我正在尝试以编程方式更改配置的屏幕保护程序。
如果我做
$ defaults -currentHost read com.apple.screensaver
{
CleanExit = YES;
PrefsVersion = 100;
idleTime = 600;
moduleDict = {
moduleName = XXXX;
path = "/Users/juanjo/Library/Screen Savers/XXXX.saver";
type = 0;
};
showClock = 0;
}
我可以看到这个信息,甚至可以使用write参数更新它。
此设置不可通过NSUserDefaults访问,但可通过CF访问。
我可以通过代码做到这一点
var moduleDict = CFPreferencesCopyAppValue("moduleDict", "com.apple.screensaver") as CFDictionary
但当我试图从"dict"中获得一个值时,程序在这一行崩溃了:
var saverName = CFDictionaryGetValue(moduleDict, "moduleName")
称为CCD_ 1。
那么,你知道我如何读取这些值并进行回写吗?
正如我在Cocoa Dev列表中提到的,我可以用这种方式完成它。
读数:
var moduleDict = CFPreferencesCopyAppValue("moduleDict", "com.apple.screensaver") as NSDictionary
var saverName = moduleDict["moduleName"] as String!
写作:
var moduleDict = CFPreferencesCopyAppValue("moduleDict", "com.apple.screensaver") as NSDictionary
var mutable = moduleDict.mutableCopy() as NSMutableDictionary
mutable["moduleName"] = "MyScreenSaver"
mutable["path"] = mySaverPath
CFPreferencesSetValue("moduleDict", mutable as CFPropertyList, "com.apple.screensaver", kCFPreferencesCurrentUser, kCFPreferencesCurrentHost)
CFPreferencesAppSynchronize("com.apple.screensaver")