[Crosswalk-help] Reuse XWalkView when activity is recreated

[Zubkjv]

Hi all,

I'm using the embedded Android SDK in our application. Everything is
working fine, except when we have a new activity due to a rotation change.

First I tried to work with the methods saveState and restoreState by
retaining the bundle given by this methods. The page is reloaded, but not
the whole state (executed JS-methods for instance in a single page
application). I have the feeling that the url is just reloaded.

Secondly I tried to retain the view itself through activities. The first
time the page is rendered well. After activity recreation the view is gone.
With a normal WebView this way of working is working well. Why it isn't
working with Crosswalk?

Here is the sample code for crosswalk:
public class MainActivity extends Activity {

    private static XWalkView crosswalk;
    private static boolean newView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        newView = false;
        if (crosswalk == null) {
            crosswalk = new XWalkView(this);
            newView = true;
        }

        ViewGroup viewGroup = (ViewGroup) findViewById(R.id.test);
        if (!newView) {
            ((ViewGroup)crosswalk.getParent()).removeView(crosswalk);
        }

        viewGroup.addView(crosswalk);
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (newView) {
            crosswalk.load("http://www.google.be";, null);
        }
    }
}

Below you can find the working version for the default WebView:
public class WebViewActivity extends Activity {
    private static WebView webview;
    private static boolean newView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.test);
        newView = false;
        if (webview == null) {
            webview = new WebView(this);
            webview.getSettings().setJavaScriptEnabled(true);
            webview.getSettings().setDomStorageEnabled(true);
            newView = true;
        }

        ViewGroup viewGroup = (ViewGroup) findViewById(R.id.test);
        if (!newView) {
            ((ViewGroup)webview.getParent()).removeView(webview);
        }

        viewGroup.addView(webview);
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (newView) {
            webview.loadUrl("http://www.google.be";);
        }
    }
}

Thanks,
Kind regards,
Jo

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