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2014/10/15 ¤U¤È 10:05:10
iphone Programming Glossary: coRetrieving a pixel alpha value for a UIImage http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiimage image uiImage.CGImage NSUInteger width CGImageGetWidth image NSUInteger height CGImageGetHeight image CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB rawData malloc height width 4 bytesPerPixel 4 bytesPerRow bytesPerPixel width NSUInteger.. malloc height width 4 bytesPerPixel 4 bytesPerRow bytesPerPixel width NSUInteger bitsPerComponent 8 CGContextRef context CGBitmapContextCreate rawData width height bitsPerComponent bytesPerRow colorSpace kCGImageAlphaPremultipliedLast kCGBitmapByteOrder32Big.. bitsPerComponent 8 CGContextRef context CGBitmapContextCreate rawData width height bitsPerComponent bytesPerRow colorSpace kCGImageAlphaPremultipliedLast kCGBitmapByteOrder32Big CGColorSpaceRelease colorSpace CGContextDrawImage context..
How To Build and Compile PJSIP for Xcode, Using sample code IPJSUA to test? http://stackoverflow.com/questions/11848333/how-to-build-and-compile-pjsip-for-xcode-using-sample-code-ipjsua-to-test To Build and Compile PJSIP for Xcode Using sample code IPJSUA to test How to build and compile PJSIP using xCode and run the sample code IPJSUA iphone ios.. To Build and Compile PJSIP for Xcode Using sample code IPJSUA to test How to build and compile PJSIP using xCode and run the sample code IPJSUA iphone ios xcode ipad pjsip.. To Build and Compile PJSIP for Xcode Using sample code IPJSUA to test How to build and compile PJSIP using xCode and run the sample code IPJSUA iphone ios xcode ipad pjsip share improve this question First..
Sources for learning iPhone Core Data [closed] http://stackoverflow.com/questions/1399322/sources-for-learning-iphone-core-data iPhone. i want to learn Core Data. what are the best sources to learn it. Tutorials Books Thanks in advance. iphone core data share improve this question PragProg have two relevant books in beta their iPhone book includes a solid section.. I found it to be the resource that most helped me click into Core Data before looking in detail at the above books. Of course it is also worth looking through the non iPhone specific Core Data docs. Also Jeff LaMarche co author of the Apress.. the above books. Of course it is also worth looking through the non iPhone specific Core Data docs. Also Jeff LaMarche co author of the Apress Beginning iPhone Dev has been posting up a fair bit of Core Data content on his blog lately including..
Cropping an image in iOS using OpenCV face detection http://stackoverflow.com/questions/14756505/cropping-an-image-in-ios-using-opencv-face-detection an image in iOS using OpenCV face detection I used the below code to crop a face from an image in my face detection code. But I am not getting the proper face images and I am getting some.. an image in iOS using OpenCV face detection I used the below code to crop a face from an image in my face detection code. But I am not getting the proper face images and I am getting some part of the image saved and not the face. What's wrong.. not getting the proper face images and I am getting some part of the image saved and not the face. What's wrong in my code _faceCascade.detectMultiScale mat faces 1.1 2 kHaarOptions cv Size 40 40 And inside the displayfaces functions am cropping..
How do i open Google Maps for directions using coordinates on the iphone http://stackoverflow.com/questions/1548024/how-do-i-open-google-maps-for-directions-using-coordinates-on-the-iphone do i open Google Maps for directions using coordinates on the iphone I am using UIMapView to display locations on the iPhone. I want to do a directions from current.. please inform So I will open either the Google Maps application or safari to display it. Can i do this by specifying co ordinates from current location to co ordinates the location of interest I have these longitudes and latitudes. Or do i.. the Google Maps application or safari to display it. Can i do this by specifying co ordinates from current location to co ordinates the location of interest I have these longitudes and latitudes. Or do i have to use street addresses If I do have..
