我想从Android的一个web视图填写Web表单。 我已经发现了这片code在这里：填写的WebView领域自动

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 = "cristian";
webview.loadUrl("javascript:document.getElementById('username').value = '"+username+"';");

不幸的是我不明白的地方我都开我要填写页面。

Unfortunatly I dont understand where I have to open the page I want to fill in.

setContentView(R.layout.web);
final WebView mWebView = (WebView) findViewById(R.id.webview);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl(url);
String user="u";
String pwd="p";
mWebView.loadUrl("javascript:document.getElementById('username').value = '"+user+"';document.getElementById('password').value='"+pwd+"';");

当我尝试这种方式，被显示，但没有在形式的任何值的部位。

When I try it this way, the site gets displayed but without any values in the forms.

感谢您帮助

推荐答案

您应填写这些值的页面加载后。这是使用code的例子：

You should fill the values after the page has been loaded. This is an example using your code:

mWebView.loadUrl(url);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.setWebViewClient(new WebViewClient() {
    public void onPageFinished(WebView view, String url) {
        String user="u";
        String pwd="p";
        view.loadUrl("javascript:document.getElementById('username').value = '"+user+"';document.getElementById('password').value='"+pwd+"';");
    }
});