Flutter - URL Launcher Link widget buttons not showing on target: LinkTarget.self - flutter

I open a web page in the application using the url launcher - Link widget, but these buttons are not visible.
This buttons
My codes

Related

There are no Webview widgets or WebviewScaffold widgets

I am trying to convert the website into an app in flutter. But it doesn't have Webview widget or WebviewScaffold widget and when I add it it gives error.
How can I add the website URL to my project in this situation?
[Image of my project] 1

Single page navigation with flutter web

I'm trying to create a web app that only renders one page, and the other pages (or views) are rendered when you press a button related to that specific view. Like the Flutter Gallery website, when you click on a widget info in the "Categories" section
Is there any workaround for this or do I have to create my own router?
you can keep all widgets on one page package by creating a switch statement in your build page. switch between different widget when rendering the scaffolding.

Flutter drawer menu open behind flutter_webview_plugin

I am new in flutter i am using flutter_webview_plugin for open my web in flutter application with drawer navigation menu.
But the issue is my drawer menu is behind the flutter_webview
Maybe the flutter_webview load after drawer menu
Check this image this is for issue
If you are opening the link from the Drawer (by clicking on a drawer item), then am guessing you are not closing the Drawer, that is why it is showing on the background,
If so, assign a key to the Scaffold then call key.openEndDrawer() to close the drawer programmatically, before you open the WebView

How to create a custom dialog in flutter?

I'm working on a flutter application, I want to show a dialog above button if clicked as this image:
How can I do it?

Flutter URL_LAUNCHER and return

on flutter web , I am using url launcher. A new tab opens , when user close the new tab and return on original tab I want the web page to auto reload
is this possible in flutter web?