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2014/10/15 ¤U¤È 10:13:42
iphone Programming Glossary: seemsHow to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems bad and.. did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems bad and while I could check to see for a response from some other websites if Google didn't respond..
How to develop or migrate apps for iPhone 5 screen resolution? http://stackoverflow.com/questions/12395200/how-to-develop-or-migrate-apps-for-iphone-5-screen-resolution or applicationFrame but then you need to consider status bar height if it's present as there seems to be no specific API for that. Example CGRect screenBounds UIScreen mainScreen bounds if screenBounds.size.height..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone compile errors. A later comment on that post includes this adapted code which works for me and seems a bit more straightforward. If you include their code for the NSData category you can write something..
Proper way to exit iPhone application? http://stackoverflow.com/questions/355168/proper-way-to-exit-iphone-application
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone what I learned while trying to get this working anyway. iOS 5 update When the result block fires seems to be a bit slower with iOS5 maybe single core devices so I couldnt rely on the image to be available..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints paging UIScrollView CATiledView brow leaves paging with nice transitions skim everything it seems PDF reader editor for OSX iphone ios ipad pdf calayer share improve this question I have build.. access the pdfDoc property because I release it and recreate it when receiving memoryWarnings. It seems that the CGPDFDocumentRef object do some internal caching that I did not find how to get rid of. share..
How do I size a UITextView to its content? http://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root a UI structured like in the Tweetie app which behaves as so the top level view controller seems to be a navigation controller whose root view is an Accounts table view. If you click on any account.. list and lets you drill down further the subsequent levels don't show the tab bar . So this seems like the implementation hierarchy is UINavigationController Accounts UITableViewController UITabBarController.. UITableViewController Detail view of a tweet user etc Replies UITableViewController ... This seems to work ^1 but appears to be unsupported according to the SDK documentation for pushViewController animated..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop Would someone please be kind enough to hold my hand Every code example I have found so far seems to smash the image be upside down look like crap draw out of bounds or otherwise just not work correctly...
How do I get a background location update every n minutes in my iOS application? http://stackoverflow.com/questions/6347503/how-do-i-get-a-background-location-update-every-n-minutes-in-my-ios-application This works in the background as expected based on the configured properties but it seems not possible to force it to update the location every n minutes NSTimer Does work when the app is running..
What is the best way to deal with the NSDateFormatter locale “feature”? http://stackoverflow.com/questions/6613110/what-is-the-best-way-to-deal-with-the-nsdateformatter-locale-feature is the best way to deal with the NSDateFormatter locale &ldquo feature&rdquo It seems that NSDateFormatter has a feature that bites you unexpectedly If you do a simple fixed format operation.. two lines the alloc init line and the added import. Added This is what I've come up with so far seems to work in all scenarios @implementation BNSDateFormatter id init static NSLocale en_US_POSIX nil NSDateFormatter..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now re installs the app. This requires a bit of effort since the most reliable per device identifier seems to be the MAC address. You could query the MAC and use that as UUID. Edit One needs to always query.. uniqueIdentifier but a UUID that is created when the app starts for the first time is what Apple seems to want you to use . Edit 3 So this major point doesn't get lost in the comment noise do not use the..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone anything great yet. Anybody dealt with this before Any recommendations I did find Core Plot but it seems to be in the early stages of development. Edit to add some details of requirements as they currently..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app anyone implemented the PayPal API through a native iPhone app It seems the only way to stay in app is to give them a UIWebView of the paypal mobile site and let them complete..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk check to see if I have an Internet connection on the iPhone using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems bad and while I could check to see for a response from some other websites.. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems bad and while I could check to see for a response from some other websites if Google didn't respond it does seem wasteful and an unnecessary overhead on my application...
How to develop or migrate apps for iPhone 5 screen resolution? http://stackoverflow.com/questions/12395200/how-to-develop-or-migrate-apps-for-iphone-5-screen-resolution looks like you have to check height of UIScreen mainScreen bounds or applicationFrame but then you need to consider status bar height if it's present as there seems to be no specific API for that. Example CGRect screenBounds UIScreen mainScreen bounds if screenBounds.size.height 568 code for 4 inch screen else code for 3.5..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone aside from the extra comma in each call to CCCrypt which caused compile errors. A later comment on that post includes this adapted code which works for me and seems a bit more straightforward. If you include their code for the NSData category you can write something like this Note The printf calls are only for demonstrating..
