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2014/10/15 ¤U¤È 10:13:15
iphone Programming Glossary: rememberhttp://stackoverflow.com/questions/402/iphone-app-in-landscape-mode to swap between MORE THAN ONE view all landscape IT SIMPLY DOES NOT WORK . It is essential to remember this or you will waste days on the problem. It is literally NOT POSSIBLE. It is the biggest open known..
How to build a framework or library for other developers, the secure way? http://stackoverflow.com/questions/4065052/how-to-build-a-framework-or-library-for-other-developers-the-secure-way
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll Does the predicate have to contain the initial predicate as well as the search terms or does it remember that it used a predicate to retrieve data in the first place How do I get back to the original results..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events which will restart your background process With this PingPong I can do a lot of backgrounding. but remember be very spare with CPU time. And save all data to restore your views your app will be terminated some..
OpenGL Texture Coordinates in Pixel Space http://stackoverflow.com/questions/5879403/opengl-texture-coordinates-in-pixel-space coordinate is 2i 1 2N However if you want to perfectly align your texture with the screen pixels remember that what you specify as coordinates are not a quad's pixels but edges which depending on projection..
How to programmatically determine iPhone interface orientation? http://stackoverflow.com/questions/634745/how-to-programmatically-determine-iphone-interface-orientation the device is returning ambiguous information I suppose I could track orientation change events to remember the last portrait landscape orientation or check the main UIView's bounds height and width but that..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud I added a category to UIImage to fix that header omitted Before you waste time editing this please remember that a semi colon at the end of a method definition is valid and a matter of style. UIImage imageFromMainBundleFile..
http://stackoverflow.com/questions/402/iphone-app-in-landscape-mode the ADDITIONAL well known problem at hand here if you are trying to swap between MORE THAN ONE view all landscape IT SIMPLY DOES NOT WORK . It is essential to remember this or you will waste days on the problem. It is literally NOT POSSIBLE. It is the biggest open known bug on the iOS platform. There is literally no way to make..
How to build a framework or library for other developers, the secure way? http://stackoverflow.com/questions/4065052/how-to-build-a-framework-or-library-for-other-developers-the-secure-way
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll the predicate in the handleSearchForTerm searchString method Does the predicate have to contain the initial predicate as well as the search terms or does it remember that it used a predicate to retrieve data in the first place How do I get back to the original results Do I just set the search predicate to nil Won't that kill..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events one of the others the system restarts the app in background which will restart your background process With this PingPong I can do a lot of backgrounding. but remember be very spare with CPU time. And save all data to restore your views your app will be terminated some time later. To make it appear still running you must jump..
OpenGL Texture Coordinates in Pixel Space http://stackoverflow.com/questions/5879403/opengl-texture-coordinates-in-pixel-space generally for pixel i in a N wide texture the proper texture coordinate is 2i 1 2N However if you want to perfectly align your texture with the screen pixels remember that what you specify as coordinates are not a quad's pixels but edges which depending on projection may align with screen pixel edges not centers thus may require..
How to programmatically determine iPhone interface orientation? http://stackoverflow.com/questions/634745/how-to-programmatically-determine-iphone-interface-orientation to find the current orientation of the GUI in cases where the device is returning ambiguous information I suppose I could track orientation change events to remember the last portrait landscape orientation or check the main UIView's bounds height and width but that seems kludgey. Is there a property on the device or UIView that..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud people overuse it and get upset when it simply does its job I added a category to UIImage to fix that header omitted Before you waste time editing this please remember that a semi colon at the end of a method definition is valid and a matter of style. UIImage imageFromMainBundleFile NSString aFileName NSString bundlePath NSBundle..
http://stackoverflow.com/questions/1816144/uipagecontrol-help are pretty complicated. All I need are 3 pages with different views for each of them. Can anyone help me out here P.S. remember that I'm a beginner D thanks iphone cocoa touch uikit share improve this question Here is a nice example from Cocoa..
How to search MKMapView with UISearchBar? http://stackoverflow.com/questions/2281798/how-to-search-mkmapview-with-uisearchbar
Handling applicationDidBecomeActive http://stackoverflow.com/questions/3639859/handling-applicationdidbecomeactive name UIApplicationDidBecomeActiveNotification object nil Don't forget to clean up after yourself In dealloc remember to remove yourself as the observer NSNotificationCenter defaultCenter removeObserver self More information about the Notification..
How do I open the Settings application from my application? http://stackoverflow.com/questions/377102/how-do-i-open-the-settings-application-from-my-application open the section in settings for my app. If that's not possible opening settings is better than nothing. I vaguely remember that the iPhone jailbreaking people had figured out a way to launch settings or other apps via a funny URL or phone number..
http://stackoverflow.com/questions/402/iphone-app-in-landscape-mode here if you are trying to swap between MORE THAN ONE view all landscape IT SIMPLY DOES NOT WORK . It is essential to remember this or you will waste days on the problem. It is literally NOT POSSIBLE. It is the biggest open known bug on the iOS platform...
