ino_glib_async_example 0.0.2

An linux plugin example of an async response from the platform using g_idle_add().

example/lib/main.dart

import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:ino_glib_async_example/ino_glib_async_example.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  String _someData = '(no data)';
  final _inoGlibAsyncExamplePlugin = InoGlibAsyncExample();

  @override
  void initState() {
    super.initState();
    initPlatformState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    // We also handle the message potentially returning null.
    try {
      platformVersion = await _inoGlibAsyncExamplePlugin.getPlatformVersion() ??
          'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    String someData;
    _inoGlibAsyncExamplePlugin.getSomeDataAsync().then((result) {
      someData = result ?? '(??)';
      setState(() {
        _someData = someData;
      });
    }).onError((error, stackTrace) {
      setState(() {
        _someData = 'Failed to getSomeDataAsync().';
      });
    });

    // 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(() {
      _platformVersion = platformVersion;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: Text(
              'Running on: $_platformVersion\ngetSomeDataAsync result: $_someData'),
        ),
      ),
    );
  }
}