Flutter Social Forum Application

import 'package:flutter/material.dart';
import 'package:scoped_model/scoped_model.dart';

class MyScopeModel extends Model{

  int selectedTyep=1;
  String selectedCategory="";
  get selectedTypes=>selectedTyep;
  get selectedCat=>selectedCategory;

  void setSelected(int value)
  {
    selectedTyep=value;
    notifyListeners();
  }
 void setCategory(String value)
  {
    selectedCategory=value;
    notifyListeners();
  }

}

import 'package:flutter/material.dart';

class LoginPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      appBar: new AppBar(
        backgroundColor: Colors.green,
        centerTitle: true,
        elevation: 0.0,
        title: new Text(
          "Welcome",
          textScaleFactor: 1.3,
        ),
      ),
      body: new Container(
        color: Colors.amberAccent,
        padding: const EdgeInsets.all(30.0),
        child:  ListView(
          children: <Widget>[
            new Container(
              margin: const EdgeInsets.all(20.0),
              decoration: new BoxDecoration(
                borderRadius: new BorderRadius.all(new Radius.circular(30.0)),
              ),
              height: 100.0,
              alignment: Alignment.center,
              child: new Icon(
                Icons.beach_access,
                size: 100.0,
                color: Colors.green,
              ),
            ),
            new TextField(
              controller: new TextEditingController(),
              decoration: new InputDecoration(
                hintText: 'Username',
                filled: true,
                fillColor: Colors.white,
              ),
            ),
            SizedBox(height: 10,),
            new TextField(
              controller: new TextEditingController(),
              obscureText: true,
              decoration: new InputDecoration(
                hintText: 'Password',
                filled: true,
                fillColor: Colors.white,
              ),
            ),
            new Container(
              // margin: const EdgeInsets.only( bottom: 150.0),
              child: new Column(
                crossAxisAlignment: CrossAxisAlignment.stretch,
                children: <Widget>[
                  new Container(
                    margin: const EdgeInsets.symmetric(vertical: 8.0),
                    child: new RaisedButton(
                      child: new Text("Login",style: TextStyle(color: Colors.white),),
                      onPressed: onPressed,
                      color: Colors.pink,
                    ),
                  ),
                  new RaisedButton(
                    child: new Text("Forgot Password"),
                    onPressed: onPressed,
                  ),
                ],
              ),
            ),
            new Expanded(
              child: new Column(
                crossAxisAlignment: CrossAxisAlignment.stretch,
                mainAxisAlignment: MainAxisAlignment.end,
                children: <Widget>[
                  new Container(
                    margin: const EdgeInsets.symmetric(vertical: 8.0),
                    child: new RaisedButton(
                      child: new Text("Register"),
                      onPressed: onPressed,
                      color: Colors.yellow,
                    ),
                  ),
                  new RaisedButton(
                    child: new Text("Continue as Guest"),
                    onPressed: () {Navigator.pushNamed(context, '/forum');},
                  ),
                ],
              ),
            )
          ],
        )
      ),
    );
  }

  void onPressed() {}

}

import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:practice1/assets/colors.dart';
import 'package:scoped_model/scoped_model.dart';
import 'constants/icons.dart';
import 'model/category.dart';
import 'model/listdata.dart';
import 'model/scopemodel.dart';

class ForumPage extends StatefulWidget {
  ForumPage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _ForumPageState createState() => new _ForumPageState();
}

class _ForumPageState extends State<ForumPage> {

  List<CategoryIcon>listCategory;
  @override
  void initState() {
    super.initState();
    listCategory=new List();
    print("reading");
   loadCategory();
  }

  MyScopeModel model;
   Container topCategoyIcons(model) {
     return new Container(

       alignment: Alignment.center,
       decoration: new BoxDecoration(
           gradient: new LinearGradient(
             colors: [
               AppColorsTheme.myTheme.titleBarGradientStartColor,
               AppColorsTheme.myTheme.titleBarGradientEndColor
             ],
             begin: const FractionalOffset(0.0, 0.0),
             end: const FractionalOffset(0.0, 1.0),
             stops: [0.0, 1.0],
             tileMode: TileMode.clamp,
           )),
       child: new Container(
         margin: EdgeInsets.only(top: 20,left: 10,right: 10),
         alignment: Alignment.bottomCenter,

         padding: EdgeInsets.only(bottom: 10),
         decoration: new BoxDecoration(
           color: AppColorsTheme.myTheme.secondaryGradientColor,
           // border: new Border.all(color: Colors.black, width: 1.0),
           borderRadius: new BorderRadius.only(
             topLeft: new Radius.circular(30.0),
             topRight: new Radius.circular(30.0),
           ),
         ),
         child: new Row(
           mainAxisAlignment: MainAxisAlignment.spaceAround,
           crossAxisAlignment: CrossAxisAlignment.center,
           children: <Widget>[
             listCategory[0],
             listCategory[1],
             listCategory[2],
             listCategory[3],

