cpd/lib/widgets/popup.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:cpd/controller/habitmanager.dart';

// save button + speichern durch enter

class AddHabitPopup extends StatefulWidget {
  final Function? onHabitAdded;

  TextEditingController titleController = TextEditingController();
  TextEditingController subtitleController = TextEditingController();

  AddHabitPopup({this.onHabitAdded});
  @override
  _AddHabitPopupState createState() => _AddHabitPopupState();
}

class _AddHabitPopupState extends State<AddHabitPopup> {

  //habitmanager aufrufen
  Habitmanager habitmanager = Habitmanager();


  String title = '';
  String subtitle = '';
  final _formKey = GlobalKey<FormState>();

  @override
  Widget build(BuildContext context) {
    return AlertDialog(
      title: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          IconButton(
            icon: const Icon(Icons.close, color: Colors.red),
            onPressed: () {
              Navigator.of(context).pop();
            },
          ),
           const Expanded(child: Text(
              'Add task',
            textAlign: TextAlign.center,
          )
          )

        ],
      ),
      content: Column(
        mainAxisSize: MainAxisSize.min,
        crossAxisAlignment: CrossAxisAlignment.start,
        children: <Widget>[
          const Divider(thickness: 3),
          const Text(
              'Tasks start each day as incomplete.\n'
                  'Mark a task as done to keep your progress up.\n'
                  'CREATE YOUR OWN:',
            textAlign: TextAlign.start,
            style: TextStyle(
              color: Colors.black,
              fontWeight: FontWeight.bold,
              fontFamily: 'Arial',
              fontSize: 14,
            ),
          ),

          Form(
            key: _formKey,
            child: Column(
              mainAxisSize: MainAxisSize.min,
              children: <Widget>[
                TextFormField(
                  controller: widget.titleController,
                  decoration: const InputDecoration(
                    icon: Icon(Icons.title),
                    labelText: "Title",
                    hintText: "Enter task title",
                  ),
                  keyboardType: TextInputType.text,
                  validator: (String? value) {
                    return (value == null || value.trim().isEmpty)
                        ? "Please enter a title"
                        : null;
                  },
                ),
                TextFormField(
                  controller: widget.subtitleController,
                  decoration: const InputDecoration(
                    icon: Icon(Icons.description),
                    labelText: "Description",
                    hintText: "Describe how you plan to achieve your goal",
    ),
    keyboardType: TextInputType.text,
    validator: (String? value) {
    return (value == null || value.trim().isEmpty)
    ? "Please enter a title"
        : null;
    },
                  ),
    // auswahl an icons zur verfügung stellen

    const SizedBox(height: 16.0),
    ElevatedButton(
    onPressed: () {
      if (_formKey.currentState!.validate()) {
        String title = widget.titleController.text;
        String subtitle = widget.subtitleController.text;
        habitmanager.addNewHabit(false, title, subtitle, const Icon(Icons.label_important));
        ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(
    content: Text('Form saved!'),
    ),
    );
        widget.onHabitAdded?.call();
        //fester schließen
        Navigator.of(context).pop();
        // ui wird neu gezeichnet
    }
    },
    child: const Text('Save'),
    )
              ],
    ),
          ),
        ],
      ),
    );
  }
}