How to build a framework or library for other developers, the secure way? http://stackoverflow.com/questions/4065052/how-to-build-a-framework-or-library-for-other-developers-the-secure-way
Can the UI Automation instrument be run from the command line? http://stackoverflow.com/questions/4191945/can-the-ui-automation-instrument-be-run-from-the-command-line this path might be different for anyone else depending on what iOS version are you running on your simulator. Also remember to put this path in double quotation marks. The path_to_script.js should be the FULL PATH to where your automation script.. The path_to_script.js should be the FULL PATH to where your automation script written in javascript is saved. Also remember to put this path in double quotation marks. Lastly output results path is the path where you want to save the output results... path in double quotation marks. Lastly output results path is the path where you want to save the output results. Also remember to put this path in double quotation marks. These were the points I had been missing on and thus was getting some of the..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll searchString method Does the predicate have to contain the initial predicate as well as the search terms or does it remember that it used a predicate to retrieve data in the first place How do I get back to the original results Do I just set the..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events app in background which will restart your background process With this PingPong I can do a lot of backgrounding. but remember be very spare with CPU time. And save all data to restore your views your app will be terminated some time later. To make..
Creating a JSON Store For iPhone http://stackoverflow.com/questions/5237943/creating-a-json-store-for-iphone core data persistence store share improve this question When deciding what persistence to use it's important to remember that Core Data is first and foremost an object graph management system. It true function is to create the runtime model..
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 this. You'll see clearly named functions in backtraces. Still swizzling can be difficult to debug because it's hard to remember what impact the swizzling is having. Document your code well even if you think you're the only one who will ever see it..
http://stackoverflow.com/questions/5360846/suspend-the-application controls are familiar and predictable. And when actions are simple and straightforward users can easily understand and remember them. People expect to have ample opportunity to cancel an operation before it begins and they expect to get a chance to..
OpenGL Texture Coordinates in Pixel Space http://stackoverflow.com/questions/5879403/opengl-texture-coordinates-in-pixel-space the proper texture coordinate is 2i 1 2N However if you want to perfectly align your texture with the screen pixels remember that what you specify as coordinates are not a quad's pixels but edges which depending on projection may align with screen..
How to programmatically determine iPhone interface orientation? http://stackoverflow.com/questions/634745/how-to-programmatically-determine-iphone-interface-orientation GUI in cases where the device is returning ambiguous information I suppose I could track orientation change events to remember the last portrait landscape orientation or check the main UIView's bounds height and width but that seems kludgey. Is there..
Why am I having to manually set my view's frame in viewDidLoad? http://stackoverflow.com/questions/6757018/why-am-i-having-to-manually-set-my-views-frame-in-viewdidload to know the size of your view's frame before it gets presented viewWillAppear is your one and only opportunity. Just remember that this size may change after the view appears for various reasons including rotation events or changes in status bar..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud simply does its job I added a category to UIImage to fix that header omitted Before you waste time editing this please remember that a semi colon at the end of a method definition is valid and a matter of style. UIImage imageFromMainBundleFile NSString..
http://stackoverflow.com/questions/9975562/how-to-pause-play-nstimer previousFireDate pauseStart release previousFireDate release I used a UIButton and used this code when clicked. remember to put this NSDate pauseStart previousFireDate in your .h file EDIT here is the countUp method. forget the down method...
Optimizing CLLocationManager/CoreLocation to retrieve data points faster on the iPhone http://stackoverflow.com/questions/1081219/optimizing-cllocationmanager-corelocation-to-retrieve-data-points-faster-on-the is not going to do it. Three attempts after initialization usually gets you to within 47 or so meters which is good. Remember that each successive attempt is going to take longer and longer to improve your accuracy thus it gets expensive quickly...
http://stackoverflow.com/questions/1106943/nscalendar-first-day-of-week inUnit NSWeekCalendarUnit forDate NSDate date NSLog @ Adjusted weekday ordinal d adjustedWeekdayOrdinal Remember the ordinals for weekdays start at 1 for the first day of the week not zero. Documentation link . share improve this answer..
Any quick and dirty anti-aliasing techniques for a rotated UIImageView? http://stackoverflow.com/questions/1136110/any-quick-and-dirty-anti-aliasing-techniques-for-a-rotated-uiimageview anti aliased with the background. iphone cocoa touch uiimageview uiimage antialiasing share improve this question Remember to set the appropriate anti alias options CGContextSetAllowsAntialiasing theContext true CGContextSetShouldAntialias theContext..
