In Flutter, touch and click events are not working in webview. so instead of write click event in dart.. write click event on Javascript by element tag name, class name or id

WebView Flutter

WebView(
    initialUrl: "https://github.com/login",
    onWebViewCreated: (controller) {
    _myController = controller;
    },
    onPageFinished: (url) {
    
    _myController.evaluateJavascript(
        "document.getElementsByName('commit')[0].addEventListener('click',function(){ try { showResult.postMessage(document.getElementById('login_field').value);  } catch (err) {} });");
        
    },
    onPageStarted: (url) {},
    javascriptMode: JavascriptMode.unrestricted,
    javascriptChannels: Set.from([
    JavascriptChannel(
    name: "showResult",
    onMessageReceived: (JavascriptMessage result) {
    if (result.message != null && result.message != "") {
    // The result data will be stored in result.message 
    }}),]),)