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2014/10/15 ¤U¤È 10:14:18
iphone Programming Glossary: somewhere@synthesize vs @dynamic, what are the differences? http://stackoverflow.com/questions/1160498/synthesize-vs-dynamic-what-are-the-differences tells the compiler that the getter and setter methods are implemented not by the class itself but somewhere else like the superclass or will be provided at runtime . Uses for @dynamic are e.g. with subclasses..
How can I upload a photo to a server with the iPhone? http://stackoverflow.com/questions/125306/how-can-i-upload-a-photo-to-a-server-with-the-iphone it to a server. How do I upload a photo to a server with Cocoa in Xcode I suppose I use NSUrl somewhere. Thanks iphone cocoa touch cocoa networking share improve this question Header @interface EPUploader..
Resizing UIimages pulled from the Camera also ROTATES the UIimage? http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage assigning it to the UIImageView the image is resizing as expected but there IS a problem in that somewhere in the RESIZING code my UIImage is getting ROTATED... As a result when I assign the resized UIImage..
http://stackoverflow.com/questions/1388467/reading-epub-format 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..
http://stackoverflow.com/questions/1861656/iphone-reachability-checking have the errors you listed they changed the API and you are probably using sample code you found somewhere else. Try in .h file import Reachability class #import Reachability.h declare Reachability you no longer..
Observing pinch multi-touch gestures in a UITableView http://stackoverflow.com/questions/2003201/observing-pinch-multi-touch-gestures-in-a-uitableview that class change the class of your UIWindow in your MainWindow.xib to EventInterceptWindow then somewhere set the eventInterceptDelegate to a view controller that you want to intercept events. Example that..
iPhone sending POST with NSURLConnection http://stackoverflow.com/questions/2071788/iphone-sending-post-with-nsurlconnection NSLog @ responseData @ responseData now is just instead of theData . Probably some lame mistake somewhere but I can't seem to find it Any ideas iphone post nsurlconnection share improve this question Your..
Send and receive messages through NSNotificationCenter in Objective-C? [closed] http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c isEqualToString @ TestNotification NSLog @ Successfully received the test notification @end ... somewhere else in another class ... void someMethod All instances of TestClass will be notified NSNotificationCenter..
Cocoa Graphing/Plotting Framework that Works on iPhoneOS [closed] http://stackoverflow.com/questions/263472/cocoa-graphing-plotting-framework-that-works-on-iphoneos Stocks app . I realize I could buckle down and do some Quartz drawing but I'm hoping that someone somewhere has a tip on a Cocoa graphing framework that works on iPhoneOS. Any suggestions It would be a shame..
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 or both of these problems In your previously working xCode iPhone project you get Base SDK Missing somewhere. Something like this In a related but more general observation none of the previously available panoply..
Play sound on iPhone even in silent mode http://stackoverflow.com/questions/3740528/play-sound-on-iphone-even-in-silent-mode if you play music or sounds then iPod playback will be paused. Once this has been done probably somewhere in the initialisation of one of your classes that plays the sounds you can instanciate sounds like this..
How do I reset after a UIScrollView zoom? http://stackoverflow.com/questions/448285/how-do-i-reset-after-a-uiscrollview-zoom than tell you to check and make sure you aren't unintentionally autoreleasing a view or layer somewhere within your code. I've seen the simulator handle the timing of autoreleases differently than on the..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events better to move dispatch_block_t expirationHandler into your headerfile and initialize the code somewhere else i.e. void applicationDidFinishLaunching UIApplication application expirationHandler ^ ... because..
UIImagePickerController camera preview is portrait in landscape app http://stackoverflow.com/questions/538041/uiimagepickercontroller-camera-preview-is-portrait-in-landscape-app is more ridiculous than you might think. I had the same problem and found a solution in a forum somewhere. Pass your taken image into a method like this Code from http discussions.apple.com thread.jspa messageID..
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview it for reference. You still have two options. This whole thing is a method which you are calling somewhere. You don't need to create the images inside it this reduces the reusability of the method to zero. To..
http://stackoverflow.com/questions/6124109/instance-variables-with-underscore-in-objective-c-2-0-and-renaming-with-synthet in the beginning of learning. Perhaps I'm doing something wrong and have a bad coding practice somewhere. Thanks you in advance if you can help me iphone objective c osx static analysis instance variables..
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..
Having trouble adding objects to NSMutableArray in Objective C http://stackoverflow.com/questions/851926/having-trouble-adding-objects-to-nsmutablearray-in-objective-c share improve this question Have you initialized your viewedCardsArray If not you need to somewhere this is usually done in the init method for your class id init self super init if self viewedCardsArray..