SQL Query for Performing Radius Search based on Latitude Longitude http://stackoverflow.com/questions/1727137/sql-query-for-performing-radius-search-based-on-latitude-longitude Longitude 74.008680 Latitude 40.711676 Radius 1 mile Query SELECT FROM restaurant WHERE POW 69.1 Longitude 74.008680 cos 40.711676 57.3 2 POW 69.1 Latitude 40.711676 2 1 1 The table has about 23k rows. The size of the result set is weird at.. weird at times e.g. for a 5.4 mile search it gives back 880 rows and for 5.5 miles it gives back 21k rows. This table contains restaurant data for nyc so the real distribution is not as per the result set. Question IS THERE ANYTHING WRONG With.. great circle maths on every row every time you make a query. Personally I would calculate the TopLeft and BottomRight co ordinates of a square which only needs to be crudly calculated using pythagoras with sides equal to the range you are looking..
UITableView : crash when adding a section footer view in empty section http://stackoverflow.com/questions/1893712/uitableview-crash-when-adding-a-section-footer-view-in-empty-section is the first time I ask a question here but I have to say this site has been a tremendous help for me over the last couple months iphone dev wise and I thank you for that. However I didn't find any solution for this problem I'm having I have.. and no rows when the app is launched for the first time. The user can fill the sections later on as he wishes the content is not relevant here . The UITableView looks good when filled with rows but looks pretty ugly when there is none the.. CGFloat tableView UITableView tableView heightForFooterInSection NSInteger section if section 0 if firstSectionArray count 0 return 44 else return 0 return 0 UIView tableView UITableView tableView viewForFooterInSection NSInteger section if..
Why is XCode Organizer console sometimes empty when I connect my iPhone http://stackoverflow.com/questions/2965767/why-is-xcode-organizer-console-sometimes-empty-when-i-connect-my-iphone is XCode Organizer console sometimes empty when I connect my iPhone When testing my iPhone app I have found it incredibly useful to log information.. is XCode Organizer console sometimes empty when I connect my iPhone When testing my iPhone app I have found it incredibly useful to log information to the console window. I.. empty when I connect my iPhone When testing my iPhone app I have found it incredibly useful to log information to the console window. I think it is amazing that I can send out an adhoc build to my co workers and if they experience problems I..
What causes this error? “CALayer position contains NaN: [240 nan]” http://stackoverflow.com/questions/3025176/what-causes-this-error-calayer-position-contains-nan-240-nan causes this error &ldquo CALayer position contains NaN 240 nan &rdquo I've seen this happen whenever i rotate a screen that has a UITableView on it. I've found out.. on it. I've found out that it happens inbetween the willRotate and didRotate method calls in UIViewController My co workers have seen it in other spots as well usually around rotation. It hadnt started happening until very recently and.. as to how we should deal with it google searches don't turn up the error message in its exact form . Has anyone else encountered this that knows what to do about it iphone core animation calayer share improve this question Decided to take..
How to get actual pdf page size in iPad? http://stackoverflow.com/questions/3045587/how-to-get-actual-pdf-page-size-in-ipad get PDF page width and height in iPad Any document or suggestions on how I can find this information iphone ipad pdf core graphics cgpdfdocument share improve this question Here's the code to do it also to convert a point on the page from.. I can find this information iphone ipad pdf core graphics cgpdfdocument share improve this question Here's the code to do it also to convert a point on the page from PDF coordinates to iOS coordinates. See also Get PDF hyperlinks on iOS.. iphone ipad pdf core graphics cgpdfdocument share improve this question Here's the code to do it also to convert a point on the page from PDF coordinates to iOS coordinates. See also Get PDF hyperlinks on iOS with Quartz #import..
