打印机接口

app/src/main/assets/print_demo.html

@@ -76,10 +76,44 @@
     <div class="info-box">
         <strong>设备信息：</strong><br>
         应用版本: <span id="app-version">Unknown</span><br>
-        环境检测: <span id="env-type">Browser</span>
+        环境检测: <span id="env-type">Browser</span><br>
+        打印机: <span id="printer-status" style="font-weight: bold; color: #ef4444;">未连接</span>
     </div>
 
-    <button class="btn" onclick="callSystemPrint()">1. 调用系统标准打印</button>
+    <!-- 打印功能网格 -->
+    <div style="margin-bottom: 20px;">
+        <div style="font-size: 13px; font-weight: bold; color: #64748b; margin-bottom: 8px;">基础打印测试</div>
+        <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 8px;">
+            <button class="btn btn-green" style="margin:0; padding:10px; font-size:13px;" onclick="callNativePrintText()">文本打印</button>
+            <button class="btn btn-green" style="margin:0; padding:10px; font-size:13px;" onclick="callNativePrintQR()">二维码打印</button>
+            <button class="btn btn-green" style="margin:0; padding:10px; font-size:13px;" onclick="callNativePrintBarcode()">条形码打印</button>
+            <button class="btn btn-green" style="margin:0; padding:10px; font-size:13px;" onclick="callNativePrintImg()">图片打印</button>
+        </div>
+    </div>
+
+    <div style="margin-bottom: 20px;">
+        <div style="font-size: 13px; font-weight: bold; color: #64748b; margin-bottom: 8px;">高级业务样式</div>
+        <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 8px;">
+            <button class="btn btn-orange" style="margin:0; padding:10px; font-size:13px;" onclick="callNativePrintColumns()">分栏打印测试</button>
+            <button class="btn btn-orange" style="margin:0; padding:10px; font-size:13px;" onclick="callNativePrintAlarm()">警情通知单</button>
+            <button class="btn btn-orange" style="margin:0; padding:10px; font-size:13px;" onclick="callNativePrintDemo(false)">2寸演示单据</button>
+            <button class="btn btn-orange" style="margin:0; padding:10px; font-size:13px;" onclick="callNativePrintDemo(true)">3寸演示单据</button>
+        </div>
+    </div>
+
+    <div style="margin-bottom: 20px;">
+        <div style="font-size: 13px; font-weight: bold; color: #64748b; margin-bottom: 8px;">硬件控制与维护</div>
+        <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 8px;">
+            <button class="btn" style="margin:0; padding:10px; font-size:13px; background: #6366f1;" onclick="callNativeTestPage()">打印自检页</button>
+            <button class="btn" style="margin:0; padding:10px; font-size:13px; background: #8b5cf6;" onclick="callNativeCheckPaper()">查询纸张状态</button>
+            <button class="btn btn-red" style="margin:0; padding:10px; font-size:13px;" onclick="callNativeCutPaper(false)">执行半切</button>
+            <button class="btn btn-red" style="margin:0; padding:10px; font-size:13px;" onclick="callNativeCutPaper(true)">执行全切</button>
+        </div>
+    </div>
+
+    <hr style="border: none; border-top: 1px solid #eee; margin: 20px 0;">
+
+    <button class="btn" style="background: #475569;" onclick="callSystemPrint()">1. 调用系统标准打印 (A4)</button>
     <p style="font-size: 12px; color: #666;">(支持 PDF 导出、网络打印机、A4 适配)</p>
 
