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2014/10/15 ¤U¤È 10:14:43
iphone Programming Glossary: takingUIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos seems to take NSData info as an input and the UIImagePickerController returns a UIImage after taking a snapshot. In theory if we use the selected from the UIkit category for UIImage NSData UIImageJPEGRepresentation..
Notification of or detecting screenshot being taken? http://stackoverflow.com/questions/2121970/notification-of-or-detecting-screenshot-being-taken being taken Is there a notification or other mechanism of being informed that the user is taking a screenshot with the home power buttons I've seen threads about wanting to disable the taking of screenshots.. is taking a screenshot with the home power buttons I've seen threads about wanting to disable the taking of screenshots but that's not what I'm looking to do. I have a photographer client who's concerned that.. do. I have a photographer client who's concerned that his works will be copied by means of users taking screenshots and I thought that if there was an opportunity to put a watermark across the image before..
http://stackoverflow.com/questions/2870680/horizontal-uitableview so doing a transform does not give the desired effect. Is there a standard way to do this taking advantage of a datasource provider like uitableview provides I basically want to do somthing similar..
How to customize the background/border colors of a grouped table view cell? http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell the clip rect is set to only draw the appropriate corners so we fill and stroke a rounded rect taking the entire rect CGContextBeginPath c addRoundedRectToPath c rect 10.0f 10.0f CGContextFillPath c CGContextSetLineWidth..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events radio on is sucking my battery down very quickly. Using the approach which I posted in Update 2 is taking nearly no energy. According to the userexperience this is a better approach. Maybe other Apps work like..
Number of days between two NSDates http://stackoverflow.com/questions/4739483/number-of-days-between-two-nsdates of days between two NSDates How could I determine the number of days between two NSDate values taking into consideration time as well The NSDate values are in whatever form NSDate date takes. Specifically..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload it landscape the image gets uploaded to the server and it viewed like you would expect. when taking a picture holding the phone in portrait the image is uploaded and viewed as it had been rotated 90 degrees... after uploading the image appears to be correct as displayed in an UIImageView directly after taking the picture but viewing on the server says otherwise. iphone cocoa touch ios share improve this question..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height of the UIPickerView but I have found that you can achieve a change in the height of the view by taking complete control and passing a desired frame size at creation time e.g smallerPicker UIPickerView alloc..
CADisplayLink OpenGL rendering breaks UIScrollView behaviour http://stackoverflow.com/questions/5944050/cadisplaylink-opengl-rendering-breaks-uiscrollview-behaviour are what's breaking UIScrollView's scrolling behavior here. Your OpenGL ES rendering might be taking long enough for each frame to throw off the timing of a UIScrollView when using NSRunLoopCommonModes..
Example or explanation of Core Data Migration with multiple passes? http://stackoverflow.com/questions/5995231/example-or-explanation-of-core-data-migration-with-multiple-passes the first part of the answer to your question. We will do the migration in two steps because it's taking long to migrate 2k entries and we like to keep the memory footprint low. You could even go ahead and..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c modulo m then throws away the random number if it's between n and m. More naive techniques like taking random modulo n introduce a bias towards smaller numbers in the range. static NSUInteger random_below..
Faster alternative to glReadPixels in iPhone OpenGL ES 2.0 http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0 was the bottleneck in reading 720p video frames for encoding to disk. It limited the encoding from taking place at anything more than 8 9 FPS. Replacing this with the fast texture cache reads allows me to encode..
http://stackoverflow.com/questions/982476/iphone-app-without-appstore platform. A couple of questions Is it possible to sell iPhone apps with out the app store Apple taking a 40 cut of a 99c iFart app is one thing but this is a 3000 engineering calculation app. We have also..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos the UIImagePickerController After a deeper look this library seems to take NSData info as an input and the UIImagePickerController returns a UIImage after taking a snapshot. In theory if we use the selected from the UIkit category for UIImage NSData UIImageJPEGRepresentation UIImage image CGFloat compressionQuality Then..
Notification of or detecting screenshot being taken? http://stackoverflow.com/questions/2121970/notification-of-or-detecting-screenshot-being-taken of or detecting screenshot being taken Is there a notification or other mechanism of being informed that the user is taking a screenshot with the home power buttons I've seen threads about wanting to disable the taking of screenshots but that's not what I'm looking to do. I have a photographer.. or other mechanism of being informed that the user is taking a screenshot with the home power buttons I've seen threads about wanting to disable the taking of screenshots but that's not what I'm looking to do. I have a photographer client who's concerned that his works will be copied by means of users taking screenshots.. the taking of screenshots but that's not what I'm looking to do. I have a photographer client who's concerned that his works will be copied by means of users taking screenshots and I thought that if there was an opportunity to put a watermark across the image before the screenshot was taken that would allay his fears. iphone..
http://stackoverflow.com/questions/2870680/horizontal-uitableview I've seen that UItableView is designed to only do vertical scrolling so doing a transform does not give the desired effect. Is there a standard way to do this taking advantage of a datasource provider like uitableview provides I basically want to do somthing similar to what the BBC News reader app http itunes.apple.com us app..
