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2014/10/15 ¤U¤È 10:09:30
iphone Programming Glossary: gaveUIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos convert the UIImage into a NSData instance and then use it with the iPhone exif library. UPDATE I gave a test to the library mentioned above and it seems to work. However because of my limited knwoledge..
gcc-4.2 failed with exit code 1 iphone http://stackoverflow.com/questions/1248520/gcc-4-2-failed-with-exit-code-1-iphone The code introduced a line as such CGContextAddArcToPoint c minx miny midx miny ROUND_SIZE This gave an error indicated that it wasn't declared so I added to my .h file the following under import uikit..
Resizing UIimages pulled from the Camera also ROTATES the UIimage? http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage it is static inline double radians double degrees return degrees M_PI 180 The answer Daniel gave is also correct but it suffers from the problem that it is not thread safe since you're using UIGraphicsBeginImageContext..
iOS 6: How do I restrict some views to portrait and allow others to rotate? http://stackoverflow.com/questions/12630359/ios-6-how-do-i-restrict-some-views-to-portrait-and-allow-others-to-rotate method of the top most full screen controller. So I subclassed UINavigationController gave my MainNavigationController a boolean property landscapeOK and used this to return the allowable orientations..
IOS 6 force device orientation to landscape http://stackoverflow.com/questions/12640870/ios-6-force-device-orientation-to-landscape 6 force device orientation to landscape I gave an app with say 10 view controllers. I use navigation controller to load unload them. All but one are..
Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath: http://stackoverflow.com/questions/12737860/assertion-failure-in-dequeuereusablecellwithidentifierforindexpath So I was making an rss reader for my school and finished the code. I ran the test and it gave me that error. Here is the code it's referring to UITableViewCell tableView UITableView tableView cellForRowAtIndexPath..
How to add a UIImage in MailComposer Sheet of MFMailComposeViewController http://stackoverflow.com/questions/1527351/how-to-add-a-uiimage-in-mailcomposer-sheet-of-mfmailcomposeviewcontroller called NSData Base64 by Matt Gallagher I took the out of the name after copying it in because it gave me problems . Copy the .h and .m files into your project and be sure to #import the .h file where you..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how transparency done on iphone to make this code. Then I realized I'd answered the wrong question gave a rounded UILabel instead of UIImage so I used this code to change it http discussions.apple.com thread.jspa..
How to distribute ios application wirelessly without managing UDIDs and recompilation http://stackoverflow.com/questions/5546581/how-to-distribute-ios-application-wirelessly-without-managing-udids-and-recompil studio doing a much smarter way right now and I wish to know how they did it With a link they gave to us we can install their demo application from a simple HTML over the air and a provisioning profile..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos UIImage image CGFloat compressionQuality Then we can convert the UIImage into a NSData instance and then use it with the iPhone exif library. UPDATE I gave a test to the library mentioned above and it seems to work. However because of my limited knwoledge about the EXIF format and the lack of high level API in the..
gcc-4.2 failed with exit code 1 iphone http://stackoverflow.com/questions/1248520/gcc-4-2-failed-with-exit-code-1-iphone the background colors of cells on a grouped uitableview. The code introduced a line as such CGContextAddArcToPoint c minx miny midx miny ROUND_SIZE This gave an error indicated that it wasn't declared so I added to my .h file the following under import uikit #import UIKit UIKit.h #define ROUND_SIZE 10 Now it shows that..
Resizing UIimages pulled from the Camera also ROTATES the UIimage? http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage to the correct orientation. If you need the definition for radians it is static inline double radians double degrees return degrees M_PI 180 The answer Daniel gave is also correct but it suffers from the problem that it is not thread safe since you're using UIGraphicsBeginImageContext . Since the above code only uses CG functions..
iOS 6: How do I restrict some views to portrait and allow others to rotate? http://stackoverflow.com/questions/12630359/ios-6-how-do-i-restrict-some-views-to-portrait-and-allow-others-to-rotate method with the value returned by the supportedInterfaceOrientations method of the top most full screen controller. So I subclassed UINavigationController gave my MainNavigationController a boolean property landscapeOK and used this to return the allowable orientations in supportedInterfaceOrientations . Then in each of..
