hoc081098 / did_change_dependencies

Return a Stream that emits null and done event when didChangeDependencies is called for the first time.

did_change_dependencies

Author: Petrus Nguyễn Thái Học

Return a Stream that emits null and done event when State.didChangeDependencies is called for the first time.

Example

import 'dart:async';

import 'package:did_change_dependencies/did_change_dependencies.dart';
import 'package:flutter/material.dart';
import 'package:rxdart_ext/rxdart_ext.dart';

class Bloc {
  Stream<String> message$ = Stream.empty(); // just demo
}

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

  @override
  _MyPageState createState() => _MyPageState();
}

class _MyPageState extends State<MyPage> with DidChangeDependenciesStream {
  final bloc = Bloc();
  final subscriptions = <StreamSubscription<void>>[];

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

    final handle = (String msg) {
      // safe to access ScaffoldMessengerState.
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text(msg)),
      );
    };
    subscriptions <<
        didChangeDependencies$
            .exhaustMap((value) => bloc.message$)
            .listen(handle);

    subscriptions <<
        didChangeDependencies$.listen((event) {
          // do something when `didChangeDependencies` is called for the first time.
        });
  }

  @override
  void dispose() {
    super.dispose();
    subscriptions.forEach((s) => s.cancel());
  }

  @override
  Widget build(BuildContext context) {
    return Container();
  }
}

extension _ListExt<T> on List<T> {
  void operator <<(T t) => add(t);
}

did_change_dependencies's Issues

Dependency Dashboard

This issue lists Renovate updates and detected dependencies. Read the Dependency Dashboard docs to learn more.

Edited/Blocked

These updates have been manually edited so Renovate will no longer make changes. To discard all commits and start over, click on a checkbox.

• Update dependency rxdart_ext to ^0.2.0

Open

These updates have all been created already. Click a checkbox below to force a retry/rebase of any.

• Update actions/checkout action to v4
• Update codecov/codecov-action action to v4
• Update dependency dart to v3
• Update subosito/flutter-action action to v2
• Click on this checkbox to rebase all open PRs at once

Detected dependencies

github-actions

.github/workflows/flutter.yml

• actions/checkout v2
• subosito/flutter-action v1.5.3
• codecov/codecov-action v2.1.0

pub

pubspec.yaml

• flutter
• pedantic ^1.11.0
• rxdart_ext ^0.1.2
• dart >=2.12.0 <3.0.0
• flutter >=2.0.0

---

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