFFER_OES viewFramebuffer Convert locations from Points to Pixels CGFloat scale self.contentScaleFactor start.x scale start.y scale end.x scale end.y scale Allocate vertex array..
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