¡@
2014/10/15 ¤U¤È 10:12:23
iphone Programming Glossary: othersDelete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data and prone to error. The use for doing it that way is if you want to delete some entities and not others. However you still need to make sure you retain referential integrity or you won't be able to persist..
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 6 How do I restrict some views to portrait and allow others to rotate I have an iPhone app that uses a UINavigationController to present a drill down interface..
http://stackoverflow.com/questions/1328638/placeholder-in-uitextview from a xib file text wrapping and to maintain background color. Hopefully it will save others the trouble. UIPlaceHolderTextView.h #import Foundation Foundation.h @interface UIPlaceHolderTextView..
UIScrollView. Any thoughts on implementing “infinite” scroll/zoom? http://stackoverflow.com/questions/1493950/uiscrollview-any-thoughts-on-implementing-infinite-scroll-zoom can blow any lazy loading scheme all to hell since it can cause infinte data explosion. Have others out there pondered this idea Yah I know we are essentially talking about re creating Google Maps here...
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 but I thought was too useful to waste. Thus I have also made this a community wiki so that others may flesh out question and answer s . If you find the answer useful please vote up the question being.. 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..
http://stackoverflow.com/questions/230984/compression-api-on-the-iphone compression share improve this question zlib and bzip2 are available. And you can always add others as long as they'll generally compile under OS X. bzip2 is a better choice for smallest file sizes but..
JSON and Core Data on the iPhone http://stackoverflow.com/questions/2362323/json-and-core-data-on-the-iphone improve this question First pick a JSON library to use I personally like TouchJSON but several others out there are quite nice as well. The complicated part although not very hard is to convert your managed..
How do I reset the scale/zoom of a web app on an orientation change on the iPhone? http://stackoverflow.com/questions/2557801/how-do-i-reset-the-scale-zoom-of-a-web-app-on-an-orientation-change-on-the-iphon of a web app on an orientation change on the iPhone I'm having the same problem that a couple of others have had with getting the correct behavior in a web app on an orientation change and there doesn't seem..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application is the same approach we used for handling custom URL schemes. You can separate the file URLs from others by using code like the following if url isFileURL Handle file being passed in else Handle custom URL..
Does UIGestureRecognizer work on a UIWebView? http://stackoverflow.com/questions/2909807/does-uigesturerecognizer-work-on-a-uiwebview share improve this question From what I have seen UIWebView does not play well with others. For gesture recognizers you could try returning YES from BOOL gestureRecognizer UIGestureRecognizer..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions have been presented some of them including completely custom animation via CoreGraphics while others build on the observation that the first view controller loaded from the main nib is always displayed.. work under all these circumstances. It is my intend with this CW post to provide sort of a FAQ for others having issues with UIViewControllers in Landscape mode. Please provide feedback and help improve the..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received anything you get from an allocation function usually the static alloc method but there are a few others or a copy method you own the memory too and must release it when you are done. But if you get something..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel this question Update for iOS6 In iOS6 now UILabel UIButton UITextView UITextField and maybe others now support attributed strings which means we don't need to create CATextLayer s as our recipient for..
Want to display a 3D model on the iPhone: how to get started? http://stackoverflow.com/questions/413919/want-to-display-a-3d-model-on-the-iphone-how-to-get-started 3D programs I'm most comfortable with 3D Studio Max which I once took a course on but I've used others General knowledge of procedural programming from years ago QuickBasic I'm old Beginner's knowledge of..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events app will be terminated after a while. But because you registered your app as VoIP or one of the others the system restarts the app in background which will restart your background process With this PingPong.. immediately. dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 ^ inform others to stop tasks if you like NSNotificationCenter defaultCenter postNotificationName @ MyApplicationEntersBackground..
Return to app behavior after phone call different in native code than UIWebView http://stackoverflow.com/questions/5317783/return-to-app-behavior-after-phone-call-different-in-native-code-than-uiwebview want to return to my application I have to do so manually. As far as I can tell from reading what others have said there is no way to change this behavior. Here is my question Is it true that it's impossible..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now . The MAC is always present even if the interface has no IP is down. Edit 2 As was pointed out by others the preferred solution since iOS 6 is UIDevice identifierForVendor . In most cases you should be able..
Delete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data way for iterating through each entity is both slower and prone to error. The use for doing it that way is if you want to delete some entities and not others. However you still need to make sure you retain referential integrity or you won't be able to persist your changes. Just removing the store and recreating it is..
