.NET（C#、VB）APP开发——Smobiler平台控件介绍：Bluetooth组件

本文简述如何在Smobiler中使用Bluetooth。

Step 1. 新建一个SmobilerForm窗体，并在窗体中加入Button和Bluetooth，布局如下

Button的点击事件代码：

       /// <summary>
        /// 关闭蓝牙
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button2_Press(object sender, EventArgs e)
        {
            bluetooth1.Close((abj, args) =>
            {
                if (args.isError == true)
                    Toast(args.error);
                else
                    Toast("success");
            });
        }
        /// <summary>
        /// 打开蓝牙
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Press(object sender, EventArgs e)
        {
            bluetooth1.Open((abj, args) =>
            {
                if (args.isError == true)
                    Toast(args.error);
                else
                    Toast("success");
            });

        }
        string macAdress = "";
         /// <summary>
         /// 搜索蓝牙设备
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
        private void button3_Press(object sender, EventArgs e)
        {
            bluetooth1.Search((abj, args) =>
            {
                if (args.isError == true)
                    Toast(args.error);
                else
                {
                    Toast("success" + args.Name + "  " + args.MacAddress);
                    macAdress = args.MacAddress;
                }
            });

        }
        /// <summary>
        /// 连接蓝牙
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button4_Press(object sender, EventArgs e)
        {
            //第一个参数为蓝牙设备MAC地址
            bluetooth1.Connect(macAdress, (abj, args) =>
            {
                if (args.isError == true)
                    Toast(args.error);
                else
                    Toast("success");
            });
        }
        /// <summary>
        /// 关闭蓝牙
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button5_Press(object sender, EventArgs e)
        {
            bluetooth1.CloseConnect((abj, args) =>
            {
                if (args.isError == true)
                    Toast(args.error);
                else
                    Toast("success");
            });
        }
        /// <summary>
        /// 发送蓝牙信息
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button6_Press(object sender, EventArgs e)
        {
            string str = "690000001";
            string print = "SIZE 80 mm,40 mm\r\n" + "REFERENCE 0,0\r\n" + "SPEED 4.0\r\n" + "DENSITY 8\r\n" + "SET PEEL OFF\r\n" + "SET CUTTER OFF\r\n" + "SET TEAR ON\r\n" + "DIRECTION 0\r\n" + "SHIFT 0\r\n" + "OFFSET 0 mm\r\n" + "CLS\r\n" + "BARCODE 20,20,\"128M\",160,1,0,4,12,\"" + str + "\"\r\n" + "TEXT 20,190,\"ARIAL.TTF\",0,15,15,\"" + str + "\"\n" + "PRINT 3,1\r\n";
            bluetooth1.WriteData(System.Text.Encoding.UTF8.GetBytes(print), (abj, args) =>
            {
                if (args.isError == true)
                    Toast(args.error);
                else
                    Toast("success");
            });
        }
        /// <summary>
        ///获取蓝牙状态,蓝牙是否连接成功需要GetStatus获取状态来判断
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button7_Press(object sender, EventArgs e)
        {
            bluetooth1.GetStatus((abj, args) =>
            {
                if (args.isError == true)
                    Toast(args.error);
                else
                {
                    Toast(args.Status + "  " + args.Name + "  " + args.MacAddress);
                    label2.Text = args.Status.ToString();
                }
            });
        }

在设计器中选中Bluetooth添加事件

        private void bluetooth1_DataReceived(object sender, Smobiler.Plugins.BluetoothDataReceivedEventArgs e)
        {
            //e.Data 接收到的数据; e.Deviceid 蓝牙设备id; 当连接多个蓝牙时，会多次触发该事件，可根据e.Deviceid区分蓝牙设备
            MessageBox.Show(System.Text.Encoding.GetEncoding("gbk").GetString(e.Data));
        }

Step 2. 运行服务端后，手机上安装官网的调试工具进行测试，效果如下

若是使用云平台上自行打包的客户端， 需要添加相应插件后再打包客户端。

补充

以上代码可用于连接经典蓝牙，BLE蓝牙请使用以下方法

方法	方法说明
CloseConnectBle	断开连接上的低功耗蓝牙设备
ConnectBle	连接指定低功耗蓝牙
SearchBle	查找并连接低功耗蓝牙
WriteBleData	发送低功耗蓝牙信息

demo 参考 https://github.com/comsmobiler/SmobilerTutorials/blob/master/Source/Plugins/demoBluetooth.cs