问题
I am trying to use CTFontCreateWithNameAndOptions() from CoreText and the linker is saying "Symbol(s) not found", specifically for _CTFontCreateWithNameAndOptions. I added CoreText.framework and am importing <CoreText/CoreText.h>. It compiles fine, but the linker fails.
Here's the declaration in CTFont.h:
CTFontRef CTFontCreateWithNameAndOptions(
CFStringRef name,
CGFloat size,
const CGAffineTransform *matrix,
CTFontOptions options ) CT_AVAILABLE_STARTING( __MAC_10_6, __IPHONE_3_2);
Here's the actual call:
CTFontRef font = CTFontCreateWithNameAndOptions( (CFStringRef)@"HelveticaNeue-Bold" , 14.0f , NULL , kCTFontOptionsDefault ) ;
Anybody have any ideas?
My iOS app is linking against the 4.2 framework.
回答1:
I had the same problem. _CTFontCreateWithNameAndOptions is not part of the CoreText framework for iOS, it is part of CoreText framework for OS X only. I reported a documentation bug.
回答2:
You need to add the CoreText.framework to your project.
- Go to the project settings
- Select the appropriate target
- Click Build Phases
- Expand Link Binary With Libraries
- Click + to add, and find CoreText.Framework, as per screenshot:
来源：https://stackoverflow.com/questions/4419283/linker-cant-find-ctfontcreatewithnameandoptions