Make UILabel text Right Aligned if the text is in Arabic

Question

I have implemented Language Localization in my iOS App. So, now user can set the Arabic Language in my iPad Application.

I am getting the localized string response from the server and now I want to set this localized string to my UILabel in Right To Left format with Right Alignment.

Update :

My server response is already in RTL format. Now, I just wanted to set the text alignment to right when I have Arabic text in my UILabel.

Right now I have to write code to set the alignment of UILabel based on the language.

So, I just want to know if there is any property available for UILabel by setting which I can make the text of UILabel Right Aligned in case of Arabic Language.

If you set the attributedText property for the label, you can apply a mutable paragraph style with the RTL baseWritingDirection set. But, the label should apply the correct writing direction to the text. If you're using constraints, make sure you have your Leading and Trailing constraints set up correctly. — Jason Coco
check the language like in the question stackoverflow.com/questions/6325073/… and if it is Arabic change the label's alignment. — Khaled Annajar

JaspreetKour JaspreetKour · Accepted Answer · 2017-02-23T12:54:41

For Swift3 //MARK: UILabel extension

extension UILabel {
func decideTextDirection () {
    let tagScheme = [NSLinguisticTagSchemeLanguage]
    let tagger    = NSLinguisticTagger(tagSchemes: tagScheme, options: 0)
    tagger.string = self.text
    let lang      = tagger.tag(at: 0, scheme: NSLinguisticTagSchemeLanguage,
                                      tokenRange: nil, sentenceRange: nil)

    if lang?.range(of:"ar") != nil {
        self.textAlignment = NSTextAlignment.right
    } else {
        self.textAlignment = NSTextAlignment.left
    }
}

to use this add following with your label :

detailLabel.text = details[0]

detailLabel.decideTextDirection()

Make UILabel text Right Aligned if the text is in Arabic

4 Answers