C# 要将目标c函数转换为Xamarin iOS吗

C# 要将目标c函数转换为Xamarin iOS吗,c#,ios,objective-c,binding,xamarin.ios,C#,Ios,Objective C,Binding,Xamarin.ios,我有一个目标c函数 (void)_refreshUserList { [[VoiceMessageController sharedController].channelSwitcher.currentChannel fetchUsersWithCompletion:^(NSArray *users, NSError *error) { NSMutableArray *newUsers = [[NSMutableArray alloc] init];

我有一个目标c函数

(void)_refreshUserList {
    [[VoiceMessageController sharedController].channelSwitcher.currentChannel fetchUsersWithCompletion:^(NSArray *users, NSError *error) {

        NSMutableArray *newUsers = [[NSMutableArray alloc] init];

        [users enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
            [newUsers addObject:obj[kVLChannelUserInfoKeyUser]];
        }];
        if (error) {
            dispatch_async(dispatch_get_main_queue(), ^{

                UIAlertView *errorAlert = [[UIAlertView alloc] initWithTitle:@"Users Fetching Error" message:@"Can't fetch users" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
                [errorAlert show];
            });
        } else {
            self.users = newUsers;

            dispatch_async(dispatch_get_main_queue(), ^{
                [self.tableView reloadData];
            });
        }





    }];

}
我需要使用一个等价的
Xamarin c#
函数

(void)_refreshUserList {
    [[VoiceMessageController sharedController].channelSwitcher.currentChannel fetchUsersWithCompletion:^(NSArray *users, NSError *error) {

        NSMutableArray *newUsers = [[NSMutableArray alloc] init];

        [users enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
            [newUsers addObject:obj[kVLChannelUserInfoKeyUser]];
        }];
        if (error) {
            dispatch_async(dispatch_get_main_queue(), ^{

                UIAlertView *errorAlert = [[UIAlertView alloc] initWithTitle:@"Users Fetching Error" message:@"Can't fetch users" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
                [errorAlert show];
            });
        } else {
            self.users = newUsers;

            dispatch_async(dispatch_get_main_queue(), ^{
                [self.tableView reloadData];
            });
        }





    }];

}
我试图绑定的函数是:

(void)fetchUsersWithCompletion:(void (^)(NSArray *, NSError *))completionHandler;
我能够成功地将其转换为
Xamarin c#
方法,即:

void FetchUsersWithCompletion(Action`<NSArray, NSError> `completionHandler);
void FetchUsersWithCompletion(操作``completionHandler);

现在的问题是我得到的输出是
NSArray
。如何将其转换为
NSObject

我大致算出了这个

这是我的等效c代码:

void fetchusers完成(NSArray[]arg1,NSError arg2)
{
List userid=new List();
for(int i=0;i