Use case

Migrate the "webview_flutter" package to the federated plugin architecture. This would result in the following benefits:

1. Makes it easier to add support for additional platforms (specifically desktop support e.g. Windows, macOS and Linux);
2. Allows for easier separation of concerns especially when different platforms require different configuration settings;
3. The federated architecture also makes it easier to write automated tests and guard the API;
4. Confirms to the architecture of most other Flutter plugins, making it easier for developers to understand the project layout and contribute to the project.

Proposal

To migrate the in_app_purchase package to federated architecture we should take the following steps:

• Move the webview_flutter into its own subdirectory ("webview_flutter/webview_flutter") [webview_flutter] Move webview_flutter to webview_flutter/webview_flutter plugins#4152;
• Create the webview_flutter_platform_interface package (see PR [webview_flutter] Implementation of the webview_flutter_platform_interface package plugins#4302);
  • Copy the LICENSE file from the webview_flutter package;
  • Add a CHANGELOG.md file;
  • Define a pubspec.yaml file;
  • Create a README.md file;
  • Define the platform interface in webview_flutter_platform.dart;
  • Implement the default implementation in method_channel_webview_flutter.dart;
• Create an Android implementation of the webview_flutter_platform_interface in a separate webview_flutter_android package (see PR [webview_flutter] Extract Android implementation into a separate package plugins#4343);
• Create an iOS implementation of the webview_flutter_platform_interface in a separate webview_flutter_darwin package (see PR [webview_flutter] Extract WKWebView implementation into a separate package plugins#4345);
• Refactor package webview_flutter to use the webview_flutter_android and webview_flutter_darwin packages.
  • Make sure to remove exclusion of webview_flutter_android and webview_flutter_wkwebview from exclude_all_plugins_app.yaml configuration file.