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2014/10/15 ¤U¤È 10:05:32
iphone Programming Glossary: controller'sHow do I change the title of the “back” button on a Navigation Bar http://stackoverflow.com/questions/1449339/how-do-i-change-the-title-of-the-back-button-on-a-navigation-bar text shown on the button to something else. I tried putting the following line of code in the view controller's viewDidLoad method but it doesn't seem to work. self.navigationItem.leftBarButtonItem.title @ Log Out..
http://stackoverflow.com/questions/1509547/uiview-with-rounded-corners trying to apply rounded corners to a UIViewController 's view it should not be applied in the view controller's constructor but rather in viewDidLoad after view is actually instantiated. share improve this answer..
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root implement this the Right Way ^1 The tab bar controller needs to be subclassed so that the tab bar controller's navigation item at that level stays in sync with the selected tab's navigation item and the individual.. at that level stays in sync with the selected tab's navigation item and the individual tab's table controller's need to push their respective detail views to self.tabBarController.navigationController instead of..
How do I set up a simple delegate to communicate between two view controllers? http://stackoverflow.com/questions/6168919/how-do-i-set-up-a-simple-delegate-to-communicate-between-two-view-controllers and we want to pass the value of the slider back to the parent via a delegate. In the child view controller's header file declare the delegate type and its methods ChildViewController.h #import UIKit UIKit.h 1... ChildViewController viewController didChooseValue CGFloat value @end In the child view controller's implementation call the delegate methods as required. ChildViewController.m #import ChildViewController.h.. self.delegate childViewController self didChooseValue self.slider.value @end In the parent view controller's header file declare that it implements the ChildViewControllerDelegate protocol. RootViewController.h..
Applications are expected to have a root view controller at the end of application launch http://stackoverflow.com/questions/7520971/applications-are-expected-to-have-a-root-view-controller-at-the-end-of-applicati UIApplication sharedApplication setStatusBarStyle UIStatusBarStyleBlackTranslucent Add the tab bar controller's current view as a subview of the window self.window.rootViewController self.tabBarController self.window..
Play music in the background using AVAudioplayer http://stackoverflow.com/questions/7619794/play-music-in-the-background-using-avaudioplayer tasks and make some changes in .plist file of our application.. Update write this code in your controller's view did load method like this void viewDidLoad NSURL url NSURL fileURLWithPath NSBundle mainBundle..
How do I change the title of the “back” button on a Navigation Bar http://stackoverflow.com/questions/1449339/how-do-i-change-the-title-of-the-back-button-on-a-navigation-bar the button is pressed back button . I want to change the text shown on the button to something else. I tried putting the following line of code in the view controller's viewDidLoad method but it doesn't seem to work. self.navigationItem.leftBarButtonItem.title @ Log Out What should I do Thanks. iphone objective c uinavigationbar..
http://stackoverflow.com/questions/1509547/uiview-with-rounded-corners
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root a different account would probably be a pain. How should I implement this the Right Way ^1 The tab bar controller needs to be subclassed so that the tab bar controller's navigation item at that level stays in sync with the selected tab's navigation item and the individual tab's table controller's need to push their respective detail.. subclassed so that the tab bar controller's navigation item at that level stays in sync with the selected tab's navigation item and the individual tab's table controller's need to push their respective detail views to self.tabBarController.navigationController instead of self.navigationController . iphone cocoa touch uitabbarcontroller..
How do I set up a simple delegate to communicate between two view controllers? http://stackoverflow.com/questions/6168919/how-do-i-set-up-a-simple-delegate-to-communicate-between-two-view-controllers example... Let's say the child view controller has a UISlider and we want to pass the value of the slider back to the parent via a delegate. In the child view controller's header file declare the delegate type and its methods ChildViewController.h #import UIKit UIKit.h 1. Forward declaration of ChildViewControllerDelegate this just.. @protocol ChildViewControllerDelegate NSObject void childViewController ChildViewController viewController didChooseValue CGFloat value @end In the child view controller's implementation call the delegate methods as required. ChildViewController.m #import ChildViewController.h @implementation ChildViewController void handleCloseButton.. @selector childViewController didChooseValue self.delegate childViewController self didChooseValue self.slider.value @end In the parent view controller's header file declare that it implements the ChildViewControllerDelegate protocol. RootViewController.h #import UIKit UIKit.h #import ChildViewController.h @interface..
Applications are expected to have a root view controller at the end of application launch http://stackoverflow.com/questions/7520971/applications-are-expected-to-have-a-root-view-controller-at-the-end-of-applicati UIImage imageNamed @ testbg.png Set StatusBar Color UIApplication sharedApplication setStatusBarStyle UIStatusBarStyleBlackTranslucent Add the tab bar controller's current view as a subview of the window self.window.rootViewController self.tabBarController self.window makeKeyAndVisible return YES IN IB the tabBarController's..
