FM/Assets/Scripts/Base/Printer/HanYin/HanYin_Android.cs

using System;
using System.IO;
using UnityEngine;
using ZFramework.Runtime;

namespace HK
{
    public abstract class HanYin_Android : MonoBehaviour
    {
        [SerializeField] string printer_ip = "192.168.0.126";

        public virtual void Print(bool isPrintTest = false, params object[] args)
        {
            // 这里面编写实际打印所需的内容，此内容必须同步到实际的类里面进行编写
            // 如：打印一段文本、一个图片等等
            // using (AndroidJavaClass printClass = new AndroidJavaClass("print.Print"))
            // {
            // }

            // 此内容为案例
            if (isPrintTest)
                PrintTest();
        }

        void PrintTest()
        {
            try
            {
                PortOpen();

                using (AndroidJavaClass printClass = new AndroidJavaClass("print.Print"))
                {
                    this.printClass = printClass;
                    printClass.CallStatic<int>("PrintText", " \n", 1, 1, 0);
                    for (int i = 0; i < 3; i++)
                    {
                        PrintText( "这是一段测试内容");
                        PrintNewLine();
                    }
                    PrintLine();
                    CutPaper();
                    PortClose();
                }
            }
            catch (Exception e)
            {
                Log.Debug(e);
                throw;
            }
        }

        protected int PortOpen()
        {
            // 获取UnityPlayer类
            using (AndroidJavaClass unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
            using (AndroidJavaObject currentActivity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity"))
            {
                // Call Print.PortOpen(Context, String)
                using (AndroidJavaClass printClass = new AndroidJavaClass("print.Print"))
                {
                    printClass.SetStatic<string>("LanguageEncode", "GB2312");
                    string port = $"WiFi,{printer_ip},9100"; // Change to your printer's connection type
                    int result = printClass.CallStatic<int>("PortOpen", currentActivity, port);
                    Debug.Log($"connect result: {result}");
                    return result;
                }
            }
        }

        public int PrintImage(Texture2D texture)
        {
            using (AndroidJavaClass wrapperClass = new AndroidJavaClass("PrinterWrapper"))
            {
                // Call PrintImage(String path, byte var1, byte var2, int var3)
                byte[] array = texture.EncodeToPNG();
                int result = wrapperClass.Call<int>("PrintImageFromString", array, 0, 0);

                Debug.Log(result != -1 ? "Print logo success" : "Print logo failed");
                return result;
            }
        }

        private AndroidJavaClass printClass;
        
        public void PrintText(string s, int a = 0, int b = 0, int c = 0)
        {
            printClass.CallStatic<int>("PrintText", s, a, b, c);
        }

        public void PrintLine()
        {
            printClass.CallStatic<int>("PrintText", "                                        ", 0, 4, 0);
        }

        public void PrintNewLine()
        {
            printClass.CallStatic<int>("PrintAndLineFeed");
        }

        public void CutPaper()
        {
            printClass.CallStatic<int>("CutPaper", 1);
        }

        public void PortClose()
        {
            printClass.CallStatic<bool>("PortClose");
        }

        private string GetTime()
        {
            string time = DateTime.Now.ToString("h:mm");
            if (DateTime.Now.Hour < 12)
                time += "am";
            else
                time += "pm";
            return time;
        }
    }
}