Open Source Mobile Operating Systems Headless Browsers

A Flutter plugin that allows you to add an inline WebView, to use a headless WebView, and to open an in-app browser window. Adding the InAppWebView widget into your app is very simple. It’s just a widget like any other Flutter widget. Use InAppBrowser or ChromeSafariBrowser to open an in-app browser! ChromeSafariBrowser is based on Chrome Custom Tabs on Android and on SFSafariViewController on iOS. Create a Class that extends the InAppBrowser/ChromeSafariBrowser Class in order to override the callbacks to manage the browser events. It can be used to run a WebView in background without attaching an InAppWebView to the widget tree. As InAppWebView, it has the same options and events. Use InAppWebViewController to control the headless WebView instance.

Flutter Workmanager is an open-source Flutter plugin that enables developers to execute Dart code in the background on both Android and iOS devices, even when the application is not actively running. It acts as a wrapper around native background task systems such as Android’s WorkManager and iOS background execution APIs, providing a unified interface for scheduling and managing tasks across platforms. The plugin is designed to handle asynchronous operations that need to run independently of the app’s lifecycle, such as syncing data, uploading files, fetching notifications, or performing maintenance tasks. It supports both one-off tasks and periodic tasks, allowing developers to configure execution frequency and constraints such as network availability or device state.

There are a few visual regression tools for the web, but most either cannot be run headless or use phantomjs which is deprecated and a browser nobody is actually using. They usually also require you to maintain fixtures. With react-native it's now possible to target multiple platforms with a single code base, but there's no single tool to test all to my knowledge. Loki aims to have easy setup, no to low maintenance cost, reproducible tests independent of which OS they are run on, runnable on CI, and support all platforms storybook does.