How to customize the background/border colors of a grouped table view cell? http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell to bother drawing rounded corners so we return At this point the clip rect is set to only draw the appropriate corners so we fill and stroke a rounded rect taking the entire rect CGContextBeginPath c addRoundedRectToPath c rect 10.0f 10.0f CGContextFillPath c CGContextSetLineWidth c 1 CGContextBeginPath c addRoundedRectToPath..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events something. Using the location callbacks with having the GPS radio on is sucking my battery down very quickly. Using the approach which I posted in Update 2 is taking nearly no energy. According to the userexperience this is a better approach. Maybe other Apps work like this hiding its behavior behind GPS functionality ... share..
Number of days between two NSDates http://stackoverflow.com/questions/4739483/number-of-days-between-two-nsdates of days between two NSDates How could I determine the number of days between two NSDate values taking into consideration time as well The NSDate values are in whatever form NSDate date takes. Specifically when a user enters the inactive state in my iPhone app I..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload the problem when i take a picture with the iphone while holding it landscape the image gets uploaded to the server and it viewed like you would expect. when taking a picture holding the phone in portrait the image is uploaded and viewed as it had been rotated 90 degrees. my application is set to only work in portrait modes.. . How can i make the image always show the correct orientation after uploading the image appears to be correct as displayed in an UIImageView directly after taking the picture but viewing on the server says otherwise. iphone cocoa touch ios share improve this question A UIImage has a property imageOrientation which instructs..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height doesn't particularly invite mucking with the default height of the UIPickerView but I have found that you can achieve a change in the height of the view by taking complete control and passing a desired frame size at creation time e.g smallerPicker UIPickerView alloc initWithFrame CGRectMake 0.0 0.0 320.0 120.0 You will discover..
CADisplayLink OpenGL rendering breaks UIScrollView behaviour http://stackoverflow.com/questions/5944050/cadisplaylink-opengl-rendering-breaks-uiscrollview-behaviour slow updates on the main thread triggered by the CADisplayLink are what's breaking UIScrollView's scrolling behavior here. Your OpenGL ES rendering might be taking long enough for each frame to throw off the timing of a UIScrollView when using NSRunLoopCommonModes for the CADisplayLink. One way around this is to perform your..
Example or explanation of Core Data Migration with multiple passes? http://stackoverflow.com/questions/5995231/example-or-explanation-of-core-data-migration-with-multiple-passes by hand and this we do with mapping models. This is also the first part of the answer to your question. We will do the migration in two steps because it's taking long to migrate 2k entries and we like to keep the memory footprint low. You could even go ahead and split these mapping models further to migrate only ranges of..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c Computes m a power of two slightly above n and takes random modulo m then throws away the random number if it's between n and m. More naive techniques like taking random modulo n introduce a bias towards smaller numbers in the range. static NSUInteger random_below NSUInteger n NSUInteger m 1 Compute smallest power of two..
Faster alternative to glReadPixels in iPhone OpenGL ES 2.0 http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0 in my benchmarks. I found that on my iPhone 4 glReadPixels was the bottleneck in reading 720p video frames for encoding to disk. It limited the encoding from taking place at anything more than 8 9 FPS. Replacing this with the fast texture cache reads allows me to encode 720p video at 20 FPS now and the bottleneck has moved..
http://stackoverflow.com/questions/982476/iphone-app-without-appstore have iPhones we are considering moving to the much nicer newer platform. A couple of questions Is it possible to sell iPhone apps with out the app store Apple taking a 40 cut of a 99c iFart app is one thing but this is a 3000 engineering calculation app. We have also heard of the hassles some people have had getting apps approved...
iOS Image Orientation has Strange Behavior http://stackoverflow.com/questions/10600613/ios-image-orientation-has-strange-behavior imageOrientation Would the best fix for this problem be to just blow away imageOrientation as soon as the user is done taking an image. I assume Apple has the rotation behavior done for a reason right A few people suggested that this is an Apple..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos deeper look this library seems to take NSData info as an input and the UIImagePickerController returns a UIImage after taking a snapshot. In theory if we use the selected from the UIkit category for UIImage NSData UIImageJPEGRepresentation UIImage..
iPhone UITableView - Delete Button http://stackoverflow.com/questions/2104403/iphone-uitableview-delete-button cell.imageView.image UIImage imageNamed @ Example_Image.png #else cell.text @ Example #endif return cell Thank you for taking the time to read this post. iphone uitableview delete uitableviewcell share improve this question Iwat's code doesn't..
