From cbc265e04b168d5ab503a30d4fc920d57538a16f Mon Sep 17 00:00:00 2001
From: Maximilian Betz <Maximilian.Betz@awi.de>
Date: Thu, 3 Feb 2022 16:06:16 +0100
Subject: [PATCH] added first future http get, not working yet
---
android/app/src/main/AndroidManifest.xml | 2 +
lib/configuration.dart | 58 +++++++++++++++++++++++-
lib/datamodel.dart | 10 ++++
pubspec.lock | 14 ++++++
pubspec.yaml | 1 +
5 files changed, 83 insertions(+), 2 deletions(-)
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index 1574dd3..28156ba 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -31,4 +31,6 @@
android:name="flutterEmbedding"
android:value="2" />
</application>
+ <!-- Required to fetch data from the internet. -->
+ <uses-permission android:name="android.permission.INTERNET" />
</manifest>
diff --git a/lib/configuration.dart b/lib/configuration.dart
index 15106e3..68b83cf 100644
--- a/lib/configuration.dart
+++ b/lib/configuration.dart
@@ -1,5 +1,44 @@
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
+import 'package:http/http.dart' as http;
+import 'dart:convert';
+
+class Collection {
+ final int id;
+ final String description;
+ final String collectionName;
+
+ const Collection({
+ required this.id,
+ required this.description,
+ required this.collectionName,
+ });
+
+ factory Collection.fromJson(Map<String, dynamic> json) {
+ return Collection(
+ id: json['id'],
+ collectionName: json['collectionName'],
+ description: json['description'],
+ );
+ }
+}
+
+Future<Collection> fetchCollection() async {
+ print("Start HTTP GET++##");
+
+ final response = await http
+ .get(Uri.parse('https://sensor.awi.de/rest/sensors/collections/getCollection/22'));
+
+ if (response.statusCode == 200) {
+ // If the server did return a 200 OK response,
+ // then parse the JSON.
+ return Collection.fromJson(jsonDecode(response.body));
+ } else {
+ // If the server did not return a 200 OK response,
+ // then throw an exception.
+ throw Exception('Failed to load Collection');
+ }
+}
class Configuration extends StatefulWidget {
@@ -18,12 +57,16 @@ class _MyHomePageState extends State<Configuration> {
'100',
];
- late Future<String> eventTypes;
+
+ late Future<Collection> futureCollection;
@override
void initState() {
super.initState();
+ futureCollection = fetchCollection();
}
+ late Future<String> eventTypes;
+
void _incrementCounter() {
setState(() {
@@ -80,7 +123,18 @@ class _MyHomePageState extends State<Configuration> {
});
},
),
- Text('blabla'),
+ FutureBuilder<Collection>(
+ future: futureCollection,
+ builder: (context, snapshot){
+ if (snapshot.hasData)
+ {
+ return Text(snapshot.data!.collectionName);
+ }
+ else{
+ return CircularProgressIndicator();
+ }
+ }
+ ),
],
),
),
diff --git a/lib/datamodel.dart b/lib/datamodel.dart
index 04c07e9..8e9b1e8 100644
--- a/lib/datamodel.dart
+++ b/lib/datamodel.dart
@@ -83,6 +83,7 @@ abstract class DeviceStoreBase {
abstract class EventStoreBase{
List<Event> store = [];
+
}
abstract class EventCurrentBase{
@@ -91,6 +92,15 @@ abstract class EventCurrentBase{
abstract class EventTypeStoreBase{
List<EventType> store = [];
+
+ int getEventIdFromName(String name) {
+ for (var eventType in store) {
+ if (eventType.name == name) {
+ return eventType.id;
+ }
+ }
+ throw Exception('Event with name :' + name + ' was not found.');
+ }
}
class EventStoreInstance extends EventStoreBase {
diff --git a/pubspec.lock b/pubspec.lock
index b87e8a0..4fae244 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -93,6 +93,20 @@ packages:
description: flutter
source: sdk
version: "0.0.0"
+ http:
+ dependency: "direct main"
+ description:
+ name: http
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "0.13.4"
+ http_parser:
+ dependency: transitive
+ description:
+ name: http_parser
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "4.0.0"
js:
dependency: transitive
description:
diff --git a/pubspec.yaml b/pubspec.yaml
index e2f48a4..60438c9 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -31,6 +31,7 @@ dependencies:
sdk: flutter
shared_preferences: ^2.0.12
+ http: ^0.13.4
# The following adds the Cupertino Icons font to your application.
--
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