Flutter handle on click events in Webview - flutter

Question

I am trying to build webview in my mobile application
In the webview when click on search all the records to particular time period are shown it works but when click on Export To Excel button it should download the excel sheet but nothing works in my application..
Below is the code what I have done
Thanks for help!![enter image description here][1]
PS: URL hidden for security reasons..
`
Stack(
children: [
Container(
padding: EdgeInsets.all(10.0),
child: progress < 1.0
? LinearProgressIndicator(
value: progress,
backgroundColor: Colors.amber,
)
: Container()),
WebView(
initialUrl:
"URL",
javascriptMode: JavascriptMode.unrestricted,
gestureNavigationEnabled: true,
onWebViewCreated: (WebViewController controller) {
_webViewController = controller;
},
onProgress: (int progress) {
setState(() {
this.progress = progress / 100;
});
},
onPageFinished: (finish) {
setState(
() {
isLoading = false;
},
);
},
),
],
),

Answer 1

Use navigationDelegate parameter in Webview constructor.
WebView(
initialUrl: 'https://google.com',
navigationDelegate: (action) {
if (action.url.contains('mail.google.com')) {
print('Trying to open Gmail');
Navigator.pop(context); // Close current window
return NavigationDecision.prevent; // Prevent opening url
} else if (action.url.contains('youtube.com')) {
print('Trying to open Youtube');
return NavigationDecision.navigate; // Allow opening url
} else {
return NavigationDecision.navigate; // Default decision
}
},
),
That's it. Enjoy coding!