如果串口路径不为空时则开关一次设备

* 设置界面可清除串口路径

app_dashboard/changelog.md

@@ -9,7 +9,17 @@ author:
 2. $ {VERSION_CODE} (去掉空格)，会自动替换实际修订号，比如 1.1.4.$ {VERSION_CODE}
 -->
 
-### [1.0.4.${VERSION_CODE}] - 2026.1.5
+### [1.0.5.${VERSION_CODE}] - 2026.3.5
+
+#### 文件下载
+
+* [dashboardclient_1.0.5.apk](dashboardclient_1.0.5.apk)
+
+#### 更新记录
+* App 启动时如果串口路径为空时自动检测设备, 否则开关一次设备
+* 设置界面可清除串口路径
+
+### [1.0.4.23] - 2026.1.5
 
 #### 文件下载
 

app_dashboard/src/main/java/cn/ykbox/dashboard/activity/BuildingDashboardActivity.java

@@ -110,6 +110,9 @@ public class BuildingDashboardActivity extends FullscreenActivity {
         configUrl = urlPrefix + "/data/config.json";
         mainUrl = urlEndPoint.isEmpty() ? urlPrefix : urlPrefix + "/" + urlEndPoint;
 
+        Log.i(TAG, "Main: " + mainUrl);
+        Log.i(TAG, "Config: " + configUrl);
+
         configLoadHandler.post(configLoadRunnable);
         loadUrlWithRetry();
     }
@@ -117,15 +120,34 @@ public class BuildingDashboardActivity extends FullscreenActivity {
     private void initSerialPort() {
         String portPath = PreferenceConfiguration.getSerialPortPath(this);
         int baudRate = PreferenceConfiguration.getSerialPortBaudRate(this);
+        boolean sendPowerOnCmd = PreferenceConfiguration.getSendPowerOnCmd(this);
 
         // 初始化串口检测器
         detector = new SerialPortDetector(portPath, baudRate);
 
-        // 每次启动都进行串口检测/验证
+        // 只有 portPath 为空时才进行串口检测
+        if (TextUtils.isEmpty(portPath)) {
+            Log.i(TAG, "Starting serial port detection/verification...");
             // 参数 true 表示确保设备开机（发送两个命令）
             // 参数 false 表示仅检测串口（任一命令有响应即可）
-        Log.i(TAG, "Starting serial port detection/verification...");
             startSerialPortDetection(true);
+        } else {
+            Log.i(TAG, "Using saved serial port path: " + portPath);
+
+            // 如果勾选了"发送打开电源指令"，则先发送关闭再发送打开
+            if (sendPowerOnCmd) {
+                Log.i(TAG, "Sending power on sequence...");
+                new Thread(() -> {
+                    detector.sendPowerOffCommand();
+                    try {
+                        Thread.sleep(3000); // 等待 3 秒
+                    } catch (InterruptedException e) {
+                        Log.e(TAG, "Sleep interrupted", e);
+                    }
+                    detector.sendPowerOnCommand();
+                }).start();
+            }
+        }
     }
 
     /**
@@ -276,6 +298,8 @@ public class BuildingDashboardActivity extends FullscreenActivity {
         WebSettings webSettings = binding.webview.getSettings();
         webSettings.setCacheMode(WebSettings.LOAD_NO_CACHE);
         webSettings.setJavaScriptEnabled(true);
+        // 允许媒体自动播放 (Android 8+ 必须)
+        webSettings.setMediaPlaybackRequiresUserGesture(false);
 
         // 禁用缩放相关设置
         webSettings.setTextZoom(100);

app_dashboard/src/main/java/cn/ykbox/dashboard/activity/SettingsActivity.java

@@ -1,12 +1,16 @@
 package cn.ykbox.dashboard.activity;
 
+import android.content.SharedPreferences;
 import android.os.Bundle;
 
 import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.preference.Preference;
 import androidx.preference.PreferenceFragmentCompat;
 
 import cn.ykbox.dashboard.R;
+import cn.ykbox.dashboard.perferences.PreferenceConfiguration;
 
 public class SettingsActivity extends AppCompatActivity {
 
@@ -30,6 +34,21 @@ public class SettingsActivity extends AppCompatActivity {
         @Override
         public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
             setPreferencesFromResource(R.xml.root_preferences, rootKey);
+
+            Preference clearDevicePref = findPreference("k_clear_device");
+            if (clearDevicePref != null) {
+                clearDevicePref.setOnPreferenceClickListener(preference -> {
+                    new AlertDialog.Builder(requireContext())
+                            .setTitle("确认清除")
+                            .setMessage("确定要清除当前串口设备路径吗？")
+                            .setPositiveButton("确定", (dialog, which) -> {
+                                PreferenceConfiguration.setSerialPortPath(requireContext(), "");
+                            })
+                            .setNegativeButton("取消", null)
+                            .show();
+                    return true;
+                });
+            }
         }
     }
 }

app_dashboard/src/main/java/cn/ykbox/dashboard/perferences/PreferenceConfiguration.java

