title: Flutter using plugins inside flutter workmanager plugin callbackDispatcher function
body: <p>I try to use sqflite plugin inside background process with flutter workmanager. I have an SQLHelper class which for sqflite operations. I can use this helper inside application. But in this background process, it gives error as below</p>
  
  <p>Exception has occurred:</p>
  
  <pre><code>MissingPluginException (MissingPluginException(No implementation found for method getDatabasesPath on channel com.tekartik.sqflite))
  </code></pre>
  
  <p>Probably I have to register plugin inside callbackDispatcher, but I'm not sure. How can I solve this problem?</p>
  
  <pre><code>void callbackDispatcher() {
      Workmanager.executeTask((task, inputData) async {
  
          SQLHelper db = SQLHelper();
          ServerSetting sItem = await db.settingGetItem();
          print(sItem.hidetriggermaintenance);    
          return Future.value(true);
      });
  }
  </code></pre>