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)

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。

在Swift 2.2中

let path = NSSearchPathForDirectoriesInDomains(.LibraryDirectory, .UserDomainMask, true)
let folder = path[0]
NSLog("Your NSUserDefaults are stored in this folder: \(folder)/Preferences")

将打印出NSUserDefaults在Xcode调试控制台的plist文件夹位置。复制路径字符串。打开Finder，选择Go菜单项中的“转到文件夹”，粘贴路径字符串。双击plist文件。你会在Xcode编辑器中看到内容。

只能在模拟器中工作

谢谢@Niels Castle

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;
    ...

使用下面的代码。

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

模拟器应用程序

这个shell脚本搜索应用程序的名称，获取bundle id，并打开包含Plist文件的文件夹。

#!/bin/bash

appname="$1"
[ -z $appname ] && read -p "Application name : " appname

apppath=$(find ~/Library/Developer/CoreSimulator/Devices/ -name "$appname.app" -print -quit)
if [[ ! -z $apppath ]]; then
    appbundle=$(osascript -e "id of app \"$apppath\"")
    find ~/Library/Developer/CoreSimulator/Devices/ -name "$appbundle.plist" -exec bash -c 'open "$(dirname "$1")"' -- {} \;
else
    echo "No application found by that name: $appname.app"
fi

扩展脚本版本

用法:iphone- App -文件夹“My App”

#!/bin/bash
appname="$1"
[ -z "$appname" ] && read -p "Application name : " appname

apppath=$(find ~/Library/Developer/CoreSimulator/Devices -name "$appname.app" -print -quit)
if [[ ! -z $apppath ]]; then
    appbundle=$(osascript -e "id of app \"$apppath\"")
    echo "Found app $appname (${appbundle})"
    echo -e "\033[1;30m$apppath\033[0m"
    plists=$(find ~/Library/Developer/CoreSimulator/Devices -name "$appbundle.plist" -print -quit)
    count=$(echo plists | wc -l | sed "s/ //g")
    if [[ $count -eq 1 ]] && [[ -f "$plists" ]]; then
        echo -e "\033[1;32mUserDefaults found for $appname\033[0m"
        echo -e "\033[1;30m$plists\033[0m"
        plistutil -i "$plists"
        /usr/bin/open $(dirname "$plists")
    elif [[ ${#plists} -gt 0 ]]; then
        echo -e "\033[1;32mUserDefaults found for $appname\033[0m"
        i=1
        while read line; do
            echo "[${i}] ${line} "
            i=$((i+1))
        done < <(echo "$plists")
        echo
        read -p "Select defaults to read: [1-${count}] " choice
        plist=$(echo ${plists} | sed -n "${choice}p")
        plistutil -i "$plist"
        /usr/bin/open $(dirname "$plist")
    else
        echo -e "\033[31mNo UserDefaults plist found for $appname\033[0m"
    fi
else
    echo -e "\033[31mNo application found by that name: $appname.app\033[0m"
fi

发现应用My app (com.organisation.MyApp) /用户/组织/图书馆/开发/ CoreSimulator /设备/ 3 e4c8dc3 - 6 - ff4 - 428 f - a624 b78dbe0b8c83 /数据/集装箱/包/应用程序/ 960 a5232 - 219 d - 4 - c46 - 8 - ca3 App.app - 01 e259d8ddad / 为我的应用程序找到UserDefaults

Mac应用程序

defaults read com.bundleid.app