Flutter 當前網絡類型

在pubspec.yaml文件中加入對這個插件的依賴：

dependencies:
  connectivity: ^0.4.2

終端

flutter packages get

代碼判斷

import 'package:connectivity/connectivity.dart';

//網絡狀態
    String netWork;
    var connectivityResult = await (Connectivity().checkConnectivity());
    if (connectivityResult == ConnectivityResult.mobile) {
      netWork = '4G';
      // 網絡類型爲移動網絡
    } else if (connectivityResult == ConnectivityResult.wifi) {
      // 網絡類型爲WIFI
      netWork = 'WIFI';
    } else {
      netWork = 'NotReachable';
    }
    print('connectivityResult--->$connectivityResult;netWork----->$netWork');

如果運行出錯出現

MissingPluginException(No implementation found for method check on channel xxx)

解決方案
https://blog.csdn.net/timtian008/article/details/105701459