CoreText Horizontal Center Alignment of Text

Question

I'm using CoreText and I want to make it so my NSMutableAttributedString always center aligns its text. This is the code I'm using and it isn't working:

CTTextAlignment paragraphAlignment = kCTCenterTextAlignment;
    CTParagraphStyleSetting paragraphSettings[1] = {{kCTParagraphStyleSpecifierAlignment, sizeof(CTTextAlignment), &paragraphAlignment}};
CTParagraphStyleRef paragraphStyle = CTParagraphStyleCreate(paragraphSettings, 1);

text = [[NSMutableAttributedString alloc] initWithString:@"" attributes:[NSDictionary dictionaryWithObjectsAndKeys: (id)paragraphStyle, (NSString*)kCTParagraphStyleAttributeName, nil]];

Does anyone have any idea how to do this correctly?

Answer 1

Other solution without to use CoreText if your app is compatible with 10.10 or upper, it is to use NSParagraphStyle.

NSMutableParagraphStyle *rectStyle = NSMutableParagraphStyle.defaultParagraphStyle.mutableCopy;
rectStyle.lineBreakMode = NSLineBreakByClipping;
rectStyle.alignment = NSTextAlignmentCenter;

NSMutableAttributedString *att = [[NSMutableAttributedString alloc] initWithString:myText attributes:@{NSParagraphStyleAttributeName : rectStyle}];