IOS 6 force device orientation to landscape http://stackoverflow.com/questions/12640870/ios-6-force-device-orientation-to-landscape 6 force device orientation to landscape I gave an app with say 10 view controllers. I use navigation controller to load unload them. All but one are in portrait mode. Suppose the 7th VC is in landscape. I need..
Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath: http://stackoverflow.com/questions/12737860/assertion-failure-in-dequeuereusablecellwithidentifierforindexpath failure in dequeueReusableCellWithIdentifier forIndexPath So I was making an rss reader for my school and finished the code. I ran the test and it gave me that error. Here is the code it's referring to UITableViewCell tableView UITableView tableView cellForRowAtIndexPath NSIndexPath indexPath static NSString CellIdentifier..
How to add a UIImage in MailComposer Sheet of MFMailComposeViewController http://stackoverflow.com/questions/1527351/how-to-add-a-uiimage-in-mailcomposer-sheet-of-mfmailcomposeviewcontroller there mostly C though but the simplest ObjC one I found was called NSData Base64 by Matt Gallagher I took the out of the name after copying it in because it gave me problems . Copy the .h and .m files into your project and be sure to #import the .h file where you plan on using it. Then code like this will get an image into..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how on the iPhone and the code from How is a rounded rect view with transparency done on iphone to make this code. Then I realized I'd answered the wrong question gave a rounded UILabel instead of UIImage so I used this code to change it http discussions.apple.com thread.jspa threadID 1683876 Make an iPhone project with the View..
How to distribute ios application wirelessly without managing UDIDs and recompilation http://stackoverflow.com/questions/5546581/how-to-distribute-ios-application-wirelessly-without-managing-udids-and-recompil portal. I am asking this question because I am seeing another studio doing a much smarter way right now and I wish to know how they did it With a link they gave to us we can install their demo application from a simple HTML over the air and a provisioning profile magically appears in my iPad. All this happened without me..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos Then we can convert the UIImage into a NSData instance and then use it with the iPhone exif library. UPDATE I gave a test to the library mentioned above and it seems to work. However because of my limited knwoledge about the EXIF format..
gcc-4.2 failed with exit code 1 iphone http://stackoverflow.com/questions/1248520/gcc-4-2-failed-with-exit-code-1-iphone a grouped uitableview. The code introduced a line as such CGContextAddArcToPoint c minx miny midx miny ROUND_SIZE This gave an error indicated that it wasn't declared so I added to my .h file the following under import uikit #import UIKit UIKit.h..
Resizing UIimages pulled from the Camera also ROTATES the UIimage? http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage the definition for radians it is static inline double radians double degrees return degrees M_PI 180 The answer Daniel gave is also correct but it suffers from the problem that it is not thread safe since you're using UIGraphicsBeginImageContext..
iOS 6: How do I restrict some views to portrait and allow others to rotate? http://stackoverflow.com/questions/12630359/ios-6-how-do-i-restrict-some-views-to-portrait-and-allow-others-to-rotate supportedInterfaceOrientations method of the top most full screen controller. So I subclassed UINavigationController gave my MainNavigationController a boolean property landscapeOK and used this to return the allowable orientations in supportedInterfaceOrientations..
IOS 6 force device orientation to landscape http://stackoverflow.com/questions/12640870/ios-6-force-device-orientation-to-landscape 6 force device orientation to landscape I gave an app with say 10 view controllers. I use navigation controller to load unload them. All but one are in portrait mode...
Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath: http://stackoverflow.com/questions/12737860/assertion-failure-in-dequeuereusablecellwithidentifierforindexpath forIndexPath So I was making an rss reader for my school and finished the code. I ran the test and it gave me that error. Here is the code it's referring to UITableViewCell tableView UITableView tableView cellForRowAtIndexPath..
What's the difference between NSNumber and NSInteger? http://stackoverflow.com/questions/1285098/whats-the-difference-between-nsnumber-and-nsinteger NeXTStep named code elements simply didn't need to specify too many float values outside of time intervals. So they gave NSTimeInterval which is a floating point type but that is clearly intended for use with time intervals. And frankly it's..
