Assign string values to a NSArray - iOS

Question

I have an iOS app which downloads/parses strings from a JSON file. I need to store these strings in ONE NSArray. But every time I try I get the error:

expected method to write array element not found on object of type 'nsarray *'

All I am doing is assigning these strings to the array in a for loop.... And yet it won't work. It is baffling me why... I have assigned strings and variables to an array in C and C++.... Surely Objective-C supports this as well. What am I doing wrong?

Here is my simple for loop:

for (int loop = 0; loop <= [youtube_channel_id_tags count]; loop++) {

    self.getYTIcon = [[YTICONGET alloc] init];
    NSString *temp_url = [self.getYTIcon get_user_icon:youtube_channel_id_tags[_carousel.currentItemIndex]];
    youtube_user_icons[loop] = [temp_url description];
}

What am I doing wrong??

Thanks, Dan.

Try "NSArray" not "nsarray", Objective-C, C, and C++ are all case sensitive! — trumpetlicks
– trumpetlicks, Commented Mar 1, 2014 at 15:39
BTW - your loop variable should be NSUInteger, not int. — rmaddy
– rmaddy, Commented Mar 1, 2014 at 15:42
@rmaddy Ah right, thanks. Its weird, the example in my Objective-C/Cocoa book say to use int.... — Supertecnoboff
– Supertecnoboff, Commented Mar 1, 2014 at 15:50
int will generally work but since NSArray count and all of the other index related methods to NSArray use NSUInteger, it is more correct. — rmaddy
– rmaddy, Commented Mar 1, 2014 at 15:52

Flexicoder · Accepted Answer · 2014-03-01 15:41:01Z

3

youtube_user_icons needs to be a NSMutableArray so that you can change its contents and the line

youtube_user_icons[loop] = [temp_url description];

needs to be

[youtube_user_icons addObject:[temp_url description]];

answered Mar 1, 2014 at 15:41

Flexicoder

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Avt · Accepted Answer · 2014-03-01 15:42:15Z

0

What is your youtube_user_iconstype? Should be NSMutableArray*, not nsarray *!

answered Mar 1, 2014 at 15:42

Avt

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