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 6 How do I restrict some views to portrait and allow others to rotate I have an iPhone app that uses a UINavigationController to present a drill down interface First one view then another up to four levels deep. I want..
http://stackoverflow.com/questions/1328638/placeholder-in-uitextview a few minor modifications to bcd's solution to allow for initialization from a xib file text wrapping and to maintain background color. Hopefully it will save others the trouble. UIPlaceHolderTextView.h #import Foundation Foundation.h @interface UIPlaceHolderTextView UITextView @property nonatomic retain NSString placeholder..
UIScrollView. Any thoughts on implementing “infinite” scroll/zoom? http://stackoverflow.com/questions/1493950/uiscrollview-any-thoughts-on-implementing-infinite-scroll-zoom 1 scrollView.contentSize is fixed at creation time. 2 zooming can blow any lazy loading scheme all to hell since it can cause infinte data explosion. Have others out there pondered this idea Yah I know we are essentially talking about re creating Google Maps here. Any insights would be much appreciated. Cheers Doug iphone..
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 out for another post when I found it did not apply to the original but I thought was too useful to waste. Thus I have also made this a community 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.. 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 on the Simulator but on the iPhone you..
http://stackoverflow.com/questions/230984/compression-api-on-the-iphone not concerned with compression going the other way. iphone compression share improve this question zlib and bzip2 are available. And you can always add others as long as they'll generally compile under OS X. bzip2 is a better choice for smallest file sizes but requires much more CPU power to compress and decompress. Also..
JSON and Core Data on the iPhone http://stackoverflow.com/questions/2362323/json-and-core-data-on-the-iphone received. iphone objective c json core data share improve this question First pick a JSON library to use I personally like TouchJSON but several others out there are quite nice as well. The complicated part although not very hard is to convert your managed objects into suitable structures for the conversion. I..
How do I reset the scale/zoom of a web app on an orientation change on the iPhone? http://stackoverflow.com/questions/2557801/how-do-i-reset-the-scale-zoom-of-a-web-app-on-an-orientation-change-on-the-iphon do I reset the scale zoom of a web app on an orientation change on the iPhone I'm having the same problem that a couple of others have had with getting the correct behavior in a web app on an orientation change and there doesn't seem to be an obvious solution I've seen this question asked..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application
Does UIGestureRecognizer work on a UIWebView? http://stackoverflow.com/questions/2909807/does-uigesturerecognizer-work-on-a-uiwebview of the webview. iphone objective c cocoa ipad uigesturerecognizer share improve this question From what I have seen UIWebView does not play well with others. For gesture recognizers you could try returning YES from BOOL gestureRecognizer UIGestureRecognizer gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions are not correctly rendered either. A set of different solutions have been presented some of them including completely custom animation via CoreGraphics while others build on the observation that the first view controller loaded from the main nib is always displayed correct. I have spent a significant amount of time investigating.. a solution that is not only a partial solution but should work under all these circumstances. It is my intend with this CW post to provide sort of a FAQ for others having issues with UIViewControllers in Landscape mode. Please provide feedback and help improve the quality of this Post by incorporating any related observations...
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received management rules unless you make a big point of it. Remember anything you get from an allocation function usually the static alloc method but there are a few others or a copy method you own the memory too and must release it when you are done. But if you get something back from just about anything else including factory methods..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel Dom iphone objective c ipad nsattributedstring share improve this question Update for iOS6 In iOS6 now UILabel UIButton UITextView UITextField and maybe others now support attributed strings which means we don't need to create CATextLayer s as our recipient for attributed strings. Furthermore to make the attributed string..
Want to display a 3D model on the iPhone: how to get started? http://stackoverflow.com/questions/413919/want-to-display-a-3d-model-on-the-iphone-how-to-get-started SDK Blender My knowledge base I can make 3D models in various 3D programs I'm most comfortable with 3D Studio Max which I once took a course on but I've used others General knowledge of procedural programming from years ago QuickBasic I'm old Beginner's knowledge of object oriented programming from going through simple Java..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events here and your app runs longer But one thing is for sure your app will be terminated after a while. But because you registered your app as VoIP or one of the others the system restarts the app in background which will restart your background process With this PingPong I can do a lot of backgrounding. but remember be very spare.. expirationHandler Start the long running task and return immediately. dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 ^ inform others to stop tasks if you like NSNotificationCenter defaultCenter postNotificationName @ MyApplicationEntersBackground object self do your background work here This..
