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如何使用我的 Mac 应用程序中CKFetchNotificationChangesOperation的订阅者处理和引导所有错过的通知CKSubscription？- (void)application:(nonnull NSApplication *)application didReceiveRemoteNotification:(nonnull NSDictionary *)userInfo {我对该方法的代码如下，

- (void)application:(nonnull NSApplication *)application didReceiveRemoteNotification:(nonnull NSDictionary *)userInfo {

    NSLog(@"CKSubscription received.");

    CKQueryNotification *cloudKitNotification = [CKQueryNotification notificationFromRemoteNotificationDictionary:userInfo];

    [[NSNotificationCenter defaultCenter] postNotificationName:@"CloudKitUpdated" object:nil userInfo:@{@"ckNotification" : cloudKitNotification}];
}

我的应用程序是一个菜单，我希望它检查任何错过的通知并在单击菜单时正确处理它们。

更新：这是我一直在尝试的代码，但数组始终为空且没有错误。我正在通过运行应用程序、关闭应用程序、删除记录然后再次运行应用程序来进行测试。

 NSMutableArray *array = [NSMutableArray array];
    CKFetchNotificationChangesOperation *operation = [[CKFetchNotificationChangesOperation alloc] initWithPreviousServerChangeToken:nil];
    operation.notificationChangedBlock = ^(CKNotification *notification) {
        [array addObject:notification.notificationID];
    };
    operation.completionBlock = ^{


    };

    operation.fetchNotificationChangesCompletionBlock = ^(CKServerChangeToken *token, NSError *error) {


            NSLog(@"Missed notifications: %@", array);

    };

    [_myContainer addOperation:operation];
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1 回答 1

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NSMutableArray *array = [NSMutableArray array];
CKFetchNotificationChangesOperation *operation = [[CKFetchNotificationChangesOperation alloc] initWithPreviousServerChangeToken:nil];
operation.notificationChangedBlock = ^(CKNotification *notification) {
    [array addObject:notification.notificationID];
};
operation.completionBlock = ^{


};

operation.fetchNotificationChangesCompletionBlock = ^(CKServerChangeToken *token, NSError *error) {


        NSLog(@"Missed notifications: %@", array);

};

[_myContainer addOperation:operation];
于 2015-06-23T19:12:56.033 回答