HKC/DM_Weight/ViewModels/MainWindowViewModel.cs

using MaterialDesignThemes.Wpf;
using Prism.Commands;
using Prism.Events;
using Prism.Mvvm;
using Prism.Regions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media;
using DM_Weight.msg;
using DM_Weight.Port;
using DM_Weight.util;
using DM_Weight.Finger;
using DM_Weight.Views;
using Unity;
using log4net.Repository.Hierarchy;
using log4net;
using System.Windows;

namespace DM_Weight.ViewModels
{
    internal class MainWindowViewModel : BindableBase
    {
        private string _title = "Prism App";   //标题

        private ISnackbarMessageQueue _snackbarMessageQueue = new SnackbarMessageQueue(TimeSpan.FromSeconds(3));

        private SolidColorBrush _colorBrush;


        //private PortUtil _portUtil;

        //private ScreenUtil _screenUtil;

        public SolidColorBrush Background
        {
            get => _colorBrush;
            set => SetProperty(ref _colorBrush, value);
        }

        public ISnackbarMessageQueue SnackbarMessageQueue
        {
            get => _snackbarMessageQueue;
            set => SetProperty(ref _snackbarMessageQueue, value);
        }
        public string Title
        {
            get { return _title; }
            set { SetProperty(ref _title, value); }
        }


        IEventAggregator eventAggregator;


        //public MainWindowViewModel(IEventAggregator eventAggregator, PortUtil portUtil, ScreenUtil screenUtil)
        //{
        //    _portUtil = portUtil;
        //    this.eventAggregator = eventAggregator;
        //    this.eventAggregator.GetEvent<SnackbarEvent>().Subscribe(doMyPrismEvent2);
        //    _screenUtil = screenUtil;
        //}
        private FingerprintUtil _fingerprintUtil;
        IRegionManager _regionManager;
        IUnityContainer _container;
        private readonly ILog logger = LogManager.GetLogger(typeof(PortUtil));
        public MainWindowViewModel(IRegionManager regionManager, IUnityContainer container, IEventAggregator eventAggregator, FingerprintUtil fingerprintUtil)
        {
            //_portUtil = portUtil;
            this.eventAggregator = eventAggregator;
            this.eventAggregator.GetEvent<SnackbarEvent>().Subscribe(doMyPrismEvent2);
            _fingerprintUtil = fingerprintUtil;
            _regionManager = regionManager;
            _container = container;

            System.Windows.Application.Current.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Send, new Action(() =>
            {

                _container.RegisterType<object, LoginWindow>("LoginWindow");
                _regionManager.RequestNavigate("MainRegion", "LoginWindow");

            }));

        }

        void doMyPrismEvent2(AlertMsg msg)
        {
            Application.Current.Dispatcher.BeginInvoke(() =>
            {
                switch (msg.Type)
                {
                    case MsgType.INFO:
                        this.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#00e676"));
                        break;
                    case MsgType.ERROR:
                        this.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#b71c1c"));
                        break;
                    default:
                        this.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#00e676"));
                        break;
                }

                SnackbarMessageQueue.Enqueue(msg.Message);
            });
        }

    }
}