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2014/10/15 ¤U¤È 10:15:08
iphone Programming Glossary: twoHTML character decoding in Objective-C / Cocoa Touch http://stackoverflow.com/questions/1105169/html-character-decoding-in-objective-c-cocoa-touch objective C but this stack overflow question might be of some help. Edit Since answering this some two years ago there are some great solutions see @Michael Waterfall's answer below. share improve this..
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw to objc_exception_throw this was the answer from the brad larson on this SO question If you add two breakpoints you should be able to debug these exceptions. To do this go to Run Show Breakpoints and.. you should be able to debug these exceptions. To do this go to Run Show Breakpoints and create two global breakpoints I do them globally because they are so useful in all my applications . The first..
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate] http://stackoverflow.com/questions/12396545/ios-6-apps-how-to-deal-with-iphone-5-screen-size seamlessly between versions as it happened when we got the Retina . And will we have to design two storyboards just like for the iPad I personally don't think Apple will require you to check the screen.. accommodate varying heights. If that's not a possibility then the only remaining option is to have two UIs pre iPhone 5 and iPhone 5 . If that sounds ugly then you could go with the default letterboxed model..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone the encrypted data I've been trying with AES256 encryption. I want to write a method which takes two NSString instances one being the message to encrypt and the other being a 'passcode' to encrypt it with.. data will not always translate nicely into an NSString it may be more convenient to write two methods that wrap the functionality you need in forward and reverse... NSData encryptString NSString..
http://stackoverflow.com/questions/158914/cropping-a-uiimage in UIWebViews . I've started to notice some crashes in this code and I'm a bit stumped. I've got two different theories and I'm wondering if either is on base. Theory 1 I achieve the cropping by drawing..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults nsuserdefaults share improve this question On your Player class implement the following two methods substituting calls to encodeObject with something relevant to your own object void encodeWithCoder..
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
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 the same approach except I cache the generated image on the disk and always generate two to three images in advance in a separate thread. I don't overlay with a UIImage but instead draw the..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll I tried Sergio's answer but had exception issues when actually running on a device. Yes you create two fetch results controllers one for the normal display and another one for the UISearchBar's table view... thrown about incorrect number of sections or rows in sections. Here is what I did I have two FRCs available as properties fetchedResultsController and searchFetchedResultsController. The searchFetchedResultsController..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c 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..
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 NSLocale alloc initWithLocaleIdentifier @ en_US df setLocale loc loc release Not too bad in onsies twosies but I'm dealing with about ten different apps and the first one I look at has 43 instances of this.. NSDateFormatter with a version that 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.. Touch is set to Great Britain with the 12 24 switch set to 12. There's a clear difference in the two results and I judge the category version to be wrong. Note that the log in the category version IS getting..
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 to cast it to a function pointer that includes all of the details that ARC needs including the two implicit hidden arguments self and _cmd of every Objective C method call . This is handled in the third.. more typing and is also slower so there's little reason to do it. 1 All Objective C methods have two hidden arguments self and _cmd that are implicitly added when you call a method. 2 Actually it's possible.. 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..
HTML character decoding in Objective-C / Cocoa Touch http://stackoverflow.com/questions/1105169/html-character-decoding-in-objective-c-cocoa-touch
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw to add a breakpoint to objc_exception_throw this was the answer from the brad larson on this SO question If you add two breakpoints you should be able to debug these exceptions. To do this go to Run Show Breakpoints and create two global breakpoints I do them globally because they.. the brad larson on this SO question If you add two breakpoints you should be able to debug these exceptions. To do this go to Run Show Breakpoints and create two global breakpoints I do them globally because they are so useful in all my applications . The first should be named objc_exception_throw and its location should..
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate] http://stackoverflow.com/questions/12396545/ios-6-apps-how-to-deal-with-iphone-5-screen-size the pixels with the retina non retina problem won't work seamlessly between versions as it happened when we got the Retina . And will we have to design two storyboards just like for the iPad I personally don't think Apple will require you to check the screen size every time you have to draw something like many answers.. best bet would be to re imagine the content so that it can accommodate varying heights. If that's not a possibility then the only remaining option is to have two UIs pre iPhone 5 and iPhone 5 . If that sounds ugly then you could go with the default letterboxed model where the extra points pixels just show up black. Edit..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone to be able to encrypt a string returning another string with the encrypted data I've been trying with AES256 encryption. I want to write a method which takes two NSString instances one being the message to encrypt and the other being a 'passcode' to encrypt it with I suspect I'd have to generate the encryption key with the.. pool drain return 0 Given this code and the fact that encrypted data will not always translate nicely into an NSString it may be more convenient to write two methods that wrap the functionality you need in forward and reverse... NSData encryptString NSString plaintext withKey NSString key return plaintext dataUsingEncoding..
