Make simple http requests with a Flutter widget.
Here is a quick look at using the fetch widget:
// import 'dart:convert' as convert;
// import 'package:http/http.dart' as http;
FetchWidget<Post>(
url: "https://jsonplaceholder.typicode.com/posts/1",
transform: _toPost,
builder: (model) {
if (model.isWaiting) {
return Text('Loading...');
}
if (model.isDone && model.statusCode != 200) {
return Text(
'Could not connect to API service. `${model.response.body}`');
}
return Column(
children: <Widget>[
Text(model.data.id),
Text(model.data.title),
]
)
},
)
//
Post _toPost(http.Response response) {
final json = convert.json.decode(response.body);
return Post(json['id'], json['title']);
}
This was inspired by https://github.com/tkh44/holen
example/lib/main.dart
import 'dart:convert' as convert;
import 'package:flutter/material.dart';
import 'package:flutter_fetch_widget/flutter_fetch_widget.dart';
void main() => runApp(new MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new MaterialApp(
title: 'Flutter Demo',
theme: new ThemeData(
primarySwatch: Colors.blue,
),
home: new MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => new _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
title: new Text(widget.title),
),
body: new Center(
child: new FetchWidget<Post>(
url: 'https://jsonplaceholder.typicode.com/posts/1',
transform: _toPost,
builder: (fetchPost) {
if (fetchPost.isWaiting) {
return new Text('Loading...');
}
if (fetchPost.isDone && fetchPost.statusCode != 200) {
return new Text(
'Could not connect to API service. `${fetchPost.response.body}`');
}
return new Column(
children: <Widget>[
new Text('Id: ${fetchPost.data.id}'),
new Text('Title: ${fetchPost.data.title}'),
new RaisedButton(
color: Colors.green,
textColor: Colors.white,
onPressed: () => fetchPost.doFetch(),
child: new Text('Refresh')),
],
);
},
),
),
);
}
}
Post _toPost(response) {
final Map<String, dynamic> json = convert.json.decode(response.body);
return new Post(json['id'], json['title']);
}
class Post {
final int id;
final String title;
Post(this.id, this.title);
}
Add this to your package's pubspec.yaml file:
dependencies:
flutter_fetch_widget: ^0.0.1+1
You can install packages from the command line:
with Flutter:
$ flutter packages get
Alternatively, your editor might support flutter packages get
.
Check the docs for your editor to learn more.
Now in your Dart code, you can use:
import 'package:flutter_fetch_widget/flutter_fetch_widget.dart';
Version | Uploaded | Documentation | Archive |
---|---|---|---|
0.0.1+1 | Apr 5, 2018 |
|
|
0.0.1 | Apr 5, 2018 |
|
|
Popularity:
Describes how popular the package is relative to other packages.
[more]
|
26
|
Health:
Code health derived from static analysis.
[more]
|
100
|
Maintenance:
Reflects how tidy and up-to-date the package is.
[more]
|
70
|
Overall:
Weighted score of the above.
[more]
|
57
|
We analyzed this package on Feb 14, 2019, and provided a score, details, and suggestions below. Analysis was completed with status completed using:
Detected platforms: Flutter
References Flutter, and has no conflicting libraries.
The package description is too short. (-20 points)
Add more detail to the description
field of pubspec.yaml
. Use 60 to 180 characters to describe the package, what it does, and its target use case.
Package is pre-v0.1 release. (-10 points)
While nothing is inherently wrong with versions of 0.0.*
, it might mean that the author is still experimenting with the general direction of the API.
Package | Constraint | Resolved | Available |
---|---|---|---|
Direct dependencies | |||
Dart SDK | >=2.0.0-dev.28.0 <3.0.0 | ||
flutter | 0.0.0 | ||
http | ^0.11.3+16 | 0.11.3+17 | 0.12.0+1 |
Transitive dependencies | |||
async | 2.0.8 | ||
charcode | 1.1.2 | ||
collection | 1.14.11 | ||
http_parser | 3.1.3 | ||
meta | 1.1.6 | 1.1.7 | |
path | 1.6.2 | ||
sky_engine | 0.0.99 | ||
source_span | 1.5.4 | ||
string_scanner | 1.0.4 | ||
term_glyph | 1.1.0 | ||
typed_data | 1.1.6 | ||
vector_math | 2.0.8 | ||
Dev dependencies | |||
flutter_test | |||
test | ^0.12.0 |