20230724_MBJC_upperpc/ViewModels/MainViewModel.cs

using _20230724_MBJC_upperpc.Common;
using _20230724_MBJC_upperpc.Models;
using _20230724_MBJC_upperpc.Views;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Runtime.Intrinsics.X86;
using System.Text;
using System.Threading.Tasks;
using System.Windows;

namespace _20230724_MBJC_upperpc.ViewModels
{
    public class MainViewModel : NotifyBase
    {

        #region 事件
        /// <summary>
        /// 主界面标签切换事件
        /// </summary>
        public CommandBase NavChangedCommand { get; set; }
        string Title_Name = "";  //设置当前显示的标题 1 浮标 2 接驳盒  3 系统控制  4 日志记录
        #endregion

        private FrameworkElement _pageContent;

        public FrameworkElement PageContent
        {
            get { return _pageContent; }
            set { _pageContent = value; this.DoNotify(); }
        }



        private BeaconModel beacon = new BeaconModel
        {
            ID = 6,
            Datetime = DateTime.Now,
            Position_Distance = 450.6589f,
            Propagationtime = 2.6f,
            Beacon_JD = 112.9635f,
            Beacon_WD = 31.5665f,
            Beacon_Depth = 49.58f,
            Beacon_Roll_Angle = 90,
            Beacon_Pitch_Angle = 0,
            Beacon_Heading_Angle = 0,
            Temp = 24.5f,
            Position_Pitch_Angle = -90,
            Position_Heading_Angle = 90,
            BasicSite_Heading = 0,
            BasicSite_JD = 119.2683f,
            BasicSite_WD = 29.3586f,
            BasicSite_Depth = 4f,

        };

        public BeaconModel Beacon
        {
            get { return beacon; }
            set { beacon = value; this.DoNotify(); }
        }

        public MainViewModel()
        {
            this.NavChangedCommand = new CommandBase();
            this.NavChangedCommand.DoExcute = new Action<object>(DoNavChanged);
            this.NavChangedCommand.DoCanExcute = new Func<object, bool>((o) => true);

            DoNavChanged("FirstPageView");
        }

        public void DoNavChanged(object obj)
        {
            if (Title_Name == obj.ToString())
                return;
            Title_Name = obj.ToString();

            if (Title_Name != "FirstPageView" && Title_Name != "BuoyPlatformView")
            {
                Title_Name = "AnchorPointView";
            }

            //切换页面之前清理一下内存
            tools.ClearMemory(this);


            //首先提示加载界面
            Type type = Type.GetType("_20230724_MBJC_upperpc.Views.ProgressView");
            ConstructorInfo cti = type.GetConstructor(System.Type.EmptyTypes);
            FrameworkElement page = (FrameworkElement)cti.Invoke(null);
            this.PageContent = page;

            type = Type.GetType("_20230724_MBJC_upperpc.Views." + Title_Name);
            cti = type.GetConstructor(System.Type.EmptyTypes);
            page = (FrameworkElement)cti.Invoke(null);
            this.PageContent = page;
        }

    }
}