Show any dialog or modal in app over webview

Hi, I need to show alert or fullscreen modal when the internet connection lost.
Because of the way that this component implemented we cant't use normal dialog.
Is there any way to show any dialog?

Start by reviewing the plugin's Flutter-facing WebView integration and how it handles content displayed over the native WebView. Determine whether showing an alert or fullscreen modal when connectivity is lost is supported, and document or implement a clearly defined approach if the project decides to support it.

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