package_info 0.0.1 package_info: ^0.0.1 copied to clipboard
Plugin for querying information about the application package.
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:package_info/package_info.dart' as package_info;
void main() {
runApp(new MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@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> {
String _version = 'Unknown';
@override
void initState() {
super.initState();
initPackageState();
}
// Platform messages are asynchronous, so we initialize in an async method.
Future<Null> initPackageState() async {
String version;
// Platform messages may fail, so we use a try/catch PlatformException.
try {
version = await package_info.version;
} on PlatformException {
version = 'Failed to get version.';
}
// If the widget was removed from the tree while the asynchronous platform
// message was in flight, we want to discard the reply rather than calling
// setState to update our non-existent appearance.
if (!mounted) {
return;
}
setState(() {
_version = version;
});
}
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
title: const Text('Plugin example app'),
),
body: new Center(child: new Text('App version is: $_version\n')),
);
}
}