diff --git a/objvectiv-C.html.markdown b/objvectiv-C.html.markdown deleted file mode 100644 index 787a9219..00000000 --- a/objvectiv-C.html.markdown +++ /dev/null @@ -1,99 +0,0 @@ ---- -language: Objectiv-C -author: Eugene Yagrushkin -author_url: www.about.me/yagrushkin -filename: learnc.Objectiv-C ---- - -Objective-C is the main programming language used by Apple for the OS X and iOS operating systems and their respective APIs, Cocoa and Cocoa Touch. -It's is a general-purpose, object-oriented programming language that adds Smalltalk-style messaging to the C programming language. - -```Objective-C -// Single-line comments start with // - -/* -Multi-line comments look like this. -*/ - -##Basic types -// all the primitive variable types are the same as in C -// char, int, long, double, float - - -// Simple, common classes -// number -NSNumber *firstNumber = @1; -NSNumber *secondNumber = @23.0; -NSNumber *boolNumber = @YES; - -// string -NSString *aString = @"some string"; - -// array -NSArray *array = @[ @1, @2]; - -// dictionary -NSDictionay *dictionary = @{ @"aKey" : @"aValue", @"aKey2" : @"aValue2" }; - -// Import headers with #import -#import -#import "SomeAppDelegate.h" - -##Coding classes - -// Declare your class in a header(.h) file: - -@interface UserObject : NSObject{ -// instance variables -} - -// Class method - + (NSString*) ClassMethod; - -// Instance method - - (NSString*) instanceMethodWithParmeter:(NSString*)string; - -@end - -// Add class methods in an implementation (.m) file: - -@implementation UserObject - -+ (NSString*) ClassMethod{ - return @"SomeString"; -} - -- (NSString*) instanceMethodWithParmeter:(NSString*)string; -{ - return @"New string"; -} - -- (NSString*) otherMethodWithString:(NSString*)string; -{ - return [NSString stringWithString:string]; -} -@end - -// Create an object instance by allocating memory and initializing it. An object is not fully functional until both steps have been completed. -UserObject *someObject = [[UserObject alloc] init]; - -##Calling Methods - -// The Objective-C model of object-oriented programming is based on message passing to object instances. -// In Objective-C one does not simply call a method; one sends a message. - -[someObject instanceMethodWithParmeter:@"Steve Jobs"]; - -##Nested Messages -// nested messages look like this: - -[someObject instanceMethodWithParmeter:[someObject otherMethodWithString:@"Jony Ive"]]; - -``` -## Further Reading - -[Wikipedia Objective-C](http://en.wikipedia.org/wiki/Objective-C) - -[Objectively Speaking: A Crash Course in Objective-C](http://www.raywenderlich.com/12444/objectively-speaking-a-crash-course-in-objective-c) - -[iOS For High School Students: Getting Started](http://www.raywenderlich.com/5600/ios-for-high-school-students-getting-started)