wear_ongoing_activity 0.1.4+1

Create and maintain ongoing activity notifications on Wear OS

example/lib/main.dart

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:wear_ongoing_activity/wear_ongoing_activity.dart';

void main() {
  runApp(const MaterialApp(home: MyHomePage()));
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key});

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  var _counter = 0;
  var _ongoing = false;
  Timer? _updateTimer;

  OngoingActivityStatus get _status => OngoingActivityStatus(
        templates: [
          '#label#: #count#',
        ],
        parts: [
          TextPart(name: 'label', text: 'Count'),
          TextPart(name: 'count', text: '$_counter'),
        ],
      );

  void _start() {
    setState(() => _ongoing = true);
    WearOngoingActivity.start(
      channelId: 'ongoing_activity',
      channelName: 'Ongoing Activity',
      notificationId: 12345,
      category: NotificationCategory.workout,
      smallIcon: 'ic_launcher',
      staticIcon: 'ic_launcher',
      status: _status,
    );
  }

  void _update() async {
    setState(() => _counter++);

    _updateTimer?.cancel();
    _updateTimer = Timer.periodic(
      const Duration(seconds: 1),
      (timer) async {
        // If the activity is not started yet, return and try again later
        if (!await WearOngoingActivity.isOngoing()) return;
        unawaited(WearOngoingActivity.update(_status));
        _updateTimer?.cancel();
      },
    );
  }

  void _stop() {
    setState(() => _ongoing = false);
    WearOngoingActivity.stop();
  }

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

    Permission.notification.request();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Text(
            '$_counter',
            style: Theme.of(context).textTheme.headlineMedium,
          ),
          Row(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              if (_ongoing)
                IconButton(icon: const Icon(Icons.stop), onPressed: _stop)
              else
                IconButton(
                  icon: const Icon(Icons.play_arrow),
                  onPressed: _start,
                ),
              IconButton(icon: const Icon(Icons.add), onPressed: _update),
            ],
          ),
        ],
      ),
    );
  }
}