How Can I indent only first line of multiline UILabel in iOS?

问题

I want to add an image in start of UILabel. Label is multiline. If I use contentInset, it indent the whole label but I want to indent first line only.

I have tried this so far, this doesn't work for me.

    UIEdgeInsets titleInsets = UIEdgeInsetsMake(0.0, 40.0, 0.0, 0.0);
    valueLabel.contentInset = titleInsets;

It should look like this.

回答1:

@DavidCaunt suggestion worked for me. I am sharing code here.

NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc] init];
style.firstLineHeadIndent = 50;

[attributedText addAttribute:NSParagraphStyleAttributeName value:style range:range];

[valueLabel setAttributedText:attributedText];

回答2:

As a user716216 pointed, additionally - we can use a tab with defined indent value:

NSMutableParagraphStyle *paragraphStyle = [NSMutableParagraphStyle new];
paragraphStyle.headIndent = 50;

label.attributedText = [[NSAttributedString alloc] initWithString:
    @"\tHow can i add image like this in start of UILabel? Label is multiline.........."
    attributes:@{NSParagraphStyleAttributeName: paragraphStyle}];

回答3:

Here's how you can do this in Interface Builder:

来源：https://stackoverflow.com/questions/21430685/how-can-i-indent-only-first-line-of-multiline-uilabel-in-ios