iphone - 从文件加载NSAttributedString

Question

有没有一种方法可以在文件中包含某种格式的富文本，然后将文件加载到NSAttributedString中？我研究了将.rtf文件加载到NSAttributed字符串中:

NSString *filePathFooter = [[NSBundle mainBundle] pathForResource:kFooterFileName ofType:@"rtf"];

NSError *error = nil;
NSAttributedString *string = [[NSAttributedString alloc] initWithFileURL:[NSURL URLWithString:filePathFooter]
                                                                 options:nil
                                                      documentAttributes:NULL
                                                                   error:&error];

但这给我留下了:

Error Domain=NSCocoaErrorDomain Code=258 "The operation couldn’t be completed. (Cocoa error 258.)"

有没有办法做到这一点？

Answer 1

请改用URLForResource，然后像这样传递结果URL:

NSURL *url = [[NSBundle mainBundle] URLForResource:kFooterFileName withExtension:@"rtf"];

NSError *error = nil;
NSAttributedString *string = [[NSAttributedString alloc] initWithFileURL:url
                                                                 options:nil
                                                      documentAttributes:NULL
                                                                   error:&error];