1、优化代码结构及注释

2、优化后台切换支付提示语后的响应

app/src/main/java/com/bgycc/smartcanteen/activity/MainActivity.java

@@ -89,6 +89,7 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
     private TextView message;
     private AudioManager audioManager;
 
+    private Gson gson;
     private String idle_notice;
     private WorkManager workManager;
     private Handler handler = new Handler();
@@ -107,9 +108,10 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
         }
         String host = SmartCanteenUtils.getMainWebSocketServerUrl(deviceSN, BuildConfig.VERSION_NAME);
         LogUtils.d(TAG, "服务器地址: " + host);
+        gson = Injection.provideGson();
         try {
             URI uri = new URI(host);
-            SCWebSocketClient.init(uri, deviceSN, Injection.provideGson());
+            SCWebSocketClient.init(uri, deviceSN, gson);
         } catch (URISyntaxException e) {
             LogUtils.e(TAG, "服务器地址异常: " + e.getMessage(), e);
         }
@@ -247,11 +249,12 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
                     commandViewModel.commandFinish(command);
                     return;
                 }
+                // 修改主界面的提示语
                 if (CommandHelper.changedPaymentNotice(command)) {
-                    Gson gson = Injection.provideGson();
                     try {
                         CommandNotice commandNotice = gson.fromJson(command.getData(), CommandNotice.class);
                         idle_notice = commandNotice.getData().getNotice();
+                        message.setText(idle_notice);
                     } finally {
                         commandViewModel.commandFinish(command);
                     }
@@ -343,10 +346,12 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
         SCWebSocketClient.getInstance().tryConnect();
     }
 
+    // 检查debug layout是否已初始化
     private boolean debugLayoutIsNotInflate() {
         return debugVs != null;
     }
 
+    // 主界面显示模式切换: Debug <==> Release
     private void toggleDebugLayout() {
         if (debugLayoutIsNotInflate()) {
             inflateDebugLayout();