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2014/10/15 ¤U¤È 10:16:05
iphone Programming Glossary: you'llHow 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 projects so you might run into naming conflicts with other projects like ShareKit. If this happens you'll have to rename one of the pairs of Reachability.h and Reachability.m files to something else to resolve..
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone share improve this question Restrictions If you could send an SMS within a program on the iPhone you'll be able to write games that spam people in the background. I'm sure you really want to have spams from.. this new game It roxxers my boxxers and yours will be too roxxersboxxers.com If you sign up now you'll get 3 200 RB points Apple has restrictions for automated or even partially automated SMS and dialing..
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 uri is registered the app will launch immediately and your timer won't fire. If it's not set you'll get an ugly Cannot Open Page dialogue prior to the App Store application launching window.location custom..
http://stackoverflow.com/questions/1388467/reading-epub-format idref attribute which corresponds to one of the ids in a . Look up that id in the NSDictionary and you'll get an href. c this is the the file of the first chapter to show the user. Work out what the full path..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone other views that become first responder from user actions like a search bar or text entry field you'll also need to restore the shaking view first responder status when the other view resigns This method..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk to 3.0 only calls nor does it have a simulator for these. And if you want to support 4.0 features you'll have to do some conditional code to prevent crashes on 3.0 devices. Fun. You can still download from..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received back from just about anything else including factory methods e.g. NSString stringWithFormat then you'll have an autorelease reference which means it could be released at some time in the future by other code..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview appreciated iphone ios cocoa touch core animation share improve this question As Ben said you'll need to work with the UIView's layer using a CATransform3D to perform the layer's rotation. The trick..
http://stackoverflow.com/questions/37464/iphone-app-minus-app-store appstore approval share improve this question Official Developer Program For a standard iPhone you'll need to pay the US 99 yr to be a member of the developer program. You can then use the adhoc system.. using the AccelerometerGraph sample app on iPhone OS 3.0. Create Self Signed Certificate First you'll need to create a self signed certificate and patch your iPhone SDK to allow the use of this certificate.. wish to remove the application later you cannot do so via the standard SpringBoard interface and you'll need to use SSH and update the SpringBoard ssh root@jasoniphone.local rm r Applications AccelerometerGraph.app..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display as documented on this page . Pass 0.0 for scale the third argument and you'll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext uses a fixed..
iPhone/iOS JSON parsing tutorial [closed] http://stackoverflow.com/questions/5813077/iphone-ios-json-parsing-tutorial
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c a view controller is often the delegate of a view it contains. To define your own delegates you'll have to declare their methods somewhere. There are two basic approaches discussed in the Apple Docs..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c then explicitly release it when you're done. Consider the following very contrived bit of code and you'll see a situation where autorelease is required NSString createHelloWorldString NSString s NSString alloc..
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 call the function pointer. Complex Example When the selector takes arguments or returns a value you'll have to change things a bit SEL selector NSSelectorFromString @ processRegion ofView IMP imp _controller.. parameters. ARC allows for declaring consumed parameters and if the method consumes the parameter you'll probably eventually send a message to a zombie and crash. There are ways to work around this with bridged.. 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..
Delete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data Record File in iOS 5 and OS X 10.7 simply deleting files pointed by storeURLs is not enough. You'll leave the external record files behind. Since the naming scheme of these external record files is not..
How do I wrap text in a UITableViewCell without a custom cell http://stackoverflow.com/questions/129502/how-do-i-wrap-text-in-a-uitableviewcell-without-a-custom-cell cell.textLabel.numberOfLines 0 cell.textLabel.font UIFont fontWithName @ Helvetica size 17.0 You'll notice that I set the number of lines for the label to 0. This lets it use as many lines as it needs...
http://stackoverflow.com/questions/1388467/reading-epub-format once you've got the basics unzipping parsing XML down it's not particularly difficult or complex. You'll need to work out how to download the EPUB to unzip it somewhere to parse the manifest and then to display.. where the path is the full path from 7c . Load this request using the UIWebView you created in 1 . You'll need to implement forward backward buttons or swipes or something so that users can move from one chapter..
iphone webkit css animations cause flicker http://stackoverflow.com/questions/2946748/iphone-webkit-css-animations-cause-flicker move things around. The biggest issue though is when you click Match items then click Play again . You'll see as the guns animate in the entire background of the accessories purses goes white. Can someone please..
