How to access function in another class

Question

I am new to ios.I have a class which carries all attributes and methods.I am intending to access that class content one json method which parses the data.Now, I have another class. I want to call json method in that class.Plz tell how can i achieve this.

http://stackoverflow.com/questions/9731126/how-to-call-method-from-one-class-in-another-ios and you may check the **Related** questions right of the this answer ;). — Tarek Hallak, Nov 27 '13 at 08:25

score 4 · Answer 1 · answered Nov 27 '13 at 08:13

4

If the method is class (i.e. static) method:

[NameOfClass methodName:parameter];

If the method is instance method:

[instanceOfClass methodName:parameter];

answered Nov 27 '13 at 08:13

Lukman

18,462
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56
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score 0 · Answer 2 · answered Nov 27 '13 at 08:14

0

Make you method public. to Do so add declaration of you method to .h file.

Like so:

-(void) myJSONMethod;

answered Nov 27 '13 at 08:14

Eugene P

554
4
19

score 0 · Answer 3 · edited May 23 '17 at 10:31

here is reference Accessing Method from other Classes Objective-C

@implementation commonClass
+ (void)CommonMethod:(id)sender  /* note the + sign */
{
//So some awesome generic stuff...
    }
@end

@implementation ViewController2

- (void)do_something... {
    [commonClass CommonMethod];
}


@end

Option 2:

@implementation commonClass
- (void)CommonMethod:(id)sender
{
//So some awesome generic stuff...
    }
@end

@implementation ViewController2

- (void)do_something... {
    commonClass *c=[[commonClass alloc] init];
    [c CommonMethod];
    [c release];
}

@end

Option 3: use inheritance (see Mr. Totland's description in this thread)

@implementation commonClass
- (void)CommonMethod:(id)sender
{
//So some awesome generic stuff...
    }
@end

/* in your .h file */

@interface ViewController2: commonClass

@end

naturally you always need to #import commonClass.h in your view controllers..

score 0 · Answer 4 · answered Nov 27 '13 at 08:15

0

You need to create an object for your second class. By using this object, you can call methods that you declared in the second class header file.

ClassName *obj = [[ClassName alloc]init];
[obj methodName];

answered Nov 27 '13 at 08:15

manujmv

6,450
1
22
35

score 0 · Answer 5 · answered Nov 27 '13 at 08:18

0

if you have to call a class method

[ClassName methodName:parameter];

if you have instance method

 ClassName * obj = [[ClassName alloc] init];

 [obj methodName:parameter];

but make sure that , you have declared that method in ClassName.h file also .

answered Nov 27 '13 at 08:18

Shaik Riyaz

11,204
7
53
70

How to access function in another class

5 Answers5