Obtain version information from prior installation

Question

Running the "Update current installation" option, how do I obtain the version info from the prior installation? I've been through the API and the closest thing I've seen is the public static interface ApplicationRegistry.ApplicationInfo.

Edit
This is how I am currently going about it. It works but am not sure if this is the most feasible method.

import com.install4j.api.ApplicationRegistry;

ApplicationRegistry.ApplicationInfo[] AppInfo = ApplicationRegistry.getApplicationInfoById(context.getApplicationId());

return AppInfo[0].getVersion();

Answer 1

You could use the

static ApplicationRegistry.ApplicationInfo getApplicationInfoByDir(java.io.File dir)

Checks if the specified directory contains an application installed by install4j and retrieves information about it.

This will return a ApplicationInfo instead of the ApplicationInfo[].