How To Build and Compile PJSIP for Xcode, Using sample code IPJSUA to test? http://stackoverflow.com/questions/11848333/how-to-build-and-compile-pjsip-for-xcode-using-sample-code-ipjsua-to-test will looks like this. DEVPATH Applications Xcode.app Contents Developer Platforms iPhoneSimulator.platform Developer Remember this refer to your Xcode. If you want to make sure go to finder applications xcode show package contents. I also hardcoded..
iPhone - What are reuseIdentifiers (UITableViewCell)? http://stackoverflow.com/questions/2152180/iphone-what-are-reuseidentifiers-uitableviewcell UITableViewCellStyleDefault reuseIdentifier CellIdentifier autorelease NSLog @ new one else NSLog @ old one Remember you only want dequeueReusableCellWithIdentifier to return a cell if it is applicable. So if a cell is going to be reused..
iPhone web service calls to WCF Service with Certificate Authentication http://stackoverflow.com/questions/2244764/iphone-web-service-calls-to-wcf-service-with-certificate-authentication and specifically the documentation on Over the Air Enrollment so that you can install the certificates on the devices. Remember anything is possible and don't be afraid to use one of those Apple support tickets that come with the program EDIT I completely..
How can I send mail from an iPhone application http://stackoverflow.com/questions/310946/how-can-i-send-mail-from-an-iphone-application error NSError error if result MFMailComposeResultSent NSLog @ It's away self dismissModalViewControllerAnimated YES Remember to check if the device is configured for sending email if MFMailComposeViewController canSendMail Show the composer else..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received can take a little while before you really internalise the memory management rules unless you make a big point of it. Remember anything you get from an allocation function usually the static alloc method but there are a few others or a copy method..
How do you use NSAttributedString? http://stackoverflow.com/questions/3482346/how-do-you-use-nsattributedstring using NSAttributedString how do I make the following if not possible with NSAttributed string how would you do it Edit Remember @ first @ second and @ third will be replaced by other strings at any time. So using hardcoded NSRange values won't work...
How should I architect my iPhone app to talk to my website? http://stackoverflow.com/questions/3943597/how-should-i-architect-my-iphone-app-to-talk-to-my-website much faster for the user. To save the time and bandwidth consider using HTTP's If Modified Since and or ETag headers. Remember the time or tag when you requested the data the last time and next time send it in HTTP's header. Your web application should..
http://stackoverflow.com/questions/4973244/how-does-testflight-do-it The technique stemmed out of the enterprise distribution mechanism. Since 4.0 devices have supported install from web. Remember you still need to sign the beta distribution for a select set of UDIDs you can't just willy nilly install it on any device...
Creating a JSON Store For iPhone http://stackoverflow.com/questions/5237943/creating-a-json-store-for-iphone and then use a mapper to import the JSON into it. Do you mean actual abstract entities here or just managed objects Remember entities are to managed objects what classes are to instances. If the former then yes Core Data will be a lot of work up.. if the later then it won't be. You can build up very large complex graphs with just two or three related entities. Remember also that you can use configuration to put different entities into different stores even if they all share a single context..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request NSURLResponse response error NSError error This returns a NSData variable that you can process. IMPORTANT Remember to kick off the synchronous request in a separate thread to avoid blocking the UI. Asynchronously void start Don't forget..
How to protect app IPA from hacks if reverse engineering is possible http://stackoverflow.com/questions/6939222/how-to-protect-app-ipa-from-hacks-if-reverse-engineering-is-possible of that URL alone poses a security threat then your whole approach and your clients API is inherently insecure. Remember that such information could possibly be captured by a man in the middle attack and other modes of attack as well. Avoid..
iPhone Watermark on recorded Video. http://stackoverflow.com/questions/7205820/iphone-watermark-on-recorded-video you have processed to a video for a given duration. This should get you well on your way to watermarking your videos. Remember to practice good memory management because leaking images that are coming in at 20 30fps is a great way to crash the app...
What options are available to accept credit card payments through an iPhone? [closed] http://stackoverflow.com/questions/805324/what-options-are-available-to-accept-credit-card-payments-through-an-iphone just follow the documentation And you can always add 5 dollars more to cover the 30 on what are you trying to sell. Remember that if you have a lower price you will have much more buyers and you can have much more profit that a few buyers with a..
UIButton can't be touched while animated with UIView animateWithDuration http://stackoverflow.com/questions/8346100/uibutton-cant-be-touched-while-animated-with-uiview-animatewithduration initial touch rather than the touch ending which is typically when a tap would register but the principle is the same. Remember to import the QuartzCore framework and add it to your project. void touchesBegan NSSet touches withEvent UIEvent event UITouch..
Secure https encryption for iPhone app to webpage http://stackoverflow.com/questions/9181186/secure-https-encryption-for-iphone-app-to-webpage C libraries Obfuscating Cocoa EDIT I wanted to point out one thing about my mention of shared secret over SSL. Remember that if you don't verify the certificate you are subject to very easy man in the middle attacks. Readily available proxies..
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