iOS NSString 文本不同的颜色 标题+文本字体大小 行间距／删除不需要的字符 ／以及自适应高度

时间：2024-01-13 22:26:14
#import <Foundation/Foundation.h>

@interface TextsForRow : NSObject

@property(nonatomic,copy)NSString * string;

/**

 文本包含: 标题+内容。 使用前设置内容的颜色

 作用：标题颜色 标题+文本字体大小 行间距（10）删除不需要的字符  以及自适应高度

 @param stringTitle title文本

 @param colorTitle title颜色

 @param stringText 内容text

 @return 返回数组3个。 1 返回的 NSMutableAttributedString * strAttebute；；2返回的 宽度0.2f的string，使用时转化 3:高度

 */

+(NSArray *)TextsForRowWithStringTitle:(NSString*)stringTitle ColorWith:(UIColor*)colorTitle textWithStringText:(NSString*)stringText;

@end
#import "TextsForRow.h"

@implementation TextsForRow

+(NSArray *)TextsForRowWithStringTitle:(NSString*)stringTitle ColorWith:(UIColor*)colorTitle textWithStringText:(NSString*)stringText{

    //title+text

    NSString * str1 =[NSString stringWithFormat:@"%@%@",stringTitle,stringText];

    //删除不需要的个别字符

    NSString * str = [str1  stringByReplacingOccurrencesOfString:@"<DIV>" withString:@""];

    str = [str stringByReplacingOccurrencesOfString:@"</DIV>" withString:@""];

    str = [str stringByReplacingOccurrencesOfString:@"<BR>" withString:@""];

    str = [str stringByReplacingOccurrencesOfString:@"</BR>" withString:@""];

    //删除讨厌的字符

    NSRegularExpression * regu2 =[NSRegularExpression regularExpressionWithPattern:@"(?:<|</|>|&nbsp;)" options:NSRegularExpressionCaseInsensitive error:nil];

    NSString *string3 = [regu2 stringByReplacingMatchesInString:str options:NSMatchingReportProgress range:NSMakeRange(, str.length) withTemplate:@""];

    //去掉左右两边的空格

    NSString * kongge = [string3 stringByReplacingOccurrencesOfString:@" " withString:@""];

    //去掉左右两边的空格

    NSString * string = [kongge stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];

    NSMutableAttributedString * strAttebute = [[NSMutableAttributedString alloc] initWithString:string ];

    //设置title颜色

    [strAttebute addAttribute:NSForegroundColorAttributeName value:colorTitle range:NSMakeRange(, stringTitle.length)]

    ;

    //行间距

    NSMutableParagraphStyle * paragraphStyle = [[NSMutableParagraphStyle alloc]init];

    [paragraphStyle setLineSpacing:IPHONEHIGHT()];

    [strAttebute addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(, string.length)];

    //自定义大小

    CGSize contentSize = [string  boundingRectWithSize:CGSizeMake(ScreenWidth-IPHONEWIDTH(),MAXFLOAT ) options:NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:IPHONEWIDTH()]} context:NULL].size;

    CGFloat height = contentSize.height;

    //进行返回

    NSArray * array =@[strAttebute,[NSString stringWithFormat:@"%0.2f",contentSize.width],[NSString stringWithFormat:@"%0.2f",height]];

    return array;

}

@end

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