Question

我有文字是＆＃34; 上帝是伟大的，伟大的上帝绝对！，上帝祝福我。＆＃34 ;我在tableviewcell中显示了此文字，并使用了NSMutableAttributedString。

实施例 1.上帝 2.上帝 3.上帝

当我搜索文字＆＃34;上帝＆＃34;它突出显示像＃＆＃34; god＆＃34;但我需要突出显示像神，上帝和上帝这样的文本，无论它应该突出显示。

码

NSString *initial = [NSString stringWithFormat:@"%@ %d - %d : %@",[appDelegate.arrChapterName objectAtIndex:nBookNo-1],[[arrVerses objectAtIndex:1] integerValue],[[arrVerses objectAtIndex:2] integerValue],[arrVerses objectAtIndex:3]];

        NSMutableAttributedString *mutableAttributedString = [[NSMutableAttributedString alloc] initWithString:initial];
        NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:[NSString stringWithFormat:@"(%@)",searchBar.text] options:kNilOptions error:nil];

        NSRange range = NSMakeRange(0,initial.length);

        [regex enumerateMatchesInString:initial options:kNilOptions range:range usingBlock:^(NSTextCheckingResult *result, NSMatchingFlags flags, BOOL *stop) {

            NSRange subStringRange = [result rangeAtIndex:1];
            [mutableAttributedString addAttribute:NSBackgroundColorAttributeName value:[UIColor lightGrayColor] range:subStringRange];
        }];

            cell.textLabel.attributedText = mutableAttributedString;

Answer 1

考虑使用以下代码替换正则表达式：

NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:[NSString stringWithFormat:@"(%@)",searchBar.text]
                 options:NSRegularExpressionCaseInsensitive error:nil];

有关更多信息和示例，请参阅here。

Answer 2

你走了，

NSString *initial = [NSString stringWithFormat:@"%@ %d - %d : %@",[appDelegate.arrChapterName objectAtIndex:nBookNo-1],[[arrVerses objectAtIndex:1] integerValue],[[arrVerses objectAtIndex:2] integerValue],[arrVerses objectAtIndex:3]];

NSMutableAttributedString *mutableAttributedString = [[NSMutableAttributedString alloc] initWithString:initial];
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:[NSString stringWithFormat:@"(%@)",searchBar.text] options:NSRegularExpressionCaseInsensitive error:nil];

NSRange range = NSMakeRange(0,initial.length);

[regex enumerateMatchesInString:initial options:kNilOptions range:range usingBlock:^(NSTextCheckingResult *result, NSMatchingFlags flags, BOOL *stop) {

    NSRange subStringRange = [result rangeAtIndex:1];
    [mutableAttributedString addAttribute:NSBackgroundColorAttributeName value:[UIFont boldSystemFontOfSize:12.0] range:subStringRange];
}];

cell.textLabel.attributedText = mutableAttributedString;

突出显示低和＆amp;由NSMutableAttributedString使用的大写文本

2 个答案: