Ios5 从MonoTouch访问iCloud NsubiquiousKeyValueStoreDidChangeExternallyNotification详细信息

在MonoTouch下，我想访问NSUbiquitousKeyValueStoreDidChangeExternallyNotification（iOS5/iCloud key-value inbound update）通知数据：

• NSUbiquitousKeyValueStoreChangeReasonKey->NSNumber
• NSUbiquitousKeyValueStoreChangedKeysKey->NSString的NSArray

有一个示例@，但是上面访问的代码被注释掉了，并且有缺陷（它如何尝试将reason转换为integer是错误的）。我离这里很近：

NSNotificationCenter.DefaultCenter.AddObserver(new NSString("NSUbiquitousKeyValueStoreDidChangeExternallyNotification"), 
delegate(NSNotification n)  
{
    NSDictionary userInfo = n.UserInfo;
    NSNumber reason = (NSNumber)userInfo.ObjectForKey(
        new NSString("NSUbiquitousKeyValueStoreChangeReasonKey"));
    int ireason = reason.IntValue;
    NSArray changedKeys = (NSArray)userInfo.ObjectForKey(
        new NSString("NSUbiquitousKeyValueStoreChangedKeysKey"));
});

我想出了如何将原因作为整数。但是如何将nsstring的NSArray转换为

---

一个简单的字符串[]？？对不起，我以前从未使用过核心Objective-C类型的包装器

Hope this help~使用从NSArray.ValueAt（）方法返回的IntPtr新建NSString并访问所需的值

NSNotificationCenter.DefaultCenter.AddObserver (
    NSUbiquitousKeyValueStore.DidChangeExternallyNotification
    , delegate (NSNotification n)
{
    Console.WriteLine("Cloud notification received");
    NSDictionary userInfo = n.UserInfo;

    NSNumber reason = (NSNumber)userInfo.ObjectForKey(NSUbiquitousKeyValueStore.ChangeReasonKey);
    int ireason = reason.IntValue;
    Console.WriteLine("reason.IntValue: " + ireason);

    NSArray changedKeys = (NSArray)userInfo.ObjectForKey (NSUbiquitousKeyValueStore.ChangedKeysKey);
    var changedKeysList = new System.Collections.Generic.List<string> ();
    for (uint i = 0; i < changedKeys.Count; i++)
    {
        var key = new NSString (changedKeys.ValueAt(i));
        Console.WriteLine("changedKey IntPtr: " + changedKeys.ValueAt(i));
        Console.WriteLine("changedKey (value): " + key);

        changedKeysList.Add (key);
    }
    // now do something with the list...
});

NSNotificationCenter.DefaultCenter.AddObserver(
NSUbiquitousKeyValueStore.DidChangeExternallyNotification
，代表（NSN）
{
Console.WriteLine（“收到云通知”）；
NSDictionary userInfo=n.userInfo；
NSNumber原因=（NSNumber）userInfo.ObjectForKey（NSUbiquitousKeyValueStore.ChangeReasonKey）；
int-ireason=reason.IntValue；
Console.WriteLine（“reason.IntValue:+ireason”）；
NSArray changedKeys=（NSArray）userInfo.ObjectForKey（NSUbiquitousKeyValueStore.ChangedKeysKey）；
var changedKeysList=new System.Collections.Generic.List（）；
对于（uint i=0；i

谢谢@CraigD。如果对其他人有帮助，以下是您发送的枚举值：public enum NSUbiquitousKeyValueStoreChangeReason{ServerChange=0，InitialSyncChange=1，QuotaViolationChange=2}