我在处理错误SocketException: Connection failed (OS Error: Network is unreachable, errno = 101) address = 192.168.43.159, port = 80
时遇到问题。
我已经做了:
我的推荐人Making Network http error SocketException: Failed host lookup
<uses-permission android:name="android.permission.INTERNET"/>
try catch
来处理此错误Future loginMahasiswa(body) async {
try {
var apiRespon = await http.post('$baseURL/mahasiswa/login',
body: body, headers: CrudComponent.headers);
int statusCode = apiRespon.statusCode;
if (statusCode == 200) {
final apiResponJson = json.decode(apiRespon.body);
print('Success Load Data Json ($apiResponJson)');
return apiResponJson;
} else {
final apiResponJson = json.decode(apiRespon.body);
print('fail Load Data Json $apiResponJson');
return apiResponJson;
}
} catch (e) {
print(e);
return null;
}
}
void _loginMahasiswa() async {
SharedPreferences preferences = await SharedPreferences.getInstance();
try {
final body = {"email": _txtEmail.text, "password": _txtPassword.text};
var loginMahasiswa = await api.loginMahasiswa(body);
String message = loginMahasiswa['message'];
var dataUser = loginMahasiswa['data'];
// String idUser = dataUser[0]['id_user'] ?? "null";
if (loginMahasiswa['status'] == true) {
setState(() {
preferences.setString('token', dataUser[0]['username']);
Navigator.of(context).pushAndRemoveUntil(
PageTransition(
type: PageTransitionType.rightToLeftWithFade,
child: HomePage()),
(Route<dynamic> route) => false);
});
} else {
print(message);
_showSnackBar(context, message, Colors.red);
}
} on SocketException catch (_) {
//throw ("No connection Internet");
_showSnackBar(context, 'no connection', Colors.orange);
}
}
但是,如果我单击按钮,我的Snackbar
不会显示错误no connection
。
答案 0 :(得分:0)
2。 确保您已在应用的android / app / src / main / AndroidManifest.xml中授予互联网许可