webview_windows

A Flutter WebView plugin for Windows built on Microsoft Edge WebView2.

Target platform requirements

• WebView2 Runtime
• Windows 10 1809+

Development platform requirements

• Visual Studio 2019
• Windows 10 SDK 2004+ (10.0.19041.0)
• (recommended) nuget.exe in your $PATH (The makefile attempts to download nuget if it's not installed, however, this fallback might not work in China)

Demo

https://user-images.githubusercontent.com/720469/116716747-66f08180-a9d8-11eb-86ca-63ad5c24f07b.mp4

Limitations

This plugin provides seamless composition of web-based contents with other Flutter widgets by rendering off-screen.

Unfortunately, Microsoft Edge WebView2 doesn't currently have an explicit API for offscreen rendering. In order to still be able to obtain a pixel buffer upon rendering a new frame, this plugin currently relies on the Windows.Graphics.Capture API provided by Windows 10. The downside is that older Windows versions aren't currently supported.

Older Windows versions might still be targeted by using BitBlt for the time being.

See:

• https://github.com/MicrosoftEdge/WebView2Feedback/issues/20
• https://github.com/MicrosoftEdge/WebView2Feedback/issues/526
• https://github.com/MicrosoftEdge/WebView2Feedback/issues/547