ios - 替换 NSMutableAttributedString 中的字符

Question

这适用于常规NSString：

NSString *newString = [myString stringByReplacingOccurrencesOfString:@"," withString:@""];

但是没有这样的方法NSMutableAttributedString。我怎样才能删除一个逗号的所有实例NSMutableAttributedString？

Answer 1

let attrString = NSMutableAttributedString(string: "Hello <b>friend<b>")

attrString.mutableString.replaceOccurrencesOfString("<b>", withString: "", options: NSStringCompareOptions.CaseInsensitiveSearch, range: NSRange(location: 0, length: attrString.length))

尝试这个 ：）

Answer 2

在创建属性字符串之前执行此操作，如果可以或取决于您获取它的方式。如果你不能，那么你可以使用replaceCharactersInRange:withString:（或replaceCharactersInRange:withAttributedString:），但你需要知道范围，所以你需要自己搜索和迭代。

Answer 3

NSString *newString= "I want to ,show, you how to achieve this";
NSMutableAttributedString *displayText = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%@",newString]];
[[displayText mutableString] replaceOccurrencesOfString:@"," withString:@"" options:NSCaseInsensitiveSearch range:NSMakeRange(0, displayText.string.length)];

Answer 4

您可以使用设计的 init 使用剥离的字符串初始化属性字符串。不？

Answer 5

该代码可以从我的回答中应用：

NSAttributedString *attributedString = ...;
NSAttributedString *anotherAttributedString = ...; //the string or characters which will replace

while ([attributedString.mutableString containsString:@"replace"]) {
        NSRange range = [attributedString.mutableString rangeOfString:@"replace"];
        [attributedString replaceCharactersInRange:range  withAttributedString:anotherAttributedString];
    }