Proper way to exit iPhone application? http://stackoverflow.com/questions/355168/proper-way-to-exit-iphone-application
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone UIImage thumb node.view.largeImage if thumb blah blah Thats what I learned while trying to get this working anyway. iOS 5 update When the result block fires seems to be a bit slower with iOS5 maybe single core devices so I couldnt rely on the image to be available directly after calling findLargeImage . So I changed it to..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints ZoomingPDF zooming UIScrollView CATiledLayer vfr reader zooming paging UIScrollView CATiledView brow leaves paging with nice transitions skim everything it seems PDF reader editor for OSX iphone ios ipad pdf calayer share improve this question I have build such kind of application using approximatively the same approach..
How do I size a UITextView to its content? http://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root or sharing a navigation root view I'm trying to implement a UI structured like in the Tweetie app which behaves as so the top level view controller seems to be a navigation controller whose root view is an Accounts table view. If you click on any account it goes to the second level which has a tab bar across the.. has a tab bar across the bottom. Each tab item shows a different list and lets you drill down further the subsequent levels don't show the tab bar . So this seems like the implementation hierarchy is UINavigationController Accounts UITableViewController UITabBarController Tweets UITableViewController Detail view of a tweet.. Accounts UITableViewController UITabBarController Tweets UITableViewController Detail view of a tweet user etc Replies UITableViewController ... This seems to work ^1 but appears to be unsupported according to the SDK documentation for pushViewController animated emphasis added viewController The view controller that..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop proved to be. The attached image shows what I am trying to achieve. Would someone please be kind enough to hold my hand Every code example I have found so far seems to smash the image be upside down look like crap draw out of bounds or otherwise just not work correctly. Thank you SO much for your help. iphone ios image processing..
How do I get a background location update every n minutes in my iOS application? http://stackoverflow.com/questions/6347503/how-do-i-get-a-background-location-update-every-n-minutes-in-my-ios-application startUpdatingLocation startMonitoringSignificantLocationChanges This works in the background as expected based on the configured properties but it seems not possible to force it to update the location every n minutes NSTimer Does work when the app is running in the foreground but doesn't seem to be designed for..
What is the best way to deal with the NSDateFormatter locale “feature”? http://stackoverflow.com/questions/6613110/what-is-the-best-way-to-deal-with-the-nsdateformatter-locale-feature is the best way to deal with the NSDateFormatter locale &ldquo feature&rdquo It seems that NSDateFormatter has a feature that bites you unexpectedly If you do a simple fixed format operation such as NSDateFormatter fmt NSDateFormatter alloc init.. would set the locale in the init method. Requires changing two lines the alloc init line and the added import. Added This is what I've come up with so far seems to work in all scenarios @implementation BNSDateFormatter id init static NSLocale en_US_POSIX nil NSDateFormatter me super init if en_US_POSIX nil en_US_POSIX NSLocale..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now i. e. it should stay the same when the user uninstalls and re installs the app. This requires a bit of effort since the most reliable per device identifier seems to be the MAC address. You could query the MAC and use that as UUID. Edit One needs to always query the MAC of the same interface of course. I guess the best bet.. be able use it as a drop in replacement to the old UIDevice uniqueIdentifier but a UUID that is created when the app starts for the first time is what Apple seems to want you to use . Edit 3 So this major point doesn't get lost in the comment noise do not use the MAC as UUID create a hash using the MAC . That hash will always..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone for Cocoa on the Mac that can be adapted but haven't found anything great yet. Anybody dealt with this before Any recommendations I did find Core Plot but it seems to be in the early stages of development. Edit to add some details of requirements as they currently stand Bar Charts Horizontal bar charts Double stacked bar charts..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app anyone implemented the PayPal API through a native iPhone app It seems the only way to stay in app is to give them a UIWebView of the paypal mobile site and let them complete the transaction there otherwise the user would need to use..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk on the iPhone using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems bad and while I could check.. NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems bad and while I could check to see for a response from some other websites if Google didn't respond it does seem wasteful..
How to develop or migrate apps for iPhone 5 screen resolution? http://stackoverflow.com/questions/12395200/how-to-develop-or-migrate-apps-for-iphone-5-screen-resolution mainScreen bounds or applicationFrame but then you need to consider status bar height if it's present as there seems to be no specific API for that. Example CGRect screenBounds UIScreen mainScreen bounds if screenBounds.size.height 568 code..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone to CCCrypt which caused compile errors. A later comment on that post includes this adapted code which works for me and seems a bit more straightforward. If you include their code for the NSData category you can write something like this Note The..
