修复重连状态下少传一个参数导致崩溃的问题

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

@@ -133,7 +133,7 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
                     refreshWifiInfo();
                     break;
                 case ConnectState.RECONNECTING:
-                    msg = String.format(getString(R.string.connect_reconnecting), networkType);
+                    msg = String.format(getString(R.string.connect_reconnecting), event.getHost(), networkType);
                     break;
                 case ConnectState.CHANGE_NETWORK:
                     msg = String.format(getString(R.string.connect_change_network), event.getHost(), networkType);