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2014/10/15 ¤U¤È 10:05:42
iphone Programming Glossary: counterWhere to place the “Core Data Stack” in a Cocoa/Cocoa Touch application http://stackoverflow.com/questions/1267520/where-to-place-the-core-data-stack-in-a-cocoa-cocoa-touch-application Summary There is no need to create a singleton to manage the Core Data stack indeed doing so is likely to be counter productive. The Core Data stack happens to be created by the application delegate. Importantly however as all the examples..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees to Rotate a UIImage 90 degrees I have a UIImage that is UIImageOrientationUp portrait that I would like to rotate counter clockwise by 90 degrees to landscape . I don't want to use a CGAffineTransform. I want the pixels of the UIImage to actually..
Objective-C 101 (retain vs assign) NSString http://stackoverflow.com/questions/1380338/objective-c-101-retain-vs-assign-nsstring name and not @property nonatomic assign NSString name I understand that assign will not increment the reference counter as retain will do. But why use retain since name is a member of the todo object the scope of it is to itself. No other external..
Delayed UIImageView Rendering in UITableView http://stackoverflow.com/questions/1826913/delayed-uiimageview-rendering-in-uitableview connection start Note that you have to specify startImmediately NO in the initializer which seems to run counter to Apple's documentation that suggests you can change run loop modes even after it has started. share improve this answer..
FFmpeg on iPhone - Modifying Video Orientation http://stackoverflow.com/questions/2208522/ffmpeg-on-iphone-modifying-video-orientation in Portrait orientation have a transformation matrix applied to them causing them to display rotated 90 degrees counter clock. From what I understand thus far I just need to modify the transform matrix in the 'tkhd' atom. The problem is I am..
iphone-sdk: Adding a textfield to UIAlertview does not work in iOS 4? http://stackoverflow.com/questions/3410372/iphone-sdk-adding-a-textfield-to-uialertview-does-not-work-in-ios-4 insertObject NSDictionary dictionaryWithObjectsAndKeys self.newWorkout @ titleValue @ 04.08.10 @ dateValue nil atIndex counter counter self.tableView reloadData iphone objective c ios4 uitextfield uialertview share improve this question I am.. NSDictionary dictionaryWithObjectsAndKeys self.newWorkout @ titleValue @ 04.08.10 @ dateValue nil atIndex counter counter self.tableView reloadData iphone objective c ios4 uitextfield uialertview share improve this question I am also using..
http://stackoverflow.com/questions/3558252/ios-keychain-security simple code of 4 numeric digits would be brute forced in less than 9 minutes. Based on the assumption that the counter for wrong tries in the iOS can be bypassed as it is not hardware based Apple Inc. WWDC 2010 Core OS Session 209 Securing..
viewWillAppear, viewDidAppear not being called, not firing http://stackoverflow.com/questions/3560669/viewwillappear-viewdidappear-not-being-called-not-firing viewwillappear share improve this question I'm going to go ahead and disagree with @St3fan and use UIKit as the counter example. However the wisdom or lack thereof of embedding controllers in general should be guided by sane UI design principles... wisdom or lack thereof of embedding controllers in general should be guided by sane UI design principles. The easiest counter example is UINavigationControllers embedded in UITabBarControllers. These appear all over the place. Just off the top of..
Understanding the memory consumption on iPhone http://stackoverflow.com/questions/363493/understanding-the-memory-consumption-on-iphone Object Allocations most of the memory is in the textures exactly as I would expect. But both my own texture allocation counter and the Gart Object Size agree that the textures should take up somewhere around 5 MB. I am not aware of allocating anything.. Object Alloc tool is almost useless for tracking the real memory usage. When I create a texture the allocated memory counter goes up for a while reading the texture into the memory then drops passing the texture data to OpenGL freeing . This is..
http://stackoverflow.com/questions/551530/customizing-uialertview customizing UIAlert view and build a custom view yourself. For one what you're showing really isn't an alert so it's counter to what UIAlertView is designed to be for. This means that you're changing the UI paradigm on the user which is never a..
Moving a Stick figure, anchorpoints, animation, or something else…? http://stackoverflow.com/questions/7808981/moving-a-stick-figure-anchorpoints-animation-or-something-else position property. Especially if you do bounding box or radius based collision detection modifying the anchor point is counter productive. Let's assume your rectangular sprite image uses a default anchor point which is in the center of the texture..
tabbar item image and selectedImage http://stackoverflow.com/questions/8939399/tabbar-item-image-and-selectedimage on 4 if UIDevice currentDevice systemVersion floatValue 4.9 NSString selectedImageName unselectedImageName for int counter 0 counter self.tabBarController.tabBar.items count counter if counter 0 selectedImageName someImagename unselectedImageName.. UIDevice currentDevice systemVersion floatValue 4.9 NSString selectedImageName unselectedImageName for int counter 0 counter self.tabBarController.tabBar.items count counter if counter 0 selectedImageName someImagename unselectedImageName someImagename.. 4.9 NSString selectedImageName unselectedImageName for int counter 0 counter self.tabBarController.tabBar.items count counter if counter 0 selectedImageName someImagename unselectedImageName someImagename else if counter 1 selectedImageName someImagename..
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