     <button class="btn btn-green" onclick="callRawPrint()">2. 发送热敏指令打印</button>
@@ -219,6 +253,134 @@
             if (window.android.getVersionName) {
                 versionSpan.innerText = window.android.getVersionName();
             }
+            
+            updatePrinterStatus();
+            // 每 3 秒同步一次打印机状态
+            setInterval(updatePrinterStatus, 3000);
+        }
+    }
+
+    function updatePrinterStatus() {
+        if (window.android && window.android.getPrinterStatus) {
+            var status = JSON.parse(window.android.getPrinterStatus());
+            var span = document.getElementById('printer-status');
+            var statusTxt = status.connected ? "已连接 (" + status.port + ")" : "未连接 (" + status.port + ")";
+            var paperTxt = status.hasPaper ? " [有纸]" : " [⚠️缺纸]";
+            
+            span.innerText = statusTxt + paperTxt;
+            span.style.color = (status.connected && status.hasPaper) ? "#10B981" : "#ef4444";
+        }
+    }
+
+    function callNativePrintText() {
+        if (window.android && window.android.printText) {
+            window.android.printText("消防值守台 终端打印测试\n", 2, 1, 20);
+            window.android.printText("当前时间: " + new Date().toLocaleString() + "\n", 1, 1, 20);
+        }
+    }
+
+    function callNativePrintQR() {
+        if (window.android && window.android.printQR) {
+            window.android.printQR("https://www.gyouzhe.com", 6, 2);
+            window.android.printText("\n\n\n", 1, 1, 10);
+            window.android.cutPaper(false);
+        }
+    }
+
+    function callNativePrintBarcode() {
+        if (window.android && window.android.printBarcode) {
+            window.android.printBarcode("88888888", 3, 100, 5, 2, 2);
+            window.android.printText("\n\n\n", 1, 1, 10);
+            window.android.cutPaper(false);
+        }
+    }
+
+    function callNativePrintImg() {
+        if (window.android && window.android.printImage) {
+            window.android.printImage("1.jpg", 384, 1, 2);
+            window.android.printText("\n\n\n", 1, 1, 10);
+            window.android.cutPaper(false);
+        }
+    }
+
+    function callNativePrintColumns() {
+        if (window.android && window.android.printColumns) {
+            window.android.printColumns("项目", 0, "单价", 180, "数量", 250, "金额", 320);
+            window.android.printColumnsWithHeight("测试商品", 0, "10.0", 180, "1", 250, "10.0", 320, 70);
+            window.android.printText("\n\n\n", 1, 1, 10);
+            window.android.cutPaper(false);
+        }
+    }
+
+    function callNativePrintAlarm() {
+        if (window.android && window.android.printText) {
+             // 1. 标题
+            window.android.printText("警情通知单", 2, 2, 40);
+            window.android.cutPaper(false);
+            // 2. 二维码 (居中)
+            window.android.printQR("ALARM_20260304172432", 7, 2);
+            window.android.printText("\n", 1, 1, 20);
+            window.android.cutPaper(false);
+            // 3. 详情列表
+            window.android.printText("报警时间: 2026-03-04 17:24:32", 1, 1, 20);
+            window.android.printText("报警人: 张先生", 1, 1, 20);
+            window.android.printText("报警人电话: 18722727636", 1, 1, 20);
+            window.android.printText("灾害地址: 贵州省安顺市西秀区(赵家山村)宋旗镇赵家山村", 1, 1, 20);
+            window.android.printText("警情分类: 抢险救援", 1, 1, 20);
+            window.android.printText("报警描述: 车祸", 1, 1, 20);
+            window.android.printText("主管救援站联系电话: 0851-33410119", 1, 1, 20);
+            window.android.printText("出动车辆: ", 1, 1, 20);
+
+            // 4. 分割线
+            window.android.printText("--------------------------------", 1, 1, 10);
+
+            // 5. 注意事项
+            window.android.printText("注意事项:", 1, 1, 20);
+            window.android.printText("1、请专职消防队人员穿戴好防护装备，携带灭火、救援器材赶往现场科学处置。", 1, 1, 20);
+            window.android.printText("2、到达现场后及时上报情况，注意安全，做好个人防护和现场警戒。", 1, 1, 20);
+            window.android.printText("3、根据现场情况迅速组织人员疏散，并在确保安全的前提下利用灭火救援装备开展救援。", 1, 1, 20);
+            window.android.printText("4、待责任消防救援站力量到达现场后，主动与其汇报现场已知情况，并协助做好灭火救援工作。", 1, 1, 20);
+            window.android.printText("5、严格落实作战行动安全规定，防止触电、溺水、烧伤、坠落、中毒、砸伤、放射线等伤害。", 1, 1, 20);
+
+            // 6. 结尾
+            window.android.printText("--------------------------------", 1, 1, 10);
+            window.android.printText("\n\n\n", 1, 1, 10);
+
+            // 7. 切纸
+            window.android.cutPaper(false);
+        }
+    }
+
+    function callNativePrintDemo(is3Inch) {
+        if (window.android && window.android.printText) {
+            var width = is3Inch ? 400 : 300;
+            var right = is3Inch ? 120 : 100;
+            window.android.printText("\nStandAPP 业务测试单\n", 2, 1, 30);
+            window.android.printText("--------------------------------\n", 1, 1, 10);
+            window.android.printColumns("名称", 0, "单价", 180, "数量", 250, "金额", width);
+            window.android.printColumnsWithHeight("演示商品A", 0, "9.9", 180, "1", 250, "9.90", width, right);
+            window.android.printText("--------------------------------\n", 1, 1, 10);
+            window.android.printQR("http://www.standapp.com", 6, 2);
+            window.android.printText("\n\n\n", 1, 1, 10);
+            window.android.cutPaper(false);
+        }
+    }
+
+    function callNativeTestPage() {
+        if (window.android && window.android.printTestPage) {
+            window.android.printTestPage();
+        }
+    }
+
+    function callNativeCheckPaper() {
+        if (window.android && window.android.checkPaper) {
+            window.android.checkPaper();
+        }
+    }
+
+    function callNativeCutPaper(allCut) {
+        if (window.android && window.android.cutPaper) {
+            window.android.cutPaper(allCut);
         }
     }
 

