单击"凸起"按钮失败，没有任何错误

Question

我的应用程序中有一个非常奇怪的错误。当我尝试单击"PARIER"按钮时，它绝对什么也没做，我不明白为什么。我调用了 Prono_Match((，但它根本不起作用，我没有语法错误，它什么也没做。我尝试调用另一个页面，但它是相同的。为什么它完全无视Prono_Match ???的呼唤这是非常非常奇怪的:(

我的代码 ：

import 'package:flutter/material.dart';
import 'dart:convert';
import 'package:http/http.dart' as http;
import 'dart:async';
import 'menu_member.dart';
import 'globals.dart' as globals;
import 'appbar_draw.dart';
import 'package:awesome_dialog/awesome_dialog.dart';
import 'package:intl/intl.dart';
import 'prono_match.dart';
// Create a Form widget.
class Affiche_Matchs extends StatefulWidget {
@override
_Affiche_Matchs_State createState() {
return _Affiche_Matchs_State();
}
}
// Create a corresponding State class.
// This class holds data related to the form.
class _Affiche_Matchs_State extends State<Affiche_Matchs> {
@override
bool load=false;
bool visible=false;
String idmatch="";
String prono="";
List<String> radioValues = [];
Future<List<Match>> grid;
Future <List<Match>> Liste_Match_Display() async {
// SERVER LOGIN API URL
var url = 'https://www.easytrafic.fr/game_app/display_matchs.php';
var data = {
'id_membre': globals.id_membre,
};
var data_encode = jsonEncode(data);
// Starting Web API Call.
var response = await http.post(url,body: data_encode,headers: {'content-type': 'application/json','accept': 'application/json','authorization': globals.token});
// Getting Server response into variable.
var jsondata = json.decode(response.body);
List<Match> Matchs = [];
var i=0;
for (var u in jsondata) {
i=i+1;
Match match = Match(u["id"],u["equipe1"],u["equipe2"],u["dated"],u["heured"]);
Matchs.add(match);
radioValues.add("");
}
return Matchs;
}
void initState() {
super.initState();
grid = Liste_Match_Display();
}
@override
Widget build(BuildContext context) {
return Stack(
children: <Widget>[
Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: <Color>[
Colors.blue[300],Colors.blue[400]
],
),
),
),
Scaffold(
appBar: drawappbar(true),
backgroundColor: Colors.transparent,
drawer: new DrawerOnly(className: Affiche_Matchs()),
body:
Center(
child : Column(
children: <Widget>[
Container(
height: MediaQuery.of(context).size.height*0.8,
width: MediaQuery.of(context).size.width,
child:
FutureBuilder(
future: grid,
builder: (BuildContext context, AsyncSnapshot snapshot) {
switch (snapshot.connectionState) {
case ConnectionState.waiting: return new Center(child: new CircularProgressIndicator(),);
default:
if(snapshot.hasError) {
return new Center(child: new Text('Error: ${snapshot.error}'),);
}
else {
List<Match> values = snapshot.data;
if (values.isEmpty) {
return Container(
child: Center(
child: Text("Aucun match disponible !!!",style: TextStyle(color: Colors.white))
)
);
}
else {
Match lastitem;
lastitem=values[0];
int i=0;
return ListView.builder(itemCount: values.length,itemBuilder: (_,index) {
bool header = lastitem.date_debut !=
values[index].date_debut;
lastitem = values[index];
var parsedDate = DateTime.parse(values[index].date_debut);
final formatter = new DateFormat('dd/MM/yyyy');
var dat = formatter.format(parsedDate);
return Column(
children: [
(header || index == 0)
?
Container(
height: 30,
margin: EdgeInsets.only(top:10),
width: MediaQuery.of(context).size.width,
decoration: BoxDecoration(
border: Border.all(
color: Colors.blue[700],
width: 2,
),
color: Colors.blue[700]
),
child : new Text(dat,textAlign: TextAlign.center,style: TextStyle(fontSize: 18.0,fontWeight: FontWeight.w500,color: Colors.white),),
)// here// display header
:
Container(),
Container(
margin: EdgeInsets.only(top:20,bottom:20),
child: Center(
child: Text(values[index].heure_debut,style: TextStyle(color: Colors.white)),
),
),
Container(
margin: const EdgeInsets.only(bottom:10),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Container(
child: Text(values[index].equipe1+" - "+values[index].equipe2,style: TextStyle(fontSize:10,color: Colors.white)),
),
]
),
),
Container(
margin: const EdgeInsets.only(left:5),
child: RaisedButton(
color: Colors.green,
textColor: Colors.white,
padding: EdgeInsets.fromLTRB(5, 5, 5, 5),
child: Text('PARIER'),
onPressed: () {
idmatch=values[index].id;
print(idmatch);
setState(() {
visible=true;
});
Prono_Match(idmatch: idmatch);
},
),
),
]
);
}
);
}
};
};
}
),
),
]
)
)
)
]
);
}
}
class Match {
final String id;
final String equipe1;
final String equipe2;
final String date_debut;
final String heure_debut;
const Match(this.id,this.equipe1, this.equipe2,this.date_debut,this.heure_debut);
}

Answer 1

我猜你在按下按钮时试图显示Prono_Match页面，尽管这不是你在颤振中调用页面的方式，而是这样做：

onPressed: () {
idmatch=values[index].id;
print(idmatch);
setState(() {
visible=true;
});
Navigator.push(context,MaterialPageRoute(builder: (context)=>Prono_Match(idmatch: idmatch),),
);
},