@@ -13,6 +13,7 @@ public class PreferenceConfiguration {
 
     private static final String KEY_SERIAL_PORT_PATH = "k_serial_port_path";
     private static final String KEY_SERIAL_PORT_BAUD_RATE = "k_serial_baud";
+    private static final String KEY_SEND_POWER_ON_CMD = "k_send_power_on_cmd";
 
     public static String getSerialPortPath(Context context) {
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
@@ -29,4 +30,9 @@ public class PreferenceConfiguration {
         String baud = prefs.getString(KEY_SERIAL_PORT_BAUD_RATE, "9600");
         return Integer.parseInt(baud);
     }
+
+    public static boolean getSendPowerOnCmd(Context context) {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        return prefs.getBoolean(KEY_SEND_POWER_ON_CMD, true);
+    }
 }

app_dashboard/src/main/java/cn/ykbox/dashboard/serial/SerialPortDetector.java

@@ -45,6 +45,51 @@ public class SerialPortDetector {
         this.callback = callback;
     }
 
+    /**
+     * 发送关闭设备指令到已保存的串口（不等待响应）
+     */
+    public void sendPowerOffCommand() {
+        sendCommand(TEST_CMD_OFF);
+    }
+
+    /**
+     * 发送打开设备指令到已保存的串口（不等待响应）
+     */
+    public void sendPowerOnCommand() {
+        sendCommand(TEST_CMD_ON);
+    }
+
+    /**
+     * 发送指令到已保存的串口（不等待响应）
+     * @param commandHex 十六进制命令字符串
+     */
+    private void sendCommand(String commandHex) {
+        if (TextUtils.isEmpty(savedPath)) {
+            Log.w(TAG, "No serial port path configured");
+            return;
+        }
+
+        new Thread(() -> {
+            SerialHelper serialHelper = null;
+            try {
+                serialHelper = new SimpleSerialHelper(savedPath, baudRate);
+                serialHelper.open();
+                serialHelper.sendHex(commandHex);
+                Log.d(TAG, "Sent command: " + commandHex);
+            } catch (Exception e) {
+                Log.e(TAG, "Error sending command: " + e.getMessage());
+            } finally {
+                if (serialHelper != null) {
+                    try {
+                        serialHelper.close();
+                    } catch (Exception e) {
+                        Log.e(TAG, "Error closing port: " + e.getMessage());
+                    }
+                }
+            }
+        }).start();
+    }
+
     /**
      * 开始串口检测（智能检测）
      * 先验证已保存的串口，如果不可用再进行全局检测
@@ -226,6 +271,20 @@ public class SerialPortDetector {
         }
     }
 
+    /**
+     * 简单的串口 Helper，用于只发送命令不等待响应
+     */
+    private static class SimpleSerialHelper extends SerialHelper {
+        public SimpleSerialHelper(String sPort, int iBaudRate) {
+            super(sPort, iBaudRate);
+        }
+
+        @Override
+        protected void onDataReceived(ComBean comBean) {
+            // 不需要处理响应
+        }
+    }
+
     /**
      * 内部测试用的 SerialHelper
      */

app_dashboard/src/main/res/xml/root_preferences.xml

@@ -25,5 +25,14 @@
             app:title="串口波特率"
             app:defaultValue="9600"
             app:useSimpleSummaryProvider="true" />
+        <CheckBoxPreference
+            app:key="k_send_power_on_cmd"
+            app:title="App 启动时发送打开电源指令"
+            app:summary="每次启动 App 时先发送关闭再发送打开电源指令"
+            app:defaultValue="true" />
+        <Preference
+            app:key="k_clear_device"
+            app:title="清除设备"
+            app:summary="清除当前串口设备路径, 下次启动时自动检测设备。" />
     </PreferenceCategory>
 </PreferenceScreen>