           ],
         ),
       ),
     );
   }

   Container categoryMetric(model) {
     return new Container(
       padding: const EdgeInsets.all(5.0),
       margin: const EdgeInsets.fromLTRB(10.0, 0.0, 10.0, 15.0),
       decoration: new BoxDecoration(
         gradient: new LinearGradient(
           colors: [
             AppColorsTheme.myTheme.secondaryGradientColor,
             AppColorsTheme.myTheme.secondaryGradientColor
           ],
           begin: const FractionalOffset(0.0, 0.5),
           end: const FractionalOffset(0.0, 1.0),
           stops: [0.0, 1.0],
           tileMode: TileMode.clamp,
         ),
         // border: new Border.all(color: Colors.black, width: 1.0),
         borderRadius: new BorderRadius.only(
           bottomLeft: new Radius.circular(30.0),
           bottomRight: new Radius.circular(30.0),
         ),
       ),
       child: new Row(
         mainAxisAlignment: MainAxisAlignment.spaceAround,
         crossAxisAlignment: CrossAxisAlignment.center,
         children: <Widget>[
           listCategory[4],
           listCategory[5],
           listCategory[6],
           listCategory[7],

         ],
       ),
     );
   }


   listView(MyScopeModel model) {return
     new ListView.builder(
       physics: NeverScrollableScrollPhysics(),
       itemBuilder: (BuildContext context, int index) =>
       new EntryItem(myForums[model.selectedTyep][index]),
       itemCount: myForums[model.selectedTyep].length,
       shrinkWrap: true,
     );}

  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      appBar: new AppBar(
        backgroundColor: Colors.green,
        centerTitle: false,
        elevation: 0.0,
        title: new Text(
          widget.title,
          textScaleFactor: 1.3,
        ),
        actions: <Widget>[
          new IconButton(
            icon: new Icon(Icons.search),
            onPressed: _onSearchPressed,
          ),
        ],
      ),
      body: new Container(
        child:ScopedModelDescendant<MyScopeModel>(
          builder: (context,child,model){

            this.model=model;

            return  SingleChildScrollView(
              child: Column(
                children: <Widget>[ (listCategory.length>4)?topCategoyIcons(model):Container(), Divider(height: 1,color: Colors.white,), (listCategory.length>7)?categoryMetric(model):Container(), listView(model)],
              ),
            );
          },
        ),


      ),
    );
  }
  void _onSearchPressed() {
    Navigator.pop(context);
  }

   loadCategory() {
    DefaultAssetBundle.of(context).loadString("assets/category.json")
        .then((s) {

      List list=json.decode(s) as List;
      print(list);
      setState(() { listCategory= list.map((e) => fromJson(e)).toList();});/*{
        setState(() {
          print("reading");
            listCategory.add();
          print("${listCategory.length}");
        })
      });*/
    })
        .catchError((error) {

      print(error);
    });
  }
}

import 'package:flutter/material.dart';
import 'package:practice1/assets/colors.dart';
import 'package:scoped_model/scoped_model.dart';

import 'model/scopemodel.dart';

class ForumDetailPage extends StatefulWidget {
  ForumDetailPage();

  @override
  _ForumDetailPageState createState() => new _ForumDetailPageState();
}

var ForumPostArr = [
  new ForumPostEntry("User1", "2 Days ago", 0 , 0 , "Hello,\n\nDummy Text about flutter post "),
  new ForumPostEntry("User2", "23 Hours ago", 1 , 0 , "he basic component in a Flutter program is a "widget", which can in turn consist of other widgets. A widget describes the logic, interaction, and design of a UI element with an implementation similar to React. Unlike other cross-platform toolkits such as React Native and Xamarin which draw widgets using native platform components, Flutter renders widgets itself on a per-pixel basis.
There are two fundamental types of widgets: stateless and stateful. Stateless widgets only update if their inputs change, making them very efficient, while stateful widgets can call the setState() method to update an internal state and redraw.[27]
Although widgets are the primary method of constructing Flutter applications, they can also be bypassed in favor of directly drawing on a canvas. This feature has been occasionally used to implement game engines in Flutter
."),
  new ForumPostEntry("User3", "2 Days ago", 5 , 0 , "Dummy Text about flutter post ."),
  new ForumPostEntry("User4", "2 Days ago", 0 , 0 , "Dummy Text about flutter post ."),
];

class _ForumDetailPageState extends State<ForumDetailPage> {
  int forumtype;
  String category;
  @override
  Widget build(BuildContext context) {

