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2014/10/15 ¤U¤È 10:07:22
iphone Programming Glossary: doesn'tHow 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 observer never gets unregistered so you should account for that as well. Note The domain you use doesn't matter. It's just testing for a gateway to any domain. Important Note The Reachability class is one..
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps? http://stackoverflow.com/questions/1108693/is-it-possible-to-register-a-httpdomain-based-url-scheme-for-iphone-apps-like and is set to true set window.location to your uri or do the redirect server side If the cookie doesn't exist open a Did you know Your Site Name has an iPhone application modal with a Yep I've already got..
How to make a UITextField move up when keyboard is present http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present scrollView.frame.size.width scrollView.frame.size.height 215 50 resize However this doesn't automatically move up or center the lower text fields in the visible area which is what I would really..
http://stackoverflow.com/questions/1388467/reading-epub-format using the zip library linked above 4 parse the XML file at META INF container.xml if this file doesn't exist the EPUB is invalid using TBXML linked above 5 In this XML find the first rootfile with media..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone and 10.5 have usr include CommonCrypto although 10.5 has a man page for CCCryptor.3cc and 10.4 doesn't so YMMV. EDIT See this follow up question on using Base64 encoding for representing encrypted data bytes..
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 launch other appropriate apps when it encounters an unknown file type. This means the association doesn't work out of the box for any app like the URL protocol registering did. This leads me to the question..
How can I send mail from an iPhone application http://stackoverflow.com/questions/310946/how-can-i-send-mail-from-an-iphone-application application I want to send an email from my iPhone application. I have heard that the iOS SDK doesn't have an email API. I don't want to use the following code because it will exit my application NSString..
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 Apple has now disabled that too. References This is a great idea it's an excellent approach but it doesn't work http www.drobnik.com touch 2010 04 universal static libraries There's some bugs in his script that..
Can I embed a custom font in an iPhone application? http://stackoverflow.com/questions/360751/can-i-embed-a-custom-font-in-an-iphone-application that solved the question as asked the solution that involves coding your own UILabel subclass doesn't support word wrap which is an essential feature for me though I guess I could extend it to do so. iphone..
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 and Keywords Getting Raw Text and here and Here and here positioning focused Searching and here doesn't work with all PDFs some just show weird characters I guess it's an encoding issue but I'm not sure Credit..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c before calling a particular method on it. Apple recommends this method because it is more precise doesn't mess with NSObject and can provide better tool support. Speed Optimizations Instead of checking whether..
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 the location every n minutes NSTimer Does work when the app is running in the foreground but doesn't seem to be designed for background tasks Local notifications Local notifications can be scheduled every.. location without the user having to launch the app via the notification . This approach also doesn't seem to be a clean approach as this is not what notifications should be used for. UIApplication beginBackgroundTaskWithExpirationHandler..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now 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..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown is able to record all of the information about the selector and the object during compilation. It doesn't need to make any assumptions about anything. I checked this a year a so ago by looking at the source.. share if they have had an experience where silencing this warning was necessary and the above doesn't handle things properly . More It's possible to build up an NSMethodInvocation to handle this as well.. thinks is fine. This is very rare but could happen. Usually you'll just get a warning that it doesn't know which of two method signatures to choose from. 3 See the ARC reference on retained return values..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring are shown just for lo0 i think its main interface . yes. Then device is connected via WiFi and doesn't use internet if_iobytes values still come because this method provides network bytes exchanges and not..
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 viewWillDisappear where you receive a memory warning and the observer never gets unregistered so you should account for that as well. Note The domain you use doesn't matter. It's just testing for a gateway to any domain. Important Note The Reachability class is one of the most used classes in projects so you might run into naming..
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps? http://stackoverflow.com/questions/1108693/is-it-possible-to-register-a-httpdomain-based-url-scheme-for-iphone-apps-like Touch Check for an appInstalled cookie If the cookie exists and is set to true set window.location to your uri or do the redirect server side If the cookie doesn't exist open a Did you know Your Site Name has an iPhone application modal with a Yep I've already got it Nope but I'd love to try it and Leave me alone button. The..
How to make a UITextField move up when keyboard is present http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present CGRectMake scrollView.frame.origin.x scrollView.frame.origin.y scrollView.frame.size.width scrollView.frame.size.height 215 50 resize However this doesn't automatically move up or center the lower text fields in the visible area which is what I would really like. iphone objective c ios share improve this question..
http://stackoverflow.com/questions/1388467/reading-epub-format 3 unzip it to a subdirectory in your app's documents folder using the zip library linked above 4 parse the XML file at META INF container.xml if this file doesn't exist the EPUB is invalid using TBXML linked above 5 In this XML find the first rootfile with media type application oebps package xml . This is the OPF file for..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone CommonCrypto is part of the Core OS on the iPhone. Both 10.4 and 10.5 have usr include CommonCrypto although 10.5 has a man page for CCCryptor.3cc and 10.4 doesn't so YMMV. EDIT See this follow up question on using Base64 encoding for representing encrypted data bytes as a string if desired using safe lossless conversions...
