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自定义NSAttributedString分类

//  NSAttributedString+Additon.h#import 
   
    @interface NSAttributedString (Additon)/// 使用图像和文本生成上下排列的属性文本////// @param image      图像/// @param imageWH    图像宽高/// @param title      标题文字/// @param fontSize   标题字体大小/// @param titleColor 标题颜色/// @param spacing    图像和标题间距////// @return 属性文本+ (instancetype)imageTextWithImage:(UIImage*)image imageWH:(CGFloat)imageWH title:(NSString*)title fontSize:(CGFloat)fontSize titleColor:(UIColor*)titleColor spacing:(CGFloat)spacing;@end
   

自定义NSAttributedString分类

////  NSAttributedString+Additon.m#import "NSAttributedString+Additon.h"@implementation NSAttributedString (Additon)+ (instancetype)imageTextWithImage:(UIImage *)image imageWH:(CGFloat)imageWH title:(NSString *)title fontSize:(CGFloat)fontSize titleColor:(UIColor *)titleColor spacing:(CGFloat)spacing {    // 文本字典    NSDictionary *titleDict = @{NSFontAttributeName : [UIFont systemFontOfSize:fontSize],                                NSForegroundColorAttributeName : titleColor};    NSDictionary *spacingDict = @{NSFontAttributeName : [UIFont systemFontOfSize:spacing]};    // 图片文本    NSTextAttachment *attachment = [[NSTextAttachment alloc] init];    attachment.image = image;    attachment.bounds = CGRectMake(0, 0, imageWH, imageWH);    NSAttributedString *imageText = [NSAttributedString attributedStringWithAttachment:attachment];    // 换行文本    NSAttributedString *lineText = [[NSAttributedString alloc] initWithString:@"\n\n" attributes:spacingDict];    // 按钮文字    NSAttributedString *text = [[NSAttributedString alloc] initWithString:title attributes:titleDict];    // 合并文字    NSMutableAttributedString *attM = [[NSMutableAttributedString alloc] initWithAttributedString:imageText];    [attM appendAttributedString:lineText];    [attM appendAttributedString:text];    return attM.copy;}@end

在按钮中使用图文混排

UIButton *btn = [[UIButton alloc]init];    // 创建图文混排规则(按钮-->图片&文字)    NSAttributedString *attrStr = [NSAttributedString imageTextWithImage:[UIImage imageNamed:imageName] imageWH:40 title:title fontSize:14 titleColor:[UIColor whiteColor] spacing:8];    // 设置图文混排    [btn setAttributedTitle:attrStr forState:UIControlStateNormal];    // 设置自动换行    btn.titleLabel.numberOfLines = 0;    // 设置文字居中    btn.titleLabel.textAlignment = NSTextAlignmentCenter;

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