比如一个Label的默认间距效果是这样
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然后用一个封装起来的Category来调整这部分文字的行间
[UILabel changeLineSpaceForLabel:cell.describeLabel WithSpace:5.0];
调整后的效果是这样的
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其中5.0就是我自定义的文字间距。
【iOS|UIlabel的行间距和字间距】这是一个
UILabel的Category，他的内部实现是这样的UILabel+ChangeLineSpaceAndWordSpace.h
#import @interface UILabel (ChangeLineSpaceAndWordSpace)/**
*改变行间距
*/
+ (void)changeLineSpaceForLabel:(UILabel *)label WithSpace:(float)space;
/**
*改变字间距
*/
+ (void)changeWordSpaceForLabel:(UILabel *)label WithSpace:(float)space;
/**
*改变行间距和字间距
*/
+ (void)changeSpaceForLabel:(UILabel *)label withLineSpace:(float)lineSpace WordSpace:(float)wordSpace;
@end UILabel+ChangeLineSpaceAndWordSpace.m
#import "UILabel+ChangeLineSpaceAndWordSpace.h"@implementation UILabel (ChangeLineSpaceAndWordSpace)+ (void)changeLineSpaceForLabel:(UILabel *)label WithSpace:(float)space {NSString *labelText = label.text;
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:labelText];
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
[paragraphStyle setLineSpacing:space];
[attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [labelText length])];
label.attributedText = attributedString;
[label sizeToFit];
}+ (void)changeWordSpaceForLabel:(UILabel *)label WithSpace:(float)space {NSString *labelText = label.text;
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:labelText attributes:@{NSKernAttributeName:@(space)}];
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
[attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [labelText length])];
label.attributedText = attributedString;
[label sizeToFit];
}+ (void)changeSpaceForLabel:(UILabel *)label withLineSpace:(float)lineSpace WordSpace:(float)wordSpace {NSString *labelText = label.text;
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:labelText attributes:@{NSKernAttributeName:@(wordSpace)}];
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
[paragraphStyle setLineSpacing:lineSpace];
[attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [labelText length])];
label.attributedText = attributedString;
[label sizeToFit];
}@end
