¡@
2014/10/15 ¤U¤È 10:15:29
iphone Programming Glossary: unloadDetect when home button is pressed iOS http://stackoverflow.com/questions/10324596/detect-when-home-button-is-pressed-ios doesn't seem to get called when I press the home button. void viewWillUnload super viewWillUnload NSLog @ View will unload udpSocket close udpSocket nil View will unload is never displayed in the console which leads me to believe that the method.. home button. void viewWillUnload super viewWillUnload NSLog @ View will unload udpSocket close udpSocket nil View will unload is never displayed in the console which leads me to believe that the method is never getting called. Is there a way to detect..
viewDidLoad getting called twice on rootViewController at launch http://stackoverflow.com/questions/1081131/viewdidload-getting-called-twice-on-rootviewcontroller-at-launch
Optimized Image Loading in a UIScrollView http://stackoverflow.com/questions/1098234/optimized-image-loading-in-a-uiscrollview . My problem comes in with memory usage. I want to lazy load the images as they are about to appear on the screen and unload images that aren't on screen. As you can see in the code I work out at a minimum which image I need to load and then assign.. int centerIndex self centerThumbIndex if lastCenterIndex centerIndex return if centerIndex totalThumbs return NSRange unloadRange NSRange loadRange int totalChange lastCenterIndex centerIndex if totalChange 0 scrolling backwards loadRange.length.. centerIndex if totalChange 0 scrolling backwards loadRange.length fabsf totalChange loadRange.location centerIndex 5 unloadRange.length fabsf totalChange unloadRange.location centerIndex 6 else if totalChange 0 scrolling forwards unloadRange.length..
When should I release objects in -(void)viewDidUnload rather than in -dealloc? http://stackoverflow.com/questions/1158788/when-should-i-release-objects-in-voidviewdidunload-rather-than-in-dealloc in dealloc What is the void viewDidUnload is good for Could I not just relase everything in dealloc If the view did unload wouldn't dealloc be called anyway iphone objective c ios cocoa touch memory management share improve this question ..
IOS 6 force device orientation to landscape http://stackoverflow.com/questions/12640870/ios-6-force-device-orientation-to-landscape force device orientation to landscape I gave an app with say 10 view controllers. I use navigation controller to load unload them. All but one are in portrait mode. Suppose the 7th VC is in landscape. I need it to be presented in landscape when..
What is resident and dirty memory of iOS? http://stackoverflow.com/questions/13437365/what-is-resident-and-dirty-memory-of-ios clean memory is dirty memory dirty memory can't be recreated by system. When there is a memory pressure system will unload some clean memory when the memory is needed again system will recreate them. But for dirty memory system can't unload them.. unload some clean memory when the memory is needed again system will recreate them. But for dirty memory system can't unload them and iOS has no swap mechanism so dirty memory will always be kept in physical memory till it reach a certain limit..
Communication between view controllers http://stackoverflow.com/questions/1880033/communication-between-view-controllers for its instance variables. The memory intensive part are the views themselves. And UIViewController's view loading unloading mechanism will take care to unload the memory intensive view when needed i.e. if it receives a memory warning and the.. intensive part are the views themselves. And UIViewController's view loading unloading mechanism will take care to unload the memory intensive view when needed i.e. if it receives a memory warning and the view is currently not on screen . So..
http://stackoverflow.com/questions/2120984/loading-xibs-into-a-uiview the view that each segment needs to display in the detailView area. I'm now stuck because I don't know how to load and unload the appropriate .xib file into the detailView area. Here's where I am void segmentValueChanged id sender switch sender selectedSegmentIndex.. the detailView UIView and Load the NotesView.xib file into it break default break So how do I fill in the blanks and unload load the detailView UIView properly Thanks UPDATE The code in viewDidLoad is now void viewDidLoad super viewDidLoad Set..
iPhone Development - Simulate Memory Warning http://stackoverflow.com/questions/491075/iphone-development-simulate-memory-warning event broadcast. If the view controller's view isn't being used at the time of the memory warning the controller will unload it by setting the property to nil. How does it know if the the view is used By the view's superview property. If view.superview.. the view is used By the view's superview property. If view.superview is nil the view isn't part of any tree and can be unloaded safely. Once that happens the controller's viewDidUnload gets called. This is the correct place to unload any outlets.. and can be unloaded safely. Once that happens the controller's viewDidUnload gets called. This is the correct place to unload any outlets and anything that will get re created in viewDidLoad . So what is didReceiveMemoryWarning for Your controller..