Proper way to exit iPhone application? http://stackoverflow.com/questions/355168/proper-way-to-exit-iphone-application
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone thumb blah blah Thats what I learned while trying to get this working anyway. iOS 5 update When the result block fires seems to be a bit slower with iOS5 maybe single core devices so I couldnt rely on the image to be available directly after calling..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints vfr reader zooming paging UIScrollView CATiledView brow leaves paging with nice transitions skim everything it seems PDF reader editor for OSX iphone ios ipad pdf calayer share improve this question I have build such kind of application.. the part where I access the pdfDoc property because I release it and recreate it when receiving memoryWarnings. It seems that the CGPDFDocumentRef object do some internal caching that I did not find how to get rid of. share improve this answer..
How do I size a UITextView to its content? http://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root I'm trying to implement a UI structured like in the Tweetie app which behaves as so the top level view controller seems to be a navigation controller whose root view is an Accounts table view. If you click on any account it goes to the second.. tab item shows a different list and lets you drill down further the subsequent levels don't show the tab bar . So this seems like the implementation hierarchy is UINavigationController Accounts UITableViewController UITabBarController Tweets UITableViewController.. UITabBarController Tweets UITableViewController Detail view of a tweet user etc Replies UITableViewController ... This seems to work ^1 but appears to be unsupported according to the SDK documentation for pushViewController animated emphasis added..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop I am trying to achieve. Would someone please be kind enough to hold my hand Every code example I have found so far seems to smash the image be upside down look like crap draw out of bounds or otherwise just not work correctly. Thank you SO much..
How do I get a background location update every n minutes in my iOS application? http://stackoverflow.com/questions/6347503/how-do-i-get-a-background-location-update-every-n-minutes-in-my-ios-application This works in the background as expected based on the configured properties but it seems not possible to force it to update the location every n minutes NSTimer Does work when the app is running in the foreground..
What is the best way to deal with the NSDateFormatter locale “feature”? http://stackoverflow.com/questions/6613110/what-is-the-best-way-to-deal-with-the-nsdateformatter-locale-feature is the best way to deal with the NSDateFormatter locale &ldquo feature&rdquo It seems that NSDateFormatter has a feature that bites you unexpectedly If you do a simple fixed format operation such as NSDateFormatter.. Requires changing two lines the alloc init line and the added import. Added This is what I've come up with so far seems to work in all scenarios @implementation BNSDateFormatter id init static NSLocale en_US_POSIX nil NSDateFormatter me super..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now user uninstalls and re installs the app. This requires a bit of effort since the most reliable per device identifier seems to be the MAC address. You could query the MAC and use that as UUID. Edit One needs to always query the MAC of the same.. to the old UIDevice uniqueIdentifier but a UUID that is created when the app starts for the first time is what Apple seems to want you to use . Edit 3 So this major point doesn't get lost in the comment noise do not use the MAC as UUID create..
Is there a good charting library for iPhone? [closed] http://stackoverflow.com/questions/769749/is-there-a-good-charting-library-for-iphone but haven't found anything great yet. Anybody dealt with this before Any recommendations I did find Core Plot but it seems to be in the early stages of development. Edit to add some details of requirements as they currently stand Bar Charts Horizontal..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app anyone implemented the PayPal API through a native iPhone app It seems the only way to stay in app is to give them a UIWebView of the paypal mobile site and let them complete the transaction..
http://stackoverflow.com/questions/1209582/is-it-possible-to-hide-the-tabbar-when-a-button-is-pressed-to-allow-a-full-scree tabBar once the view is already loaded. yourTabViewController.hidesBottomBarWhenPushed YES This is the code I found. Seems to only work when the view is loaded though so it can't be used to hide the tabbar once it has already appeared. I'm still..
Does an IBOutlet needs to be a property & synthesized? http://stackoverflow.com/questions/1221516/does-an-iboutlet-needs-to-be-a-property-synthesized @implementation FooController @end Are there any downsides of defining IBOutlets as in Example B Like memory leaks Seems to work fine and I prefer to not expose the IBOutlets as public properties as they are not used as such they are only used..
http://stackoverflow.com/questions/12406159/code-sign-error-application-identifier-com-reapptive-floors2go-which-doesnt tried cleaning all and rebuild but to no avail. Any ideas iphone xcode provisioning share improve this question Seems to be a bug in Xcode GM Seed I had to kill Xcode and reopen it every time I change a profile. share improve this answer..
iOS - Linker error after upgrading to Xcode 4.5, possibly Core Plot related http://stackoverflow.com/questions/12411077/ios-linker-error-after-upgrading-to-xcode-4-5-possibly-core-plot-related
http://stackoverflow.com/questions/1448207/how-to-load-an-xib . Upon the user clicking a button I'd like to load the AboutViewController screen which is defined in another XIB. Seems simple but I can't seem to find my google fu today. How do I pull this off iphone sdk xib share improve this question..
iphone: Calculating battery life http://stackoverflow.com/questions/1469549/iphone-calculating-battery-life the current state e.g. unplugged charging or full. The second will get triggered whenever a 5 increment is reached. Seems to me that if all you're given is change notifications at 5 changes up or down accuracy is not something you can calculate..