http://stackoverflow.com/questions/158914/cropping-a-uiimage the same results but these images are sometimes displayed in UIWebViews . I've started to notice some crashes in this code and I'm a bit stumped. I've got two different theories and I'm wondering if either is on base. Theory 1 I achieve the cropping by drawing into an offscreen image context of my target size. Since I..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults gotten encrypting working yet. iphone objective c encoding nsuserdefaults share improve this question On your Player class implement the following two methods substituting calls to encodeObject with something relevant to your own object void encodeWithCoder NSCoder encoder Encode properties other class variables..
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
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 question I have build such kind of application using approximatively the same approach except I cache the generated image on the disk and always generate two to three images in advance in a separate thread. I don't overlay with a UIImage but instead draw the image in the layer when zooming is 1. Those tiles will be released..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll question and the other wrong answer hinted at what to do . I tried Sergio's answer but had exception issues when actually running on a device. Yes you create two fetch results controllers one for the normal display and another one for the UISearchBar's table view. If you only use one FRC NSFetchedResultsController then the.. use the filtered version of your FRC and you will see exceptions thrown about incorrect number of sections or rows in sections. Here is what I did I have two FRCs available as properties fetchedResultsController and searchFetchedResultsController. The searchFetchedResultsController should not be used unless there is..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c 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 does in a category on NSObject. For example continuing..
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 generally the US but this is a bit messy NSLocale loc NSLocale alloc initWithLocaleIdentifier @ en_US df setLocale loc loc release Not too bad in onsies twosies but I'm dealing with about ten different apps and the first one I look at has 43 instances of this scenario. So any clever ideas for a macro overridden class.. making the code to obscure My first instinct is to override NSDateFormatter with a version that 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.. 43.392 DemoApp 160 307 date4 null The phone make that an iPod Touch is set to Great Britain with the 12 24 switch set to 12. There's a clear difference in the two results and I judge the category version to be wrong. Note that the log in the category version IS getting executed and stops placed in the code are hit so it's..
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 will not always match exactly. Once you have the IMP you need to cast it to a function pointer that includes all of the details that ARC needs including the two implicit hidden arguments self and _cmd of every Objective C method call . This is handled in the third line the void on the right hand side simply tells the compiler.. to handle this as well but doing so requires a lot more typing and is also slower so there's little reason to do it. 1 All Objective C methods have two hidden arguments self and _cmd that are implicitly added when you call a method. 2 Actually it's possible for it to get the wrong info if declare you objects as..
HTML character decoding in Objective-C / Cocoa Touch http://stackoverflow.com/questions/1105169/html-character-decoding-in-objective-c-cocoa-touch
How to add a breakpoint to objc_exception_throw? http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw to add a breakpoint to objc_exception_throw this was the answer from the brad larson on this SO question If you add two breakpoints you should be able to debug these exceptions. To do this go to Run Show Breakpoints and create two global breakpoints.. you add two breakpoints you should be able to debug these exceptions. To do this go to Run Show Breakpoints and create two global breakpoints I do them globally because they are so useful in all my applications . The first should be named objc_exception_throw..
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate] http://stackoverflow.com/questions/12396545/ios-6-apps-how-to-deal-with-iphone-5-screen-size problem won't work seamlessly between versions as it happened when we got the Retina . And will we have to design two storyboards just like for the iPad I personally don't think Apple will require you to check the screen size every time you.. so that it can accommodate varying heights. If that's not a possibility then the only remaining option is to have two UIs pre iPhone 5 and iPhone 5 . If that sounds ugly then you could go with the default letterboxed model where the extra..
AES Encryption for an NSString on the iPhone http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone another string with the encrypted data I've been trying with AES256 encryption. I want to write a method which takes two NSString instances one being the message to encrypt and the other being a 'passcode' to encrypt it with I suspect I'd have.. and the fact that encrypted data will not always translate nicely into an NSString it may be more convenient to write two methods that wrap the functionality you need in forward and reverse... NSData encryptString NSString plaintext withKey NSString..
http://stackoverflow.com/questions/158914/cropping-a-uiimage sometimes displayed in UIWebViews . I've started to notice some crashes in this code and I'm a bit stumped. I've got two different theories and I'm wondering if either is on base. Theory 1 I achieve the cropping by drawing into an offscreen..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults objective c encoding nsuserdefaults share improve this question On your Player class implement the following two methods substituting calls to encodeObject with something relevant to your own object void encodeWithCoder NSCoder encoder..
