67 lines
1.8 KiB
Dart
67 lines
1.8 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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class SettingsPage extends StatefulWidget {
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const SettingsPage({Key key}) : super(key: key);
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@override
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_SettingsPageState createState() => _SettingsPageState();
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}
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class _SettingsPageState extends State<SettingsPage> {
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SharedPreferences prefs;
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// The controllers are stored in the state so that,
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// when the Widget is rebuild, the cursors do not jump to the beginning of the input field.
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TextEditingController fontSizeController = TextEditingController();
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_SettingsPageState() {
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SharedPreferences.getInstance().then((newPrefs) {
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setState(() {
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prefs = newPrefs;
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});
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});
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}
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@override
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Widget build(BuildContext context) {
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if (prefs == null)
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return Scaffold(
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appBar: AppBar(
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title: const Text("Settings"),
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),
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body: const Text("Loading..."),
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);
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var fontSize = prefs.getDouble('font_size').toString();
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if (fontSizeController.text != fontSize)
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fontSizeController.text = fontSize;
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return Scaffold(
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appBar: AppBar(
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title: const Text("Settings"),
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),
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body: Center(
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child: ListView(
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padding: EdgeInsets.all(8.0),
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children: <Widget>[
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const Text(
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"Font size:",
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),
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TextField(
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enabled: true,
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enableInteractiveSelection: true,
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keyboardType: TextInputType.number,
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controller: fontSizeController,
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onSubmitted: (s) {
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try {
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var fontSize = double.parse(s);
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prefs.setDouble('font_size', fontSize);
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} on FormatException catch (e) {}
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},
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),
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const Divider(),
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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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