try except flutter
try {
print(x);
} on Exception catch (_) {
print('never reached');
}try except flutter
try {
print(x);
} on Exception catch (_) {
print('never reached');
}flutter error example
class MyApp extends StatelessWidget {
...
@override
Widget build(BuildContext context) {
return MaterialApp(
...
builder: (BuildContext context, Widget widget) {
Widget error = Text('...rendering error...');
if (widget is Scaffold || widget is Navigator)
error = Scaffold(body: Center(child: error));
ErrorWidget.builder = (FlutterErrorDetails errorDetails) => error;
return widget;
},
);
}
}http exception flutter
// models/http_exception.dart
class HttpException implements Exception {
final String message;
HttpException(this.message);
@override
String toString() {
return message;
}
}
// in some other file
if (json.decode(response.body)['error'] != null) {
throw HttpException(json.decode(response.body)['error']['message']);
}
// in ui file
try{
} on HttpException catch(error) {
} catch (error) {
}Copyright © 2021 Codeinu
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