app/src/main/java/com/stand/standapp/AndroidInterface.kt

@@ -9,11 +9,152 @@ import android.print.PrintAttributes
 import android.print.PrintManager
 import com.stand.standapp.R
 import com.stand.standapp.utils.LogManager
+import com.stand.standapp.printer.PrinterManager
 import timber.log.Timber
 import org.json.JSONObject
 
 class AndroidInterface(private val activity: MainActivity) {
 
+    /**
+     * JS 调用：获取打印机当前连接状态
+     */
+    @JavascriptInterface
+    fun getPrinterStatus(): String {
+        return try {
+            val json = JSONObject()
+            val connected = PrinterManager.isConnected()
+            json.put("connected", connected)
+            json.put("hasPaper", PrinterManager.isPaperReady())
+            json.put("port", AppConfig.getSerialPort(activity))
+            json.toString()
+        } catch (e: Exception) {
+            "{\"connected\":false, \"hasPaper\":false, \"error\":\"${e.message}\"}"
+        }
+    }
+
+    /**
+     * JS 调用：通用打印文本
+     */
+    @JavascriptInterface
+    fun printText(text: String?, size: Int, align: Int, space: Int) {
+        if (text.isNullOrEmpty()) return
+        try {
+            PrinterManager.getFactory()?.let {
+                if (it.isConnection) {
+                    it.PrintText(text, size, align, space)
+                }
+            }
+        } catch (e: Throwable) {
+            Timber.tag("JS_Interface").e(e, "printText failed")
+        }
+    }
+
+    /**
+     * JS 调用：打印条码
+     */
+    @JavascriptInterface
+    fun printBarcode(data: String?, size: Int, height: Int, align: Int, text_pos: Int, type: Int) {
+        if (data.isNullOrEmpty()) return
+        try {
+            PrinterManager.getFactory()?.PrintBarcode(data, size, height, align, text_pos, type)
+        } catch (e: Throwable) {
+            Timber.tag("JS_Interface").e(e, "printBarcode failed")
+        }
+    }
+
+    /**
+     * JS 调用：打印二维码
+     */
+    @JavascriptInterface
+    fun printQR(data: String?, size: Int, l_m: Int) {
+        if (data.isNullOrEmpty()) return
+        try {
+            PrinterManager.getFactory()?.PrintQR(data, size, l_m)
+        } catch (e: Throwable) {
+            Timber.tag("JS_Interface").e(e, "printQR failed")
+        }
+    }
+
+    /**
+     * JS 调用：打印图片 (从 Assets 获取)
+     */
+    @JavascriptInterface
+    fun printImage(fileName: String?, width: Int, align: Int, mode: Int) {
+        if (fileName.isNullOrEmpty()) return
+        try {
+            val stream = activity.assets.open(fileName)
+            val bitmap = android.graphics.BitmapFactory.decodeStream(stream)
+            PrinterManager.getFactory()?.PrintImage(bitmap, width, align, mode)
+            stream.close()
+        } catch (e: Exception) {
+            Timber.tag("JS_Interface").e(e, "printImage failed: $fileName")
+        }
+    }
+
+    /**
+     * JS 调用：分栏打印 (4列)
+     */
+    @JavascriptInterface
+    fun printColumns(c1: String?, p1: Int, c2: String?, p2: Int, c3: String?, p3: Int, c4: String?, p4: Int) {
+        try {
+            PrinterManager.getFactory()?.Printcolumncontent(c1 ?: "", p1, c2 ?: "", p2, c3 ?: "", p3, c4 ?: "", p4)
+        } catch (e: Throwable) {
+            Timber.tag("JS_Interface").e(e, "printColumns failed")
+        }
+    }
+
+    /**
+     * JS 调用：分栏打印 (带行高)
+     */
+    @JavascriptInterface
+    fun printColumnsWithHeight(c1: String?, p1: Int, c2: String?, p2: Int, c3: String?, p3: Int, c4: String?, p4: Int, height: Int) {
+        try {
