ios7

问题 I have created SKScene inherited class. Problem is that on contact of physics body method - (void)didBeginContact:(SKPhysicsContact *)contact is not invoked solution may be simple but as beginner with sprite kit i am stuck with this. Below is the code #import "MyScene.h" @interface MyScene () @property BOOL contentCreated; @end @implementation MyScene - (id)initWithSize:(CGSize)size { self = [super initWithSize:size]; if (self) { self.physicsWorld.contactDelegate = self; self.physicsBody =

问题 I have an appearance proxy that sets the barTintColor property to green on UINavigationBar [[UINavigationBar appearance] setBarTintColor:[UIColor colorWithRed:54./255 green:165./255 blue:53./255 alpha:1]]; As needed I override this using appearanceWhenContainedIn: [[UINavigationBar appearanceWhenContainedIn:[INFSearchViewController class], nil] setBarTintColor:[UIColor colorWithWhite:0.80 alpha:1]]; This works fine. However when I present an MFMessageComposeViewController it adheres to the

问题 Previously in iOS6, my chat message view controller displayed and animated correctly with carefully constructed autolayout constraints in IB. Here's the current view hierarchy with the constraints removed in Xcode 5: After upgrading to XCode 5 and iOS7, I found I needed to clear all the old constraints in order to account for the default translucent status bar, otherwise my toolbar would fall under the status bar. This happened despite calling setEdgesForExtendedLayout: with UIRectEdgeNone. I

问题 How do you add a text field to the title view of a navigation item and have it sized correctly? It works fine if I do this with a search bar like this but I don't know how to get a text field to size itself in the same way as a search bar. myViewController.navigationItem.titleView = [UISearchBar new]; 回答1: As my comment suggested, try the following, which seems to me is what you're after. UITextField *textField = [[UITextField alloc]initWithFrame:CGRectMake(0, 0, self.navigationController

问题 On iOS7, while trying to access HTML5 localStorage object via JavaScript, stops execution of Javascript. It works correctly in previous iOS versions. The app runs perfectly when the app is freshly installed and launched. But then, I close the app and launch again, it does not work and fails on accessing localStorage. To disable cookies, I have used below code: [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyNever]; To access localStorage, I have

问题 So I noticed that Apple changed SKStoreProductViewController, disabling the "Write a Review" button. Is there any workaround or fix for this issue? 回答1: SKStoreProductViewController doesn't support the 'Write a review' option anymore. Why? I really don't know. It did in iOS6. A work around could be opening the app store with a 'itms-app://'-link. if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_6_1) { NSString *appURL = [NSString stringWithFormat:@"itms-apps://itunes.apple

问题 I have some apps designed for iOS 6 and today I went to upgrade them to iOS 7. They are a simple table view lists and when a record is selected it displays details about that row on another screen. This worked flawlessly in iOS 6. With iOS 7 when I select a row it shows a blank data page on the first selection. If I then go back to the list and reselect the item it then displays the proper data.. After this first blank display it will work fine for any other records .. I am racking my brain

问题 I have successfully converted an Image to Grayscale, I want to revert the Grayscale Image back to RGB Image. Please help. Thanks in advance. -(UIImage *) toGrayscale { const int RED = 1; const int GREEN = 2; const int BLUE = 3; Create image rectangle with current image width/height CGRect imageRect = CGRectMake(0, 0, self.size.width * self.scale, self.size.height * self.scale); int width = imageRect.size.width; int height = imageRect.size.height; // the pixels will be painted to this array

问题 I have some view controllers with a toolbar at top and look like this How I can fill the status bar background to match the toolbar background so its match the new iOS 7 style? 回答1: you need to add a subview in app delegate and change the color to your liking. here is a sample of the code that sits in applicationdidfinishLaunchingWithOptions - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after

问题 I have the following code in my viewDidLoad of my containing view: // Now add the next button UIBarButtonItem *nextButton = [[UIBarButtonItem alloc] initWithTitle:@"Next" style:UIBarButtonItemStylePlain target:self action:@selector(self)]; self.navigationItem.rightBarButtonItem.tintColor = [UIColor blueColor]; self.navigationItem.rightBarButtonItem = nextButton; The UINavigationController parent has this in viewDidLoad: [super viewDidLoad]; // Do any additional setup after loading the view.