PREENCHER CAMPO SITE COM WEBVIEW2

WebView wb;
wb = (WebView) findViewById(R.id.webView1);
wb.loadUrl("SUA_URL_AQUI");
wb.getSettings().setJavaScriptEnabled(true);

wb.setWebViewClient(new WebViewClient() {

    @Override
    public void onPageFinished(WebView web, String url) {
        view.loadUrl("javascript:(function(){document.getElementById("username_or_email").value = "texto"; document.getElementsByName("alvo")[0].SetAttribute("value", "descr")})()");

    }
});