+            PrinterManager.getFactory()?.Printcolumncontent(c1 ?: "", p1, c2 ?: "", p2, c3 ?: "", p3, c4 ?: "", p4, height)
+        } catch (e: Throwable) {
+            Timber.tag("JS_Interface").e(e, "printColumnsWithHeight failed")
+        }
+    }
+
+    /**
+     * JS 调用：切纸
+     */
+    @JavascriptInterface
+    fun cutPaper(allCut: Boolean) {
+        try {
+            PrinterManager.getFactory()?.let {
+                if (it.isConnection) {
+                    if (allCut) it.PaperAllCut() else it.PaperCut()
+                }
+            }
+        } catch (e: Throwable) {
+            Timber.tag("JS_Interface").e(e, "cutPaper failed")
+        }
+    }
+
+    /**
+     * JS 调用：打印自检页
+     */
+    @JavascriptInterface
+    fun printTestPage() {
+        try {
+            PrinterManager.getFactory()?.PrintTestPage()
+        } catch (e: Throwable) {
+            Timber.tag("JS_Interface").e(e, "printTestPage failed")
+        }
+    }
+
+    /**
+     * JS 调用：主动检查纸张状态 (会触发回调)
+     */
+    @JavascriptInterface
+    fun checkPaper() {
+        try {
+            PrinterManager.getFactory()?.Check_Paper()
+        } catch (e: Throwable) {
+            Timber.tag("JS_Interface").e(e, "checkPaper failed")
+        }
+    }
+
     /**
      * JS 调用：压缩并导出日志
      * 返回压缩后的文件路径
@@ -76,15 +217,15 @@ class AndroidInterface(private val activity: MainActivity) {
     /**
      * JS 调用：原始数据打印
      * 适用于热敏小票打印机 (蓝牙、USB、网络)
-     * @param data 可以是 JSON 字符串，包含打印的指令或文本
+     * @param data String 可以是 JSON 字符串，包含打印的指令或文本
      */
     @JavascriptInterface
-    fun printRawData(data: String) {
+    fun printRawData(data: String?) {
+        if (data.isNullOrEmpty()) return
         try {
             Timber.tag("Print").d("收到 H5 原始打印数据: $data")
             Handler(Looper.getMainLooper()).post {
                 try {
-                    // 这里可以弹出一个选择框让用户选择打印机，或者根据配置自动连接
                     Toast.makeText(activity, "H5指令打印: $data", Toast.LENGTH_SHORT).show()
                 } catch (e: Exception) {
                     Timber.tag("Print").e(e, "Toast显示失败")
@@ -99,7 +240,7 @@ class AndroidInterface(private val activity: MainActivity) {
      * JS 调用：在线升级 (手动触发检查)
      */
     @JavascriptInterface
-    fun startUpdate(apkUrl: String) {
+    fun startUpdate(apkUrl: String?) {
         Handler(Looper.getMainLooper()).post {
             try {
                 UpdateManager(activity).checkUpdate()
@@ -172,7 +313,8 @@ class AndroidInterface(private val activity: MainActivity) {
      * JS 调用：保存消息记录
      */
     @JavascriptInterface
-    fun saveMessage(message: String) {
+    fun saveMessage(message: String?) {
+        if (message.isNullOrEmpty()) return
         try {
             val prefs = activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE)
             val currentMsgs = prefs.getString("history", "") ?: ""

app/src/main/java/com/stand/standapp/AppConfig.kt

@@ -13,7 +13,7 @@ object AppConfig {
     
     // 默认配置
     const val DEFAULT_SERVER_URL = "https://template.gyouzhe.com"
-    const val DEFAULT_SERIAL_PORT = "/dev/ttyACM0"
+    const val DEFAULT_SERIAL_PORT = "ttyACM0"
 
     private fun getPrefs(context: Context): SharedPreferences {
         return context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE)

app/src/main/java/com/stand/standapp/LoginActivity.kt

@@ -127,8 +127,12 @@ class LoginActivity : AppCompatActivity() {
                                 AppConfig.setSavedPassword(this@LoginActivity, "")
                             }
 
