[UPDATE] Object Creation

This commit is contained in:
Yannick Loriot 2013-08-13 16:46:16 +02:00
parent 50c3526247
commit 0d41a64056

View File

@ -201,27 +201,56 @@ int main (int argc, const char * argv[])
///////////////////////////////////////
// Declare your class in a header(.h) file:
@interface UserObject : NSObject
// Class Declaration Syntax:
// @interface <class name> : <parent classname>
// {
// Member variable declarations;
// }
// -/+ (type) Method declarations;
// @end
@interface MyClass : NSObject
{
// instance variables
int count;
id data;
NSString *name;
}
// Create the public getter/setter for the variable count
@property(assign) int count;
// Class method
// Methods
+/- (return type)methodSignature:(Parameter Type *)parameterName;
// + for class method
+ (NSString *)classMethod;
// Instance method
// - for instance method
- (NSString *)instanceMethodWithParmeter:(NSString *)string;
- (NSNumber *)methodAParameterAsString:(NSString*)string andAParameterAsNumber:(NSNumber *)number;
-
@end
// Implement the methods in an implementation (.m) file:
@implementation UserObject
// Constructors are a way of creating classes
// This is a default constructor
- (id)init
{
if ((self = [super init]))
{
self.count = 1;
// 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];
}
return self;
}
+ (NSString *)classMethod
{
return @"SomeString";
return [[self alloc] init];
}
- (NSString *)instanceMethodWithParmeter:(NSString *)string
@ -236,9 +265,6 @@ int main (int argc, const char * argv[])
@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.