在模拟器中运行时，我有时会使用下面的代码片段打印出NSUserDefaults文件的位置

NSArray *path = NSSearchPathForDirectoriesInDomains(
   NSLibraryDirectory, NSUserDomainMask, YES);
NSString *folder = [path objectAtIndex:0];
NSLog(@"Your NSUserDefaults are stored in this folder: %@/Preferences", folder);

它生成首选项文件夹的路径

你的NSUserDefaults保存在这个文件夹:/Users/castle/Library/Application Support/iPhone Simulator/User/Applications/BC5056A0-F46B-4AF1-A6DC-3A7DAB984960/Library/Preferences

您的NSUserDefaults文件位于首选项文件夹中，并根据您的前缀和应用程序名称命名。

dk.castleandersen.dreamteam.grid.plist

我希望对于实际的设备也是如此。

在Swift中，我们可以使用以下功能:-

斯威夫特3。X & 4.x

获取所有键和值:

for (key, value) in UserDefaults.standard.dictionaryRepresentation() {
    print("\(key) = \(value) \n")
}

检索用户默认值的完整字典表示:

print(Array(UserDefaults.standard.dictionaryRepresentation()))

检索密钥:

// Using dump since the keys are an array of strings.
dump(Array(UserDefaults.standard.dictionaryRepresentation().keys))

检索值:

我们也可以在这里使用dump，但这将返回values数组中每个元素的完整继承层次结构。如果需要关于对象的更多信息，则使用dump，否则使用正常的print语句。

// dump(Array(UserDefaults.standard.dictionaryRepresentation().values))
print(Array(UserDefaults.standard.dictionaryRepresentation().values))

快2.倍

检索用户默认值的完整字典表示:

print(NSUserDefaults.standardUserDefaults().dictionaryRepresentation())

检索密钥:

print(NSUserDefaults.standardUserDefaults().dictionaryRepresentation().keys.array)

检索值:

print(NSUserDefaults.standardUserDefaults().dictionaryRepresentation().values.array)

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。

在模拟器中运行时，我有时会使用下面的代码片段打印出NSUserDefaults文件的位置

NSArray *path = NSSearchPathForDirectoriesInDomains(
   NSLibraryDirectory, NSUserDomainMask, YES);
NSString *folder = [path objectAtIndex:0];
NSLog(@"Your NSUserDefaults are stored in this folder: %@/Preferences", folder);

它生成首选项文件夹的路径

你的NSUserDefaults保存在这个文件夹:/Users/castle/Library/Application Support/iPhone Simulator/User/Applications/BC5056A0-F46B-4AF1-A6DC-3A7DAB984960/Library/Preferences

您的NSUserDefaults文件位于首选项文件夹中，并根据您的前缀和应用程序名称命名。

dk.castleandersen.dreamteam.grid.plist

我希望对于实际的设备也是如此。

我根据Morion的建议构建了这个方法，以便更好地呈现。通过调用[self logAllUserDefaults]使用它

- (void) logAllUserDefaults
{
    NSArray *keys = [[[NSUserDefaults standardUserDefaults] dictionaryRepresentation] allKeys];
    NSArray *values = [[[NSUserDefaults standardUserDefaults] dictionaryRepresentation] allValues];
    for (int i = 0; i < keys.count; i++) {
        NSLog(@"%@: %@", [keys objectAtIndex:i], [values objectAtIndex:i]);
    }
}

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;
    ...