Play music in the background using AVAudioplayer http://stackoverflow.com/questions/7619794/play-music-in-the-background-using-avaudioplayer solved this question by referring iOS Application Background tasks and make some changes in .plist file of our application.. Update write this code in your controller's view did load method like this void viewDidLoad NSURL url NSURL fileURLWithPath NSBundle mainBundle pathForResource @ in the storm ofType @ mp3 AVAudioPlayer audioPlayer..
How do I change the title of the “back” button on a Navigation Bar http://stackoverflow.com/questions/1449339/how-do-i-change-the-title-of-the-back-button-on-a-navigation-bar want to change the text shown on the button to something else. I tried putting the following line of code in the view controller's viewDidLoad method but it doesn't seem to work. self.navigationItem.leftBarButtonItem.title @ Log Out What should I do Thanks...
http://stackoverflow.com/questions/1509547/uiview-with-rounded-corners
In iOS6, trouble forcing ViewController to certain interfaceOrientation when pushed on stack http://stackoverflow.com/questions/15300819/in-ios6-trouble-forcing-viewcontroller-to-certain-interfaceorientation-when-pus you're describing is simply not how a navigation controller architecture works in iOS 6. If you want to show a view controller's view and force rotation use a presented view controller. That's the only time preferredInterfaceOrientationForPresentation.. view controller. That's the only time preferredInterfaceOrientationForPresentation is meaningful and your view controller's supportedInterfaceOrientations will actually be consulted because being presented it will be at the root of the interface...
http://stackoverflow.com/questions/1816614/viewwilldisappear-determine-whether-view-controller-is-being-popped-or-is-showi is being popped or is showing a sub view controller I'm struggling to find a good solution to this problem. In a view controller's viewWillDisappear method I need to find a way to determine whether it is because a view controller is being pushed onto.. method I need to find a way to determine whether it is because a view controller is being pushed onto the navigation controller's stack or whether it is because the view controller is disappearing because it has been popped. At the moment I'm setting..
Showing login view controller before main tab bar controller http://stackoverflow.com/questions/2716755/showing-login-view-controller-before-main-tab-bar-controller removeFromSuperview self.delegate loginViewControllerDidFinish self ... @end So the app delegate adds the login view controller's view on launch and waits for login to call did finish using a delegate. The login view controller calls removeFromSuperView.. controller calls removeFromSuperView before it calls didFinish. The app delegate then calls addSubView on the tab bar controller's view. If you made it up to this point thanks and I have three questions MAIN QUESTION Is this the right way to show a view..
Tab bar controller inside a navigation controller, or sharing a navigation root view http://stackoverflow.com/questions/576764/tab-bar-controller-inside-a-navigation-controller-or-sharing-a-navigation-root a pain. How should I implement this the Right Way ^1 The tab bar controller needs to be subclassed so that the tab bar controller's navigation item at that level stays in sync with the selected tab's navigation item and the individual tab's table controller's.. navigation item at that level stays in sync with the selected tab's navigation item and the individual tab's table controller's need to push their respective detail views to self.tabBarController.navigationController instead of self.navigationController..
How do I set up a simple delegate to communicate between two view controllers? http://stackoverflow.com/questions/6168919/how-do-i-set-up-a-simple-delegate-to-communicate-between-two-view-controllers has a UISlider and we want to pass the value of the slider back to the parent via a delegate. In the child view controller's header file declare the delegate type and its methods ChildViewController.h #import UIKit UIKit.h 1. Forward declaration.. void childViewController ChildViewController viewController didChooseValue CGFloat value @end In the child view controller's implementation call the delegate methods as required. ChildViewController.m #import ChildViewController.h @implementation.. didChooseValue self.delegate childViewController self didChooseValue self.slider.value @end In the parent view controller's header file declare that it implements the ChildViewControllerDelegate protocol. RootViewController.h #import UIKit UIKit.h..
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 be the same in viewDidLoad as it will be when the view is eventually displayed. UIKit adjusts the frame of your view controller's view prior to displaying it based on the context in which will appear. The size is determined based on interface orientation.. itself has a height that can change e.g. when you're on a phone call . It helps to understand what happens when a view controller's view is loaded and displayed Something accesses your view controller's view property for the first time. This may occur.. It helps to understand what happens when a view controller's 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..
