我在flutter应用程序中遇到了这个问题。似乎无法加载API请求,但是当我在浏览器上尝试时,它会返回“ http://vplay.id/api/series/popular ”。
除错
exception = {_Exception} Exception: Failed to load
message = "Failed to load"
this = {SeriesProvider}
_url = "http://vplay.id/api/"
_loading = false
_currentPage = 1
_pages = 1
_series = {_GrowableList} size = 0
_seriesStream = {_AsyncStreamController}
endpoint = "series/popular"
e = {_TypeError} type 'int' is not a subtype of type 'double'
_stackTrace = {_StackTrace}
_failedAssertion = "is assignable"
_url = "package:streamapp/src//helpers/parse.dart"
_line = 31
_column = 7
message = "type 'int' is not a subtype of type 'double'"
Series_provider.dart
import 'dart:async';
import 'dart:convert';
import 'package:http/http.dart' as http;
import '../helpers/api.dart';
import '../models/serie_model.dart';
export '../models/serie_model.dart';
class SeriesProvider {
String _url = Api.url;
bool _loading = false;
int _currentPage = 1;
int _pages = 1;
List<Serie> _series = List();
final _seriesStream = StreamController<List<Serie>>();
Function(List<Serie>) get seriesSink => _seriesStream.sink.add;
Stream<List<Serie>> get seriesStream => _seriesStream.stream;
void dispose() {
_seriesStream?.close();
}
Future<List<Serie>> _process(String endpoint) async {
try {
final resp = await http.get(_url + endpoint);
if (resp.statusCode != 200) {
throw Exception('Failed to load');
}
final data = json.decode(resp.body);
final series = Series.fromJsonList(data);
return series.items;
} catch (e) {
throw Exception('Failed to load');
}
}
助手/parse.dart
static double checkDouble(dynamic value) {
if (value is String) {
return double.parse(value);
} else {
return value;
}
}
}
这是我第一次颤抖,这很有趣,因为只有我面对这个问题(这是我从codecanyon市场获得的一个应用程序),并且需要全新安装。
static double checkDouble(dynamic value) {
if (value is String) {
return double.parse(value);
} else {
return value;
}
}
}
问题似乎从最后开始return value
。您可能需要return value+.0
。
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