Notification of or detecting screenshot being taken? http://stackoverflow.com/questions/2121970/notification-of-or-detecting-screenshot-being-taken of or detecting screenshot being taken Is there a notification or other mechanism of being informed that the user is taking a screenshot with the home power buttons I've seen threads about wanting to disable the taking of screenshots but that's.. that the user is taking a screenshot with the home power buttons I've seen threads about wanting to disable the taking of screenshots but that's not what I'm looking to do. I have a photographer client who's concerned that his works will be.. what I'm looking to do. I have a photographer client who's concerned that his works will be copied by means of users taking screenshots and I thought that if there was an opportunity to put a watermark across the image before the screenshot was..
http://stackoverflow.com/questions/2870680/horizontal-uitableview only do vertical scrolling so doing a transform does not give the desired effect. Is there a standard way to do this taking advantage of a datasource provider like uitableview provides I basically want to do somthing similar to what the BBC News..
How to customize the background/border colors of a grouped table view cell? http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell we return At this point the clip rect is set to only draw the appropriate corners so we fill and stroke a rounded rect taking the entire rect CGContextBeginPath c addRoundedRectToPath c rect 10.0f 10.0f CGContextFillPath c CGContextSetLineWidth c..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events with having the GPS radio on is sucking my battery down very quickly. Using the approach which I posted in Update 2 is taking nearly no energy. According to the userexperience this is a better approach. Maybe other Apps work like this hiding its..
Number of days between two NSDates http://stackoverflow.com/questions/4739483/number-of-days-between-two-nsdates of days between two NSDates How could I determine the number of days between two NSDate values taking into consideration time as well The NSDate values are in whatever form NSDate date takes. Specifically when a user enters..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload the iphone while holding it landscape the image gets uploaded to the server and it viewed like you would expect. when taking a picture holding the phone in portrait the image is uploaded and viewed as it had been rotated 90 degrees. my application.. the correct orientation after uploading the image appears to be correct as displayed in an UIImageView directly after taking the picture but viewing on the server says otherwise. iphone cocoa touch ios share improve this question A UIImage..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height the default height of the UIPickerView but I have found that you can achieve a change in the height of the view by taking complete control and passing a desired frame size at creation time e.g smallerPicker UIPickerView alloc initWithFrame CGRectMake..
CADisplayLink OpenGL rendering breaks UIScrollView behaviour http://stackoverflow.com/questions/5944050/cadisplaylink-opengl-rendering-breaks-uiscrollview-behaviour by the CADisplayLink are what's breaking UIScrollView's scrolling behavior here. Your OpenGL ES rendering might be taking long enough for each frame to throw off the timing of a UIScrollView when using NSRunLoopCommonModes for the CADisplayLink...
Example or explanation of Core Data Migration with multiple passes? http://stackoverflow.com/questions/5995231/example-or-explanation-of-core-data-migration-with-multiple-passes models. This is also the first part of the answer to your question. We will do the migration in two steps because it's taking long to migrate 2k entries and we like to keep the memory footprint low. You could even go ahead and split these mapping..
How to log all methods used in iOS app http://stackoverflow.com/questions/7270502/how-to-log-all-methods-used-in-ios-app to log all methods used in iOS app I'm taking over the development of an iPad app for a client. There's a substantial amount of work that's already been done and I'm..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c n and takes random modulo m then throws away the random number if it's between n and m. More naive techniques like taking random modulo n introduce a bias towards smaller numbers in the range. static NSUInteger random_below NSUInteger n NSUInteger..
Faster alternative to glReadPixels in iPhone OpenGL ES 2.0 http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0 4 glReadPixels was the bottleneck in reading 720p video frames for encoding to disk. It limited the encoding from taking place at anything more than 8 9 FPS. Replacing this with the fast texture cache reads allows me to encode 720p video at..
http://stackoverflow.com/questions/982476/iphone-app-without-appstore the much nicer newer platform. A couple of questions Is it possible to sell iPhone apps with out the app store Apple taking a 40 cut of a 99c iFart app is one thing but this is a 3000 engineering calculation app. We have also heard of the hassles..
