MacOS应用 进入:/Users/{User}/Library/Containers/com。{你的公司}。{your app}/Data/Library/Preferences，然后用Xcode打开你的app的pList。

你可以NSLog你设置的每个值，比如:

NSLog(@"%@",[[NSUserDefaults standardDefaults] stringForKey:@"WhateverTheKeyYouSet"]);

在Swift 4.0中

//func dictionaryRepresentation() -> [String : AnyObject]

因为NSUserDefaults.standardUserDefaults()返回[String: AnyObject]

我们将它转换到NSDictionary中。然后用括号'()'把它括起来将允许我们调用。allkeys或。allvalues就像你在任何NSDictionary上一样

 print((UserDefaults.standard.dictionaryRepresentation() as NSDictionary).allKeys)

你可以打印当前所有的NSUserDefaults到日志:

键:

NSLog(@"%@", [[[NSUserDefaults standardUserDefaults] dictionaryRepresentation] allKeys]);

键和值:

NSLog(@"%@", [[NSUserDefaults standardUserDefaults] dictionaryRepresentation]);

对于OS X应用程序，使用默认命令行实用程序更简单，而不是寻找应用程序的默认plist文件。

NAME defaults -- access the Mac OS X user defaults system SYNOPSIS defaults [-currentHost | -host hostname] read [domain [key]] defaults [-currentHost | -host hostname] read-type domain key defaults [-currentHost | -host hostname] write domain { 'plist' | key 'value' } defaults [-currentHost | -host hostname] rename domain old_key new_key defaults [-currentHost | -host hostname] delete [domain [key]] defaults [-currentHost | -host hostname] { domains | find word | help } DESCRIPTION defaults allows users to read, write, and delete Mac OS X user defaults from a command-line shell. Mac OS X applications and other programs use the defaults system to record user preferences and other information that must be maintained when the applications aren't running (such as default font for new documents, or the position of an Info panel). Much of this information is accessible through an appli- cation's Preferences panel, but some of it isn't, such as the position of the Info panel. You can access this information with defaults

例子:

$ defaults read com.apple.Safari
{
    AutoplayPolicyWhitelistConfigurationUpdateDate = "2018-08-24 17:33:48 +0000";
    AutoplayQuirksWhitelistConfigurationUpdateDate = "2018-08-24 17:33:48 +0000";
    DefaultBrowserPromptingState2 = 4;
    ...

我在桌面上保留了模拟器文件夹的快捷方式，在那里保存应用程序，即:

/Users/gary/Library/Application Support/iPhone Simulator/User/Applications

按最近的日期排序，然后进入最近的应用程序文件夹库/首选项，并在plist编辑器中查看文件。