Mobile Platform as a Service:URL opening decision logic

Validate URLs before calling the following interfaces:

public class MPNebula {
    /**
    * Starts an online URL.
    *
    * @param url The online URL.
    */
    public static void startUrl(String url);
    
    /**
    * Starts an online URL.
    *
    * @param url   The online URL.
    * @param param The startup parameters.
    */
    public static void startUrl(String url, Bundle param);
}

// Create a page.
public static final void openH5(String url) {
    if (TextUtils.isEmpty(url)) {
        return;
    }
    H5Service h5Service = LauncherApplicationAgent.getInstance().getMicroApplicationContext()
            .findServiceByInterface(H5Service.class.getName());
    H5Bundle bundle = new H5Bundle();
    Bundle param = new Bundle();
    // The online URL to open.
    param.putString(H5Param.LONG_URL,url);
    bundle.setParams(param);
    if (h5Service != null) {
        // Create the page synchronously.
        H5Page h5Page=h5Service.createPage(activity,bundle);
        
        // Create the page asynchronously.
        h5Service.createPageAsync(activity, bundle, h5PageReadyListener);
    }
}