PAC (proxy auto-config) for WebView

[maoist2009]

What is the problem or limitation you are having?

I want to set pac (auto proxy) of webview.

Describe the solution you'd like

Maybe a switch like user-agent.

On windows webview 2, i've written one(not python), it use an chromium command line swtich

 --proxy-pac-url=http://127.0.0.1:4008/proxy.pac

to start webview2.

On android webview, jetpack supports proxy setting but i don't know whether pac is provided. refrences

Describe alternatives you've considered

If it is not supported, maybe we need to deal with the http requets manually.

Additional context

No response

[freakboy3742]

I'm not fundamentally opposed to adding support for proxy configuration; however this is going to need a lot more research to determine what is actually possible across the platforms we support. Unless there's a prospect of supporting this on at least some platforms through a publicly available API, there's not much we can do.

[maoist2009]

So is there anyway to directly interact with android webview like we do in java or kotlin?

[freakboy3742]

Well... yes... that's how Toga works. It's invoking Android APIs using the Chaquopy bridge.

[maoist2009]

So, if i want to add google maven

https://developer.android.com/jetpack/androidx/releases/webkit

How should i specify briefscape?.

[freakboy3742]

I'm afraid I can't read Chinese, so I have a limited ability to understand what you're linking there.

If you're asking the general question about how to access an Android API - you use the Chaquopy API I linked earlier, and modify the build_gradle_dependencies setting in your Briefcase configuration to ensure any dependencies are included. Briefcase's Toga template already does this for androidx.swiperefreshlayout. You'd need to use similar handling to include androidx.webkit.

It's also worth noting that Toga isn't using androidx.webkit; it's using android.webview.

It might be possible to modify toga-android to use a jetpack androidx webkit view, but that would require a substantial rewrite of the Toga-android WebView widget.