Question

I have a silly doubt, but I need to understand it properly. I have referred few posts on this but they are still confusing to me.

I have an array which consists of set of urls which i got from parsing a xml and I store the array like this:

Parser.m

else if([elementName isEqualToString:@"image"]){
    self.img.imageUrl = self.currentElement;
     [[self URL_array]addObject:img.imageUrl]; 

}

and if I log the contents it gives the contents as follows:

the URL ARRAY IS --------------------->>>>(
"http://www.bedfordevents.co.uk/images/stories/template/GallerySlideshow/b10.jpg\n",
"http://www.bedfordevents.co.uk/images/stories/template/GallerySlideshow/b11.jpg\n",
"http://www.bedfordevents.co.uk/images/stories/template/GallerySlideshow/b12.jpg\n",
"http://www.bedfordevents.co.uk/images/stories/template/GallerySlideshow/b13.jpg\n",

I need to pass this array to another class/View controller,for which I’ve been doing like this in Parser.m file

ViewController *control = [[ViewController alloc]init];
control.image_array = URL_array;

View controller has an array image_array

and I call the array in ViewController.m like this

NSLog(@"array is----->>%@ ",self.image_array);

But the image_array returns null;

I believe I’m doing it wrong somewhere, Can anyone point out my mistake and help me out?

Thank you.

EDIT

code updated.
now I have a method in ViewController as said

-(void)updateImageArray:(NSMutableArray *)imageArray{
self.image_array = [NSMutableArray arrayWithArray:imageArray];
NSLog(@"array is in here-------->>>>%@",self.image_array);
}

and called

[control updateImageArray:URL_array];

in my Parser.m and the array is displayed in log in ViewController.m and its working

Thank you

Answer 1

From what you wrote in comments, it seems that the viewDidLoad is called BEFORE you set image_array.

You could add the method [control updateImageArray:URL_array] and then inside this method set self.image_array = [NSArray arrayWithArray:URL_array]; and refresh UI as desired