如何保存(和检索)NSAttributedString在NSDictionary中 [英] How to save (and retrieve) NSAttributedString in a NSDictionary
本文介绍了如何保存(和检索)NSAttributedString在NSDictionary中的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试将XML数据保存并检索到文件。
I am trying to save and retrieve XML data to a file.
为此,我使用 NSDictionary
的 writeToFile:
问题是,如何使用 NSDictionary
的在磁盘上的文件中写入和检索属性字符串> writeToFile:
?
推荐答案
如果你需要比存档对象更便携的东西, NSAttributedString:
If you need something more portable than archived object consider using RTF representation of NSAttributedString:
NSAttributedString* attrString = [[NSAttributedString alloc] initWithString:@"Attributed String"
attributes:@{ NSForegroundColorAttributeName: [NSColor redColor]}];
NSData* rtfData = [attrString RTFFromRange:NSMakeRange(0, attrString.length) documentAttributes:nil];
[rtfData writeToFile:@"string.rtf" atomically:YES];
您可以读回:
NSData* rtfData = [NSData dataWithContentsOfFile:@"string.rtf"];
NSAttributedString* attrString = [[NSAttributedString alloc] initWithRTF:rtfData documentAttributes:nil];
此外,由于RTF是一个简单的文本格式,您可以将RTF数据转换为NSString并将其存储为纯文本在字典中。
Also since RTF is a simple text format you can convert RTF data to NSString and store it as plain text in a dictionary.
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