    var questionSection = new Padding(
      padding: const EdgeInsets.all(8.0),
      child: new Column(
        children: <Widget>[
          new Text(
            "How do I become a expert in programming as well as design ??",
            textScaleFactor: 1.5,
            style: new TextStyle(fontWeight: FontWeight.bold),
          ),
          new Padding(
            padding: const EdgeInsets.all(12.0),
            child: new Row(
              mainAxisAlignment: MainAxisAlignment.spaceAround,
              children: <Widget>[
                new IconWithText(Icons.laptop_mac, "Technology"),
                new IconWithText(
                  Icons.check_circle,
                  "Answered",
                  iconColor: Colors.green,
                ),
                new IconWithText(Icons.remove_red_eye, "54")
              ],
            ),
          ),
          new Divider()
        ],
      ),
    );

    var responses = new Container(
      padding: const EdgeInsets.all(8.0),
      child: new ListView.builder(
        itemBuilder: (BuildContext context, int index) => new ForumPost(ForumPostArr[index]),
        itemCount: ForumPostArr.length,
      )
    );

    return ScopedModelDescendant<MyScopeModel>(builder: (context,child, model){
      return Scaffold(
        appBar: new AppBar(
          backgroundColor: Colors.green,
          title: new Text(model.selectedCat,style: TextStyle(color: Colors.white),),
        ),
        body: new Column(
          children: <Widget>[
            questionSection,
            new Expanded(
                child: new Padding(
                  padding: const EdgeInsets.only(bottom: 20.0),
                  child: responses,
                ))
          ],
        ),
      );
    });
  }
}

class ForumPostEntry{
  final String username;
  final String hours;
  final int likes;
  final int dislikes;
  final String text;

  ForumPostEntry(this.username, this.hours, this.likes, this.dislikes, this.text);
}

class ForumPost extends StatelessWidget {
  final ForumPostEntry entry;

  ForumPost(this.entry);

  @override
  Widget build(BuildContext context) {
    return new Container(
      margin: const EdgeInsets.all(5.0),
      decoration: new BoxDecoration(
        color: Colors.green,
        borderRadius: const BorderRadius.all(const Radius.circular(20.0)),
      ),
      child: new Column(
        children: <Widget>[
          new Container(
            decoration: new BoxDecoration(
              color: Colors.green,
              borderRadius: const BorderRadius.only(
                  topLeft: const Radius.circular(20.0),
                  topRight: const Radius.circular(20.0)),
            ),
            child: new Row(
              children: <Widget>[
                new Icon(
                  Icons.person,
                  color: Colors.white,
                  size: 50.0,
                ),
                new Expanded(
                  child: new Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: <Widget>[
                      new Text(
                        entry.username
                            ,style: TextStyle(color: Colors.white),
                      ),
                      new Text(
                        entry.hours,style: TextStyle(color: Colors.white),
                      ),
                    ],
                  ),
                ),
                new Row(
                  children: <Widget>[
                    new Padding(
                      padding: const EdgeInsets.all(2.0),
                      child: new Icon(Icons.thumb_up,color: Colors.amber,),
                    ),
                    new Padding(
                      padding: const EdgeInsets.all(2.0),
                      child: new Text(entry.likes.toString(),style: TextStyle(color: Colors.white),),
                    ),
                    new Padding(
                      padding: const EdgeInsets.all(2.0),
                      child: new Icon(Icons.thumb_down,color: Colors.amber,),
                    ),
                    new Padding(
                      padding: const EdgeInsets.only(right: 8.0, left: 2.0),
                      child: new Text(entry.dislikes.toString(),style: TextStyle(color: Colors.white),),
                    ),
                  ],
                )
              ],
            ),
          ),
          new Container(
            margin: const EdgeInsets.only(left: 2.0,right: 2.0,bottom: 2.0),
            padding: const EdgeInsets.all(8.0),
            decoration: new BoxDecoration(
              color: Colors.grey[200],
              borderRadius: const BorderRadius.only(bottomLeft :const Radius.circular(20.0),bottomRight :const Radius.circular(20.0))
            ),
            child: new Text(entry.text),
          ),
        ],
      ),
    );
  }
}

class IconWithText extends StatelessWidget {
  final IconData iconData;
  final String text;
  final Color iconColor;

  IconWithText(this.iconData, this.text, {this.iconColor});
  @override
  Widget build(BuildContext context) {
    return new Container(
      child: new Row(
        children: <Widget>[
          new Icon(
            this.iconData,
            color: this.iconColor,
          ),
          new Padding(
            padding: const EdgeInsets.only(left: 8.0),
            child: new Text(this.text),
          ),
        ],
      ),
    );
  }
}