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2014/10/15 ¤U¤È 10:10:14
iphone Programming Glossary: implicitlyObjective-C, cancel a dispatch queue using UI event http://stackoverflow.com/questions/10066897/objective-c-cancel-a-dispatch-queue-using-ui-event NSLog @ stopping cancelledPtr YES @end Alternatively use an ivar in your class to store the BOOL. The block will implicitly make a copy of self and will access the ivar via that. No need for __block . @interface SNViewController BOOL cancelled..
Weak references inside a block http://stackoverflow.com/questions/11603284/weak-references-inside-a-block
How to download In-App hosted content? http://stackoverflow.com/questions/12994550/how-to-download-in-app-hosted-content
does removefromsuperview releases the objects of scrollview? http://stackoverflow.com/questions/1340754/does-removefromsuperview-releases-the-objects-of-scrollview it's a very important concept in ObjC. You should never call release on an object you didn't retain explicitly or implicitly by calling one of the Three Magic Words . You don't call release in order to deallocate an object. You call it to release..
Animating a shape with CoreAnimation http://stackoverflow.com/questions/1767401/animating-a-shape-with-coreanimation this is a layer so you will need to add it as a sublayer of your UIView. Also I don't believe that the path property implicitly animates so you may need to manually create a CABasicAnimation to animate the change in shape from path 1 to path 2. EDIT..
A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7 http://stackoverflow.com/questions/19943183/a-complete-solution-to-locally-validate-an-in-app-receipts-and-bundle-receipts-o Verifying the receipt itself boils down to Checking that the receipt is valid PCKS7 and ASN1. We have done this implicitly already. Verifying that the receipt is signed by Apple. This was done before parsing the receipt and will be detailed below...
Difference between class property mVar and instance variable self.mVar http://stackoverflow.com/questions/2278389/difference-between-class-property-mvar-and-instance-variable-self-mvar property access syntax. It translates to an accessor message to the object in this case self . That is that statement implicitly translates to this message expression statement self setMName name Awkward accessor names like that are why œmName is a poor..
http://stackoverflow.com/questions/2537263/why-mkcoordinatespan-changes there's somewhat relevant phrase Changing only the center coordinate of the region can still cause the span to change implicitly. This is due to the fact that the distances represented by a span change at different latitudes and longitudes and the map..
How to avoid superclass methods getting overridden by sub class in objective - c http://stackoverflow.com/questions/2864273/how-to-avoid-superclass-methods-getting-overridden-by-sub-class-in-objective-c standard library classes are final for example java.lang.System and java.lang.String. All methods in a final class are implicitly final. How can I achieve this behavior in objective c iphone objective c cocoa cocoa touch share improve this question..
UIBarButtonItem icon white when added via IB, black when added programmatically http://stackoverflow.com/questions/3431961/uibarbuttonitem-icon-white-when-added-via-ib-black-when-added-programmatically but the rightBarButtonItem of a UINavigationItem just like the left is not allowed the UIBarButtonItemStylePlain. It's implicitly converted to UIBarButtonItemStyleBordered. In the bordered style the icon is rendered 'as is' which is black with a slight..
release Vs nil — Best Practice http://stackoverflow.com/questions/4220815/release-vs-nil-best-practice whatever foo was pointing at. However if your property was not declared to have retain storage semantics this will not implicitly release whatever foo was pointing at. Also as Ryan pointed out a property can be overridden to have side effects. For this..
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 the same image on an iPhone 4 as on the other iPhones. I'll bet either the iPhone 4 is applying a filter when you implicitly scale it up or just your brain is picking up on it being less sharp than everything around it. So I guess #import QuartzCore..
NSMutableString as retain/copy http://stackoverflow.com/questions/4995254/nsmutablestring-as-retain-copy a private class for several reasons. in either case copy write semantics to external clients and subclasses is not implicitly clear and the implementation is dangerous. sharing an NSMutableString is generally a bad design. NSMutableString is not..
http://stackoverflow.com/questions/6317631/obj-c-synthesize
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 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 id and you're..
How to detect that animation has ended on UITableView beginUpdates/endUpdates? http://stackoverflow.com/questions/7623771/how-to-detect-that-animation-has-ended-on-uitableview-beginupdates-endupdates That is they add the animations to any open CATransaction. If no open CATransaction exists the normal case then one is implicitly began which is ended at the end of the current runloop. But if you begin one yourself like is done here then it will use..
http://stackoverflow.com/questions/8548313/custom-navigation-bar I was wondering how to do a custom navigation bar like this. I mean how create the navigation bar once and reuse it implicitly for every view controllers. I was thinking about having a kind of root view controller and inherit for other view controllers..
Array nil (even when addObject:) [duplicate] http://stackoverflow.com/questions/8569495/array-nil-even-when-addobject NSIndexPath indexPath NSLog @ TOUCHED CELL Push the web view controller onto the navigation stack this implicitly creates the web view controller's view the first time through self navigationController pushViewController webViewController..
Pause button is stopping AVAudioPlayer rather than pausing http://stackoverflow.com/questions/8695193/pause-button-is-stopping-avaudioplayer-rather-than-pausing uitoolbar share improve this question If I'm following what your trying to do your problem is that you're implicitly starting timers to fire off the view display methods and expecting them to stop without any messages or logic. If so you're..
How to use UIBezierPath with CoreAnimation? http://stackoverflow.com/questions/9133610/how-to-use-uibezierpath-with-coreanimation If you ask for the property ™s value you continue to see the model value not what you see on the screen. If you try to implicitly animate the property afterward it won ™t work correctly because the CAAnimation is still running. If you ever remove the..
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