How can I launch the Google Maps iPhone application from within my own native application? http://stackoverflow.com/questions/30058/how-can-i-launch-the-google-maps-iphone-application-from-within-my-own-native-ap at the current location try MKMapItem mapItemForCurrentLocation openInMapsWithLaunchOptions nil You'll need to be linked against MapKit for this and it will prompt for location access I believe . share..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview m34 . Matrix math has never been my thing so I can't explain exactly why this works but it does. You'll need to set this value to a negative fraction for your initial transform then apply your layer rotation..
iphone, dismiss keyboard when touching outside of textfield http://stackoverflow.com/questions/5306240/iphone-dismiss-keyboard-when-touching-outside-of-textfield touches outside of the textfield iphone cocoa touch ios uikit share improve this question You'll need to add an UITapGestureRecogniser and assign it to the view and then call resign first responder..
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview fetch. Going the other way from a UIWebView is a bit trickier but is basically the same concept. You'll have to pull the request from the view then do the fetch as before NSURL requestURL yourWebView request..
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
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone the official SDK Cocoa Touch iphone ios cocoa touch sms share improve this question Restrictions If you could send an SMS within a program on the iPhone you'll be able to write games that spam people in the background. I'm sure you really want to have spams from your friends Try out this new game It roxxers my boxxers.. sure you really want to have spams from your friends Try out this new game It roxxers my boxxers and yours will be too roxxersboxxers.com If you sign up now you'll get 3 200 RB points Apple has restrictions for automated or even partially automated SMS and dialing operations. Imagine if the game instead dialed 911 at a particular..
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
http://stackoverflow.com/questions/1388467/reading-epub-format href. b Look at the first itemref in the spine . It has an idref attribute which corresponds to one of the ids in a . Look up that id in the NSDictionary and you'll get an href. c this is the the file of the first chapter to show the user. Work out what the full path is hint it's wherever you unzipped the zip file to in 3 plus..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone super viewWillDisappear animated Don't forget that if you have other views that become first responder from user actions like a search bar or text entry field you'll also need to restore the shaking view first responder status when the other view resigns This method works even if you set applicationSupportsShakeToEdit to NO...
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk 3.2.3 compiler will no longer be enforcing your compliance to 3.0 only calls nor does it have a simulator for these. And if you want to support 4.0 features you'll have to do some conditional code to prevent crashes on 3.0 devices. Fun. You can still download from Apple and install a previous Xcode version or SDK cf. here..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received must release it when you are done. But if you get something back from just about anything else including factory methods e.g. NSString stringWithFormat then you'll have an autorelease reference which means it could be released at some time in the future by other code so it is vital that if you need to keep it around beyond..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview Any help pointers or example code snippets would be really appreciated iphone ios cocoa touch core animation share improve this question As Ben said you'll need to work with the UIView's layer using a CATransform3D to perform the layer's rotation. The trick to get perspective working as described here is to directly..
http://stackoverflow.com/questions/37464/iphone-app-minus-app-store Thanks for any help you can give iphone ios app store appstore approval share improve this question Official Developer Program For a standard iPhone you'll need to pay the US 99 yr to be a member of the developer program. You can then use the adhoc system to install your application onto up to 100 devices. The developer.. you can use the following method which I have personally tested using the AccelerometerGraph sample app on iPhone OS 3.0. Create Self Signed Certificate First you'll need to create a self signed certificate and patch your iPhone SDK to allow the use of this certificate Launch Keychain Access.app. With no items selected from.. as a custom build step in your project. Note that if you wish to remove the application later you cannot do so via the standard SpringBoard interface and you'll need to use SSH and update the SpringBoard ssh root@jasoniphone.local rm r Applications AccelerometerGraph.app ssh mobile@jasoniphone.local uicache share improve..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display from use of UIGraphicsBeginImageContext to UIGraphicsBeginImageContextWithOptions as documented on this page . Pass 0.0 for scale the third argument and you'll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext uses a fixed scale factor of 1.0 so you're actually getting exactly the..
iPhone/iOS JSON parsing tutorial [closed] http://stackoverflow.com/questions/5813077/iphone-ios-json-parsing-tutorial
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c object often holds a strong reference to that object. For example a view controller is often the delegate of a view it contains. To define your own delegates you'll have to declare their methods somewhere. There are two basic approaches discussed in the Apple Docs on protocols 1 An Informal Protocol This can be done as NSWindow..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c onto that string you'd need to call retain explicitly and then explicitly release it when you're done. Consider the following very contrived bit of code and you'll see a situation where autorelease is required NSString createHelloWorldString NSString s NSString alloc initWithString @ Hello World Now what We want to return..
