增加一个容错机制，避免极端情况(暂无法设计该种场景)会堵塞所有命令执行

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

@@ -293,6 +293,7 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
                 public void onChanged(WorkInfo workInfo) {
                     if (workInfo == null) {
                         settingLayout.animate().setDuration(50).alpha(0f);
+                        reset();
                         return;
                     }
                     LogUtils.d(TAG, "\n任务: " + (runningCommand != null ? runningCommand.toString() : "null") +