getting NSString Array index by value in objective C

Question

I am new to objective C. I have created an NSString array by the following way:

static NSString* fontSizeName[] = 
{
 @"14",
 @"18",
 @"22",
 @"26",
 @"30",
 @"34",
};

Now, i have the value, "26", how can i get the index of it in fontSizeName[]?

Thanks for input.

eykanal · Accepted Answer · 2010-11-17 16:52:37Z

2

Use the indexOfObject method:

index = [fontSizeName indexOfObject:@"26"];

answered Nov 17, 2010 at 16:52

eykanal

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1 Comment

JeremyP Over a year ago

That would be great if fontSizeName was an NSArray, but it's an ordinary C array.

mipadi · Accepted Answer · 2010-11-17 16:48:25Z

1

NSString *val = @"26";    // Get this from somewhere
int i;
int idx = -1;
for (i = 0; i < 6; i++) {
    if ([fontSizeName isEqualToString:val]) {
        idx = i;
        break;
    }
}

answered Nov 17, 2010 at 16:48

mipadi

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2 Comments

Eiko Over a year ago

+1 A "nil" sentinel element in the array would make it more flexible though and wouldn't need to hardcode the length. Or use an NSArray instead with indexOfObject:.

JeremyP Over a year ago

@Eiko: I think you should make the NSArray part an answer. I was going to until I saw your comment.

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