👨‍🏫0.9 List - список - task app

import 'package:flutter/material.dart';

class Lesson22 extends StatefulWidget {
  const Lesson22({super.key});

  @override
  State<Lesson22> createState() => _Lesson22State();
}

class _Lesson22State extends State<Lesson22> {
  List<String> tasks = ['Изучить flutter', 'Learn english'];

  String name = 'Hello';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Column(
        children: [
          Expanded(
            child: ListView.builder(
              shrinkWrap: true,
              itemCount: tasks.length,
              itemBuilder: (context, index) {
                return ListTile(
                  leading: Checkbox(value: false, onChanged: (value) {}),
                  title: Text(tasks[index]),
                  trailing: IconButton(
                    onPressed: () {
                      setState(() {
                        tasks.removeAt(index);
                      });
                    },
                    icon: Icon(Icons.delete, color: Colors.red),
                  ),
                );
              },
            ),
          ),
        ],
      ),
    );
  }
}

import 'package:flutter/material.dart';

class Lesson22 extends StatefulWidget {
  const Lesson22({super.key});

  @override
  State<Lesson22> createState() => _Lesson22State();
}

class _Lesson22State extends State<Lesson22> {
  List<String> tasks = [
    'Изучить flutter',
    'Learn english',
    'Изучить flutter',
    'Learn english',
    'Изучить flutter',
    'Learn english',
    'Изучить flutter',
    'Learn english',

  ];

  String name = 'Hello';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(),
      body: Column(
        children: [
          Row(
            children: [
              TextButton(onPressed: (){
                setState(() {
                  tasks.clear();
                });
              }, child: Text('Delete all')),
            ],
          ),
          Expanded(
            child: ListView.builder(
              shrinkWrap: true,
              itemCount: tasks.length,
              itemBuilder: (context, index) {
                return ListTile(
                  leading: Checkbox(value: false, onChanged: (value) {}),
                  title: Text(tasks[index]),
                  trailing: IconButton(
                    onPressed: () {
                     showDialog(context: context, builder: (context){
                       return AlertDialog(
                         title: Text('Вы действительно хотите удлаить?'),
                         content: Icon(Icons.crisis_alert, color: Colors.red, size: 50,),
                         actions: [
                           TextButton(onPressed: (){
                             Navigator.pop(context);
                           }, child: Text('Нет')),
                           TextButton(onPressed: (){
                             setState(() {
                               tasks.removeAt(index);
                             });
                             Navigator.pop(context);
                           }, child: Text('Да'))
                         ],
                       );
                     });
                    },
                    icon: Icon(Icons.delete, color: Colors.red),
                  ),
                );
              },
            ),
          ),
        ],
      ),
      floatingActionButton: ElevatedButton(onPressed: (){
        showModalBottomSheet(context: context, builder: (context){
          return Container(
            height: 400,
            width: double.infinity,
            decoration: BoxDecoration(
              borderRadius: BorderRadius.only(
                topRight: Radius.circular(20),
                topLeft: Radius.circular(20),
              ),
              color: Colors.red
            ),
          );
        });
      }, child: Text('Create task')),
    );
  }
}

import 'package:flutter/material.dart';

class Lesson22 extends StatefulWidget {
  const Lesson22({super.key});

  @override
  State<Lesson22> createState() => _Lesson22State();
}

class _Lesson22State extends State<Lesson22> {
  TextEditingController taskController = TextEditingController();

  List<String> tasks = [
    'Изучить flutter',
    'Learn english',
    'Изучить flutter',
    'Learn english',
    'Изучить flutter',
    'Learn english',
    'Изучить flutter',
    'Learn english',
  ];

  String name = 'Hello';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(),
      body: Column(
        children: [
          Row(
            children: [
              TextButton(
                onPressed: () {
                  setState(() {
                    tasks.clear();
                  });
                },
                child: Text('Delete all'),
              ),
            ],
          ),
          Expanded(
            child: tasks.isEmpty
                ? Center(child: Text('Нету задач'))
                : ListView.builder(
                    shrinkWrap: true,
                    itemCount: tasks.length,
                    itemBuilder: (context, index) {
                      return ListTile(
                        leading: Checkbox(value: false, onChanged: (value) {}),
                        title: Text(tasks[index]),
                        trailing: IconButton(
                          onPressed: () {
                            showDialog(
                              context: context,
                              builder: (context) {
                                return AlertDialog(
                                  title: Text(
                                    'Вы действительно хотите удлаить?',
                                  ),
                                  content: Icon(
                                    Icons.crisis_alert,
                                    color: Colors.red,
                                    size: 50,
                                  ),
                                  actions: [
                                    TextButton(
                                      onPressed: () {
                                        Navigator.pop(context);
                                      },
                                      child: Text('Нет'),
                                    ),
                                    TextButton(
                                      onPressed: () {
                                        setState(() {
                                          tasks.removeAt(index);
                                        });
                                        Navigator.pop(context);
                                      },
                                      child: Text('Да'),
                                    ),
                                  ],
                                );
                              },
                            );
                          },
                          icon: Icon(Icons.delete, color: Colors.red),
                        ),
                      );
                    },
                  ),
          ),
        ],
      ),
      floatingActionButton: ElevatedButton(
        onPressed: () {
          showModalBottomSheet(
            context: context,
            builder: (context) {
              return Container(
                height: 400,
                width: double.infinity,
                padding: EdgeInsets.all(20),
                decoration: BoxDecoration(
                  borderRadius: BorderRadius.only(
                    topRight: Radius.circular(20),
                    topLeft: Radius.circular(20),
                  ),
                  color: Colors.white,
                ),
                child: Column(
                  children: [
                    TextFormField(
                      controller: taskController,
                    ),
                    TextButton(onPressed: (){
                      setState(() {
                        tasks.add(taskController.text);
                      });
                      Navigator.pop(context);
                    }, child: Text('Create'))
                  ],
                ),
              );
            },
          );
        },
        child: Text('Create task'),
      ),
    );
  }
}