Are you setting the environment variable correctly? The step by step guide is Double-click an executable in the Executables group of your Xcode project. Click the Arguments tab. In the “Variables to be set in the environment:” section, make a variable called “NSZombieEnabled” and set its value to “YES”. You don’t need to #import NSDebug.h
I’ve had lots of issues with CLLocationManager on the iPhone also. From different Apps, and trial and error this is what I’ve figured out; 1) Use a singleton class for the locationManager, ONLY ONE Instance, follow the examples in: Apple’s LocateMe example Tweetero : http://tweetero.googlecode.com/svn/trunk I’m thinking you can only have one location manager running, … Read more
After further searching and testing, I found the solution myself. NSDictionary* infoDictionary = [[NSBundle mainBundle] infoDictionary]; NSLog(@”%i Keys: %@”, [infoDictionary count], [[infoDictionary allKeys] componentsJoinedByString: @” ,”]); This snipplet gave me the following output: 20 Keys : NSBundleResolvedPath ,CFBundleVersion ,NSBundleInitialPath ,CFBundleIdentifier ,NSMainNibFile ,CFBundleIconFile ,CFBundleInfoPlistURL ,CFBundleExecutable ,DTSDKName ,UIStatusBarStyle ,CFBundleDevelopmentRegion ,DTPlatformName ,CFBundleInfoDictionaryVersion ,CFBundleSupportedPlatforms ,CFBundleExecutablePath ,CFBundleDisplayName ,LSRequiresIPhoneOS ,CFBundlePackageType ,CFBundleSignature … Read more
You might have a NSMutableString (or some home-grown NSString subclass) that you want to duplicate. NSMutableString *buffer = [NSMutableString string]; // do something with buffer NSString *immutableStringToKeepAround = [NSString stringWithString:buffer]; Of course, you can also just make a copy: NSMutableString *buffer = [NSMutableString string]; // do something with buffer NSString *immutableStringToKeepAround = [[buffer copy] autorelease]; … Read more
self.object = nil calls your setter, which will release the old value, set the member to nil, and possibly do other things (it’s a method, so it could do anything). The “anything” part of that is potentially dangerous; see this question, for example. [object release] releases the old value, but leaves the member as a … Read more
The short answer is that you’re using UINavigationController, and that won’t work like you want it to. From Apple’s docs: Why won’t my UIViewController rotate with the device? All child view controllers in your UITabBarController or UINavigationController do not agree on a common orientation set. To make sure that all your child view controllers rotate … Read more
I’m afraid what you are trying to do will not work. I have tried to achieve the same thing. The problem is the difference in scanning in foreground and background. When you are scanning for devices in the foreground you can scan for anything. In the background you must specify the actual service UUID you … Read more
presentViewController offers a mechanism to display a so-called modal view controller; i.e., a view controller that will take full control of your UI by being superimposed on top of a presenting controller. UINavigationController offers a much more flexible mechanism where you can push a new controller, and later pop it, so to go back to … Read more
I found a workaround to force UIPageViewController to forget about cached view controllers of neighboring pages that are currently not displayed: pageViewController.dataSource = nil; pageViewController.dataSource = self; I do this everytime I change the set of pages. Of course this doesn’t affect the currently displayed page. With this workaround I avoid the caching bug and … Read more
Use NSPredicate and Regex: – (BOOL)validateEmailWithString:(NSString*)email { NSString *emailRegex = @”[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}”; NSPredicate *emailTest = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”, emailRegex]; return [emailTest evaluateWithObject:email]; } For a bunch of emails separated by a comma: – (NSMutableArray*)validateEmailWithString:(NSString*)emails { NSMutableArray *validEmails = [[NSMutableArray alloc] init]; NSArray *emailArray = [emails componentsSeparatedByString:@”,”]; for (NSString *email in emailArray) { NSString *emailRegex = … Read more