SparkClient/ViewModel/BaseWindow/MainViewModel.cs

using System.Windows.Input;
using SparkClient.Views;

namespace SparkClient.ViewModel.BaseWindow;

public class MainViewModel: BaseViewModel
{
    
    private static MainViewModel _instance;

    public static MainViewModel Instance => _instance ??= new MainViewModel();

    
    private object _currentViewModel;

    public object CurrentViewModel
    {
        get => _currentViewModel;
        set
        {
            _currentViewModel = value;
            OnPropertyChanged();
        }
    }

    public ICommand ShowHomeCommand { get; }
    public ICommand ShowHelperPageCommand { get; }
    public ICommand ShowSettingsPageCommand { get; }
    public ICommand ShowProfilePageCommand { get; }

    private MainViewModel()
    {
        // 初始化加载 HomeWindow
        CurrentViewModel = new HomeWindowVM(this);

        // 初始化命令
        ShowHomeCommand = new RelayCommand(_ => CurrentViewModel = new HomeWindowVM(this));
        ShowHelperPageCommand = new RelayCommand(_ => CurrentViewModel = new BaseControlVM(this, new HelperPage()));
        // ShowSettingsPageCommand = new RelayCommand(_ => CurrentViewModel = new BaseControlVM(this, new SettingsPage()));
        // ShowProfilePageCommand = new RelayCommand(_ => CurrentViewModel = new BaseControlVM(this, new ProfilePage()));
    }
}