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 a warning since the pointer types don't match . Finally you call the function pointer. Complex Example When the selector takes arguments or returns a value you'll have to change things a bit SEL selector NSSelectorFromString @ processRegion ofView IMP imp _controller methodForSelector selector CGRect func id SEL CGRect UIView.. similar problems with not declaring how that method consumes parameters. ARC allows for declaring consumed parameters and if the method consumes the parameter you'll probably eventually send a message to a zombie and crash. There are ways to work around this with bridged casting but really it'd be better to simply use the IMP.. id and you're not importing all 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..
Delete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data storage allowsExternalBinaryDataStorage or Store in External Record File in iOS 5 and OS X 10.7 simply deleting files pointed by storeURLs is not enough. You'll leave the external record files behind. Since the naming scheme of these external record files is not public I don't have a universal solution yet. an0 May 8 '12..
How do I wrap text in a UITableViewCell without a custom cell http://stackoverflow.com/questions/129502/how-do-i-wrap-text-in-a-uitableviewcell-without-a-custom-cell autorelease cell.textLabel.lineBreakMode UILineBreakModeWordWrap cell.textLabel.numberOfLines 0 cell.textLabel.font UIFont fontWithName @ Helvetica size 17.0 You'll notice that I set the number of lines for the label to 0. This lets it use as many lines as it needs. The next part is to specify how large your UITableViewCell..
http://stackoverflow.com/questions/1388467/reading-epub-format a few extra files The specs look a bit daunting but actually once you've got the basics unzipping parsing XML down it's not particularly difficult or complex. You'll need to work out how to download the EPUB to unzip it somewhere to parse the manifest and then to display the relevant content. Some pointers if you're just starting.. the OPF file in 6 8 create an NSURL using fileURLWithPath where the path is the full path from 7c . Load this request using the UIWebView you created in 1 . You'll need to implement forward backward buttons or swipes or something so that users can move from one chapter to another. Use the spine to work out which file to show..
iphone webkit css animations cause flicker http://stackoverflow.com/questions/2946748/iphone-webkit-css-animations-cause-flicker I want it to animate and the transform is the only way I move things around. The biggest issue though is when you click Match items then click Play again . You'll see as the guns animate in the entire background of the accessories purses goes white. Can someone please radiate me with some insight asto why this is happening..
How can I launch the Google Maps iPhone application from within my own native application? http://stackoverflow.com/questions/30058/how-can-i-launch-the-google-maps-iphone-application-from-within-my-own-native-ap
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview directly access one of the matrix cells of the CATransform3D m34 . Matrix math has never been my thing so I can't explain exactly why this works but it does. You'll need to set this value to a negative fraction for your initial transform then apply your layer rotation transforms to that. You should also be able to do the following..
iphone, dismiss keyboard when touching outside of textfield http://stackoverflow.com/questions/5306240/iphone-dismiss-keyboard-when-touching-outside-of-textfield I'm wondering how to make the keyboard disappear when the user touches outside of the textfield iphone cocoa touch ios uikit share improve this question You'll need to add an UITapGestureRecogniser and assign it to the view and then call resign first responder on the textfield on it's selector. The code In viewDidLoad..
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview the fetch. You should check the contents of error after the fetch. Going the other way from a UIWebView is a bit trickier but is basically the same concept. You'll have to pull the request from the view then do the fetch as before NSURL requestURL yourWebView request URL NSError error NSString page NSString stringWithContentsOfURL..
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 used classes in projects so you might run into naming conflicts with other projects like ShareKit. If this happens you'll have to rename one of the pairs of Reachability.h and Reachability.m files to something else to resolve the issue. share..
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone cocoa touch sms share improve this question Restrictions If you could send an SMS within a program on the iPhone you'll be able to write games that spam people in the background. I'm sure you really want to have spams from your friends Try.. your friends Try out this new game It roxxers my boxxers and yours will be too roxxersboxxers.com If you sign up now you'll get 3 200 RB points Apple has restrictions for automated or even partially automated SMS and dialing operations. Imagine..