@synthesize vs @dynamic, what are the differences? http://stackoverflow.com/questions/1160498/synthesize-vs-dynamic-what-are-the-differences getter and setter methods for your property. @dynamic just tells the compiler that the getter and setter methods are implemented not by the class itself but somewhere else like the superclass or will be provided at runtime . Uses for @dynamic are e.g. with subclasses of NSManagedObject CoreData or when you want to create an outlet..
How can I upload a photo to a server with the iPhone? http://stackoverflow.com/questions/125306/how-can-i-upload-a-photo-to-a-server-with-the-iphone I'm writing an iPhone app that takes a photo and then uploads it to a server. How do I upload a photo to a server with Cocoa in Xcode I suppose I use NSUrl somewhere. Thanks iphone cocoa touch cocoa networking share improve this question Header @interface EPUploader NSObject NSURL serverURL NSString filePath id delegate..
Resizing UIimages pulled from the Camera also ROTATES the UIimage? http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage However when I attempt to RESIZE the retrieved UIImage before assigning it to the UIImageView the image is resizing as expected but there IS a problem in that somewhere in the RESIZING code my UIImage is getting ROTATED... As a result when I assign the resized UIImage to a UIImageView the image is rotated 90 degrees and appears..
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 the relevant content. Some pointers if you're just starting out parse xml unzip To display content just use a UIWebView..
http://stackoverflow.com/questions/1861656/iphone-reachability-checking But looking at the most recent version I can see why you have the errors you listed they changed the API and you are probably using sample code you found somewhere else. Try in .h file import Reachability class #import Reachability.h declare Reachability you no longer have a singleton but manage instances Reachability reachability..
Observing pinch multi-touch gestures in a UITableView http://stackoverflow.com/questions/2003201/observing-pinch-multi-touch-gestures-in-a-uitableview interceptEvent event NO super sendEvent event @end Create that class change the class of your UIWindow in your MainWindow.xib to EventInterceptWindow then somewhere set the eventInterceptDelegate to a view controller that you want to intercept events. Example that intercepts a double tap BOOL interceptEvent UIEvent event NSSet..
iPhone sending POST with NSURLConnection http://stackoverflow.com/questions/2071788/iphone-sending-post-with-nsurlconnection for me in the past but for some reason the output I get from NSLog @ responseData @ responseData now is just instead of theData . Probably some lame mistake somewhere but I can't seem to find it Any ideas iphone post nsurlconnection share improve this question Your data is wrong. If you expect the data to be found in the..
Send and receive messages through NSNotificationCenter in Objective-C? [closed] http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c of other notifications as well. if notification name isEqualToString @ TestNotification NSLog @ Successfully received the test notification @end ... somewhere else in another class ... void someMethod All instances of TestClass will be notified NSNotificationCenter defaultCenter postNotificationName @ TestNotification..
Cocoa Graphing/Plotting Framework that Works on iPhoneOS [closed] http://stackoverflow.com/questions/263472/cocoa-graphing-plotting-framework-that-works-on-iphoneos data graphing to a new iPhone app in development ala the Stocks app . I realize I could buckle down and do some Quartz drawing but I'm hoping that someone somewhere has a tip on a Cocoa graphing framework that works on iPhoneOS. Any suggestions It would be a shame to re invent the wheel if it's out there. iphone cocoa cocoa..
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 SDK 4 download link reg reqd and then encountered one or both of these problems In your previously working xCode iPhone project you get Base SDK Missing somewhere. Something like this In a related but more general observation none of the previously available panoply of Device or Simulator SDK choices e.g. 3.0 3.1 3.1.3 .....
Play sound on iPhone even in silent mode http://stackoverflow.com/questions/3740528/play-sound-on-iphone-even-in-silent-mode error nil should do the trick. Note if you play music or sounds then iPod playback will be paused. Once this has been done probably somewhere in the initialisation of one of your classes that plays the sounds you can instanciate sounds like this probably an instance variable AVAudioPlayer player NSString..
How do I reset after a UIScrollView zoom? http://stackoverflow.com/questions/448285/how-do-i-reset-after-a-uiscrollview-zoom improve this question I can't help you with the crashing other than tell you to check and make sure you aren't unintentionally autoreleasing a view or layer somewhere within your code. I've seen the simulator handle the timing of autoreleases differently than on the device most often when threads are involved . The view scaling..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events UIApplication app UIApplication sharedApplication it's better to move dispatch_block_t expirationHandler into your headerfile and initialize the code somewhere else i.e. void applicationDidFinishLaunching UIApplication application expirationHandler ^ ... because your app may crash if you initialize expirationHandler twice...
