面对崩溃来检查NSMutableAttributedString中的特殊字符

I have a NSString stored in cell.lblTitle.text. I am converting this NSString to NSMutableAttributedString with following code.

我有一个存储在cell.lblTitle.text中的NSString。我正在使用以下代码将此NSString转换为NSMutableAttributedString。

text = [[NSMutableAttributedString alloc] initWithData:[cell.lblTitle.text dataUsingEncoding:NSUTF8StringEncoding]
                                               options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType, NSCharacterEncodingDocumentAttribute: @(NSUTF8StringEncoding)}
                                    documentAttributes:nil error:nil];

[text setAttributes:@{NSFontAttributeName:labelFont} range:NSMakeRange(0, [text length])];
[text addAttribute:NSForegroundColorAttributeName
             value:[UIColor darkGrayColor]
             range:NSMakeRange(0, [text length])];

When I print cell.lblTitle.text and its length in console then the following is my output:

当我在控制台中打印cell.lblTitle.text及其长度时，以下是我的输出：

po cell.lblTitle.text

Address: HM<MM-
UU@FF-
Mobile,
Alabama,
123456-
United States

po [cell.lblTitle.text length]
61

And when I print text which is my NSMutableAttributedString. The output in console is:

当我打印文本时，我的NSMutableAttributedString。控制台中的输出是：

po text
Address: HM{
    NSColor = "UIDeviceWhiteColorSpace 0.333333 1";
    NSFont = "<UICTFont: 0x7aebc0f0> font-family: \"Futura-Medium\"; font-weight: normal; font-style: normal; font-size: 15.00pt";
}

po [text length]
11

Following is my crash log:

以下是我的崩溃日志：

*** Terminating app due to uncaught exception 'NSRangeException', reason: 'NSMutableRLEArray objectAtIndex:effectiveRange:: Out of bounds'

***由于未捕获的异常'NSRangeException'而终止应用程序，原因：'NSMutableRLEArray objectAtIndex：effectiveRange :: Out of bounds'

So, the string after special character "<" is not identified and my app crashes. How can I manage this special character "<" so I get the output [text length] = 61.

因此，特殊字符“<”之后的字符串未被识别，我的应用程序崩溃。如何管理这个特殊字符“<”，所以我得到输出[文本长度] = 61。

Any help would be appreciated.

任何帮助，将不胜感激。

1 个解决方案

#1

Your text isn't html so don't try to create it as such. Just use initWithString: to create the attributed string directly from the text.

你的文字不是HTML，所以不要试图创建它。只需使用initWithString：直接从文本创建属性字符串。