AVAudioPlayer with external URL to *.m4p http://stackoverflow.com/questions/1605846/avaudioplayer-with-external-url-to-m4p soundData NSData dataWithContentsOfURL URL AVAudioPlayer player AVAudioPlayer alloc initWithData soundData error error Seems that AVAudioPlayer really wants a file. So I put the data into a file first NSURL url NSURL URLWithString @ http a825.phobos.apple.com..
How can I make my AES encryption identical between Java and Objective-C (iPhone)? http://stackoverflow.com/questions/2280375/how-can-i-make-my-aes-encryption-identical-between-java-and-objective-c-iphone applies the original key to encrypt but the OSX version seems to use something else. EDIT From here I saw an example. Seems like you need to pass the kCCOptionECBMode to CCCrypt ccStatus CCCrypt encryptOrDecrypt kCCAlgorithm3DES kCCOptionECBMode..
Reading binary image data from a web service into UIImage http://stackoverflow.com/questions/2360986/reading-binary-image-data-from-a-web-service-into-uiimage alloc initWithData string dataUsingEncoding NSUTF8StringEncoding But img variable is still nil after this line. Seems like the data from XML string is not compatible with conversion. What am I doing wrong here I'm capable of reading other..
Setting direction for UISwipeGestureRecognizer http://stackoverflow.com/questions/3319209/setting-direction-for-uiswipegesturerecognizer UISwipeGestureRecognizer recognizer NSLog @ Swipe received. iphone swipe share improve this question Seems like there is a bug. You can specify the allowed direction s as you did. But when you try to access the actual direction..
UISearchDisplayContoller ??can't prevent table reload on typing in search bar http://stackoverflow.com/questions/3903718/uisearchdisplaycontoller-cant-prevent-table-reload-on-typing-in-search-bar from a web service. I've got the basic bits in place but have run into a really strange issue that I can't figure out. Seems like to rig up the search display controller for async you really just need to do two things return NO for searchDisplayController..
http://stackoverflow.com/questions/4213529/saving-uiview-contents-in-ios-4-with-real-size-of-the-images-inside-i-e-scale all images inside with scale 1 and that should do but I was wondering if there is any more elegant way to do that Seems like a waist of memory and processor time to reload everything again since it's already done ... p.s. if anyone has an answer..
Iphone facebook connect example calls safari. I don't want to use safari http://stackoverflow.com/questions/4501774/iphone-facebook-connect-example-calls-safari-i-dont-want-to-use-safari
Does SecTrustEvaluate() look for root certificates in the application keychain? http://stackoverflow.com/questions/4669255/does-sectrustevaluate-look-for-root-certificates-in-the-application-keychain will also look in the application ™s keychain. iphone security ios keychain trust share improve this question Seems like it's been a while since you posted so I'm not sure if you still need the answer. If your use case is I'm getting hit..
remove non ASCII characters from NSString in objective-c http://stackoverflow.com/questions/6361586/remove-non-ascii-characters-from-nsstring-in-objective-c non ASCII characters from NSString in objective c I have an app that syncs data from a remote DB that users populate. Seems people copy and paste crap from a ton of different OS's and programs which can cause different hidden non ASCII values to..
http://stackoverflow.com/questions/6691147/h-264-over-rtp-rtsp-iphone share improve this question Sure it is possible in fact others have done it already see e.g. IPVision from TTrix . Seems that the Live555 libraries can be compiled for iOS. See this SO question How to configure live555 framework for iphone app..
How to protect app IPA from hacks if reverse engineering is possible http://stackoverflow.com/questions/6939222/how-to-protect-app-ipa-from-hacks-if-reverse-engineering-is-possible fix these security vulnerabilities or if not possible how to convince the client. Edit Recently came across this page. Seems like EnsureIT from Arxan can prevent app IPAs from reverse engineering. Anyone experienced with this iphone ios ipad ios4..
Is there a way to figure out, how many degrees an view is rotated currently during an animation? http://stackoverflow.com/questions/877198/is-there-a-way-to-figure-out-how-many-degrees-an-view-is-rotated-currently-duri
http://stackoverflow.com/questions/964207/sqlite-exception-sqlite-busy c exception sqlite3 share improve this question If I get it right busy means that you cannot obtain a lock. Seems that some another process or thread etc has a lock on a database. File Locking And Concurrency In SQLite Version 3 share..
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