NSTextCheckingResult類 ios內建識別電話號碼，網址等

標籤：

NSDataDetector是NSRegularExpression的子類，主要用於檢測半結構化的資料：日期，地址，電話號碼，Regex等等。
//首先有一段字串
NSString *str = @"www.baidu.comdhfjdfj17701031767";
//根據檢測的類型初始化 這裡是檢測電話號碼和網址
NSDataDetector NSDataDetector *detector = [NSDataDetector dataDetectorWithTypes:NSTextCheckingTypePhoneNumber | NSTextCheckingTypeLink error:&error];
//獲得檢測所得到的數組
 NSArray *matches = [detector matchesInString:str options:0 range:inputRange];
//獲得檢測得到的總數
 //- (NSUInteger)numberOfMatchesInString:(NSString *)string options:(NSMatchingOptions)options range:(NSRange)range;
//第一個檢測到的資料
//- (NSTextCheckingResult *)firstMatchInString:(NSString *)string options:(NSMatchingOptions)options range:(NSRange)range;
for (NSTextCheckingResult *match in matches) {

//當match匹配為網址時設定顏色
    if ([match resultType] == NSTextCheckingTypeLink) {
            NSRange matchRange = [match range];
          if ([self isIndex:index inRange:matchRange]) {
                [attributedString addAttribute:NSForegroundColorAttributeName value:[UIColor grayColor] range:matchRange];
            }
           else {
                [attributedString addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:matchRange];
            }
            [attributedString addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleSingle] range:matchRange];
        }

//當match匹配為電話號碼時設定其attribute
     if ([match resultType] == NSTextCheckingTypePhoneNumber) {
            NSRange matchRange = [match range];   
            if ([self isIndex:index inRange:matchRange]) {
                [attributedString addAttribute:NSForegroundColorAttributeName value:[UIColor grayColor] range:matchRange];
            }
            else {
                [attributedString addAttribute:NSForegroundColorAttributeName value:[UIColor yellowColor] range:matchRange];
            }
            [attributedString addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleSingle] range:matchRange];
        }
 _textLabel.attributedText = attributedString;
}

- (BOOL)isIndex:(CFIndex)index inRange:(NSRange)range

{
    return index > range.location && index < range.location+range.length;
}

    

NSTextCheckingResult類 ios內建識別電話號碼，網址等