Cached Http-Request
und gefixxt: tastur überlagert sich mit eingabefeld
This commit is contained in:
Jonas Braus
@@ -1,10 +1,32 @@
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import 'dart:convert';
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import 'dart:io';
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import 'package:http/http.dart' as http;
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import 'package:shared_preferences/shared_preferences.dart';
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class FetchMenu {
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static var lastFetch = DateTime.now();
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static var fetched = false;
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static Future<List<String>> get() async {
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List<String> menus = [];
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// TODO: Proto:
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if (!fetched || DateTime.now().difference(lastFetch).inHours >= 2) {
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menus = await fromRequest();
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fetched = true;
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} else {
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menus = await fromCache();
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}
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return menus;
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}
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static Future<List<String>> fromCache() async {
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return await loadCache();
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}
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static Future<List<String>> fromRequest() async {
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List<String> menus = [];
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http.Response resp = await http.get(Uri.parse(
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"https://www.swfr.de/essen/mensen-cafes-speiseplaene/mensa-loerrach"));
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var content = resp.body.split("<h3>");
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@@ -15,7 +37,38 @@ class FetchMenu {
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menus.add(name);
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}
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}
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// End-Proto
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await storeCache(menus);
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lastFetch = DateTime.now();
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return menus;
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}
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static Future<void> storeCache(List<String> menus) async {
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var prefs = await SharedPreferences.getInstance();
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for (var i = 0; i < 4; i++) {
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prefs.setString("menuCache$i", "");
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if (i < menus.length) {
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prefs.setString("menuCache$i", menus[i]);
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}
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}
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}
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static Future<List<String>> loadCache() async {
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var prefs = await SharedPreferences.getInstance();
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List<String> menus = [];
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for (var i = 0; i < 4; i++) {
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var curr = prefs.getString("menuCache$i");
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if (curr != "") {
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menus.add(curr!);
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}
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}
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return menus;
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}
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+104
-101
@@ -13,117 +13,120 @@ class PageEssen extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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body: Stack(
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children: [
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// Hintergrundbild
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Container(
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width: 1600,
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height: 750,
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decoration: BoxDecoration(
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image: DecorationImage(
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image: AssetImage("assets/backgrounds/Essen.jpg"),
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fit: BoxFit.cover, // Deckt den gesamten Bildschirm ab
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colorFilter: ColorFilter.mode(
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Colors.white.withOpacity(0.2),
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BlendMode.dstATop,
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body: SingleChildScrollView(
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child: Stack(
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children: [
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// Hintergrundbild
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Container(
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width: 1600,
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height: 750,
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decoration: BoxDecoration(
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image: DecorationImage(
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image: AssetImage("assets/backgrounds/Essen.jpg"),
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fit: BoxFit.cover, // Deckt den gesamten Bildschirm ab
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colorFilter: ColorFilter.mode(
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Colors.white.withOpacity(0.2),
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BlendMode.dstATop,
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),
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),
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),
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),
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),
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// Vordergrundinhalte
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// Vordergrundinhalte
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Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Consumer<PageProvider>(
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builder: (context, pageProvider, child) {
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return Text(pageProvider.selectedEssenName, style: const TextStyle(fontSize: 40),);
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},
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),
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const SizedBox(height: 30,),
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Container(
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decoration: BoxDecoration(
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color: Colors.white.withOpacity(0.8),
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borderRadius: const BorderRadius.only(
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topLeft: Radius.circular(80),
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bottomRight: Radius.circular(80))),
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height: 400,
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width: 600,
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padding: EdgeInsets.symmetric(horizontal: 20),
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Center(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.center,
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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const Text(
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"Geschmack*",
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style: TextStyle(fontSize: 35),
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),
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Consumer<EssenProvider>(
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builder: (context, essenProvider, child) {
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return RatingStars(
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onRate: (value) {
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essenProvider.setRatingGeschmack(value);
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},
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initRating: essenProvider.ratingGeschmack,
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);
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},
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)
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],
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),
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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const Text(
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"Qualität*",
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style: TextStyle(fontSize: 35),
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),
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Consumer<EssenProvider>(
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builder: (context, essenProvider, child) {
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return RatingStars(
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onRate: (value) {
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essenProvider.setRatingQuali(value);
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},
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initRating: essenProvider.ratingQuali,
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);
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},
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)
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],
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),
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const SizedBox(
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height: 50,
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),
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Consumer<EssenProvider>(
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builder: (context, essenProvider, child) {
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return TextFormField(
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initialValue: essenProvider.freiText,
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onChanged: (value) {
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essenProvider.setFreiText(value);
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},
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autofocus: false,
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maxLength: 500,
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maxLines: 4,
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decoration: InputDecoration(
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labelText: "Dein Feedback (optional)",
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labelStyle: const TextStyle(fontSize: 20),
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(15),
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),
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),
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style: TextStyle(fontSize: 20),
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);
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SizedBox(height: 200,),
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Consumer<PageProvider>(
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builder: (context, pageProvider, child) {
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return Text(pageProvider.selectedEssenName, style: const TextStyle(fontSize: 40),);
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},
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),
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const SizedBox(height: 30,),
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Container(
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decoration: BoxDecoration(
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color: Colors.white.withOpacity(0.8),
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borderRadius: const BorderRadius.only(
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topLeft: Radius.circular(80),
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bottomRight: Radius.circular(80))),
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height: 400,
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width: 600,
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padding: EdgeInsets.symmetric(horizontal: 20),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.center,
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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const Text(
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"Geschmack*",
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style: TextStyle(fontSize: 35),
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),
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Consumer<EssenProvider>(
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builder: (context, essenProvider, child) {
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return RatingStars(
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onRate: (value) {
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essenProvider.setRatingGeschmack(value);
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},
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initRating: essenProvider.ratingGeschmack,
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);
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},
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)
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],
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),
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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const Text(
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"Qualität*",
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style: TextStyle(fontSize: 35),
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),
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Consumer<EssenProvider>(
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builder: (context, essenProvider, child) {
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return RatingStars(
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onRate: (value) {
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essenProvider.setRatingQuali(value);
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},
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initRating: essenProvider.ratingQuali,
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);
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},
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)
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],
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),
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const SizedBox(
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height: 50,
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),
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Consumer<EssenProvider>(
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builder: (context, essenProvider, child) {
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return TextFormField(
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initialValue: essenProvider.freiText,
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onChanged: (value) {
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essenProvider.setFreiText(value);
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},
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autofocus: false,
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maxLength: 500,
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maxLines: 4,
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decoration: InputDecoration(
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labelText: "Dein Feedback (optional)",
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labelStyle: const TextStyle(fontSize: 20),
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(15),
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),
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),
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style: TextStyle(fontSize: 20),
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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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],
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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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