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
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 application using approximatively the same approach except I cache the generated image on the disk and always generate two to three images in advance in a separate thread. I don't overlay with a UIImage but instead draw the image in the layer..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll at what to do . I tried Sergio's answer but had exception issues when actually running on a device. Yes you create two fetch results controllers one for the normal display and another one for the UISearchBar's table view. If you only use one.. and you will see exceptions thrown about incorrect number of sections or rows in sections. Here is what I did I have two FRCs available as properties fetchedResultsController and searchFetchedResultsController. The searchFetchedResultsController..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c 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 does in a..
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 messy NSLocale loc NSLocale alloc initWithLocaleIdentifier @ en_US df setLocale loc loc release Not too bad in onsies twosies but I'm dealing with about ten different apps and the first one I look at has 43 instances of this scenario. So any.. instinct is to override NSDateFormatter with a version that 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.. make that an iPod Touch is set to Great Britain with the 12 24 switch set to 12. There's a clear difference in the two results and I judge the category version to be wrong. Note that the log in the category version IS getting executed and..
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 have the IMP you need to cast it to a function pointer that includes all of the details that ARC needs including the two implicit hidden arguments self and _cmd of every Objective C method call . This is handled in the third line the void on.. so requires a lot more typing and is also slower so there's little reason to do it. 1 All Objective C methods have two hidden arguments self and _cmd that are implicitly added when you call a method. 2 Actually it's possible for it to get.. 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..
http://stackoverflow.com/questions/1080043/how-to-disable-multitouch setText @ One or whatever you want to do else if sender two one.enabled false three.enabled false label setText @ Two or whatever you want to do else one.enabled false two.enabled false label setText @ Three or whatever you want to do hook..
Drop Shadow on UITextField text http://stackoverflow.com/questions/1274168/drop-shadow-on-uitextfield-text improve this question I don't think you get built in support for text shadows here the way you do with UILabel . Two ideas 1 Moderately tricky to code. Add a second UITextField behind the original at a very small offset maybe by 0.2 0.8..
http://stackoverflow.com/questions/13579209/two-colors-for-uilabel-text colors for UILabel TEXT I want to set two colors for UILabel's text. I tried TTTRegexAttributedLabel but it is throwing..
How to use UIProgressView while loading of a UIWebView? http://stackoverflow.com/questions/1900151/how-to-use-uiprogressview-while-loading-of-a-uiwebview you're going to init the webview with data instead of a URL in your connection didFinishLoading delegate method . Two caveats It is possible that the expectedContentLength property of the NSURLResponse is going to be 1 NSURLReponseUnknownLength..
IOS 7 Navigation Bar text and arrow color http://stackoverflow.com/questions/19029833/ios-7-navigation-bar-text-and-arrow-color Behavior from some of the properties of UINavigationBar has changed from iOS 7 . You can see in the image shown below Two beautiful links I'd like to share with you. For more details you can go through these links iOS 7 UI Transition Guide ...
Single-Stage vs Two-Stage Animation for iPhone Apps? http://stackoverflow.com/questions/2048781/single-stage-vs-two-stage-animation-for-iphone-apps Stage vs Two Stage Animation for iPhone Apps What are single state and two stage animation for rotating an iPhone window This is the..
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 key array string com.sunsetlakesoftware.molecules.pdb string string org.gnu.gnu zip archive string array dict array Two images are provided that will be used as icons for the supported types in Mail and other applications capable of showing..
Core Data: Error, “Can't Merge Models With Two Different Entities Named 'foo' ” http://stackoverflow.com/questions/3205783/core-data-error-cant-merge-models-with-two-different-entities-named-foo Data Error &ldquo Can't Merge Models With Two Different Entities Named 'foo' &rdquo I'm working on an iPhone app that uses Core Data. Most times I just test in the simulator..
UITextView with Syntax Highlighting [duplicate] http://stackoverflow.com/questions/3642540/uitextview-with-syntax-highlighting basic text replacements. Problem text input only badly documented. No text selection etc see above . So here we are. Two fully functional components that lack a central function and two partial solutions that lack the missing link. Here are..
problem with “this class is not key value coding-compliant” http://stackoverflow.com/questions/3760803/problem-with-this-class-is-not-key-value-coding-compliant yet to create it and dequeue is passing nil back so even pass cell as the owner is still essentially passing nil . Two options Instantiate a new cell in your cellForRowAtIndexPath NSIndexPath indexPath implementation and pass that new cell..
http://stackoverflow.com/questions/5237941/ios-take-picture setting the showsCameraControls property to NO and setting the cameraOverlayView property to your own custom controls. Two available in iOS 4.0 is to configure an AVCaptureSession providing it with an AVCaptureDeviceInput using the appropriate..