UIImagePickerController camera preview is portrait in landscape app http://stackoverflow.com/questions/538041/uiimagepickercontroller-camera-preview-is-portrait-in-landscape-app iphone cocoa touch share improve this question The answer is more ridiculous than you might think. I had the same problem and found a solution in a forum somewhere. Pass your taken image into a method like this Code from http discussions.apple.com thread.jspa messageID 7949889 UIImage scaleAndRotateImage UIImage image int..
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview provided your code I have added some numbers as comments to it for reference. You still have two options. This whole thing is a method which you are calling somewhere. You don't need to create the images inside it this reduces the reusability of the method to zero. To get your code working. Change the methods head 1. to UIImage..
http://stackoverflow.com/questions/6124109/instance-variables-with-underscore-in-objective-c-2-0-and-renaming-with-synthet practice or not. I'm not fresh in Objective C but I'm still in the beginning of learning. Perhaps I'm doing something wrong and have a bad coding practice somewhere. Thanks you in advance if you can help me iphone objective c osx static analysis instance variables share improve this question Is never used should be taken..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c 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 does in a category on NSObject. For..
Having trouble adding objects to NSMutableArray in Objective C http://stackoverflow.com/questions/851926/having-trouble-adding-objects-to-nsmutablearray-in-objective-c me so apologies in advance objective c iphone cocoa cocoa touch share improve this question Have you initialized your viewedCardsArray If not you need to somewhere this is usually done in the init method for your class id init self super init if self viewedCardsArray NSMutableArray alloc init return self Then it is released..
@synthesize vs @dynamic, what are the differences? http://stackoverflow.com/questions/1160498/synthesize-vs-dynamic-what-are-the-differences @dynamic just tells the compiler that the getter and setter methods are implemented not by the class itself but somewhere else like the superclass or will be provided at runtime . Uses for @dynamic are e.g. with subclasses of NSManagedObject..
How can I upload a photo to a server with the iPhone? http://stackoverflow.com/questions/125306/how-can-i-upload-a-photo-to-a-server-with-the-iphone a photo and then uploads it to a server. How do I upload a photo to a server with Cocoa in Xcode I suppose I use NSUrl somewhere. Thanks iphone cocoa touch cocoa networking share improve this question Header @interface EPUploader NSObject NSURL..
Resizing UIimages pulled from the Camera also ROTATES the UIimage? http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage UIImage before assigning it to the UIImageView the image is resizing as expected but there IS a problem in that somewhere in the RESIZING code my UIImage is getting ROTATED... As a result when I assign the resized UIImage to a UIImageView the..
http://stackoverflow.com/questions/1388467/reading-epub-format 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 out parse xml unzip..
http://stackoverflow.com/questions/1861656/iphone-reachability-checking I can see why you have the errors you listed they changed the API and you are probably using sample code you found somewhere else. Try in .h file import Reachability class #import Reachability.h declare Reachability you no longer have a singleton..
Observing pinch multi-touch gestures in a UITableView http://stackoverflow.com/questions/2003201/observing-pinch-multi-touch-gestures-in-a-uitableview event @end Create that class change the class of your UIWindow in your MainWindow.xib to EventInterceptWindow then somewhere set the eventInterceptDelegate to a view controller that you want to intercept events. Example that intercepts a double..
iPhone sending POST with NSURLConnection http://stackoverflow.com/questions/2071788/iphone-sending-post-with-nsurlconnection the output I get from NSLog @ responseData @ responseData now is just instead of theData . Probably some lame mistake somewhere but I can't seem to find it Any ideas iphone post nsurlconnection share improve this question Your data is wrong. If..
Send and receive messages through NSNotificationCenter in Objective-C? [closed] http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c if notification name isEqualToString @ TestNotification NSLog @ Successfully received the test notification @end ... somewhere else in another class ... void someMethod All instances of TestClass will be notified NSNotificationCenter defaultCenter..
Cocoa Graphing/Plotting Framework that Works on iPhoneOS [closed] http://stackoverflow.com/questions/263472/cocoa-graphing-plotting-framework-that-works-on-iphoneos development ala the Stocks app . I realize I could buckle down and do some Quartz drawing but I'm hoping that someone somewhere has a tip on a Cocoa graphing framework that works on iPhoneOS. Any suggestions It would be a shame to re invent the wheel..
iPhone : can we open pdf file using UIWebView? http://stackoverflow.com/questions/2832245/iphone-can-we-open-pdf-file-using-uiwebview this question Yes this can be done with the UIWebView. If you are trying to display a PDF file residing on a server somewhere you can simple load it to your web view directly UIWebView webView UIWebView alloc initWithFrame CGRectMake 10 10 200 200..
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 encountered one or both of these problems In your previously working xCode iPhone project you get Base SDK Missing somewhere. Something like this In a related but more general observation none of the previously available panoply of Device or Simulator..
