CODEWITHSUNDEEP
iosobjective-cright-to-leftarabic-support
user1759226
user1759226

Reputation: 23

iOS ObjectiveC: Support Right To Left

To support the Right To Left on my app, I'm using this instructions:

[[UIView appearance] setSemanticContentAttribute:UISemanticContentAttributeForceRightToLeft];

[[UIStackView appearance] setSemanticContentAttribute:UISemanticContentAttributeForceRightToLeft];

[UITextView appearance].textAlignment = NSTextAlignmentRight;

But I have a lot of problems: -I don't understand how to refresh the UI if I need to apply the new alignment in the current view. -In a collection view the alignment doesn't change even if I use:

[[UICollectionView appearance] setSemanticContentAttribute:UISemanticContentAttributeForceRightToLeft];

so I decided to use:

self.sectionsCollectionView.transform = CGAffineTransformMakeScale(-1, 1);

and:

cell.transform = CGAffineTransformMakeScale(-1, 1);

It works, but if I push another view and after I pop to the view with the collection view, it's again aligned to the left until I tap into the section header, after the tap it goes to the right.

Upvotes: 1

Views: 490

Answers (1)

Bappaditya
Bappaditya

Reputation: 9642

As per Apple's documentation,

By default, text alignment in iOS is natural; in OS X, it’s left. Using natural text alignment aligns text on the left in a left-to-right language, and automatically mirrors the alignment for right-to-left languages. For example, if you set the alignment of an NSMutableParagraphStyle object using the setAlignment: method, pass NSNaturalTextAlignment as the parameter.

[[(NSMutableParagraphStyle *)paraStyle setAlignment:NSNaturalTextAlignment];

However, if you want to align a control to the right in a left-to-right language (and to the left in a right-to-left language), get the layout direction, as described in Getting the Layout Direction, and set the alignment to NSLeftTextAlignment for a right-to-left language.

For more details, please refer Supporting Right-to-Left Languages

Upvotes: 2

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