Objective-C: if lineHeightMutiple, maximumLineHeight, minmumLineHeight do not work in some fonts, try setLineSpacing

I experienced that the following codes do not work in some fonts — Padauk, Myanmar3 and maybe and so on.

NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.lineHeightMultiple = regularFont.pointSize * 1.2;
paragraphStyle.maximumLineHeight = regularFont.pointSize * 1.5;
paragraphStyle.minimumLineHeight = regularFont.pointSize * 1.5;

Change to:

[paragraphStyle setLineSpacing:10];