Question

我正在尝试将忘记密码添加到我的登录页面当我点击发送按钮时，发送到服务器的HTTP请求
我所做的是我将HTTP请求放入Future函数中，并在onPressed中调用了该函数，但没有任何反应哪里不对了？？

我的HTTP功能

  Future<Map<String, dynamic>> send (String username, String email) async{



    final Map<String, dynamic> authData ={
      'Username' :username,
      'Password': email,
    };
   final http.Response response = await http.post('url',
   body: json.encode(authData),
   headers: {'Content-Type': 'application/json'},
   );

    final Map<String, dynamic> responseData = json.decode(response.body);
    bool hasError = true;
    String message = 'Data is not Valid';

     if ( responseData["StatusCode"] == 200 ) {

              print('forget password');


  showDialog(context:context, builder: (BuildContext context){
               return AlertDialog(
                 title: Text("Note!"),
                 content: Text('check your email'),
                 actions: <Widget>[
                   FlatButton(child: Text("OK"),
                   onPressed: (){
                     Navigator.of(context).pop();
                   },)
                 ],);
             });


    } else if(responseData.containsKey("StatusCode") != '200') {
      message='invalid username or email ';
      print('error');
    }

      return {'success': !hasError, 'message': message};

  }

和函数调用

final sendbutton = Padding(
         padding: EdgeInsets.symmetric(vertical: 16.0),
          child:RaisedButton(
           shape: RoundedRectangleBorder(
             borderRadius: BorderRadius.circular(24),
           ),

           onPressed: ()=> send,
        padding: EdgeInsets.all(12),
        color: Colors.orangeAccent,
        child: Text('Send', style: TextStyle(color: Colors.white)),
      ),


    );

有什么问题吗？

Answer 1

您应该解决调用send函数的方式

droplet ip

回调函数不适用于按钮

1 个答案: