UIButton上换行显示主标题 副标题

用NSMutableAttributedString实现

NSMutableAttributedString常见方法
为某一范围内文字设置多个属性

- (void)setAttributes:(NSDictionary *)attrs range:(NSRange)range;

为某一范围内文字添加某个属性

- (void)addAttribute:(NSString *)name value:(id)value range:(NSRange)range;

为某一范围内文字添加多个属性

- (void)addAttributes:(NSDictionary *)attrs range:(NSRange)range;

移除某范围内的某个属性

- (void)removeAttribute:(NSString *)name range:(NSRange)range;

常见的属性及说明

NSFontAttributeName 字体
NSParagraphStyleAttributeName 段落格式
NSForegroundColorAttributeName 字体颜色
NSBackgroundColorAttributeName 背景颜色
NSStrikethroughStyleAttributeName 删除线格式
NSUnderlineStyleAttributeName 下划线格式
NSStrokeColorAttributeName 删除线颜色
NSStrokeWidthAttributeName 删除线宽度
NSShadowAttributeName 阴影

以下是实现代码：

self.todayCaloriesButton = [UIButton buttonWithType:UIButtonTypeCustom];[self addSubview:_todayCaloriesButton];[_todayCaloriesButton mas_makeConstraints:^(MASConstraintMaker *make) {make.left.equalTo(self->_anticipateCaloriesButton.mas_right).offset(34);make.top.equalTo(self).offset(20);make.width.mas_equalTo(100);make.height.mas_equalTo(100);}];_todayCaloriesButton.backgroundColor = [UIColor whiteColor];_todayCaloriesButton.layer.masksToBounds = YES;_todayCaloriesButton.layer.cornerRadius = 50;NSMutableAttributedString *titleAttributedString = [[NSMutableAttributedString alloc]initWithString:@"今日卡路里\n1777千夫"];_todayCaloriesButton.titleLabel.lineBreakMode = NSLineBreakByWordWrapping;[titleAttributedString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:17] range:NSMakeRange(0, 5)];//为前五个字设置字体大小[titleAttributedString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:13] range:NSMakeRange(6, 6)];[titleAttributedString addAttribute:NSForegroundColorAttributeName value:[UIColor colorWithRed:0.00f green:0.00f blue:0.00f alpha:1.00f]  range:NSMakeRange(0, 5)];//为前五个字体设置颜色[titleAttributedString addAttribute:NSForegroundColorAttributeName value:[UIColor colorWithRed:0.80f green:0.80f blue:0.80f alpha:1.00f] range:NSMakeRange(6, 6)];NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];paragraphStyle.alignment = NSTextAlignmentCenter;[titleAttributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(6, 6)];//设置剧中风格[_todayCaloriesButton setAttributedTitle:titleAttributedString forState:UIControlStateNormal];[_todayCaloriesButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];

本文来自互联网用户投稿，文章观点仅代表作者本人，不代表本站立场，不承担相关法律责任。如若转载，请注明出处。 如若内容造成侵权/违法违规/事实不符，请点击【内容举报】进行投诉反馈！