diff --git a/PDA/PDA/src/libs/Broadcast.js b/PDA/PDA/src/libs/Broadcast.js
index a6dd65d..270972f 100644
--- a/PDA/PDA/src/libs/Broadcast.js
+++ b/PDA/PDA/src/libs/Broadcast.js
@@ -3,6 +3,16 @@ var receiver = null;
 //接收广播
 export function recive(success, fail) {
 
+	//在所有页面注册监听前 如果当前应用存在监听 则取消广播监听
+	if (main && receiver) {
+		console.log("取消监听广播");
+		try {
+			main.unregisterReceiver(receiver);
+		} catch (e) {
+			console.error("取消广播监听时出错:", e);
+		}
+	}
+
 	// #ifdef APP
 	main = plus.android.runtimeMainActivity(); //获取activity
 	//创建自定义广播实例  
diff --git a/PDA/PDA/static/锡膏预约.png b/PDA/PDA/static/锡膏预约.png
deleted file mode 100644
index 45ff61d..0000000
Binary files a/PDA/PDA/static/锡膏预约.png and /dev/null differ
diff --git a/PDA/PDA/unpackage/dist/dev/app-plus/app-service.js b/PDA/PDA/unpackage/dist/dev/app-plus/app-service.js
index 534b639..3b21ba0 100644
--- a/PDA/PDA/unpackage/dist/dev/app-plus/app-service.js
+++ b/PDA/PDA/unpackage/dist/dev/app-plus/app-service.js
@@ -44,12 +44,20 @@ if (uni.restoreGlobal) {
   var main = null;
   var receiver = null;
   function recive(success, fail) {
+    if (main && receiver) {
+      formatAppLog("log", "at src/libs/Broadcast.js:8", "取消监听广播");
+      try {
+        main.unregisterReceiver(receiver);
+      } catch (e) {
+        formatAppLog("error", "at src/libs/Broadcast.js:12", "取消广播监听时出错:", e);
+      }
+    }
     main = plus.android.runtimeMainActivity();
     receiver = plus.android.implements("io.dcloud.feature.internal.reflect.BroadcastReceiver", {
       onReceive: function(context, intent) {
         plus.android.importClass(intent);
         var action = intent.getAction();
-        formatAppLog("log", "at src/libs/Broadcast.js:13", "zhanglp", action);
+        formatAppLog("log", "at src/libs/Broadcast.js:23", "zhanglp", action);
         var data;
         switch (action) {
           case "com.android.server.scannerservice.broadcast":
@@ -57,7 +65,7 @@ if (uni.restoreGlobal) {
             break;
           case "com.service.scanner.data":
             data = intent.getExtra("ScanCode");
-            formatAppLog("log", "at src/libs/Broadcast.js:21", "zhanglp", data.replace(/\n/, ""));
+            formatAppLog("log", "at src/libs/Broadcast.js:31", "zhanglp", data.replace(/\n/, ""));
             break;
           case "android.intent.action.SCANRESULT":
             data = intent.getExtra("value");
@@ -129,7 +137,7 @@ if (uni.restoreGlobal) {
     main.registerReceiver(receiver, filter);
   }
   function unregisterReceiver() {
-    formatAppLog("log", "at src/libs/Broadcast.js:114", "取消监听广播");
+    formatAppLog("log", "at src/libs/Broadcast.js:124", "取消监听广播");
     main.unregisterReceiver(receiver);
   }
   function saveConfig(key, value) {
diff --git a/PDA/PDA/unpackage/dist/dev/app-plus/static/锡膏预约.png b/PDA/PDA/unpackage/dist/dev/app-plus/static/锡膏预约.png
deleted file mode 100644
index 45ff61d..0000000
Binary files a/PDA/PDA/unpackage/dist/dev/app-plus/static/锡膏预约.png and /dev/null differ