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2014/10/15 ¤U¤È 10:12:17
iphone Programming Glossary: occurobjective c - Detect when user change the app's notifications settings http://stackoverflow.com/questions/10191006/objective-c-detect-when-user-change-the-apps-notifications-settings user change the settings later during the app life time Is there some delegate method that get called when a change occur with this settings iphone objective c push notification apple push notifications appsettings share improve this question..
How do I fix NSURLErrorDomain error -999 in iPhone 3.0 OS http://stackoverflow.com/questions/1024748/how-do-i-fix-nsurlerrordomain-error-999-in-iphone-3-0-os question I was able to find the answer here . This thread contained this description for this error This error may occur if an another request is made before the previous request of WebView is completed... I worked around this by ignoring this..
Detect when home button is pressed iOS http://stackoverflow.com/questions/10324596/detect-when-home-button-is-pressed-ios UIApplication application Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions such as an incoming phone call or SMS message or when the user quits the application..
UIView's frame, bounds, center, origin, when to use what? http://stackoverflow.com/questions/1071112/uiviews-frame-bounds-center-origin-when-to-use-what this is the property you will likely focus on for sprite based games and animations where movement or scaling may occur. By default animation and rotation will be based on the center of the UIView. It rarely makes sense to try and manage such..
UIStringDrawing methods don't seem to be thread safe in iOS 6 http://stackoverflow.com/questions/12744558/uistringdrawing-methods-dont-seem-to-be-thread-safe-in-ios-6 methods were thread safe from iOS 4. I expect that these loops should complete with no errors. The crash occurs when running on an iPhone running iOS 6 tested on iPhone 5 but does NOT occur when running on an iPhone running iOS 5 tested.. complete with no errors. The crash occurs when running on an iPhone running iOS 6 tested on iPhone 5 but does NOT occur when running on an iPhone running iOS 5 tested on iPhone 4 or the simulator tested with iOS 6 . I have implemented what..
iOS 6 shouldAutorotate: is NOT being called http://stackoverflow.com/questions/12775265/ios-6-shouldautorotate-is-not-being-called will not fire. I need to do some image swapping on rotate but I can't get any indication that a rotation is about to occur. Thanks in advance. iphone ios cocoa touch rotation ios6 share improve this question That method is not the correct..
How can my server securely authenticate iPhone in-app purchase? http://stackoverflow.com/questions/1581246/how-can-my-server-securely-authenticate-iphone-in-app-purchase host of the same name as yours since they won't have your SSL certificate. Failure Considerations Since failure might occur between when the user's device gets the receipt and verifying it with your server for example if the user looses connectivity..
Single-Stage vs Two-Stage Animation for iPhone Apps? http://stackoverflow.com/questions/2048781/single-stage-vs-two-stage-animation-for-iphone-apps perform custom animations during an orientation change you can do so in one of two ways. Orientation changes used to occur in two steps with notifications occurring at the beginning middle and end points of the rotation. However in iPhone OS 3.0.. orientation change you can do so in one of two ways. Orientation changes used to occur in two steps with notifications occurring at the beginning middle and end points of the rotation. However in iPhone OS 3.0 support was added for performing orientation..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions touches are no longer recognized. A simple search for questions tagged iphone and landscape reveals these issues which occur under certain scenarios Landscape only iPhone app with multiple nibs App started in Landscape mode view from first nib is..
http://stackoverflow.com/questions/3712979/applicationwillenterforeground-vs-applicationdidbecomeactive-applicationwillre may be called multiple times after launch. This makes applicationWillEnterForeground ideal for setup that needs to occur just once after relaunch. applicationWillEnterForeground is called when app is relaunched before applicationDidBecomeActive..
Is there a way to make drawRect work right NOW? http://stackoverflow.com/questions/4739748/is-there-a-way-to-make-drawrect-work-right-now will also cause your touch handling to be unresponsive. This means that there is no way to force a UI refresh to occur from some other point in a process running on the main thread. The previous statement is not entirely correct as Tom's answer..
UIView with rounded corners and drop shadow? http://stackoverflow.com/questions/4754392/uiview-with-rounded-corners-and-drop-shadow shadow with no lighting effect . I can do each of those one by one but the usual clipToBounds maskToBounds conflicts occur. iphone ios cocoa touch uiview rounded corners share improve this question The following code snippet adds a border..
Can somebody explain the process of a UIViewController birth (which method follows which)? http://stackoverflow.com/questions/5107604/can-somebody-explain-the-process-of-a-uiviewcontroller-birth-which-method-follo methods. 5. Putting it all together Because of the complexity there are many different ways for this process to occur but a normal timeline could look something like this viewController initWithNibname Bundle viewController awakeFromNib viewController..
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 view is loaded and displayed Something accesses your view controller's view property for the first time. This may occur in your own code or in UIKit in response to a user action like selecting a tab. UIKit lazy loads your view controller's..
UIModalTransitionStylePartialCurl with UITabBarController http://stackoverflow.com/questions/6873903/uimodaltransitionstylepartialcurl-with-uitabbarcontroller . To dismiss the view simply self.contentVC dismissModalViewControllerAnimated YES . Some strangeness seems to occur with the frame of contentVC when the modal view is dismissed so I manually reset the frame when the modal view is dismissed...
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 value being retained released and crash. Additional Arguments One consideration is that this is the same warning will occur with performSelector withObject and you could run into similar problems with not declaring how that method consumes parameters...
Retain Cycles: Why is that such a bad thing? http://stackoverflow.com/questions/791322/retain-cycles-why-is-that-such-a-bad-thing aren't bad but they are often avoided because they can make it tricky to ensure you haven't got memory leaks. Leaks occur especially when objects are 'reference counted'. In a language or system that uses reference counting an object keeps track.. said this takes careful management. It's very easy to get wrong. This is one of the main reasons that memory leaks occur. To avoid the risk of leaks and the tricky job of breaking cycles correctly when you no longer need a group of objects programmers..
http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su is in portrait orientation. This is b c view transition animations that replace a view w a different view must occur with views at least a level below the first view added to the window e.g. window.rootViewController.view.anotherView . I've..
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