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 of talk in the documentation about how to set up your app to launch other appropriate apps when it encounters an unknown file type. This means the association doesn't work out of the box for any app like the URL protocol registering did. This leads me to the question have system apps like Safari or Mail implemented this system..
How can I send mail from an iPhone application http://stackoverflow.com/questions/310946/how-can-i-send-mail-from-an-iphone-application can I send mail from an iPhone application I want to send an email from my iPhone application. I have heard that the iOS SDK doesn't have an email API. I don't want to use the following code because it will exit my application NSString url NSString stringWithString @ mailto foo@example.com cc..
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 we made pairs of static libs one for sim one for device. Apple has now disabled that too. References This is a great idea it's an excellent approach but it doesn't work http www.drobnik.com touch 2010 04 universal static libraries There's some bugs in his script that means it only works on his machine he should be using BUILT_PRODUCTS_DIR..
Can I embed a custom font in an iPhone application? http://stackoverflow.com/questions/360751/can-i-embed-a-custom-font-in-an-iphone-application number of votes. Interesting. No one actually provided an answer that solved the question as asked the solution that involves coding your own UILabel subclass doesn't support word wrap which is an essential feature for me though I guess I could extend it to do so. iphone ios cocoa touch fonts share improve this question ..
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 from the Dest array Getting a table of contents Document title and Keywords Getting Raw Text and here and Here and here positioning focused Searching and here doesn't work with all PDFs some just show weird characters I guess it's an encoding issue but I'm not sure Credit BrainFeeder CALayer and Off Screen Rendering render the..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c methods you still need to check with respondsToSelector before calling a particular method on it. Apple recommends this method because it is more precise doesn't mess with NSObject and can provide better tool support. Speed Optimizations Instead of checking whether a delegate responds to a selector every time we want to..
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 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 background tasks Local notifications Local notifications can be scheduled every n minutes but it's not possible to execute some code to.. but it's not possible to execute some code to get the current location without the user having to launch the app via the notification . This approach also doesn't seem to be a clean approach as this is not what notifications should be used for. UIApplication beginBackgroundTaskWithExpirationHandler As far as I understand..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now 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 create the same result every time even across reinstalls..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown The reason for this is because the compiler actually is able to record all of the information about the selector and the object during compilation. It doesn't need to make any assumptions about anything. I checked this a year a so ago by looking at the source but don't have a reference right now. Suppression In trying.. and good code design I'm coming up blank. Someone please share if they have had an experience where silencing this warning was necessary and the above doesn't handle things properly . More It's possible to build up an NSMethodInvocation to handle this as well but doing so requires a lot more typing and is also slower.. headers. You could end up with crashes in code that the compiler thinks is fine. This is very rare but could happen. Usually you'll just get a warning that it doesn't know which of two method signatures to choose from. 3 See the ARC reference on retained return values and unretained return values for more details. share improve..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring reboot. i don't know why but ifi_opackets and ifi_ipackets are shown just for lo0 i think its main interface . yes. Then device is connected via WiFi and doesn't use internet if_iobytes values still come because this method provides network bytes exchanges and not just internet . NSArray getDataCounters BOOL success struct..
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 warning and the observer never gets unregistered so you should account for that as well. Note The domain you use doesn't matter. It's just testing for a gateway to any domain. Important Note The Reachability class is one of the most used classes..
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps? http://stackoverflow.com/questions/1108693/is-it-possible-to-register-a-httpdomain-based-url-scheme-for-iphone-apps-like If the cookie exists and is set to true set window.location to your uri or do the redirect server side If the cookie doesn't exist open a Did you know Your Site Name has an iPhone application modal with a Yep I've already got it Nope but I'd love..
How to make a UITextField move up when keyboard is present http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present scrollView.frame.origin.y scrollView.frame.size.width scrollView.frame.size.height 215 50 resize However this doesn't automatically move up or center the lower text fields in the visible area which is what I would really like. iphone objective..
http://stackoverflow.com/questions/1388467/reading-epub-format app's documents folder using the zip library linked above 4 parse the XML file at META INF container.xml if this file doesn't exist the EPUB is invalid using TBXML linked above 5 In this XML find the first rootfile with media type application oebps..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone the iPhone. Both 10.4 and 10.5 have usr include CommonCrypto although 10.5 has a man page for CCCryptor.3cc and 10.4 doesn't so YMMV. EDIT See this follow up question on using Base64 encoding for representing encrypted data bytes as a string if..
