MCWC Practical 6

bookList.dart

final String mcwc = "MCWC";
final String ins = "INS";
final String dmbi = "DMBI";
String book;


final List<String> mcwcList = [
  'Wireless Communications & Networks by Pearson',
  'Mobile ComputingTechnology,Applications and service creation by TMH',
  'Android Application Development Black Book by dreamtech press',
  'Wireless and mobile networks by WILEY',
  'Mobile Computing Theory and Practice-Kumkum Garg-Pearson'
];
final List<String> insList = [
  'Cryptography And Network Security by Pearson',
  'Information Security Principles and Practice By Willy India Edition',
  'Cryptography & Network Security, McGrawHill',
  'Cryptography and Network Security, TMH',
  'Cryptography and Security, Wiley-India'
];
final List<String> dmbiList = [
  'Data Mining Concepts and Techniques, Morgan Kaufmann',
  'Data mining: Concepts, models, methods and algorithms, John Wiley &Sons Inc',
  'Data Warehousing Fundamentals, John Willey',
  'Data Mining: Introductory and Advanced Topics, Pearson Education',
  'Data Mining for Business Intelligence, Wiley India'
];

main.dart

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

void main() {
  runApp(MaterialApp(
    home: Home(),
    debugShowCheckedModeBanner: false,
  ));
}

class Home extends StatefulWidget {
  @override
  _HomeState createState() => _HomeState();
}

class _HomeState extends State<Home> {
  final textController = TextEditingController();
  String name;
  String subject;
  String bookName;

  String _char = mcwc;
  List<String> getBooksFromSub(_char) {
    switch (_char) {
      case "MCWC":
        return mcwcList;
        break;
      case "INS":
        return insList;
        break;
      case "DMBI":
        return dmbiList;
        break;
      default:
        print("Enter valid sub");
        break;
    }
  }

  @override
  void dispose() {
    textController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Practical 6"),
        centerTitle: true,
      ),
      body: SingleChildScrollView(
          child: Padding(
          padding: EdgeInsets.all(20),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              TextField(
                controller: textController,
                decoration: InputDecoration(hintText: "Enter your name"),
              ),
              SizedBox(
                height: 20,
              ),
              Text("Select Subject"),
              SizedBox(
                height: 20,
              ),
              ListTile(
                title: Text(mcwc),
                leading: Radio(
                  value: mcwc,
                  groupValue: _char,
                  onChanged: (value) => setState(() => _char = value),
                ),
              ),
              ListTile(
                title: Text(ins),
                leading: Radio(
                  value: ins,
                  groupValue: _char,
                  onChanged: (value) => setState(() => _char = value),
                ),
              ),
              ListTile(
                title: Text(dmbi),
                leading: Radio(
                  value: dmbi,
                  groupValue: _char,
                  onChanged: (value) => setState(() => _char = value),
                ),
              ),
              SizedBox(
                height: 20,
              ),
              DropdownButton<String>(
                isExpanded: true,
                itemHeight: null,
                hint: Text("Select Book"),
                value: bookName,
                iconSize: 24,
                onChanged: (String val) {
                  setState(() {
                    bookName = val;
                  });
                },
                items: getBooksFromSub(_char).map((String name) {
                  return DropdownMenuItem(
                    child: Text(name),
                    value: name,
                    onTap: () => book = name,
                  );
                }).toList(),
              ),
              SizedBox(
                height: 20,
              ),
              Center(
                child: RaisedButton(
                    child: Text("Submit"),
                    onPressed: () {
                      _showMyDialog();
                    }),
              )
            ],
          ),
        ),
      ),
    );
  }

  Future<void> _showMyDialog() async {
    return showDialog<void>(
      context: context,
      barrierDismissible: false, // user must tap button!
      builder: (BuildContext context) {
        return AlertDialog(
          title: Text('Your Data'),
          content: SingleChildScrollView(
            child: ListBody(
              children: <Widget>[
                Text(
                  'Name: ${textController.text}',
                  style: TextStyle(
                    fontWeight: FontWeight.bold
                  )
                ),
                SizedBox(height: 5,),                
                Text(
                  'Subject: $_char',
                  style: TextStyle(
                    fontWeight: FontWeight.bold
                  )
                ),
                SizedBox(height: 5,),
                Text(
                  'Book: $bookName',
                  style: TextStyle(
                    fontWeight: FontWeight.bold
                  )
                )
              ],
            ),
          ),
          actions: <Widget>[
            FlatButton(
              child: Text('Okay'),
              onPressed: () {
                Navigator.of(context).pop();
              },
            ),
          ],
        );
      },
    );
  }
}