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2014/10/15 ¤U¤È 10:10:14
iphone Programming Glossary: implementingHow 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 to the project you can get those here 3 Add @class Reachability to the .h file of where you are implementing the code 4 Create a couple instances to check in the interface section of the .h file Reachability internetReachable.. checkNetworkStatus NSNotification notice 6 Add #import Reachability.h to the .m file where you are implementing the check 7 In the .m file of where you are implementing the check you can place this in one of the.. to the .m file where you are implementing the check 7 In the .m file of where you are implementing the check you can place this in one of the first methods called init or viewWillAppear or viewDidLoad..
When should I release objects in -(void)viewDidUnload rather than in -dealloc? http://stackoverflow.com/questions/1158788/when-should-i-release-objects-in-voidviewdidunload-rather-than-in-dealloc wanted to elaborate more about logic behind viewDidUnload . One of the most important reasons for implementing it is that UIViewController subclasses commonly also contain owning references to various subviews in..
@synthesize vs @dynamic, what are the differences? http://stackoverflow.com/questions/1160498/synthesize-vs-dynamic-what-are-the-differences vs @dynamic what are the differences What are the differences between implementing a @property with @dynamic or @synthesize iphone objective c cocoa cocoa touch share improve this..
Declaration/definition of variables locations in ObjectiveC? http://stackoverflow.com/questions/12632285/declaration-definition-of-variables-locations-in-objectivec of class and thus have to be used exactly how they would be used in C. I've seen them used for implementing static variable based singletons before. Are there other convenient uses I'm missing My take from working.. assuming myClass is an object of type MyClass. myClass setMyVar v 1 Because manually declaring and implementing every accessor method was quite annoying @property and @synthesize were introduced to automatically..
UIScrollView. Any thoughts on implementing “infinite” scroll/zoom? http://stackoverflow.com/questions/1493950/uiscrollview-any-thoughts-on-implementing-infinite-scroll-zoom Any thoughts on implementing &ldquo infinite&rdquo scroll zoom So UITableView supports essentially infinite scrolling. There' may..
http://stackoverflow.com/questions/1861656/iphone-reachability-checking set up with. This is my least favorite part of programming by far. FWIW we never ended up implementing this in our code. The two features that required internet access entering the sweepstakes and buying..
Is there a good tutorial for implementing an augmented reality iPhone application? [closed] http://stackoverflow.com/questions/2084327/is-there-a-good-tutorial-for-implementing-an-augmented-reality-iphone-applicatio there a good tutorial for implementing an augmented reality iPhone application closed Are there any good tutorials or sample applications..
http://stackoverflow.com/questions/3790957/reachability-guide-for-ios-4 Guide for iOS 4 Has anyone found a halfway decent guide to implementing Reachability on iOS4 I have yet to find one. Thanks in advance iphone reachability share improve..
Set the maximum character length of a UITextField http://stackoverflow.com/questions/433337/set-the-maximum-character-length-of-a-uitextfield property it's relatively simple to get this functionality by setting the text field's delegate and implementing the following delegate method BOOL textField UITextField textField shouldChangeCharactersInRange NSRange..
http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview question about rounding just two corners of a view and got a great response but am having problems implementing it. Here is my drawRect method void drawRect CGRect rect super drawRect rect Should I uncomment this..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices data sync data synchronization share improve this question I suggest carefully reading and implementing the sync strategy discussed by Dan Grover at iPhone 2009 conference available here as a pdf document...
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 after making a phone call from a native application URL string Would there be any downside to implementing a UIWebView instead of a UILabel in situations where I really wanted the user to be redirected back..
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 work in the background also limited in time when an app is moved to the background rather than implementing long running background processes. How can I implement these regular background location updates iphone..
Customize the MKAnnotationView callout http://stackoverflow.com/questions/8018841/customize-the-mkannotationview-callout view I used notifications. The SO answer I linked at the top contains two complete projects implementing this code class names may differ . I have another project using the UML above at https github.com j4n0..
http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su which is a pain to manage loaded with little annoyances and in general feels like a bad hack when implementing Apple also recommends against doing this . Presenting a modal view controller again places a view controller..