NSMutableString as retain/copy http://stackoverflow.com/questions/4995254/nsmutablestring-as-retain-copy as retain copy I have aa number of NSMutableString's in my app almost 10 11 all defined as ivar property @property nonatomic retain.. all defined as ivar property @property nonatomic retain NSMutableString str1 I read somewhere that it is better to use copy for strings. Is that true If yes can I just replace retain to copy in my app and remove the release in dealloc Do I need.. str1 I read somewhere that it is better to use copy for strings. Is that true If yes can I just replace retain to copy in my app and remove the release in dealloc Do I need to consider some other things as well Also is it normal to have..
iPhone Landscape-Only Utility-Template Application http://stackoverflow.com/questions/525737/iphone-landscape-only-utility-template-application horizontally. In Info.plist add the key UIInterfaceOrientation with value UIInterfaceOrientationLandscapeRight In the controller classes change the shouldAutorotateToInterfaceOrientation methods to return interfaceOrientation UIInterfaceOrientationLandscapeRight.. interfaceOrientation UIInterfaceOrientationLandscapeLeft Run the app. When I launch my app it comes up in landscape orientation but the main view only covers the top half of the display and it is stretched horizontally... Run the app. When I launch my app it comes up in landscape orientation but the main view only covers the top half of the display and it is stretched horizontally. I get the same results in both the simulator and on an..
Is there any framework to highlight text on pdf file after rendering on the iphone http://stackoverflow.com/questions/5335799/is-there-any-framework-to-highlight-text-on-pdf-file-after-rendering-on-the-iph pdf which is rendered through the drawLayer . Can any one suggest how I should find a word on a pdf and the position co ordinates of the word on the page Is there any free framework to import or any libraries available After spending more time.. some samples to search a word on pdf those are fastsamplepdf from github random ideas MY WORK I seen fastsample pdf code I understood only the parsing of the pdf to text using MFDocumentManager documentManagerWithFilePath NSString filePath..
Three slightly different Apps from one code base http://stackoverflow.com/questions/8956263/three-slightly-different-apps-from-one-code-base slightly different Apps from one code base Hy there I would like to have three apps depending which are based on the same code MyAppDevelopment Builds from.. different Apps from one code base Hy there I would like to have three apps depending which are based on the same code MyAppDevelopment Builds from Xcode that are deployed to the device MyAppPreview Beta testing MyApp Release It should be.. Hy there I would like to have three apps depending which are based on the same code MyAppDevelopment Builds from Xcode that are deployed to the device MyAppPreview Beta testing MyApp Release It should be possible to have all of the three..
How to get coordinates using abbyy mobile sdk for iphone http://stackoverflow.com/questions/9113119/how-to-get-coordinates-using-abbyy-mobile-sdk-for-iphone to get coordinates using abbyy mobile sdk for iphone I am using sample project of abbyy mobile SDK for iPhone version 4 . using this.. mobile sdk for iphone I am using sample project of abbyy mobile SDK for iPhone version 4 . using this how can i get co ordinates of specific word s of an image using the mobile sdk for iphone . I have checked the API reference and found FineRecognizeRegion.. of specific word s of an image using the mobile sdk for iphone . I have checked the API reference and found FineRecognizeRegion Function but do not know how can i use it to get the co ordinates of a specific word s on an image taken by device..
NSURLConnection delegate method http://stackoverflow.com/questions/9577317/nsurlconnection-delegate-method Not sure how to make a submitting screen and submitted . I know how to use spinner and will use them I am using this code under a botton click action but unable to use any delegate stuff. Not sure how to implement them with my current set up... my current set up. NSMutableURLRequest request NSMutableURLRequest alloc initWithURL NSURL URLWithString @ http myURL.com request setHTTPMethod @ POST NSString postString wait stringByAppendingString co request setValue NSString stringWithFormat.. NSURL URLWithString @ http myURL.com request setHTTPMethod @ POST NSString postString wait stringByAppendingString co request setValue NSString stringWithFormat @ d postString length forHTTPHeaderField @ Content length request setHTTPBody..
iOS development on Windows [duplicate] http://stackoverflow.com/questions/9595507/ios-development-on-windows development on Windows How can I develop for iPhone using a Windows development machine But most of the ways to accomplish this is because the people with this problem make ios apps on windows want to make apps for themselves. Also some.. make ios apps on windows want to make apps for themselves. Also some of them suggest web apps. I'm working for a company who needs to make a little App later other companies will need more and the person who is in charge of all about IT.. themselves. Also some of them suggest web apps. I'm working for a company who needs to make a little App later other companies will need more and the person who is in charge of all about IT told us that we need some facts so we can demonstrate..
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