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 yourappname 25 If custom uri is registered the app will launch immediately and your timer won't fire. If it's not set you'll get an ugly Cannot Open Page dialogue prior to the App Store application launching window.location custom uri share improve..
http://stackoverflow.com/questions/1388467/reading-epub-format spine . It has an idref attribute which corresponds to one of the ids in a . Look up that id in the NSDictionary and you'll get an href. c this is the the file of the first chapter to show the user. Work out what the full path is hint it's wherever..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone that if you have other views that become first responder from user actions like a search bar or text entry field you'll also need to restore the shaking view first responder status when the other view resigns This method works even if you set..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone
Install xCode 3.2.3 w/ iPhone SDK 4, get “Base SDK missing”, can't see other SDKs http://stackoverflow.com/questions/3161385/install-xcode-3-2-3-w-iphone-sdk-4-get-base-sdk-missing-cant-see-other-sdk your compliance to 3.0 only calls nor does it have a simulator for these. And if you want to support 4.0 features you'll have to do some conditional code to prevent crashes on 3.0 devices. Fun. You can still download from Apple and install a..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received if you get something back from just about anything else including factory methods e.g. NSString stringWithFormat then you'll have an autorelease reference which means it could be released at some time in the future by other code so it is vital that..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview would be really appreciated iphone ios cocoa touch core animation share improve this question As Ben said you'll need to work with the UIView's layer using a CATransform3D to perform the layer's rotation. The trick to get perspective..
http://stackoverflow.com/questions/37464/iphone-app-minus-app-store ios app store appstore approval share improve this question Official Developer Program For a standard iPhone you'll need to pay the US 99 yr to be a member of the developer program. You can then use the adhoc system to install your application.. have personally tested using the AccelerometerGraph sample app on iPhone OS 3.0. Create Self Signed Certificate First you'll need to create a self signed certificate and patch your iPhone SDK to allow the use of this certificate Launch Keychain.. Note that if you wish to remove the application later you cannot do so via the standard SpringBoard interface and you'll need to use SSH and update the SpringBoard ssh root@jasoniphone.local rm r Applications AccelerometerGraph.app ssh mobile@jasoniphone.local..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display to UIGraphicsBeginImageContextWithOptions as documented on this page . Pass 0.0 for scale the third argument and you'll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext uses a fixed scale factor of..
iPhone/iOS JSON parsing tutorial [closed] http://stackoverflow.com/questions/5813077/iphone-ios-json-parsing-tutorial
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c that object. For example a view controller is often the delegate of a view it contains. To define your own delegates you'll have to declare their methods somewhere. There are two basic approaches discussed in the Apple Docs on protocols 1 An Informal..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c explicitly and then explicitly release it when you're done. Consider the following very contrived bit of code and you'll see a situation where autorelease is required NSString createHelloWorldString NSString s NSString alloc initWithString @..
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 match . Finally you call the function pointer. Complex Example When the selector takes arguments or returns a value you'll have to change things a bit SEL selector NSSelectorFromString @ processRegion ofView IMP imp _controller methodForSelector.. that method consumes parameters. ARC allows for declaring consumed parameters and if the method consumes the parameter you'll probably eventually send a message to a zombie and crash. There are ways to work around this with bridged casting but really.. 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..
Delete/Reset all entries in Core Data? http://stackoverflow.com/questions/1077810/delete-reset-all-entries-in-core-data or Store in External Record File in iOS 5 and OS X 10.7 simply deleting files pointed by storeURLs is not enough. You'll leave the external record files behind. Since the naming scheme of these external record files is not public I don't have..
Upload photo to arbitrary FTP with iPhone app http://stackoverflow.com/questions/128378/upload-photo-to-arbitrary-ftp-with-iphone-app
How do I wrap text in a UITableViewCell without a custom cell http://stackoverflow.com/questions/129502/how-do-i-wrap-text-in-a-uitableviewcell-without-a-custom-cell UILineBreakModeWordWrap cell.textLabel.numberOfLines 0 cell.textLabel.font UIFont fontWithName @ Helvetica size 17.0 You'll notice that I set the number of lines for the label to 0. This lets it use as many lines as it needs. The next part is to..
http://stackoverflow.com/questions/1388467/reading-epub-format but actually once you've got the basics unzipping parsing XML down it's not particularly difficult or complex. You'll need to work out how to download the EPUB to unzip it somewhere to parse the manifest and then to display the relevant content... fileURLWithPath where the path is the full path from 7c . Load this request using the UIWebView you created in 1 . You'll need to implement forward backward buttons or swipes or something so that users can move from one chapter to another. Use..
iPhone SDK - How to play a video with transparency? http://stackoverflow.com/questions/1401517/iphone-sdk-how-to-play-a-video-with-transparency iPhone it always launches that player interface. Any way to avoid this Thanks iphone share improve this question You'll need to build a custom player using AVFoundation.framework and then use a video with alpha channel. The AVFoundation framework..
