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authorYannick Loriot <yannick.loriot@gmail.com>2013-08-13 16:46:16 +0200
committerYannick Loriot <yannick.loriot@gmail.com>2013-08-13 16:46:16 +0200
commit0d41a6405627b50f2839df3a3b019836f361ecc0 (patch)
treeb2475c0d84358bd677c814ac5136821b7dfeca1d
parent50c3526247810078b6c63e2cbaf79bc226e873dc (diff)
[UPDATE] Object Creation
-rw-r--r--objective-c.html.markdown46
1 files changed, 36 insertions, 10 deletions
diff --git a/objective-c.html.markdown b/objective-c.html.markdown
index 6eac69a8..f43081cf 100644
--- a/objective-c.html.markdown
+++ b/objective-c.html.markdown
@@ -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;
+
+// Methods
++/- (return type)methodSignature:(Parameter Type *)parameterName;
-// Class method
+// + 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.