Return to app behavior after phone call different in native code than UIWebView http://stackoverflow.com/questions/5317783/return-to-app-behavior-after-phone-call-different-in-native-code-than-uiwebview stays in the iphone's regular phone application and if I want to return to my application I have to do so manually. As far as I can tell from reading what others have said there is no way to change this behavior. Here is my question Is it true that it's impossible to return to an application after making a phone call from..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now same interface of course. I guess the best bet is with en0 . The MAC is always present even if the interface has no IP is down. Edit 2 As was pointed out by others the preferred solution since iOS 6 is UIDevice identifierForVendor . In most cases you should be able use it as a drop in replacement to the old UIDevice uniqueIdentifier..
Delete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data entity is both slower and prone to error. The use for doing it that way is if you want to delete some entities and not others. However you still need to make sure you retain referential integrity or you won't be able to persist your changes. Just..
http://stackoverflow.com/questions/1328638/placeholder-in-uitextview to allow for initialization from a xib file text wrapping and to maintain background color. Hopefully it will save others the trouble. UIPlaceHolderTextView.h #import Foundation Foundation.h @interface UIPlaceHolderTextView UITextView @property..
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 not apply to the original but I thought was too useful to waste. Thus I have also made this a community 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.. 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..
http://stackoverflow.com/questions/230984/compression-api-on-the-iphone other way. iphone compression share improve this question zlib and bzip2 are available. And you can always add others as long as they'll generally compile under OS X. bzip2 is a better choice for smallest file sizes but requires much more..
JSON and Core Data on the iPhone http://stackoverflow.com/questions/2362323/json-and-core-data-on-the-iphone core data share improve this question First pick a JSON library to use I personally like TouchJSON but several others out there are quite nice as well. The complicated part although not very hard is to convert your managed objects into suitable..
How do I reset the scale/zoom of a web app on an orientation change on the iPhone? http://stackoverflow.com/questions/2557801/how-do-i-reset-the-scale-zoom-of-a-web-app-on-an-orientation-change-on-the-iphon reset the scale zoom of a web app on an orientation change on the iPhone I'm having the same problem that a couple of others have had with getting the correct behavior in a web app on an orientation change and there doesn't seem to be an obvious..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application Note that this is the same approach we used for handling custom URL schemes. You can separate the file URLs from others by using code like the following if url isFileURL Handle file being passed in else Handle custom URL scheme share improve..
Does UIGestureRecognizer work on a UIWebView? http://stackoverflow.com/questions/2909807/does-uigesturerecognizer-work-on-a-uiwebview cocoa ipad uigesturerecognizer share improve this question From what I have seen UIWebView does not play well with others. For gesture recognizers you could try returning YES from BOOL gestureRecognizer UIGestureRecognizer gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions of different solutions have been presented some of them including completely custom animation via CoreGraphics while others build on the observation that the first view controller loaded from the main nib is always displayed correct. I have spent.. solution but should work under all these circumstances. It is my intend with this CW post to provide sort of a FAQ for others having issues with UIViewControllers in Landscape mode. Please provide feedback and help improve the quality of this Post..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received point of it. Remember anything you get from an allocation function usually the static alloc method but there are a few others or a copy method you own the memory too and must release it when you are done. But if you get something back from just about..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel share improve this question Update for iOS6 In iOS6 now UILabel UIButton UITextView UITextField and maybe others now support attributed strings which means we don't need to create CATextLayer s as our recipient for attributed strings...
Want to display a 3D model on the iPhone: how to get started? http://stackoverflow.com/questions/413919/want-to-display-a-3d-model-on-the-iphone-how-to-get-started 3D models in various 3D programs I'm most comfortable with 3D Studio Max which I once took a course on but I've used others General knowledge of procedural programming from years ago QuickBasic I'm old Beginner's knowledge of object oriented programming..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events thing is for sure your app will be terminated after a while. But because you registered your app as VoIP or one of the others the system restarts the app in background which will restart your background process With this PingPong I can do a lot of.. task and return immediately. dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 ^ inform others to stop tasks if you like NSNotificationCenter defaultCenter postNotificationName @ MyApplicationEntersBackground object..
Return to app behavior after phone call different in native code than UIWebView http://stackoverflow.com/questions/5317783/return-to-app-behavior-after-phone-call-different-in-native-code-than-uiwebview application and if I want to return to my application I have to do so manually. As far as I can tell from reading what others have said there is no way to change this behavior. Here is my question Is it true that it's impossible to return to an application..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now best bet is with en0 . The MAC is always present even if the interface has no IP is down. Edit 2 As was pointed out by others the preferred solution since iOS 6 is UIDevice identifierForVendor . In most cases you should be able use it as a drop in..