Extend app for iPhone 5 - best practice http://stackoverflow.com/questions/12518879/extend-app-for-iphone-5-best-practice SO to clue me in onto what the best way is to build for both screens. iphone iphone 5 share improve this question Taking advantage of the full 4 screen in your apps seems to be as simple as adding a new Default image named Default 568h@2x.png..
how do you determine spacing between cells in UICollectionView flowLayout http://stackoverflow.com/questions/13017257/how-do-you-determine-spacing-between-cells-in-uicollectionview-flowlayout cells doesn't even stick. Any other idea iphone objective c ios ipad uicollectionview share improve this question Taking @matt's lead I modified his code to insure that items are ALWAYS left aligned. I found that if an item ended up on a line..
iphone MPMoviePlayerViewController CGContext Errors http://stackoverflow.com/questions/13203336/iphone-mpmovieplayerviewcontroller-cgcontext-errors and played the movie no problem the only issue was these error messages which I didn't want showing up in the console. Taking a hint from Norman's solution I simply wrapped the call in an artificial drawing context like this UIGraphicsBeginImageContext..
Taking time to load the image from URL to UIImageview http://stackoverflow.com/questions/18506744/taking-time-to-load-the-image-from-url-to-uiimageview time to load the image from URL to UIImageview I am using this code for displaying the image from URL to UIImageview UIImageView..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 SYMROOT CONFIGURATION iphoneos CURRENTCONFIG_SIMULATOR_DIR SYMROOT CONFIGURATION iphonesimulator echo Taking device build from CURRENTCONFIG_DEVICE_DIR echo Taking simulator build from CURRENTCONFIG_SIMULATOR_DIR CREATING_UNIVERSAL_DIR.. SYMROOT CONFIGURATION iphonesimulator echo Taking device build from CURRENTCONFIG_DEVICE_DIR echo Taking simulator build from CURRENTCONFIG_SIMULATOR_DIR CREATING_UNIVERSAL_DIR SYMROOT CONFIGURATION universal echo ...I will output..
NSMutablearray move object from index to index http://stackoverflow.com/questions/4349669/nsmutablearray-move-object-from-index-to-index retain autorelease self.array removeObjectAtIndex index self.array insertObject object atIndex newIndex That's all. Taking care of the retain count is important since the array might be the only one referencing the object. share improve this..
http://stackoverflow.com/questions/4667832/barcode-reader-for-3g link to which when image of barcode is send will respond with the code generated or any API which does the same i.e. Taking picture and generating code. And Secondly From Where does we get the information about the produce related to that barcode..
How to use NSString's sizeWithFont and drawInRect to workout how much of a string to draw http://stackoverflow.com/questions/4965809/how-to-use-nsstrings-sizewithfont-and-drawinrect-to-workout-how-much-of-a-strin floor initialPageHeight theFont.lineHeight CGFloat optimalPageHeight linesWithoutClipping theFont.lineHeight Taking the floor value 18 and multiplying with the font line height 16 we get an optimal page height of 288 to ensure there's no..
http://stackoverflow.com/questions/5590216/polaroid-filter-from-uiimage on how to filter an existing UIImage to convert it into a polaroid style and come across this stackoverflow link. Taking the answer there as a starting point I looped through each pixel of the image taking RGB values and converted them to HSV..
iPhone Xcode Camera Integration Tutorials http://stackoverflow.com/questions/6389375/iphone-xcode-camera-integration-tutorials use this to present the image in the next view like you require in `#3`. self dismissModalViewControllerAnimated YES Taking the picture is done automatically by the UIImagePickerController instance. However if you want to override their controls..
Taking an iAd across multiple screens http://stackoverflow.com/questions/7030452/taking-an-iad-across-multiple-screens an iAd across multiple screens I'm sure there's a simple answer to this but it's beginning to annoy me now I have an iAd..
Taking a picture from the camera and show it in a UIImageView http://stackoverflow.com/questions/7820511/taking-a-picture-from-the-camera-and-show-it-in-a-uiimageview a picture from the camera and show it in a UIImageView I have a view with some fields name price category and a segmented..
wait_fences: failed to receive reply: 10004003 (Again) http://stackoverflow.com/questions/8994998/wait-fences-failed-to-receive-reply-10004003-again With that NSLog statement controlling the appearance of the warning. Edit 4 Feb 2 Welcome to the Temple of Doom Taking Allen's comments to heart I rebuilt my keyboard as a XIB and loaded that instead of manually trying to build the view. Of..
Incorrect number of objects getting added to mutable array http://stackoverflow.com/questions/9091647/incorrect-number-of-objects-getting-added-to-mutable-array assigned tag values and then created a mutable array added the textfield to that array.Here is the implementation code Taking in regard the suggestion given by Mr.Lanc I have changed the implementation code EDIT UITableViewCell tableView UITableView..
http://stackoverflow.com/questions/932522/iphone-vs-android solution it's barely workable even on a standard PC so this may yet be a significant issue for Android acceptance. Taking things as they are right now my experience with the Android platform vs the iPhone are The iPhone is much more polished..
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