https://code-reference.com/ 2026-04-25T19:59:09+02:00 https://code-reference.com/ https://code-reference.com/ttps://code-reference.com/lib/tpl/dokuwiki/images/favicon.ico text/html 2014-06-08T01:44:03+02:00 https://code-reference.com/objective-c/foundation.framework/nsdictionary.h?rev=1402184643&do=diff NSDictionary The NSDictionary class declares the programmatic interface to objects that manage immutable associations of keys and values. A key-value pair within a dictionary is called an entry. Use this class when you need a convenient and efficient way to retrieve data associated with an arbitrary key. text/html 2014-05-30T21:52:18+02:00 https://code-reference.com/objective-c/foundation.framework/nsdictionary.h/init?rev=1401479538&do=diff init - (instancetype)init Initializes a newly allocated dictionary. Return Value - NSDictionary ObjC Sourcecode Example // ** Init dictionary ** NSDictionary *myDictionary = [[NSDictionary alloc]init]; // ** Output dictionary ** NSLog(@"myDictionary: %@", myDictionary); text/html 2014-05-30T21:51:53+02:00 https://code-reference.com/objective-c/foundation.framework/nsdictionary.h/initwithobjectsandkeys?rev=1401479513&do=diff initWithObjectsAndKeys - (instancetype)initWithObjectsAndKeys:(id)firstObject, (NSString*)firstKey, ... Initializes a newly allocated dictionary with entries constructed from the specified set of values and keys. Return Value - NSDictionary text/html 2024-02-16T01:12:19+02:00 https://code-reference.com/objective-c/foundation.framework/nsdictionary.h/allkeys?rev=1708042339&do=diff allKeys - (NSArray *)allKeys Returns a new array containing the dictionary’s keys, or an empty array if the dictionary has no entries. Return Value - NSArray ObjC Sourcecode Example // ** Init dictionary with entries NSDictionary *myDictionary = [[NSDictionary alloc]initWithObjectsAndKeys:@"value1", @"key1", @"value2", @"key2", nil]; NSArray *keysArray = [myDictionary allKeys]; // ** Output dictionary keys NSLog(@"myDictionary all keys: %@", keysArra… text/html 2014-06-08T01:34:53+02:00 https://code-reference.com/objective-c/foundation.framework/nsdictionary.h/count?rev=1402184093&do=diff count - (NSUInteger)count Returns the number of entries in a dictionary. Return Value - NSUInteger ObjC Sourcecode Example // ** Init dictionary with entries NSDictionary *myDictionary = [[NSDictionary alloc]initWithObjectsAndKeys:@"value1", @"key1", @"value2", @"key2", nil]; int count = myDictionary.count; // ** Output dictionary count NSLog(@"myDictionary count: %i", myDictionary.count); text/html 2014-05-30T20:08:10+02:00 https://code-reference.com/objective-c/foundation.framework?rev=1401473290&do=diff foundation.framework nsstring.h nsnumber.h nsvalue.h nsarray.h nsmutablearray.h nsfilemanager.h nsdictionary.h text/html 2024-02-16T01:06:19+02:00 https://code-reference.com/objective-c/examples/rootviewcontroller?rev=1708041979&do=diff Add a UIViewController named RootViewController to your empty project Add a RootViewController to your project First step import the RootViewController.h in your AppDelegate #import "RootViewController.h" Second step initialize and add the RootViewController to window text/html 2024-02-16T01:06:19+02:00 https://code-reference.com/objective-c/examples/tabbarcontroller?rev=1708041979&do=diff Add two UIViewController named RootViewController and SecondRootViewController to your empty project Create a TabBarController for your project First step import the RootViewController.h and SecondRootViewController.h in your AppDelegate #import "RootViewController.h" #import "SecondRootViewController.h" text/html 2024-02-16T01:06:19+02:00 https://code-reference.com/objective-c/examples/navigationcontroller?rev=1708041979&do=diff Add a UIViewController named RootViewController to your empty project Create a NavigationController for your project First step import the RootViewController.h in your AppDelegate #import "RootViewController.h" Second step initialize NavigationController with RootViewController and add it to window