BarrageTransporter/BarrageTransporter/AppContext.cs

using System;
using System.IO.Ports;
using System.Text;
using System.Windows.Forms;
using System.Windows.Media;

namespace BarrageTransporter
{
    class AppContext
    {
        // 数据缓存路径
        public static string TEMPPATH = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
        // 串口类
        SerialPort serialPort = null;
        // 打开串口标志位
        public bool portOpen = false;

        private static AppContext appContext;

        private AppContext() { }

        public static AppContext getAppContext()
        {
            if (appContext == null)
            {
                appContext = new AppContext();
            }
            return appContext;
        }

        public SerialPort SerialPort
        {
            set
            {
                if (value == null)
                {
                    portOpen = false;
                    MainWindow.status.Content = "未连接";
                    MainWindow.status.ToolTip = "设备未连接";
                    MainWindow.status.Foreground = new SolidColorBrush(Colors.Red);
                }
                else
                {
                    portOpen = true;
                    MainWindow.status.Content = "已连接";
                    MainWindow.status.ToolTip = "设备已连接";
                    MainWindow.status.Foreground = new SolidColorBrush(Colors.Green);
                }
                serialPort = value;
            }
            get
            {
                return serialPort;
            }
        }

        public bool PortOpen
        {
            set
            {
                portOpen = value;
            }
            get
            {
                return portOpen;
            }
        }

        public void dataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            try
            {
                // Comm.BytesToRead 中为要读入的字节长度
                int len = serialPort.BytesToRead;
                Byte[] readBuffer = new Byte[len];
                // 将数据读入缓存
                serialPort.Read(readBuffer, 0, len);
                // 处理 readBuffer 中的数据，自定义处理过程
                string msg = Encoding.Default.GetString(readBuffer, 0, len);
                Console.WriteLine(msg);
            }
            catch (Exception ex)
            {
                MessageBox.Show("接收返回消息异常！具体原因：" + ex.Message, "错误提示");
            }
        }
    }
}