Play sound on iPhone even in silent mode http://stackoverflow.com/questions/3740528/play-sound-on-iphone-even-in-silent-mode do the trick. Note if you play music or sounds then iPod playback will be paused. Once this has been done probably somewhere in the initialisation of one of your classes that plays the sounds you can instanciate sounds like this probably an instance..
How do I reset after a UIScrollView zoom? http://stackoverflow.com/questions/448285/how-do-i-reset-after-a-uiscrollview-zoom with the crashing other than tell you to check and make sure you aren't unintentionally autoreleasing a view or layer somewhere within your code. I've seen the simulator handle the timing of autoreleases differently than on the device most often when..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events sharedApplication it's better to move dispatch_block_t expirationHandler into your headerfile and initialize the code somewhere else i.e. void applicationDidFinishLaunching UIApplication application expirationHandler ^ ... because your app may crash..
UIImagePickerController camera preview is portrait in landscape app http://stackoverflow.com/questions/538041/uiimagepickercontroller-camera-preview-is-portrait-in-landscape-app question The answer is more ridiculous than you might think. I had the same problem and found a solution in a forum somewhere. Pass your taken image into a method like this Code from http discussions.apple.com thread.jspa messageID 7949889 UIImage..
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview as comments to it for reference. You still have two options. This whole thing is a method which you are calling somewhere. You don't need to create the images inside it this reduces the reusability of the method to zero. To get your code working...
http://stackoverflow.com/questions/6124109/instance-variables-with-underscore-in-objective-c-2-0-and-renaming-with-synthet C but I'm still in the beginning of learning. Perhaps I'm doing something wrong and have a bad coding practice somewhere. Thanks you in advance if you can help me iphone objective c osx static analysis instance variables share improve this..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c 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..
Having trouble adding objects to NSMutableArray in Objective C http://stackoverflow.com/questions/851926/having-trouble-adding-objects-to-nsmutablearray-in-objective-c iphone cocoa cocoa touch share improve this question Have you initialized your viewedCardsArray If not you need to somewhere this is usually done in the init method for your class id init self super init if self viewedCardsArray NSMutableArray alloc..
insertNewObjectForEntityForName: http://stackoverflow.com/questions/1780929/insertnewobjectforentityforname the problem. Most specifically it means you're probably not loading your MOM Managed Object Model that defines Person. Somewhere in your code you should have something like this managedObjectModel NSManagedObjectModel mergedModelFromBundles nil retain..
Selected UIButton disappears inside selected UITableViewCell http://stackoverflow.com/questions/2633603/selected-uibutton-disappears-inside-selected-uitableviewcell delegate for it and I have instance of UITableViewCell being created inside that method which I return. Somewhere in cellForRowAtIndexPath I also add UIButton to cell.contentView of that cell. It all works fine until I select that cell..
Is it possible to force ignore the :hover pseudoclass for iPhone/iPad users? http://stackoverflow.com/questions/2741816/is-it-possible-to-force-ignore-the-hover-pseudoclass-for-iphone-ipad-users class yui3 skin sam no touch ... body And have all CSS rules with hover below .no touch .no touch my hover color red Somewhere in the page I have javascript to remove no touch class from body. if 'ontouchstart' in document Y.one 'body' .removeClass..
NSNotificationCenter trapping and tracing all NSNotifications http://stackoverflow.com/questions/3725234/nsnotificationcenter-trapping-and-tracing-all-nsnotifications of any notifications happening within my application. Naïve as I am the first thing I tried was registering like this Somewhere in my app ... NSNotificationCenter defaultCenter addObserver self selector @selector traceNotifications name nil object..
MPMoviePlayer done button issue http://stackoverflow.com/questions/6142571/mpmovieplayer-done-button-issue on MPMoviePlayerDidExitFullscreenNotification as that notification gets sent once the user taps on the DONE Button. Somewhere in your initializer NSNotificationCenter defaultCenter addObserver self selector @selector MPMoviePlayerDidExitFullscreen..
thread 1 program received signal SIGABRT http://stackoverflow.com/questions/8085556/thread-1-program-received-signal-sigabrt is what the output box tells me. iphone ios4 memory error handling compiler errors share improve this question Somewhere in your code you use NSURL initFileURLWithPath but you pass a nil path value. Check your string. share improve this answer..
Box2d custom polygon and sprites mis-matching http://stackoverflow.com/questions/8710268/box2d-custom-polygon-and-sprites-mis-matching differences in the physics between retina and non retina devices but instead you need to fix your debug draw method. Somewhere there will be a line that ends new GLESDebugDraw PTM_RATIO change that to new GLESDebugDraw PTM_RATIO CC_CONTENT_SCALE_FACTOR..
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