How do I pass an integer value to another class?

Question

Here is my code:

secondClass.h

@property (nonatomic) int number;

secondClass.m

@synthesize number;


  //positioning object in x position of first class

  object.center = CGPointMake(number, object.center.y);


  NSLog(@"%d",number);

first class.m

#import "secondClass.h"
secondClass *second = [secondClass alloc];
second.number = 15;

I used NSLog to see what is happening. In the first class, the value of the second number is 15. When I used NSLog to see it's value in the second class, it comes up as 0.

What am I doing wrong?

You're only allocating `secondClass`, never `initializing` it. — Aaron, Mar 18 '14 at 18:07
You should really name your classes according to Apple's guidelines `XXSecondClass`. — hfossli, Mar 18 '14 at 18:11
which method does have this line: `object.center = CGPointMake(number, object.center.y);`? — holex, Mar 18 '14 at 20:15

score 0 · Answer 1 · edited Mar 18 '14 at 18:12

0

maybe you just have a typo in your description but try:

secondClass *second = [[secondClass alloc] init];  
second.number = 15;  
NSlog(@"number is:%d",number);

edited Mar 18 '14 at 18:12

hfossli

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answered Mar 18 '14 at 17:58

CocoaEv

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tried with initializing it now.. but still result is the same. Still got 0 in secondClass.m output. – user3215624 Mar 18 '14 at 18:18
Can you post your actual code (since the NSLog is missing, and some code posted here is incorrect). Consider this: Your code doesn't do what you want it to do. So don't keep code away from us because you assume it is correct. It isn't. – gnasher729 Mar 18 '14 at 22:23

score 0 · Answer 2 · answered Mar 18 '14 at 18:05

0

Try to synthesize your number in secondClass.m

@synthesize number;

and add the init in your secondClass declaration

hope this help.

answered Mar 18 '14 at 18:05

Yassine Khabbazia

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score 0 · Answer 3 · answered Mar 19 '14 at 07:24

Find a similar case. The thing is that I'm using segue for transition from one view controller to another. I solved out problem with method prepareForSegue. Here is the code I was searching:

  -(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
    if([segue.identifier isEqualToString:@"NextView"]){
    secondClass *second = (secondClass *)segue.destinationViewController;
    second.number = object.center.x;
   }
}

score 0 · Answer 4 · answered Mar 19 '14 at 07:27

0

@property (readwrite) int number;

//first class

    second *move = [[second alloc] initWithNibName:@"second" bundle:nil];
    move.number = 15;
    [self.navigationController pushViewController:move animated:YES];
    [move release];

answered Mar 19 '14 at 07:27

Bhavesh Nayi

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How do I pass an integer value to another class?

4 Answers4