Re: Adding attributes to NSMutableAttributedString
Re: Adding attributes to NSMutableAttributedString
- Subject: Re: Adding attributes to NSMutableAttributedString
- From: Ken Thomases <email@hidden>
- Date: Mon, 14 Jun 2010 14:08:39 -0500
On Jun 10, 2010, at 5:18 PM, Tom Korsgren wrote:
> I'm trying to add some attributes to a NSMutableAttributedString using the code below but only get errors.
>
> NSMutableAttributedString *string = @"aaaaaaaaaaaaaaaaaaaaaaa";
This line is wrong. You are taking a NSString literal object pointer and assigning it to a pointer to an NSMutableAttributedString. The compiler should be giving you a warning.
First, NSString is not mutable. Second, it's not an attributed string.
> In the log the following is printed:
> aaaaaaaaaaaaaaaaaaaaaaa 1 2
> *** -[NSCFString addAttribute:value:range:]: unrecognized selector sent to instance 0x30b0
> *** -[NSCFString addAttribute:value:range:]: unrecognized selector sent to instance 0x30b0
NSCFString is a concrete implementation class within the NSString class cluster. Its appearance in the above messages is part of the clue as to the problem. It's not any variety, let alone a mutable variety, of attributed string.
Regards,
Ken
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