提示框

弹窗在View中，TipDialog在ViewModel中，通过Messenger通信
使用方式：在ViewModel中使用：

 TipDialog.Show(TipType.Success, "支付成功");

    /// <summary>
    /// 提示类型（用于提示弹窗TIpDialog）
    /// </summary>
    public enum TipType
    {
        /// <summary>
        /// 网络不稳定
        /// </summary>
        BadInternet,
        /// <summary>
        /// 成功
        /// </summary>
        Success,
        /// <summary>
        /// 失败
        /// </summary>
        Fail,
        /// <summary>
        /// 忙碌
        /// </summary>
        Busy
    }

    public class TipDialog
    {
        /// <summary>
        /// 显示提示框
        /// </summary>
        /// <param name="tipType"></param>
        /// <param name="tip"></param>
        public static void Show(TipType tipType, string tip = "")
        {
            if (tipType == TipType.BadInternet)
            {
                Messenger.Default.Send(tip, TipType.BadInternet);
            }
            else if (tipType == TipType.Success)
            {
                Messenger.Default.Send(tip, TipType.Success);
            }
            else if (tipType == TipType.Fail)
            {
                Messenger.Default.Send(tip, TipType.Fail);
            }
        }
        /// <summary>
        /// 忙碌弹窗
        /// </summary>
        /// <param name="doWork"></param>
        public static void Busy(Action doWork)
        {
            Messenger.Default.Send(doWork, TipType.Busy);
        }
    }

        /// <summary>
        /// 注册提示框（放在App.xaml后台中）
        /// </summary>
        private void RegistTipDialog()
        {
            this.Exit += (s, e) => { Messenger.Default.Unregister(this); };

            Messenger.Default.Register<string>(this, TipType.BadInternet, (arg) =>
             {
                 new BadInternetView().ShowDialog();
             });
            Messenger.Default.Register<string>(this, TipType.Success, (tip) =>
            {
                new SuccessView(tip).ShowDialog();
            });
            Messenger.Default.Register<string>(this, TipType.Fail, (tip) =>
            {
                new FailView(tip).ShowDialog();
            });
            Messenger.Default.Register<Action>(this, TipType.Busy, (action) =>
            {
                new BusyView(action).ShowDialog();
            });


            Messenger.Default.Register<string>(this, AppToken.Restart, (arg) =>
            {
                System.Windows.Forms.Application.Restart();
                Shutdown();
            });
        }