Are there any good UIScrollView Tutorials on the net? http://stackoverflow.com/questions/820557/are-there-any-good-uiscrollview-tutorials-on-the-net the basic functionalities covered very simple uiscrollview demo Scrolling UiScrollViewTutorial implementing tap to zoom in uiscrollview on an iphone multiple virtual pages in uiscrollview Not to mention stackoverflow..
Transparent Modal View on Navigation Controller http://stackoverflow.com/questions/849458/transparent-modal-view-on-navigation-controller disappear which makes any transparency of your modal view pointless. You can verify this by implementing the viewWillDisappear and viewDidDisappear methods in your root view controller . You can add the modal..
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 2 Add Apple's version of Reachability.h and Reachability.m to the project you can get those here 3 Add @class Reachability to the .h file of where you are implementing the code 4 Create a couple instances to check in the interface section of the .h file Reachability internetReachable Reachability hostReachable 5 Add a method in.. a method in the .h for when the network status updates void checkNetworkStatus NSNotification notice 6 Add #import Reachability.h to the .m file where you are implementing the check 7 In the .m file of where you are implementing the check you can place this in one of the first methods called init or viewWillAppear or viewDidLoad etc.. checkNetworkStatus NSNotification notice 6 Add #import Reachability.h to the .m file where you are implementing the check 7 In the .m file of where you are implementing the check you can place this in one of the first methods called init or viewWillAppear or viewDidLoad etc void viewWillAppear BOOL animated check for internet connection..
When should I release objects in -(void)viewDidUnload rather than in -dealloc? http://stackoverflow.com/questions/1158788/when-should-i-release-objects-in-voidviewdidunload-rather-than-in-dealloc question In addition to what has already been indicated I wanted to elaborate more about logic behind viewDidUnload . One of the most important reasons for implementing it is that UIViewController subclasses commonly also contain owning references to various subviews in the view hierarchy. These properties could have been set through..
@synthesize vs @dynamic, what are the differences? http://stackoverflow.com/questions/1160498/synthesize-vs-dynamic-what-are-the-differences vs @dynamic what are the differences What are the differences between implementing a @property with @dynamic or @synthesize iphone objective c cocoa cocoa touch share improve this question @synthesize will generate getter and setter methods..
Declaration/definition of variables locations in ObjectiveC? http://stackoverflow.com/questions/12632285/declaration-definition-of-variables-locations-in-objectivec that have no understanding whatsoever of the concept of class and thus have to be used exactly how they would be used in C. I've seen them used for implementing static variable based singletons before. Are there other convenient uses I'm missing My take from working with iOS is that ivars have been alost completely phased.. send messages call methods OtherClass.m int v myClass myVar assuming myClass is an object of type MyClass. myClass setMyVar v 1 Because manually declaring and implementing every accessor method was quite annoying @property and @synthesize were introduced to automatically generate the accessor methods MyClass.h @interface MyClass NSObject..
UIScrollView. Any thoughts on implementing “infinite” scroll/zoom? http://stackoverflow.com/questions/1493950/uiscrollview-any-thoughts-on-implementing-infinite-scroll-zoom Any thoughts on implementing &ldquo infinite&rdquo scroll zoom So UITableView supports essentially infinite scrolling. There' may be a limit but that sucker can scroll for a looonnnggg time...
http://stackoverflow.com/questions/1861656/iphone-reachability-checking SystemConfiguration SystemConfiguration.h and #import Reachability.h set up with. This is my least favorite part of programming by far. FWIW we never ended up implementing this in our code. The two features that required internet access entering the sweepstakes and buying the dvd were not main features. Nothing else required internet..
Is there a good tutorial for implementing an augmented reality iPhone application? [closed] http://stackoverflow.com/questions/2084327/is-there-a-good-tutorial-for-implementing-an-augmented-reality-iphone-applicatio there a good tutorial for implementing an augmented reality iPhone application closed Are there any good tutorials or sample applications out there that demonstrate how to make an augmented reality..
http://stackoverflow.com/questions/3790957/reachability-guide-for-ios-4 Guide for iOS 4 Has anyone found a halfway decent guide to implementing Reachability on iOS4 I have yet to find one. Thanks in advance iphone reachability share improve this question I have implemented Reachability like this. Download..
Set the maximum character length of a UITextField http://stackoverflow.com/questions/433337/set-the-maximum-character-length-of-a-uitextfield question While the UITextField class has no max length property it's relatively simple to get this functionality by setting the text field's delegate and implementing the following delegate method BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString NSString string NSUInteger newLength..
http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview two corners in UIView A little while ago I posted a question about rounding just two corners of a view and got a great response but am having problems implementing it. Here is my drawRect method void drawRect CGRect rect super drawRect rect Should I uncomment this int radius 5 CGContextRef context UIGraphicsGetCurrentContext..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices should I look at to make this possible iphone ios core data sync data synchronization share improve this question I suggest carefully reading and implementing the sync strategy discussed by Dan Grover at iPhone 2009 conference available here as a pdf document. This is a viable solution and is not that difficult to implement..
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 Is it true that it's impossible to return to an application after making a phone call from a native application URL string Would there be any downside to implementing a UIWebView instead of a UILabel in situations where I really wanted the user to be redirected back to my application after completing a phone call iphone objective..
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 As far as I understand this should be used to finish some work in the background also limited in time when an app is moved to the background rather than implementing long running background processes. How can I implement these regular background location updates iphone ios objective c core location background process share..
Customize the MKAnnotationView callout http://stackoverflow.com/questions/8018841/customize-the-mkannotationview-callout
http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su requires passing events to the sub view controller which is a pain to manage loaded with little annoyances and in general feels like a bad hack when implementing Apple also recommends against doing this . Presenting a modal view controller again places a view controller on top of another and while it doesn't have the event..
Are there any good UIScrollView Tutorials on the net? http://stackoverflow.com/questions/820557/are-there-any-good-uiscrollview-tutorials-on-the-net
Transparent Modal View on Navigation Controller http://stackoverflow.com/questions/849458/transparent-modal-view-on-navigation-controller once the animation finishes the view just covered will actually disappear which makes any transparency of your modal view pointless. You can verify this by implementing the viewWillDisappear and viewDidDisappear methods in your root view controller . You can add the modal view directly to the view hierarchy like so UIView modalView..
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 and Reachability.m to the project you can get those here 3 Add @class Reachability to the .h file of where you are implementing the code 4 Create a couple instances to check in the interface section of the .h file Reachability internetReachable Reachability.. status updates void checkNetworkStatus NSNotification notice 6 Add #import Reachability.h to the .m file where you are implementing the check 7 In the .m file of where you are implementing the check you can place this in one of the first methods called.. 6 Add #import Reachability.h to the .m file where you are implementing the check 7 In the .m file of where you are implementing the check you can place this in one of the first methods called init or viewWillAppear or viewDidLoad etc void viewWillAppear..
When should I release objects in -(void)viewDidUnload rather than in -dealloc? http://stackoverflow.com/questions/1158788/when-should-i-release-objects-in-voidviewdidunload-rather-than-in-dealloc been indicated I wanted to elaborate more about logic behind viewDidUnload . One of the most important reasons for implementing it is that UIViewController subclasses commonly also contain owning references to various subviews in the view hierarchy...
@synthesize vs @dynamic, what are the differences? http://stackoverflow.com/questions/1160498/synthesize-vs-dynamic-what-are-the-differences vs @dynamic what are the differences What are the differences between implementing a @property with @dynamic or @synthesize iphone objective c cocoa cocoa touch share improve this question @synthesize..
Declaration/definition of variables locations in ObjectiveC? http://stackoverflow.com/questions/12632285/declaration-definition-of-variables-locations-in-objectivec of the concept of class and thus have to be used exactly how they would be used in C. I've seen them used for implementing static variable based singletons before. Are there other convenient uses I'm missing My take from working with iOS is that.. int v myClass myVar assuming myClass is an object of type MyClass. myClass setMyVar v 1 Because manually declaring and implementing every accessor method was quite annoying @property and @synthesize were introduced to automatically generate the accessor..