Proper way to instantiate an NSDecimalNumber from float or double http://stackoverflow.com/questions/5304855/proper-way-to-instantiate-an-nsdecimalnumber-from-float-or-double floating point numbers. So how do you call these initialisers easily when you have a double float or other NSNumber Two methods described here work but still have precision issues. If you already have the number stored as an NSNumber then this..
What is objc_setAssociatedObject() and in what cases should it be used? http://stackoverflow.com/questions/5909412/what-is-objc-setassociatedobject-and-in-what-cases-should-it-be-used association between an array and a string static char overviewKey NSArray array NSArray alloc initWithObjects @ One @ Two @ Three nil For the purposes of illustration use initWithFormat to ensure the string can be deallocated NSString overview..
How can I change the image displayed in an UIImageView programmatically? http://stackoverflow.com/questions/706240/how-can-i-change-the-image-displayed-in-an-uiimageview-programmatically to a UIImageView already then all you have to do is grab an image and call setImage on the receiver UIImageView . Two examples of grabbing an image are below. One from the Web and one you add to your Resources folder in Xcode. UIImage image..
What exactly does delegate do in xcode ios project? http://stackoverflow.com/questions/7215698/what-exactly-does-delegate-do-in-xcode-ios-project head around how to think about it ahead of the technical details is important. Simply put a delegate is a callback. Two main scenarios to use delegates A class or control wants to abstract out the details on how to do work like retrieve data..
http://stackoverflow.com/questions/7465713/how-to-detect-iap-crackers fortunately if you already have a verification server set up you should be able to do this without updating your app Two new requirements 1 Check that the product IDs both the application ID and the IAP product one in the decrypted receipt you..
iOS Pinch Scale and Two Finger Rotate at same time http://stackoverflow.com/questions/8108768/ios-pinch-scale-and-two-finger-rotate-at-same-time Pinch Scale and Two Finger Rotate at same time Here is my code viewDidLoad UIPinchGestureRecognizer pinch UIPinchGestureRecognizer alloc initWithTarget..
Simulating location changes for `startMonitoringSignificantLocationChanges` http://stackoverflow.com/questions/8541973/simulating-location-changes-for-startmonitoringsignificantlocationchanges instead. This makes it way easier to test location enabled applications without taking the device out into the field. Two questions What is the difference between these two How do I use iOS Simulator and or Xcode 4 to simulate a series of location..
how to use sendAsynchronousRequest:queue:completionHandler: http://stackoverflow.com/questions/9270447/how-to-use-sendasynchronousrequestqueuecompletionhandler to use sendAsynchronousRequest queue completionHandler Two part question Part one I am trying to create an ASynchronous request to my database. I am currently doing it Synchronously..
Basic HTTP Authentication on iPhone http://stackoverflow.com/questions/993409/basic-http-authentication-on-iphone into my app Cheers iphone objective c httpwebrequest http authentication share improve this question Two things. Firstly you have to use the async methods rather than the synchronous class method. NSURLRequest theRequest NSURLRequest..
iCarousel stop at user picked index http://stackoverflow.com/questions/10767569/icarousel-stop-at-user-picked-index iCarousel . In my iCarousel view there are two slots Slot1 and Slot2 . Below is my iCarouselView The box is where the TWO carousel is This is how I spin my iCarousel IBAction spin carousel1 scrollByNumberOfItems 35 duration 10.7550f carousel2..
iPhone: Handle two(or multiple) responses for two requests in the same delegate http://stackoverflow.com/questions/9237842/iphone-handle-twoor-multiple-responses-for-two-requests-in-the-same-delegate same delegate I am calling NSURLConnection asynchronous method calls in my view controller. I would like to handle TWO RESPONSES FOR TWO REQUEST in the same Delegate. Please suggest me what would the best approach to achieve this I'm developing.. I am calling NSURLConnection asynchronous method calls in my view controller. I would like to handle TWO RESPONSES FOR TWO REQUEST in the same Delegate. Please suggest me what would the best approach to achieve this I'm developing in iOS 5 SDK... NSURLConnection connection NSData responseData NSData alloc initWithData appendData HOW CAN WE HANDLE TWO RESPONSES FOR TWO REQUEST in the same Delegate if responseData doing something Class B ServerConnection NSURLConnection..
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