Re: stringWithFormat / Rendering Text (iOS)
Re: stringWithFormat / Rendering Text (iOS)
- Subject: Re: stringWithFormat / Rendering Text (iOS)
- From: Manfred Schwind <email@hidden>
- Date: Thu, 24 May 2012 16:36:28 +0200
> CGContextShowTextAtPoint(contextRef, 0, 40,
> [textToDraw UTF8String], [textToDraw length]);
One bug I see here: you're passing a wrong length parameter.
CGContextShowTextAtPoint expects the length of the char array (number of bytes of the UTF-8 encoded string), but you'e passing the number of Unicode characters in the string. That's not the same; one character may be represented by multiple chars in UTF-8 encoding.
E.g. use it this way:
const char *myUTF8String = [textToDraw UTF8String];
CGContextShowTextAtPoint(contextRef, 0, 40,
myUTF8String, strlen(myUTF8String));
Regards,
Mani
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