UIScrollView. Any thoughts on implementing “infinite” scroll/zoom? http://stackoverflow.com/questions/1493950/uiscrollview-any-thoughts-on-implementing-infinite-scroll-zoom Any thoughts on implementing &ldquo infinite&rdquo scroll zoom So UITableView supports essentially infinite scrolling. There' may be a limit but that..
http://stackoverflow.com/questions/1861656/iphone-reachability-checking and #import Reachability.h set up with. This is my least favorite part of programming by far. FWIW we never ended up implementing this in our code. The two features that required internet access entering the sweepstakes and buying the dvd were not main..
Is there a good tutorial for implementing an augmented reality iPhone application? [closed] http://stackoverflow.com/questions/2084327/is-there-a-good-tutorial-for-implementing-an-augmented-reality-iphone-applicatio there a good tutorial for implementing an augmented reality iPhone application closed Are there any good tutorials or sample applications out there that demonstrate..
http://stackoverflow.com/questions/3790957/reachability-guide-for-ios-4 Guide for iOS 4 Has anyone found a halfway decent guide to implementing Reachability on iOS4 I have yet to find one. Thanks in advance iphone reachability share improve this question I have..
Set the maximum character length of a UITextField http://stackoverflow.com/questions/433337/set-the-maximum-character-length-of-a-uitextfield has no max length property it's relatively simple to get this functionality by setting the text field's delegate and implementing the following delegate method BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString..
http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview ago I posted a question about rounding just two corners of a view and got a great response but am having problems implementing it. Here is my drawRect method void drawRect CGRect rect super drawRect rect Should I uncomment this int radius 5 CGContextRef..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices iphone ios core data sync data synchronization share improve this question I suggest carefully reading and implementing the sync strategy discussed by Dan Grover at iPhone 2009 conference available here as a pdf document. This is a viable solution..
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 return to an application after making a phone call from a native application URL string Would there be any downside to implementing a UIWebView instead of a UILabel in situations where I really wanted the user to be redirected back to my application after..
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 be used to finish some work in the background also limited in time when an app is moved to the background rather than implementing long running background processes. How can I implement these regular background location updates iphone ios objective c..
Customize the MKAnnotationView callout http://stackoverflow.com/questions/8018841/customize-the-mkannotationview-callout from the callout view I used notifications. The SO answer I linked at the top contains two complete projects implementing this code class names may differ . I have another project using the UML above at https github.com j4n0 callout . share..
http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su sub view controller which is a pain to manage loaded with little annoyances and in general feels like a bad hack when implementing Apple also recommends against doing this . Presenting a modal view controller again places a view controller on top of another..
Are there any good UIScrollView Tutorials on the net? http://stackoverflow.com/questions/820557/are-there-any-good-uiscrollview-tutorials-on-the-net Some good samples with the basic functionalities covered very simple uiscrollview demo Scrolling UiScrollViewTutorial implementing tap to zoom in uiscrollview on an iphone multiple virtual pages in uiscrollview Not to mention stackoverflow UIScrollView..
Transparent Modal View on Navigation Controller http://stackoverflow.com/questions/849458/transparent-modal-view-on-navigation-controller just covered will actually disappear which makes any transparency of your modal view pointless. You can verify this by implementing the viewWillDisappear and viewDidDisappear methods in your root view controller . You can add the modal view directly to..
Do I have to call addSubview after calling addChildViewController? http://stackoverflow.com/questions/10143903/do-i-have-to-call-addsubview-after-calling-addchildviewcontroller
Implementing a Countdown Timer in Objective-c? http://stackoverflow.com/questions/10663184/implementing-a-countdown-timer-in-objective-c a Countdown Timer in Objective c I am new to iOS programming. I am working on words matching game. In this game I need..
iOS: Keep application running in background http://stackoverflow.com/questions/10674004/ios-keep-application-running-in-background objective c ios xcode4.3 background process share improve this question Yes no need to jailbreak. Check out the Implementing long running background tasks section of this doc from Apple . From Apple's doc Declaring Your App ™s Supported Background..
iPhone SDK - Frosted Glass (iOS 7 Blur) Effect http://stackoverflow.com/questions/11601166/iphone-sdk-frosted-glass-ios-7-blur-effect SDK in order to work and it can be risky if Apple changes UIToolbar. UPDATE 3 Apple mentioned at WWDC 2013 Session 226 Implementing Engaging UI on iOS they would provide a category class on UIImage called UIImage ImageEffects I googled it and found here..
