CODEWITHSUNDEEP
objective-cios
timpone
timpone

Reputation: 19969

not sure why I can access this array value with objectAtIndex

not an objective-c programmer but am not sure why I can't access this value:

NSMutableArray *colorsArray=[[NSMutableArray alloc] init];
[colorsArray addObject:[UIColor whiteColor]];
[colorsArray addObject:[UIColor blueColor]];
[view setBackgroundColor:[UIColor [colorsArray objectAtIndex:0]]];

I get an expected identifier but syntax looks ok to me. Any idea what I'm doing wrong?

thx in advance

Upvotes: 0

Views: 49

Answers (1)

driis
driis

Reputation: 164331

The last line should be:

[view setBackgroundColor:[colorsArray objectAtIndex:0]];

You put color instances into the array, so you should just use that to get them out.

I think the confusion comes from the calling of UIColor class methods whiteColor and ´blueColor` in the lines before. In Objective-C, a message is sent by identifying the receiver class or instance and then specifying the selector part in brackets.

Upvotes: 2

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