Switching to a TabBar tab view programmatically? http://stackoverflow.com/questions/5413538/switching-to-a-tabbar-tab-view-programmatically it open a different tab in the tab bar of the TabBarController. How would I write the code to do this I'm assuming I unload the existing view and load a specific tab view but I'm not sure how to write the code exactly. Thanks. iphone objective..
viewdidunload is not getting called at all http://stackoverflow.com/questions/5594410/viewdidunload-is-not-getting-called-at-all is not getting called at all My problem is like this Parent class loads a child view. Child removes itself during an action.. gets a delegate call when the child gets removed and hence makes the child object nil. Still the child class's viewdidunload is not called iphone ipad view unload share improve this question As others have mentioned viewDidUnload is a method.. removed and hence makes the child object nil. Still the child class's viewdidunload is not called iphone ipad view unload share improve this question As others have mentioned viewDidUnload is a method of UIViewController. It isn't guaranteed..
iOS: What is the difference between -init and -viewLoad of a ViewController? http://stackoverflow.com/questions/8666097/ios-what-is-the-difference-between-init-and-viewload-of-a-viewcontroller view programatically use the loadView method then this is the place to set UIControl properties. Since the system can unload views to save memory it will leave the UIViewController alone. Any properties set in the init methode will not be applied..
http://stackoverflow.com/questions/2120984/loading-xibs-into-a-uiview the detailView area. Here's where I am void segmentValueChanged id sender switch sender selectedSegmentIndex case 0 Unload whatever is in the detailView UIView and Load the AddressView.xib file into it break case 1 Unload whatever is in the.. case 0 Unload whatever is in the detailView UIView and Load the AddressView.xib file into it break case 1 Unload whatever is in the detailView UIView and Load the ContactsView.xib file into it break case 2 Unload whatever is in the.. it break case 1 Unload whatever is in the detailView UIView and Load the ContactsView.xib file into it break case 2 Unload whatever is in the detailView UIView and Load the NotesView.xib file into it break default break So how do I fill in the..
Why is viewDidUnload called less often than viewDidLoad? http://stackoverflow.com/questions/3333343/why-is-viewdidunload-called-less-often-than-viewdidload is viewDidUnload called less often than viewDidLoad I put NSLog @ @ @ self class description NSStringFromSelector _cmd in both viewDidLoad.. than viewDidLoad I put NSLog @ @ @ self class description NSStringFromSelector _cmd in both viewDidLoad and viewDidUnload of a view controller. In the log I found viewDidLoad is called a lot more than viewDidUnload when the app moves to and from.. viewDidLoad and viewDidUnload of a view controller. In the log I found viewDidLoad is called a lot more than viewDidUnload when the app moves to and from different .nibs. Why iphone objective c share improve this question The viewDidLoad..
Am I abusing UIViewController Subclassing? http://stackoverflow.com/questions/5691226/am-i-abusing-uiviewcontroller-subclassing VC Honestly this seems like a tremendous waste of time. Custom implementations of ViewDidLoad viewDidLoad viewDidUnload viewWillAppear viewWillDisappear not to mention things as simple as properties like say view ... So basically either I have.. of your view controller's view hierarchy using those methods create a subclass of NSObject that has viewDid Load Unload Appear Disappear and viewWill Appear Disappear methods. You can create that class once and then subclass it as often as..
AudioUnits causing universal skipping after returning from Springboard http://stackoverflow.com/questions/6130443/audiounits-causing-universal-skipping-after-returning-from-springboard AudioBufferList pData OSStatus tErr noErr Do Nothing return tErr @implementation MySoundStream void dealloc self Unload super dealloc void Unload OSStatus tErr noErr tErr AudioUnitUninitialize OutUnit @end MySoundStream Load OSStatus tErr noErr.. OSStatus tErr noErr Do Nothing return tErr @implementation MySoundStream void dealloc self Unload super dealloc void Unload OSStatus tErr noErr tErr AudioUnitUninitialize OutUnit @end MySoundStream Load OSStatus tErr noErr AudioComponentInstance..
Dismiss modal view changes underlying UIScrollView http://stackoverflow.com/questions/7168682/dismiss-modal-view-changes-underlying-uiscrollview think that could make a difference. Take a look at your viewWillAppear WillDisappear DidAppear... Even the Load and Unload if appropriate although unlikely those are called for your trivial test with nothing in the modal. Try placing some logging..
|