UISearchBar Sample Code [closed] http://stackoverflow.com/questions/1302962/uisearchbar-sample-code Sample Code closed Implementing a searchbar can be tricky business and I'm struggling to make it work for my situation. Here's a collection of some of the..
Implementing Unit Testing with the iPhone SDK http://stackoverflow.com/questions/2002330/implementing-unit-testing-with-the-iphone-sdk Unit Testing with the iPhone SDK So I've followed this tutorial to setup unit testing on my app when I got a little stuck...
Core Data pattern: how to efficiently update local info with changes from network? http://stackoverflow.com/questions/2209228/core-data-pattern-how-to-efficiently-update-local-info-with-changes-from-networ still blocks. iphone performance core data cocoa design patterns nsfetchrequest share improve this question Read Implementing Find or Create Efficiently in Core Data Programming Guide. Basically you need to create an array of IDs or properties like..
Delegates Vs. Notifications in iPhoneOS http://stackoverflow.com/questions/2232694/delegates-vs-notifications-in-iphoneos should change the model and then the model should inform its observers or its delegate that it has been changed. Implementing a delegate pattern is simple In your ChildViewController.h declare the delegate protocol that the delegate must implement..
Implementing URL Shorteners in my iPhone Application [closed] http://stackoverflow.com/questions/2252470/implementing-url-shorteners-in-my-iphone-application URL Shorteners in my iPhone Application closed How do I implement is.gd 's URL shortening API in my iPhone Application..
NSThread vs. NSOperationQueue vs. ??? on the iPhone http://stackoverflow.com/questions/3041837/nsthread-vs-nsoperationqueue-vs-on-the-iphone to cache 100 images is probably overkill and somewhat inefficient. You may want to cancel the cacheImage operation. Implementing cancellation is easier with NSOperationQueue most the work is already done for you. NSOperationQueue is free to switch to..
iphone accelerometer speed and distance http://stackoverflow.com/questions/3177199/iphone-accelerometer-speed-and-distance use the acceleration values from the accelerometer to measure the velocity and distance. There is really good paper Implementing Positioning Algorithms Using Accelerometers which explains the errors you get from the accelerometer and the techniques..
http://stackoverflow.com/questions/4089238/implementing-nscopying NSCopying I've read the NSCopying docs but I am still very unsure about how to implement what is required. My class Vendor..
Implementing Delegate Pattern in Objective-C http://stackoverflow.com/questions/455822/implementing-delegate-pattern-in-objective-c Delegate Pattern in Objective C I am building a class that handles NSURLConnection requests. To allow other classes to..
Measuring time the vehicle takes to accelerate in iPhone http://stackoverflow.com/questions/4654864/measuring-time-the-vehicle-takes-to-accelerate-in-iphone You can use the acceleration values from the accelerometer to measure the velocity. There is really good paper Implementing Positioning Algorithms Using Accelerometers which explains the errors you get from the accelerometer and the techniques..
Turn a page like a Book with UIView? http://stackoverflow.com/questions/477078/turn-a-page-like-a-book-with-uiview check this other libs methods Leaves Not so realistic but really easy to use. PageCurl Really nice effect easy to use. Implementing iBooks page curling using a conical deformation algorithm Amazing but it's just a proof of concept difficult to expand...
http://stackoverflow.com/questions/5512718/return-to-app-from-safari . The name of old delegate on earlier version of iOS is application handleOpenURL For more information see check Apple Implementing Custom URL Schemes . Also iOS developer tips has a tutorial on Launching Your Own Application via a Custom URL Scheme ...
Implementing pull to refresh view feature http://stackoverflow.com/questions/6392048/implementing-pull-to-refresh-view-feature pull to refresh view feature Can we implement pull to refresh feature on a custom view controller . My view controller..
when to use addChildViewController vs pushViewController http://stackoverflow.com/questions/8084050/when-to-use-addchildviewcontroller-vs-pushviewcontroller to use addChildViewController vs pushViewController I just watched a 2011 WWDC presentation on Implementing UIViewController Containment here's a link to the video They mentioned both of these ways of adding viewControllers to the..
Share data between two or more iPhone applications http://stackoverflow.com/questions/9425706/share-data-between-two-or-more-iphone-applications
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