1

app/src/main/java/com/naz/sdkdemo/weight/UserCache.java

@@ -91,14 +91,36 @@ public class UserCache extends SPUtils {
 
     public static String getSerialName() {
         SerialPortFinder finder = new SerialPortFinder();
-        if (finder.getAllDevicesPath().length>0){
-            for (int i = 0; i < finder.getAllDevicesPath().length; i++) {
-                Log.e("------------>","---------->finder.getAllDevicesPath("+i+")="+finder.getAllDevicesPath()[i]);
+        String[] devicePaths = finder.getAllDevicesPath();
+        if (devicePaths.length > 0) {
+            for (int i = 0; i < devicePaths.length; i++) {
+                Log.e("------------>", "---------->finder.getAllDevicesPath(" + i + ")=" + devicePaths[i]);
+            }
+            Log.e("------------>", "---------->finder.getAllDevicesPath()=" + Arrays.toString(devicePaths));
+            // 获取第一个串口路径
+            String sName = devicePaths[0];
+            // 在这里检查USB连接状态
+            boolean isUSBConnected = isUSBConnected();
+            if (isUSBConnected) {
+                // 如果USB已连接，你可以在这里进行相应的操作
+                Log.e("------------>", "---------->USB Connected");
+            } else {
+                // 如果USB未连接，你可以在这里进行相应的操作
+                Log.e("------------>", "---------->USB Not Connected");
             }
-            Log.e("------------>","---------->finder.getAllDevicesPath()="+finder.getAllDevicesPath());
-            String sName = finder.getAllDevicesPath()[0];
             return sName;
         }
         return "";
     }
+
+    private boolean isUSBConnected() {
+        UsbManager usbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
+        HashMap<String, UsbDevice> connectedDevices = usbManager.getDeviceList();
+        for (UsbDevice device : connectedDevices.values()) {
+            if (device.getDeviceClass() == UsbConstants.USB_CLASS_COMM) {
+                return true;
+            }
+        }
+        return false;
+    }
 }