我确信,在客观的可可方面,有办法使人类友好地描述档案的延伸。 例如,给予“pdf”以获得“便携式文件格式”,或给予“应用”――和“应用”,或“txt”->“Plain Text”等。
您可以采用<代码>。 UT*Function:
NSString * humanReadableStringForExtension(NSString * extension) {
CFStringRef UTI = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, (CFStringRef)extension, NULL);
NSString * extensionDescription = (NSString *)UTTypeCopyDescription(UTI);
CFRelease(UTI);
return [extensionDescription autorelease];
}
那么,你就能够像:
NSLog(@"pdf: %@", humanReadableStringForExtension(@"pdf"));
NSLog(@"txt: %@", humanReadableStringForExtension(@"txt"));
NSLog(@"app: %@", humanReadableStringForExtension(@"app"));
标识:
pdf: Portable Document Format (PDF)
txt: text
app: application
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