95 lines
2.8 KiB
Dart
95 lines
2.8 KiB
Dart
import 'package:flutter/material.dart';
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double _currentSliderValue = 50;
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class MySlider extends StatefulWidget {
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final String _title;
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const MySlider(this._title, {Key? key}) : super(key: key);
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@override
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State<StatefulWidget> createState() => SliderState();
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double getSliderValue() {
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return _currentSliderValue;
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}
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}
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class SliderState extends State<MySlider> {
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TextEditingController _textFieldController = TextEditingController();
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String? _errorText;
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@override
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void initState() {
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super.initState();
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_textFieldController.text = _currentSliderValue.toStringAsFixed(0);
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}
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@override
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Widget build(BuildContext context) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Text(widget._title),
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SizedBox(height: 16),
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Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Expanded(
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child: Slider(
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value: _currentSliderValue,
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min: 1,
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max: 100,
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divisions: 99,
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label: _currentSliderValue.round().toString(),
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onChanged: (double value) {
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setState(() {
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_currentSliderValue = value;
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_textFieldController.text = _currentSliderValue.toStringAsFixed(0);
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_errorText = null;
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});
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},
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),
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),
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SizedBox(width: 16),
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SizedBox(
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width: 100,
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child: TextFormField(
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controller: _textFieldController,
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keyboardType: TextInputType.number,
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decoration: InputDecoration(
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labelText: 'Stimmung',
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errorText: _errorText,
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),
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onChanged: (text) {
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if (text.isEmpty) {
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setState(() {
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_currentSliderValue = 1;
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_textFieldController.clear();
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_errorText = null;
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});
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return;
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}
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final value = double.tryParse(text);
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if (value == null || value < 1 || value > 100) {
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setState(() {
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_textFieldController.clear();
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_errorText = 'Please enter a value between 1 and 100.';
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});
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return;
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}
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setState(() {
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_currentSliderValue = value;
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_errorText = null;
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});
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},
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),
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),
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],
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),
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],
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),
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);
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}
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}
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