JSCallbackTest.java

package ca.weblite.jcbtest;

import static com.codename1.ui.CN.*;
import com.codename1.system.Lifecycle;
import com.codename1.ui.*;
import com.codename1.ui.layouts.*;
import com.codename1.io.*;
import com.codename1.ui.plaf.*;
import com.codename1.ui.util.Resources;

/**
 * This file was generated by <a href="https://www.codenameone.com/">Codename One</a> for the purpose
 * of building native mobile applications using Java.
 */
public class JSCallbackTest extends Lifecycle {
    @Override
    public void runApp() {
        Form hi = new Form("Browser", new BorderLayout());
        BrowserComponent browser = new BrowserComponent();
        browser.setURL("https://www.codenameone.com/");
        browser.addWebEventListener(BrowserComponent.onLoad, evt -> {
            browser.addJSCallback("window.myCallback = function(args) {callback.onSuccess(args)};"
                    , (args) -> {
                System.out.println("Hello: " + args);
            });
        });
        hi.add(BorderLayout.CENTER, browser);
        Button btn = new Button("Hello");
        btn.addActionListener(e -> {
            browser.execute("myCallback('Hello from Java')");
        });
        hi.add(BorderLayout.SOUTH, btn);
        hi.show();
    }
}