我有一个网络电话要执行.但在此之前,我需要检查设备是否具有互联网连接.
这是我到目前为止所做的：
var connectivityResult = new Connectivity().checkConnectivity();// User defined class
if (connectivityResult == ConnectivityResult.mobile ||
connectivityResult == ConnectivityResult.wifi) {*/
this.getData();
} else {
neverSatisfied();
}
以上方法不起作用.
解决方法
连接插件在其文档中声明,它仅在有网络连接时提供信息,但如果网络连接到Internet则不提供
Note that on Android,this does not guarantee connection to Internet. For instance,the app might have wifi access but it might be a VPN or a hotel WiFi with no access.
您可以使用
import 'dart:io';
...
try {
final result = await InternetAddress.lookup('google.com');
if (result.isNotEmpty && result[0].rawAddress.isNotEmpty) {
print('connected');
}
} on SocketException catch (_) {
print('not connected');
}
