how to add custom options that gets invoked after the application is installed using install4j?

Question

Is it possible to have a custom option after the application is installed using install4j. something like a custom application with screens and actions that needs to be invoked directly by the user by clicking on it after installation of the application.

Answer 1

Yes, they are called "installer applications" in install4j. On the "Installer->Screens & Actions" step, click on the add button, then select "Add application" and choose "Empty custom application" from the application templates.

You can invoke such applications via the API by calling

com.install4j.api.launcher.ApplicationLauncher.launchApplication(
  "<id>", null, false, null
);

See https://www.ej-technologies.com/resources/install4j/help/api/com/install4j/api/launcher/ApplicationLauncher.html for the Javadoc.