NSAttributedString - get font attributes

Question

I need to get info about my attributed string but can't figure out how. I'm getting this dictionary:

2013-11-04 18:06:10.628 App[1895:60b] {
    NSColor = "UIDeviceWhiteColorSpace 0.3 1";
    NSFont = "<UICTFont: 0x17d8d4c0> font-family: \".HelveticaNeueInterface-MediumP4\"; font-weight: bold; font-style: normal; font-size: 17.00pt";
    NSUnderline = 0;
}

It is easy to check the underline with:

[attrs objectForKey:@"NSUnderline"]

But how to get info about font like the font-style, font-weight etc.

Thanks for any help

Answer 1

You get the font from:

UIFont *font = attrs[NSFontAttributeName];

The issue is determining whether it is bold or not. There is no property for that. The only option is to look at the fontName of the font and see if contains "Bold" or some other similar term. Not all bold fonts have "Bold" in the name.

The same issue applies for determining of the font is italic or note. You have to look at the fontName and look for things like "Italic" or "Oblique".

Answer 2

UIFont has fontDescriptor starting iOS7 so you can try out that..

// Returns a font descriptor which describes the font.
    - (UIFontDescriptor *)fontDescriptor NS_AVAILABLE_IOS(7_0);

Usage:

// To get font size from attributed string's attributes
UIFont *font = attributes[NSFontAttributeName];
UIFontDescriptor *fontProperties = font.fontDescriptor;
NSNumber *sizeNumber = fontProperties.fontAttributes[UIFontDescriptorSizeAttribute];
NSLog(@"%@, FONTSIZE = %f",fontProperties.fontAttributes, [sizeNumber floatValue]);

Similar to UIFontDescriptorSizeAttribute you can find other traits like UIFontDescriptorFaceAttribute, UIFontDescriptorNameAttribute etc as mentioned in the docs.