-                            Toast.makeText(this@LoginActivity, "登录成功", Toast.LENGTH_SHORT).show()
+                             Toast.makeText(this@LoginActivity, "登录成功", Toast.LENGTH_SHORT).show()
-                            startActivity(Intent(this@LoginActivity, MainActivity::class.java))
+                             
+                             // 初始化打印机 (自动重连)
+                             com.stand.standapp.printer.PrinterManager.init(this@LoginActivity)
+                             
+                             startActivity(Intent(this@LoginActivity, MainActivity::class.java))
                             finish()
                         } else {
                             val msg = json.optString("msg", "登录失败")

app/src/main/java/com/stand/standapp/printer/PrinterManager.kt

@@ -0,0 +1,100 @@
+package com.stand.standapp.printer
+
+import android.content.Context
+import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
+import com.dp.dp_serialportlist.Serialport_Factory
+import com.stand.standapp.AppConfig
+import timber.log.Timber
+import java.util.concurrent.Executors
+import java.util.concurrent.TimeUnit
+
+object PrinterManager {
+    private var sf: Serialport_Factory? = null
+    private var isConnecting = false
+    private val executor = Executors.newSingleThreadScheduledExecutor()
+    private var mContext: Context? = null
+    private var hasPaper: Boolean = true // 默认为有纸
+
+    private val mHandler = Handler(Looper.getMainLooper()) { msg ->
+        if (msg.what == Serialport_Factory.PAPER_STATE) {
+            hasPaper = msg.data.getBoolean("PAPER_STATE")
+            val statusStr = if (hasPaper) "有纸" else "缺纸"
+            Timber.tag("Printer").i("打印机状态变更: %s", statusStr)
+            
+            // 在 Android 系统层面主动提示
+            mContext?.let {
+                if (!hasPaper) {
+                    android.widget.Toast.makeText(it, "⚠️ 警告：打印机缺纸！", android.widget.Toast.LENGTH_LONG).show()
+                }
+            }
+        }
+        true
+    }
+
+    fun isPaperReady(): Boolean = hasPaper
+
+    fun init(context: Context) {
+        if (sf != null) return
+        mContext = context.applicationContext
+        
+        // 全异步初始化，不阻塞主线程跳转
+        executor.execute {
+            try {
+                Timber.tag("Printer").i("开始异步初始化打印机组件...")
+                sf = Serialport_Factory.getSerialport_Factory(mContext, mHandler)
+                
+                // 启动自动重连定时任务
+                executor.scheduleWithFixedDelay({
+                    checkAndConnect()
+                }, 0, 10, TimeUnit.SECONDS)
+                
+                Timber.tag("Printer").i("打印机组件初始化任务已分发")
+            } catch (e: Exception) {
+                Timber.tag("Printer").e(e, "打印机组件初始化失败")
+            }
+        }
+    }
+
+    @Synchronized
+    private fun checkAndConnect() {
+        val factory = sf ?: return
+        if (factory.isConnection) return
+
+        val path = AppConfig.getSerialPort(mContext!!)
+        val baudrate = "9600"
+        
+        Timber.tag("Printer").d("尝试自动连接打印机: %s @ %s", path, baudrate)
+        try {
+            if (factory.OpenPort(path, baudrate)) {
+                Timber.tag("Printer").i("打印机自动连接成功")
+            }
+        } catch (e: Throwable) {
+            Timber.tag("Printer").e(e, "打印机自动连接异常")
+        }
+    }
+
+    fun getFactory(): Serialport_Factory? = sf
+
+    fun isConnected(): Boolean = sf?.isConnection ?: false
+
+    /**
+     * 提供便捷的打印方法
+     */
+    fun printText(text: String, size: Int = 1, align: Int = 1, space: Int = 10) {
+        sf?.let {
+            if (it.isConnection) {
+                it.PrintText(text, size, align, space)
+            }
+        }
+    }
+
+    fun cutPaper() {
+        sf?.let {
+            if (it.isConnection) {
+                it.PaperCut()
+            }
+        }
+    }
+}

app/src/main/res/layout/dialog_settings.xml

@@ -76,7 +76,7 @@
             android:layout_width="match_parent"
             android:layout_height="56dp"
             android:background="@drawable/bg_input_field"
-            android:hint="/dev/ttyACM0"
+            android:hint="ttyACM0"
             android:inputType="text"
             android:paddingHorizontal="16dp"
             android:textColor="#0F172A"