refresh method

Implementation

Future<List<LiveSkippedApp>> refresh() async {
  if (_closed) return const [];
  final Uri? address = uri;
  final LiveDiscoveryResult found = address == null
      ? await runner.discover(LiveOptions(timeout: timeout))
      : LiveDiscoveryResult([
          await LiveApp.connect(
            address,
            device: address.hasPort
                ? '${address.host}:${address.port}'
                : address.host,
            package: runner.project.packageName,
            timeout: timeout,
          ),
        ], const []);
  final Set<String> running = {
    for (final LiveApp app in found.apps) app.uri.toString(),
  };

  for (final LiveApp app in List<LiveApp>.of(_apps)) {
    if (!running.contains(app.uri.toString()) || app.client.isClosed) {
      await _drop(app);
    }
  }
  for (final LiveApp fresh in found.apps) {
    final LiveApp? known = _find(fresh.uri);
    if (known != null) {
      known.status = fresh.status;
      await fresh.close();
      continue;
    }
    _apps.add(fresh);
    await _watch(fresh);
  }
  _updatePolling();
  onChange?.call();
  return found.skipped;
}