Fill form in WebView with Javascript

Question

I\'m trying to fill Webforms from a Webview in Android. I\'ve already found this piece of code here: Fill fields in webview automatically

String username = \         


        

Answer 1

I had the same issue, and after following different explanations on stackOverflow, I succeed to make mine working.

here is my approach

webView.loadUrl(url);
        webView.getSettings().setDomStorageEnabled(true);
        webView.setWebViewClient(new WebViewClient(){
            public void onPageFinished(WebView view, String url) {
                String email="email@email.jp";

                //view.loadUrl("javascript:document.getElementById('email').value = '"+email+"'");
                view.loadUrl("javascript:document.forms[0].email.value = '"+email+"';");
                Log.d("email", "can not add email");
            }
        });

2 things : 1) you need to add this line webView.getSettings().setDomStorageEnabled(true); (reference: Android WebView always returns null for javascript getElementById on loadUrl)

2) you need to access the variable in your php code by using this view.loadUrl("javascript:document.forms[0].email.value = '"+email+"';"); as you can see in my code I used the solution proposed by @gnpaolo, but it didn't work for me so I commented it and use this one. (reference: How to inject a String into Android WebView)

Finally, just want to add that you do not need to create a special javascript.

one more thing the forms[0] is the position of the variable in the php form, and in my case, I have the email of the user, so I wrote view.loadUrl("javascript:document.forms[0].email.value = '"+email+"';");

Hope, this can help others.