HTML字符串使用\ U00002028 \ n iOS转换为属性字符串 [英] Html string convert into attributed string with \U00002028\n ios
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问题描述
HTML字符串从服务器获取，我尝试将其转换为属性字符串.使用
Html string get it from server I tried convert into attributed string. using
NSAttributedString *attributedString = [[NSAttributedString alloc]
initWithData: [htmlString dataUsingEncoding:NSUnicodeStringEncoding]
options: @{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType, NSCharacterEncodingDocumentAttribute: [NSNumber numberWithInt:NSUTF8StringEncoding] }
documentAttributes: nil
error: nil
];
具有\ U00002028 \ n的属性字符串会导致显示字符串在文本中出现间距和换行符.如何能够删除此类内容.
attribute string having \U00002028\n that causes display string got spacing and line breaking in text.How can be able to remove such thing.
推荐答案
NSMutableAttributedString中的修剪前导空格和尾随空格
Trim leading and trailing whitespaces from NSMutableAttributedString
NSString * _strAchievementMsg= @" Hi Test the White space ";
NSString * htmlString = [NSString stringWithFormat:@"<html><div>%@</div></html>",_strAchievementMsg];
NSMutableAttributedString *attString = [[NSMutableAttributedString alloc]
initWithData: [htmlString dataUsingEncoding:NSUnicodeStringEncoding]
options: @{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType, NSCharacterEncodingDocumentAttribute: [NSNumber numberWithInt:NSUTF8StringEncoding] }
documentAttributes: nil
error: nil
];
NSCharacterSet *charSet = [NSCharacterSet whitespaceAndNewlineCharacterSet];
NSRange range = [attString.string rangeOfCharacterFromSet:charSet];
while (range.length != 0 && range.location == 0)
{
[attString replaceCharactersInRange:range withString:@""];
range = [attString.string rangeOfCharacterFromSet:charSet];
}
// Trim trailing whitespace and newlines.
range = [attString.string rangeOfCharacterFromSet:charSet
options:NSBackwardsSearch];
while (range.length != 0 && NSMaxRange(range) == attString.length)
{
[attString replaceCharactersInRange:range
withString:@""];
range = [attString.string rangeOfCharacterFromSet:charSet
options:NSBackwardsSearch];
}
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