How to display the current project version of my App to the user? http://stackoverflow.com/questions/1492351/how-to-display-the-current-project-version-of-my-app-to-the-user infoDictionary NSLog @ i Keys infoDictionary count infoDictionary allKeys componentsJoinedByString @ This snipplet gave me the following output 20 Keys NSBundleResolvedPath CFBundleVersion NSBundleInitialPath CFBundleIdentifier NSMainNibFile..
How to add a UIImage in MailComposer Sheet of MFMailComposeViewController http://stackoverflow.com/questions/1527351/how-to-add-a-uiimage-in-mailcomposer-sheet-of-mfmailcomposeviewcontroller ObjC one I found was called NSData Base64 by Matt Gallagher I took the out of the name after copying it in because it gave me problems . Copy the .h and .m files into your project and be sure to #import the .h file where you plan on using it...
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how rounded rect view with transparency done on iphone to make this code. Then I realized I'd answered the wrong question gave a rounded UILabel instead of UIImage so I used this code to change it http discussions.apple.com thread.jspa threadID 1683876..
http://stackoverflow.com/questions/2337408/addsubview-animation ON screen UIView commitAnimations The SDK will now figure this out for you and animate the view to the positions you gave it. This works for most properties of UIViews alpha scale bounds frames etc. There are also build in animations as flip..
Recommended Reading for iPhone Core Animation http://stackoverflow.com/questions/2907068/recommended-reading-for-iphone-core-animation iTunes U . My class notes with detailed coverage of Core Animation can be downloaded here in VoodooPad format . I also gave a presentation on Core Animation at the recent iPadDevCamp in Chicago for which the slides and sample code can be found..
Extracting pdf text in Objective C http://stackoverflow.com/questions/2960195/extracting-pdf-text-in-objective-c it to work and thought I would provide it here as up to this point I have used stackoverflow quite a bit but never gave back. You can get it here https github.com zachron pdfiphone It takes as input the path of the pdf file and returns a nsstring..
How Do I write a Timer in Objective-C? http://stackoverflow.com/questions/3519562/how-do-i-write-a-timer-in-objective-c Do I write a Timer in Objective C I am trying to make a stop watch with NSTimer. I gave the following code nst_Timer NSTimer scheduledTimerWithTimeInterval 0.001 target self selector @selector showTime userInfo..
How can you track motion using the iPhone's camera? http://stackoverflow.com/questions/3933716/how-can-you-track-motion-using-the-iphones-camera objects and tracking them iphone augmented reality motion motion detection share improve this question I just gave a talk at SecondConf where I demonstrated the use of the iPhone's camera to track a colored object using OpenGL ES 2.0 shaders...
iPhone Glossy Icons Using Core Graphics http://stackoverflow.com/questions/5541457/iphone-glossy-icons-using-core-graphics
How to distribute ios application wirelessly without managing UDIDs and recompilation http://stackoverflow.com/questions/5546581/how-to-distribute-ios-application-wirelessly-without-managing-udids-and-recompil I am seeing another studio doing a much smarter way right now and I wish to know how they did it With a link they gave to us we can install their demo application from a simple HTML over the air and a provisioning profile magically appears..
How to compare two NSDates: Which is more recent? http://stackoverflow.com/questions/5965044/how-to-compare-two-nsdates-which-is-more-recent NSLog @ ...iP is more up to date. Upload in progress... self DBupload @ NoteBook.txt NSLog @ Upload complete. This gave me the following random wrong output 2011 05 11 14 20 54.413 NotePage 6918 207 dB...lastModified 2011 05 11 13 18 25 0000..
Getting the visible rect of an UIScrollView's content http://stackoverflow.com/questions/868288/getting-the-visible-rect-of-an-uiscrollviews-content this question Answering my own question mostly thanks to Jim Dovey's answer which didn't quite do the trick but gave me the base for my answer CGRect visibleRect visibleRect.origin scrollView.contentOffset visibleRect.size scrollView.bounds.size..
UILabel - string as text and links http://stackoverflow.com/questions/8839464/uilabel-string-as-text-and-links This is the complete text for UILabel . I have to only one UILabel for displaying this text text is dynamic. I just gave an example. . On clicking these links I need to perform actions like navigating to some other different screen or make a..
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