以编程方式读取 iPhone 设置(精确设置 -> 常规 -> 日期和时间 -> 自动设置)

问题描述

我们正在开发一个 iPhone 应用程序，我需要为其读取 iPhone 设置值(确切地说是设置->常规->日期和时间->自动设置"的状态).有什么简单/困难的方法可以找出这个值吗?任何提示和技巧都将受到高度赞赏.

We are developing an iPhone application for which i need to read iPhone Settings value (precisely the status of 'Settings->General->Date & Time->Set Automatically'). Is there any way easy/difficult way to find out that value? Any tips and tricks will be highly appreciated.

推荐答案

你可以使用下面的代码(我是通过检查/var/mobile/Library/Preferences/的内容才发现的 我 iPad 上的目录):

You can use the following code (I just found this out by examining the contents of the /var/mobile/Library/Preferences/ directory on my iPad):

NSDictionary *pref = [[NSUserDefaults standardUserDefaults] persistentDomainForName:@"com.apple.timed"];
BOOL autotime = [[pref objectForKey:@"TMAutomaticTimeEnabled"] boolValue];
NSLog(@"Automatic time is %@", autotime ? @"enabled" : @"disabled");

这些密钥未记录在案，您可能不应该在 AppStore 应用程序中使用它们.不过，您可以在内部应用或越狱设备的软件中安全地使用它们.

These keys are undocumented and you should probably not use them in an AppStore app. You can, however, safely use them in in-house apps or softwares for jailbroken devices.

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