Need content in UIWebView to display quickly http://stackoverflow.com/questions/1246420/need-content-in-uiwebview-to-display-quickly this one I'm thinking perhaps the on device caching is somehow more limited than both its Mac and Safari counterparts. Others on the Apple forums report experiences with rude engineers when asking about UIWebView and NSURLCache where in bug reports..
Attempting to deploy my app on my jailbroken iphone, but the app closes immediately! http://stackoverflow.com/questions/1285980/attempting-to-deploy-my-app-on-my-jailbroken-iphone-but-the-app-closes-immediat
How to download In-App hosted content? http://stackoverflow.com/questions/12994550/how-to-download-in-app-hosted-content for SmallChess http www.smallchess.com . #import StoreKit StoreKit.h #import MBProgressHUD MBProgressHUD.h #import Others Utility.h #import Store OnlineStore.h NSString const ProductPurchasedNotification @ ProductPurchasedNotification @implementation..
Another iPhone - CGBitmapContextCreateImage Leak http://stackoverflow.com/questions/1434714/another-iphone-cgbitmapcontextcreateimage-leak the _imageView.image and the _imageView are both 1 before I release the _imageView . This really doesn't make sense. Others seem to have this issue as well I'm the last one to suspect the SDK but could there be an iPhone SDK bug here iphone uiimage..
Force UIImagePickerController to take photo in portrait orientation/dimensions iOS http://stackoverflow.com/questions/14484816/force-uiimagepickercontroller-to-take-photo-in-portrait-orientation-dimensions-i is stored in a dictionary style structure within which can be a number of sub dictionaries one of which is EXIF. Others include TIFF IPTC PNG for example. There is also a general set of tags at the top level dictionary. The orientation key..
A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7 http://stackoverflow.com/questions/19943183/a-complete-solution-to-locally-validate-an-in-app-receipts-and-bundle-receipts-o appStoreReceiptURL and is actually a PCKS7 container. I suck at cryptography so I used OpenSSL to open this container. Others apparently have done it purely with system frameworks . Adding OpenSSL to your project is not trivial. The RMStore wiki..
What's the default size for the UIImage in a UITableViewCell? http://stackoverflow.com/questions/2122167/whats-the-default-size-for-the-uiimage-in-a-uitableviewcell myself. But none of the docs give a default size for this image using the standard out of the box views I'm surprised. Others on SO indicate that 44 is the default height of a row http stackoverflow.com questions 594852 what is the default height..
UITableview: How to Disable Selection for Some Rows but Not Others http://stackoverflow.com/questions/2267993/uitableview-how-to-disable-selection-for-some-rows-but-not-others How to Disable Selection for Some Rows but Not Others I am displaying in a group tableview contents parsed from XML. I want to disable the click event on it I should not be..
How to keep an iPhone app running on background fully operational http://stackoverflow.com/questions/3762200/how-to-keep-an-iphone-app-running-on-background-fully-operational a Long Running Task in the Background section of the iOS Application Programming Guide for how to go about this. Others have piggybacked on playing audio in the background as a means of staying alive as a background process but Apple will only..
Dynamically changing font size - UILabel http://stackoverflow.com/questions/4865458/dynamically-changing-font-size-uilabel Throughout the life of my iOS application factLabel gets a bunch of different values. Some with multiple sentences. Others with just 5 or 6 words. How can I set up the UILabel so that the font size changes so that the text always fits in the bounds..
UIModalTransitionStylePartialCurl with UITabBarController http://stackoverflow.com/questions/6873903/uimodaltransitionstylepartialcurl-with-uitabbarcontroller Many solutions give an acceptable solution if it is unimportant whether e.g. a lower toolbar curls up as well. Others have provided a solution using UIView animations CoreAnimation rather than UIModalTransitionStylePartialCurl as a modal..
What's the difference between GLKView and EAGLView? http://stackoverflow.com/questions/8412302/whats-the-difference-between-glkview-and-eaglview In Apple's OpenGL ES templates and sample code they've created classes with this name that host OpenGL ES content. Others have copied and pasted these classes in the tutorials they've written about the subject. Generally the one element all of..
Designing in landscape with Storyboards http://stackoverflow.com/questions/8599195/designing-in-landscape-with-storyboards in landscape with Storyboards Is it possible to design interfaces in landscape with Interface Builder Others with the same question apparently were able to do so with an arrow at the top right of any selected view but I see no such..
|