| 1 | import 'package:flutter/material.dart'; |
| 2 | |
| 3 | class FAQItem extends StatefulWidget { |
| 4 | FAQItem(this.title, this.text); |
| 5 | |
| 6 | final String title; |
| 7 | final String text; |
| 8 | |
| 9 | @override |
| 10 | State<StatefulWidget> createState() => FAQItemState(); |
| 11 | } |
| 12 | |
| 13 | class FAQItemState extends State<FAQItem> { |
| 14 | FAQItemState() : isActive = false; |
| 15 | |
| 16 | bool isActive; |
| 17 | |
| 18 | @override |
| 19 | void initState() { |
| 20 | isActive = false; |
| 21 | super.initState(); |
| 22 | } |
| 23 | |
| 24 | @override |
| 25 | Widget build(BuildContext context) { |
| 26 | final addIcon = Icon(Icons.add, color: Theme.of(context).colorScheme.onSurface); |
| 27 | final removeIcon = Icon(Icons.remove, color: Theme.of(context).colorScheme.primary); |
| 28 | final icon = isActive ? removeIcon : addIcon; |
| 29 | final color = |
| 30 | isActive ? Theme.of(context).colorScheme.primary : Theme.of(context).colorScheme.onSurface; |
| 31 | |
| 32 | return ListTileTheme( |
| 33 | contentPadding: EdgeInsets.fromLTRB(0, 6, 24, 6), |
| 34 | child: ExpansionTile( |
| 35 | title: Text( |
| 36 | widget.title, |
| 37 | style: Theme.of(context).textTheme.bodyLarge?.copyWith( |
| 38 | fontWeight: FontWeight.w500, |
| 39 | color: color, |
| 40 | ), |
| 41 | ), |
| 42 | trailing: icon, |
| 43 | onExpansionChanged: (value) => setState(() => isActive = value), |
| 44 | children: <Widget>[ |
| 45 | Row( |
| 46 | mainAxisAlignment: MainAxisAlignment.start, |
| 47 | children: <Widget>[ |
| 48 | Expanded( |
| 49 | child: Container( |
| 50 | padding: EdgeInsets.only( |
| 51 | right: 24.0, |
| 52 | ), |
| 53 | child: Text( |
| 54 | widget.text, |
| 55 | style: Theme.of(context).textTheme.bodyMedium, |
| 56 | ), |
| 57 | ), |
| 58 | ) |
| 59 | ], |
| 60 | ), |
| 61 | ], |
| 62 | ), |
| 63 | ); |
| 64 | } |
| 65 | } |