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 set up your app to launch other appropriate apps when it encounters an unknown file type. This means the association doesn't work out of the box for any app like the URL protocol registering did. This leads me to the question have system apps like..
How can I send mail from an iPhone application http://stackoverflow.com/questions/310946/how-can-i-send-mail-from-an-iphone-application mail from an iPhone application I want to send an email from my iPhone application. I have heard that the iOS SDK doesn't have an email API. I don't want to use the following code because it will exit my application NSString url NSString stringWithString..
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 sim one for device. Apple has now disabled that too. References This is a great idea it's an excellent approach but it doesn't work http www.drobnik.com touch 2010 04 universal static libraries There's some bugs in his script that means it only works..
Can I embed a custom font in an iPhone application? http://stackoverflow.com/questions/360751/can-i-embed-a-custom-font-in-an-iphone-application provided an answer that solved the question as asked the solution that involves coding your own UILabel subclass doesn't support word wrap which is an essential feature for me though I guess I could extend it to do so. iphone ios cocoa touch..
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 Document title and Keywords Getting Raw Text and here and Here and here positioning focused Searching and here doesn't work with all PDFs some just show weird characters I guess it's an encoding issue but I'm not sure Credit BrainFeeder CALayer..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c respondsToSelector before calling a particular method on it. Apple recommends this method because it is more precise doesn't mess with NSObject and can provide better tool support. Speed Optimizations Instead of checking whether a delegate responds..
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 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 background tasks Local notifications Local notifications can be scheduled every n minutes but it's.. code to get the current location without the user having to launch the app via the notification . This approach also doesn't seem to be a clean approach as this is not what notifications should be used for. UIApplication beginBackgroundTaskWithExpirationHandler..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now 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 create the..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown compiler actually is able to record all of the information about the selector and the object during compilation. It doesn't need to make any assumptions about anything. I checked this a year a so ago by looking at the source but don't have a reference.. up blank. Someone please share if they have had an experience where silencing this warning was necessary and the above doesn't handle things properly . More It's possible to build up an NSMethodInvocation to handle this as well but doing so requires.. code that the compiler thinks is fine. This is very rare but could happen. Usually you'll just get a warning that it doesn't know which of two method signatures to choose from. 3 See the ARC reference on retained return values and unretained return..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring and ifi_ipackets are shown just for lo0 i think its main interface . yes. Then device is connected via WiFi and doesn't use internet if_iobytes values still come because this method provides network bytes exchanges and not just internet . NSArray..
Does IOS support all Unicode emojies? http://stackoverflow.com/questions/12140770/does-ios-support-all-unicode-emojies would be really appreciated Thanks in Advance iphone objective c ios unicode emoji share improve this question Doesn't Objective C use UTF 16 internally like Java and C# If so then U 1F3C7 wouldn't be u1f3c7 but the surrogate pair uD83C uDFC7..
Writing video + generated audio to AVAssetWriterInput, audio stuttering http://stackoverflow.com/questions/12187124/writing-video-generated-audio-to-avassetwriterinput-audio-stuttering providing the audio in fixed blocks of 1024 samples since this is the size of the DCT used by the AAC compressor. Doesn't make any difference. I've tried pushing all the blocks in one go before writing any video. Doesn't work. I've tried using.. the AAC compressor. Doesn't make any difference. I've tried pushing all the blocks in one go before writing any video. Doesn't work. I've tried using CMSampleBufferCreate for the remaining blocks and CMAudioSampleBufferCreateWithPacketDescriptions..
-viewDidLoad not called in subclassed UIViewController http://stackoverflow.com/questions/1479576/viewdidload-not-called-in-subclassed-uiviewcontroller myViewController MyViewController alloc init myViewController loadView superView addSubview myViewController.view Doesn't call viewDidLoad. then the view getter can see you've already loaded the view and it assumes you also called viewDidLoad..
How do you set the hardware volume in an iPhone app? http://stackoverflow.com/questions/215524/how-do-you-set-the-hardware-volume-in-an-iphone-app improve this question They use the MPVolumeView simple add it and it's makes the rest when the user touch it. Note Doesn't work in iPhone Simulator. I think the release note also mentioned do not use it direct in Interface Builder. MPVolumeView..
How view data stored in Core Data? http://stackoverflow.com/questions/2268102/how-view-data-stored-in-core-data in there. Is there an easier way than searching for the backing store mine should be SQLite and reading it from there Doesn't seem very Apple esque. iphone core data share improve this question Once your app has run in the simulator and created..
