NSAttributedString add text alignment

user_242769 0
Viewed 117735

How can I add text alignment attribute to an NSAttributedString to center the text?

Edit: Am I doing anything wrong? It doesn't seem to change the alignment.

CTParagraphStyleSetting setting;
setting.spec = kCTParagraphStyleSpecifierAlignment;
setting.valueSize = kCTCenterTextAlignment;

CTParagraphStyleSetting settings[1] = {
    {kCTParagraphStyleSpecifierAlignment, sizeof(CGFloat), &setting},           
};

CTParagraphStyleRef paragraph = CTParagraphStyleCreate(settings, sizeof(setting));

NSMutableAttributedString *mutableAttributed = [[NSMutableAttributedString alloc] initWithAttributedString:self.attributedString];
[mutableAttributed addAttributes:[NSDictionary dictionaryWithObjectsAndKeys:(NSObject*)paragraph ,(NSString*) kCTParagraphStyleAttributeName, nil] range:_selectedRange];
core-text nsattributedstring objective-c ios
9 Answers

Swift 4 answer:

// Define paragraph style - you got to pass it along to NSAttributedString constructor
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .center

// Define attributed string attributes
let attributes = [NSAttributedStringKey.paragraphStyle: paragraphStyle]

let attributedString = NSAttributedString(string:"Test", attributes: attributes)
user_30745150

In swift 4:

    let paraStyle = NSMutableParagraphStyle.init()
    paraStyle.alignment = .left

    let str = "Test Message"
    let attribute = [NSAttributedStringKey.font: UIFont.boldSystemFont(ofSize: 12)]

    let attrMessage = NSMutableAttributedString(string: str, attributes: attribute)


    attrMessage.addAttribute(kCTParagraphStyleAttributeName as NSAttributedStringKey, value: paraStyle, range: NSMakeRange(0, str.count))
user_16810250

If you use UILabel, just use label.textAlignment = .center instead

user_19798820

Xamarin.iOS

NSMutableParagraphStyle paragraphStyle = new NSMutableParagraphStyle();
paragraphStyle.HyphenationFactor = 1.0f;
var hyphenAttribute = new UIStringAttributes();
hyphenAttribute.ParagraphStyle = paragraphStyle;
var attributedString = new NSAttributedString(str: name, attributes: hyphenAttribute);
user_151860
Related