生成唯一的临时文件路径
我想在 Objective-C 中生成唯一的文件路径。我查看了 NSTemporaryDirectory() 但我能得到的最接近的是 这个和
I want to generate unique file paths in Objective-C. I looked at NSTemporaryDirectory() but the closest I could get was to this and this. But in the second one they create such a file. I do not want to create it, I just want an NSString for a unique writable path... I don't need paths to folders, just files. How is this possible?
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您可以使用当前系统日期和时间创建文件名 (
[[NSCalendarDate calendarDate] descriptionWithCalendarFormat:@"%m%d%Y%H%M%S%F"]) ....包括偶数毫秒...使用返回字符串作为唯一文件名...阅读有关日期格式的更多信息 -> http://developer.apple.com/ iphone/library/documentation/cocoa/Conceptual/DatesAndTimes/Articles/LegacyNSCalendarDate.html
You can create file name using present system date and time (
[[NSCalendarDate calendarDate] descriptionWithCalendarFormat:@"%m%d%Y%H%M%S%F"]) .... this include even milliseconds ... use returning string as unique file name ....Read more about date formates -> http://developer.apple.com/iphone/library/documentation/cocoa/Conceptual/DatesAndTimes/Articles/LegacyNSCalendarDate.html