从firebase的观察者获取数据到另一个函数

using Foundation;
using UIKit;
using Firebase.Core;

[Register("AppDelegate")]
public class AppDelegate : UIApplicationDelegate
{
    public override bool FinishedLaunching(UIApplication app, NSDictionary options)
    {
        // Configure Firebase
        App.Configure();

        return base.FinishedLaunching(app, options);
    }
}

using System;
using Firebase.Database;
using Foundation;

public class FirebaseService
{
    private DatabaseReference _databaseReference;

    public FirebaseService()
    {
        _databaseReference = Database.DefaultInstance.GetRootReference();
    }

    public void GetDataAndProcess(string path, Action<NSDictionary> processData)
    {
        _databaseReference.GetChild(path).ObserveSingleEvent(DataEventType.Value, (snapshot) =>
        {
            if (snapshot.Exists)
            {
                var data = snapshot.GetValue<NSDictionary>();
                processData?.Invoke(data);
            }
            else
            {
                Console.WriteLine("No data found at the specified path.");
            }
        });
    }
}

public class DataProcessor
{
    public void ProcessData(NSDictionary data)
    {
        // 处理数据
        foreach (var key in data.Keys)
        {
            var value = data[key];
            Console.WriteLine($"{key}: {value}");
        }
    }
}

using System;
using UIKit;
using Firebase.Database;
using Foundation;

public class ViewController : UIViewController
{
    private FirebaseService _firebaseService;
    private DataProcessor _dataProcessor;

    public override void ViewDidLoad()
    {
        base.ViewDidLoad();

        _firebaseService = new FirebaseService();
        _dataProcessor = new DataProcessor();

        // 从 Firebase 获取数据并处理
        _firebaseService.GetDataAndProcess("your/path", _dataProcessor.ProcessData);
    }
}

public class FirebaseService
{
    private DatabaseReference _databaseReference;

    public FirebaseService()
    {
        _databaseReference = Database.DefaultInstance.GetRootReference();
    }

    public void GetDataAndProcess(string path, Action<NSDictionary> processData)
    {
        _databaseReference.GetChild(path).ObserveSingleEvent(DataEventType.Value, (snapshot) =>
        {
            if (snapshot.Exists)
            {
                var data = snapshot.GetValue<NSDictionary>();
                processData?.Invoke(data);
            }
            else
            {
                Console.WriteLine("No data found at the specified path.");
            }
        });
    }
}

public class DataProcessor
{
    public void ProcessData(NSDictionary data)
    {
        // 处理数据
        foreach (var key in data.Keys)
        {
            var value = data[key];
            Console.WriteLine($"{key}: {value}");
        }
    }
}