清除 NSUserDefaults [英] Clearing NSUserDefaults

问题描述

我使用 +[NSUserDefaults standardUserDefaults] 来存储应用程序设置.这包括大约十几个字符串值.是否可以永久删除这些值而不是将它们设置为默认值?

I'm using +[NSUserDefaults standardUserDefaults] to store application settings. This consists of roughly a dozen string values. Is it possible to delete these values permanently instead of just setting them to a default value?

推荐答案

您可以像这样删除应用程序的持久域:

You can remove the application's persistent domain like this:

NSString *appDomain = [[NSBundle mainBundle] bundleIdentifier];
[[NSUserDefaults standardUserDefaults] removePersistentDomainForName:appDomain];

在 Swift 3 及更高版本中:

In Swift 3 and later:

if let bundleID = Bundle.main.bundleIdentifier {
    UserDefaults.standard.removePersistentDomain(forName: bundleID)
}

这与@samvermette 的回答相似，但 IMO 更简洁一些.

This is similar to the answer by @samvermette but is a little bit cleaner IMO.

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