iphone webkit css animations cause flicker http://stackoverflow.com/questions/2946748/iphone-webkit-css-animations-cause-flicker is the only way I move things around. The biggest issue though is when you click Match items then click Play again . You'll see as the guns animate in the entire background of the accessories purses goes white. Can someone please radiate me with..
iPad/iPhone browser crashing when loading images in Javascript http://stackoverflow.com/questions/2986039/ipad-iphone-browser-crashing-when-loading-images-in-javascript the dataurl here it was the first dataurl image I could find . I'm using it simply so you can see the script working. You'll probably want to use a transparent gif instead so use this data url string instead data image gif base64 R0lGODlhAQABAIAAAP..
How can I launch the Google Maps iPhone application from within my own native application? http://stackoverflow.com/questions/30058/how-can-i-launch-the-google-maps-iphone-application-from-within-my-own-native-ap message. To start at the current location try MKMapItem mapItemForCurrentLocation openInMapsWithLaunchOptions nil You'll need to be linked against MapKit for this and it will prompt for location access I believe . share improve this answer..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview of the CATransform3D m34 . Matrix math has never been my thing so I can't explain exactly why this works but it does. You'll need to set this value to a negative fraction for your initial transform then apply your layer rotation transforms to that...
Bonjour over bluetooth WITHOUT Gamekit ? http://stackoverflow.com/questions/3844189/bonjour-over-bluetooth-without-gamekit beautiful Objective C API but also how you can create a server using CFSocket APIs thin wrappers around BSD sockets . You'll want to look at this even if you are using SRVResolver to see how to use C based API from dns_sd.h . After announcing or..
how can I use animation in cocos2d? http://stackoverflow.com/questions/486609/how-can-i-use-animation-in-cocos2d angle it would only go a quarter circle. Likewise if you used 0.999f pi the circle would rotate in a clockwise manner. You'll want to implement acceleration and deceleration of your wheel and for those a CAKeyframeAnimation would take the place of..
Drawing waveform with AVAssetReader http://stackoverflow.com/questions/5032775/drawing-waveform-with-avassetreader prefer the original linear version but have decided to post it in case someone can improve on the algorithm used. You'll need these imports #import MediaPlayer MediaPlayer.h #import AVFoundation AVFoundation.h First a generic rendering method..
XCode 4 says “finished running <my app>” on the targeted device — Nothing happens http://stackoverflow.com/questions/5292286/xcode-4-says-finished-running-my-app-on-the-targeted-device-nothing-happe another solution. New projects created in Xcode 4.2 by default specify 'armv7' in the 'Required Device Capabilities'. You'll need to remove this if wanting to support devices that run armv6 e.g. the iPhone 3G . Delete armv7 from the 'Required device..
iphone, dismiss keyboard when touching outside of textfield http://stackoverflow.com/questions/5306240/iphone-dismiss-keyboard-when-touching-outside-of-textfield disappear when the user touches outside of the textfield iphone cocoa touch ios uikit share improve this question You'll need to add an UITapGestureRecogniser and assign it to the view and then call resign first responder on the textfield on..
What are the Dangers of Method Swizzling in Objective C? http://stackoverflow.com/questions/5339276/what-are-the-dangers-of-method-swizzling-in-objective-c names are mixed up and everything gets jumbled in your head. Again the alternative implementation addresses this. You'll see clearly named functions in backtraces. Still swizzling can be difficult to debug because it's hard to remember what..
iPhone: Incrementing the application badge through a local notification http://stackoverflow.com/questions/5962054/iphone-incrementing-the-application-badge-through-a-local-notification
how can i detect the touch event of an UIImageView http://stackoverflow.com/questions/855095/how-can-i-detect-the-touch-event-of-an-uiimageview A UIImageView is derived from a UIView which is derived from UIResponder so it's ready to handle touch events. You'll want to provide the touchesBegan touchesMoved and touchesEnded methods and they'll get called if the user taps the image... the image set as the button image. But if you want finer grain control over taps moves etc. this is the way to go. You'll also want to look at a few more things Override canBecomeFirstResponder and return YES to indicate that the view can become..
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview of error after the fetch. Going the other way from a UIWebView is a bit trickier but is basically the same concept. You'll have to pull the request from the view then do the fetch as before NSURL requestURL yourWebView request URL NSError error..
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