IOS过滤Html标签

  

   

    

     

    
    

     

      - (NSString *)flattenHTML:(NSString *)html trimWhiteSpace:(BOOL)trim {
     
    
   

    

     

    
    

     
    NSScanner *theScanner = [NSScanner scannerWithString:html];
     
    
   

    

     

    
    

     
    NSString *text = nil;
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     
    while ([theScanner isAtEnd] == NO) {
     
    
   

    

     

    
    

     
        // find start of tag
     
    
   

    

     

    
    

     

              [theScanner scanUpToString:@"<" intoString:NULL] ;
     
    
   

    

     

    
    

     
        // find end of tag
     
    
   

    

     

    
    

     

              [theScanner scanUpToString:@">" intoString:&text] ;
     
    
   

    

     

    
    

     
        // replace the found tag with a space
     
    
   

    

     

    
    

     
        //(you can filter multi-spaces out later if you wish)
     
    
   

    

     

    
    

     

              html = [html stringByReplacingOccurrencesOfString:
     
    
   

    

     

    
    

     

                      [ NSString stringWithFormat:@"%@>", text]
     
    
   

    

     

    
    

     

                                                     withString:@""];
     
    
   

    

     

    
    

     
        //NSLog(@"html==%@",html);
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     

          html = [html stringByReplacingOccurrencesOfString:@" " withString:@""];
     
    
   

    

     

    
    

     
    // trim off whitespace
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     
    return trim ? [html stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] : html;
     
    
   

    

     

    
    

     

      }
     
    
  
 

  
 
 

文章来源: zzzili.blog.csdn.net，作者：清雨小竹，版权归原作者所有，如需转载，请联系作者。

原文链接：zzzili.blog.csdn.net/article/details/44305843