是否可以通过编程方式为mac os x打开/关闭“请勿打扰”，这意味着通过代码。我已经通过谷歌做了一些研究，例如：
通过Automator脚本applescripting notification center scheduling do not disturb。 顺便说一句，我没有让它工作，当我开始通知NotificationCenter时，请勿打扰开关仍然关闭
按代码programmatic equivalent of defaults write command e.g. how to use NSUserDefaults编写默认值，但是如何使用args -currentHost（在上面的链接文章中提到）
答案 0 :(得分：17)
不幸的是（但并不令人惊讶），没有用于处理用户通知偏好的公共API，其中一个是请勿打扰模式（DND）。
然而，如果您希望在应用程序中提供打开和关闭DND的功能，那么实际上并不是运气不好：有三种方式供您选择。
这是一个philastokes的AppleScript，它考虑到选项 - 点击菜单栏中的通知中心图标正是我们想要的：它切换了DND模式！
(* Copyright © philastokes from applehelpwriter.com *)
(* Link: http://applehelpwriter.com/2014/12/10/applescript-toggle-notification-centre-yosemite *)
tell application "System Events"
tell application process "SystemUIServer"
try
(* Replace "Notification Center" with "NotificationCenter"
here if you're targeting OS X 10.10 *)
if exists menu bar item "Notification Center, Do Not Disturb enabled" of menu bar 2 then
key down option
(* Replace "Notification Center" with "NotificationCenter"
here if you're targeting OS X 10.10 *)
click menu bar item "Notification Center, Do Not Disturb enabled" of menu bar 2
key up option
else
key down option
click menu bar item "Notification Center" of menu bar 2
key up option
end if
on error
key up option
end try
end tell
end tell
请注意，如果您的目标是OS X 10.10，则需要将
"Notification Center"替换为"NotificationCenter"此外，执行此代码需要您的应用程序为其启用辅助功能。
最后一步是将其包装成Objctive-C / Swift代码：
NSString *source = ... // the AppleScript code
NSAppleScript *script = [[NSAppleScript alloc] initWithSource: source];
NSDictionary *errorInfo = nil;
[script executeAndReturnError: &errorInfo];
我们可以使用系统中提供的辅助功能API，而不是让AppleScript引擎处理用户交互，而不是让它们自行处理：
执行此代码需要您的应用程序启用辅助功能。
pid_t SystemUIServerPID = [[NSRunningApplication runningApplicationsWithBundleIdentifier:
@"com.apple.systemuiserver"].firstObject processIdentifier];
assert(SystemUIServerPID != 0);
AXUIElementRef target = AXUIElementCreateApplication(SystemUIServerPID);
assert(target != nil);
CFArrayRef attributes = nil;
AXUIElementCopyAttributeNames(target, &attributes);
assert([(__bridge NSArray *)attributes containsObject: @"AXExtrasMenuBar"]);
CFTypeRef menubar;
AXUIElementCopyAttributeValue(target, CFSTR("AXExtrasMenuBar"), &menubar);
CFTypeRef children;
AXUIElementCopyAttributeValue(menubar, CFSTR("AXChildren"), &children);
// XXX: I hate mixing CF and Objective-C like this but it's just a PoC code.
// Anyway, I'm sorry
NSArray *items = (__bridge NSArray *)children;
for (id x in items) {
AXUIElementRef child = (__bridge AXUIElementRef)x;
CFTypeRef title;
AXUIElementCopyAttributeValue(child, CFSTR("AXTitle"), &title);
assert(CFGetTypeID(title) == CFStringGetTypeID());
// XXX: the proper check would be to match the whole "Notification Center" string,
// but on OS X 10.10 it's "NotificationCenter" (without the space in-between) and
// I don't feel like having two conditionals here
if (CFStringHasPrefix(title, CFSTR("Notification"))) {
optionKeyDown();
AXUIElementPerformAction(child, kAXPressAction);
optionKeyUp();
break;
}
}
其中optionKeyDown()和optionKeyUp()是
#define kOptionKeyCode (58)
static void optionKeyDown(void)
{
CGEventRef e = CGEventCreateKeyboardEvent(NULL, kOptionKeyCode, true);
CGEventPost(kCGSessionEventTap, e);
CFRelease(e);
}
static void optionKeyUp(void)
{
CGEventRef e = CGEventCreateKeyboardEvent(NULL, kOptionKeyCode, false);
CGEventPost(kCGSessionEventTap, e);
CFRelease(e);
}
您可能已经注意到，您可以通过将模式的范围设置为00:00到23:59，通过通知首选项窗格启用免打扰模式。禁用DND只是取消选中复选框。
以下是Notifications.prefPane中的内容：
void turnDoNotDisturbOn(void)
{
// The trick is to set DND time range from 00:00 (0 minutes) to 23:59 (1439 minutes),
// so it will always be on
CFPreferencesSetValue(CFSTR("dndStart"), (__bridge CFPropertyListRef)(@(0.0f)),
CFSTR("com.apple.notificationcenterui"),
kCFPreferencesCurrentUser, kCFPreferencesCurrentHost);
CFPreferencesSetValue(CFSTR("dndEnd"), (__bridge CFPropertyListRef)(@(1440.f)),
CFSTR("com.apple.notificationcenterui"),
kCFPreferencesCurrentUser, kCFPreferencesCurrentHost);
CFPreferencesSetValue(CFSTR("doNotDisturb"), (__bridge CFPropertyListRef)(@(YES)),
CFSTR("com.apple.notificationcenterui"),
kCFPreferencesCurrentUser, kCFPreferencesCurrentHost);
// Notify all the related daemons that we have changed Do Not Disturb preferences
commitDoNotDisturbChanges();
}
void turnDoNotDisturbOff()
{
CFPreferencesSetValue(CFSTR("dndStart"), NULL,
CFSTR("com.apple.notificationcenterui"),
kCFPreferencesCurrentUser, kCFPreferencesCurrentHost);
CFPreferencesSetValue(CFSTR("dndEnd"), NULL,
CFSTR("com.apple.notificationcenterui"),
kCFPreferencesCurrentUser, kCFPreferencesCurrentHost);
CFPreferencesSetValue(CFSTR("doNotDisturb"), (__bridge CFPropertyListRef)(@(NO)),
CFSTR("com.apple.notificationcenterui"),
kCFPreferencesCurrentUser, kCFPreferencesCurrentHost);
commitDoNotDisturbChanges();
}
void commitDoNotDisturbChanges(void)
{
/// XXX: I'm using kCFPreferencesCurrentUser placeholder here which means that this code must
/// be run under regular user's account (not root/admin). If you're going to run this code
/// from a privileged helper, use kCFPreferencesAnyUser in order to toggle DND for all users
/// or drop privileges and use kCFPreferencesCurrentUser.
CFPreferencesSynchronize(CFSTR("com.apple.notificationcenterui"), kCFPreferencesCurrentUser, kCFPreferencesCurrentHost);
[[NSDistributedNotificationCenter defaultCenter] postNotificationName: @"com.apple.notificationcenterui.dndprefs_changed"
object: nil userInfo: nil
deliverImmediately: YES];
}