How to do a flip animation between more than two UIViews? http://stackoverflow.com/questions/238654/how-to-do-a-flip-animation-between-more-than-two-uiviews 0 withSubviewAtIndex 1 And so I would do self superview exchangeSubviewAtIndex currentView withSubviewAtIndex nextView Doesn't work because curentView is not global... with each instance of a class it's reset to what it's instanciated to. currentView..
Code signing error: Doesn't match key pair in default keychain http://stackoverflow.com/questions/2452969/code-signing-error-doesnt-match-key-pair-in-default-keychain signing error Doesn't match key pair in default keychain Code Sign error The identity 'iPhone Developer XXXXXXXXXX' doesn't match any valid certificate..
Can I load a UIImage from a URL? http://stackoverflow.com/questions/2782454/can-i-load-a-uiimage-from-a-url NSString photoURL's address is 0x536fbe0 doesn't respond to length Why does it say it doesn't respond to NSURL length Doesn't it know that param is an NSString not a NSURL EDIT2 OK the only problem with the code is the string to URL conversion. If..
Tips for a successful AppStore submission? [closed] http://stackoverflow.com/questions/28551/tips-for-a-successful-appstore-submission for a smooth submission process. Here's things I've covered No memory leaks Tested performance on an actual device Doesn't crash Using correct certificates profile What I'm a little unsure about are how to configure the Bundle Display Name Bundle..
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 on the iPhone how to get started I want to display and rotate a single 3D model preferably textured on the iPhone. Doesn't have to zoom in and out or have a background or anything. I have the following an iPhone a MacBook the iPhone SDK Blender..
How can I replicate the trashing animation of Mail.app http://stackoverflow.com/questions/428110/how-can-i-replicate-the-trashing-animation-of-mail-app tubey swirl cameraIris cameraIrisHollowClose cameraIrisHollowOpen rippleEffect charminUltra zoomyIn and zoomyOut. Doesn't work in the simulator. CATransition animation CATransition animation animation.type @ suckEffect animation.duration 2.0f..
Link to resources inside WebView - iPhone http://stackoverflow.com/questions/478665/link-to-resources-inside-webview-iphone other resources For example images or other html files . Just doing a relative link doesn't work a href OtherPage.html Doesn't work a iphone html resources hyperlink webview share improve this question When you load those resources you need to..
How to preserve the index path value in the table view in iPhone? http://stackoverflow.com/questions/4815770/how-to-preserve-the-index-path-value-in-the-table-view-in-iphone UITableViewCell tableView UITableView tableView cellForRowAtIndexPath NSIndexPath indexPath if checkedData indexPath Doesn't works cell.accessoryType UITableViewCellAccessoryCheckmark Please help me out. Thanks iphone uitableview checkmark share..
Question about Apple's LazyTableImages sample - Doesn't behave exactly like the app store http://stackoverflow.com/questions/4964632/question-about-apples-lazytableimages-sample-doesnt-behave-exactly-like-the about Apple's LazyTableImages sample Doesn't behave exactly like the app store I have a UITableView with a list of items each having it's own image. I thought Apple's..
Releasing renderInContext result within a loop http://stackoverflow.com/questions/4970627/releasing-renderincontext-result-within-a-loop expect due to the Autorelease pool. It doesn't crash And if I just comment out the renderInContext line it works fine. Doesn't crash So it looks as if renderInContext is holding onto the image somehow how can I get it to release it Or any alternative..
Xcode won't recognize my new provisioning profile http://stackoverflow.com/questions/5291463/xcode-wont-recognize-my-new-provisioning-profile the new profile by now. I've tried removing the new profile from my devices and my Mac then reinstalling the profile. Doesn't work Xcode is still trying to look for the old one. I've also tried selecting a different profile to make Xcode forget the..
Need some help understanding transient properties in Core Data http://stackoverflow.com/questions/7504391/need-some-help-understanding-transient-properties-in-core-data @implementation Foo @dynamic modeledProperty void doSomething data @end What happens if I call doSomething on a fault Doesn't respond to selector crash Runs my code but my instance variables don't exist who knows what happens when it does data data..
What does the error message “No provisioned iPhone OS device is connected.” mean? http://stackoverflow.com/questions/841719/what-does-the-error-message-no-provisioned-iphone-os-device-is-connected-mean is connected as usual iTunes starts automatically and I close that to prevent interruptions. I tried restarting Xcode. Doesn't help. My Apple Dev Enrollment is brand new. Any idea what the problem might be Edit In Window Organizer I can see this message..
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