Applications are expected to have a root view controller at the end of application launch http://stackoverflow.com/questions/7520971/applications-are-expected-to-have-a-root-view-controller-at-the-end-of-applicati Set StatusBar Color UIApplication sharedApplication setStatusBarStyle UIStatusBarStyleBlackTranslucent Add the tab bar controller's current view as a subview of the window self.window.rootViewController self.tabBarController self.window makeKeyAndVisible..
Play music in the background using AVAudioplayer http://stackoverflow.com/questions/7619794/play-music-in-the-background-using-avaudioplayer Application Background tasks and make some changes in .plist file of our application.. Update write this code in your controller's view did load method like this void viewDidLoad NSURL url NSURL fileURLWithPath NSBundle mainBundle pathForResource @ in..
viewDidLoad getting called twice on rootViewController at launch http://stackoverflow.com/questions/1081131/viewdidload-getting-called-twice-on-rootviewcontroller-at-launch getting called twice on rootViewController at launch Anyone know why this root View Controller's viewDidLoad is being called twice at launch It's driving me nuts here's the stack trace from first time through viewDidLoad..
What happens if I don't retain IBOutlet? http://stackoverflow.com/questions/1250518/what-happens-if-i-dont-retain-iboutlet code using setValue forKey . The important ones to note here are the top level view that will be set to the UIViewController's view property which will retain this top level view and your UITextField which will also be retained. If it is simply set.. semantics are not contained within the setter. Now let's say a different view controller is pushed on the UINavigation Controller's stack so that this view is no longer in the foreground. In the case of a memory warning the view of this offscreen view..
presentViewController not supporting orientation in iOS 6 http://stackoverflow.com/questions/12566780/presentviewcontroller-not-supporting-orientation-in-ios-6 window return UIInterfaceOrientationMaskPortrait UIInterfaceOrientationMaskPortraitUpsideDown Also make sure the View Controller's both have the following works fine for me. BOOL shouldAutorotateToInterfaceOrientation UIInterfaceOrientation interfaceOrientation.. UIInterfaceOrientationMaskPortraitUpsideDown The documentation also says that UINavigationController's doesn't query its top View Controller for orientations supported although an Apple engineer over on the Developer Forums..
How to “transfer” first responder from one UIView to another? http://stackoverflow.com/questions/1418685/how-to-transfer-first-responder-from-one-uiview-to-another have a UIButton that is a sibling of CustomView that overlaps it. For example my view hierarchy looks like this UIView Controller's view CustomView with frame 0 0 300 300 UIButton with frame 0 0 100 50 I would like the CustomView to capture touch events..
Hiding the Keyboard when losing focus on a UITextView http://stackoverflow.com/questions/1456120/hiding-the-keyboard-when-losing-focus-on-a-uitextview
iPhone - Memory Leak - NSData dataWithContentsOfUrl & UIWebView http://stackoverflow.com/questions/280053/iphone-memory-leak-nsdata-datawithcontentsofurl-uiwebview wiring it up anywhere it's not getting released. I think you need to wire it up and release it in your backing View Controller's dealloc function. I remember having to manually release every object I created in a xib file. share improve this answer..
didReceiveMemoryWarning, viewDidUnload and dealloc http://stackoverflow.com/questions/5069978/didreceivememorywarning-viewdidunload-and-dealloc to understand this and some examples of what could be released. viewDidUnload Called whenever a non visible View Controller's View property is set to nil either manually or most commonly through didReceiveMemoryWarning. The viewDidUnload method is..
Navigation Based Application with TabBar http://stackoverflow.com/questions/599200/navigation-based-application-with-tabbar tabbar share improve this question Basically What you need to do is push a Tab View Controller onto the Navigation Controller's viewcontroller stack. Starting with a fresh Navigation Based Application template. I added the following method in RootViewController.m..
iOS 5 : -viewWillAppear is not called after dismissing the modal in iPad http://stackoverflow.com/questions/7802673/ios-5-viewwillappear-is-not-called-after-dismissing-the-modal-in-ipad question iOS 5 definitely changed their calls to viewWillAppear and viewWillDisappear. For instance subviews View Controller's views as subviews to be exact in a UIScrollView viewWillDisappear will get called when you push another view controller.. I move on. Then iOS 5 comes in and throws a wrecking ball into everything. I have also experienced when a UINavigationController's view is a subview and a ViewController is pushed on the navigation controller stack viewWillAppear never gets called in..
How to deal with non-visible rows during row deletion. (UITableViews) http://stackoverflow.com/questions/998603/how-to-deal-with-non-visible-rows-during-row-deletion-uitableviews to the updated model. I am created my code similar to Matt Gallagher and Craig Hockenberry's solution of using Cell Controller's to control individual cells void collapseVisableCells NSMutableArray cellsToRemove NSMutableArray array for NSArray sections..
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