Populate an ASP Form using Javascript in Android Studio

Being relatively new to Android studio, I have been experimenting with various methods but now need some assistance. I am looking to input data into an ASP.NET Website-form using Android studio. The traditional JavaScript approach does not seem to be effective here.

myWebView.loadUrl("javascript: document.getElementByTagName('Benutzername').value = 'test'");

as well as

myWebView.loadUrl("javascript:document.getElementByName('<%= Benutzername.ClientId %>').value = '"+username+"';");

Is not producing the desired results :/

The HTML code for the input field is as follows:

<input name="Benutzername" type="text" style="text-align: center;  width:120px;border:solid 1px #6699CC;" onkeypress="{if (event.keyCode == 13){document.form1.Passwort.focus()};}" value="">

In the source code, this snippet can be found:

<td width="109" height="30"><div align="right" class="Stil12"><font face="Arial, Helvetica, sans-serif"><font size="3"><font size="2">Passwort:</font></font></font></div></td>
            <td width="126"><input name="Passwort" type="password" style="text-align: center; width:120px;border:solid 1px #6699CC;"
            onKeyPress="{if (event.keyCode == 13){if (Feldpruefung()) submit();};}" value="">
            </td>

I have been unable to make it work and attempting to simulate keypresses has also proved ineffective. Does anyone have any suggestions or ideas?

javascriptjavaandroidasp.netandroid-studio

Answer №1

It seems like the issue may be connected to the settings of your webview. Make sure to add the following code right after initializing your webview.

WebSettings settings = myWebView.getSettings();
settings.setDomStorageEnabled(true);
settings.setJavaScriptEnabled(true);
myWebView.setWebViewClient(new WebViewClient()());
myWebView.setWebChromeClient(new WebChromeClient());

If you need to invoke a method from your Java side using JavaScript, remember to utilize JavascriptInterface. You can refer to this resource for more information.

In regards to the line: document.getElementByTagName, it appears that the function you are attempting to call does not exist. Try using this alternative:

document.getElementsByTagName('some_name')[0].value = 'some_value';

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