UILabel分类扩展属性字符串的使用

来源：互联网发布：如何在一个数据区间编辑：程序博客网时间：2024/05/17 09:10

#import <UIKit/UIKit.h>@interface UILabel (AttributedString)- (void)setTextFont:(UIFont *)font atRange:(NSRange)range;- (void)setTextColor:(UIColor *)color atRange:(NSRange)range;- (void)setTextLineSpace:(float)space atRange:(NSRange)range;- (void)setTextFont:(UIFont *)font color:(UIColor *)color atRange:(NSRange)range;- (void)setTextAttributes:(NSDictionary *)attributes atRange:(NSRange)range;@end

#import "UILabel+AttributedString.h"@implementation UILabel (AttributedString)- (void)setTextFont:(UIFont *)font atRange:(NSRange)range{    [self setTextAttributes:@{NSFontAttributeName : font}                    atRange:range];}- (void)setTextColor:(UIColor *)color atRange:(NSRange)range{    [self setTextAttributes:@{NSForegroundColorAttributeName : color}                    atRange:range];}- (void)setTextLineSpace:(float)space atRange:(NSRange)range{    NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:self.text];    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];        [paragraphStyle setLineSpacing:space];//调整行间距        [attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [self.text length])];    self.attributedText = attributedString;    [self sizeToFit];}- (void)setTextFont:(UIFont *)font color:(UIColor *)color atRange:(NSRange)range{    [self setTextAttributes:@{NSFontAttributeName : font,                              NSForegroundColorAttributeName : color}                    atRange:range];}- (void)setTextAttributes:(NSDictionary *)attributes atRange:(NSRange)range{    NSMutableAttributedString *mutableAttributedString = [[NSMutableAttributedString alloc] initWithAttributedString:self.attributedText];        for (NSString *name in attributes)    {        [mutableAttributedString addAttribute:name value:[attributes objectForKey:name] range:range];    }    // [mutableAttributedString setAttributes:attributes range:range]; error        self.attributedText = mutableAttributedString;}@end

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