Question

I’m trying to copy elements from one arrayList into another, I starting getting errors in my app and I think the problem is that I was doing shallow copies.

How can I add an item from one array into another doing a deep copy/clone?

This is how I was copying the elements up to now:

public ArrayList<ResolveInfo> myAppsArr = new ArrayList(); 
public ArrayList<ResolveInfo> allAppsArr = new ArrayList(); 

    myAppsArr.add(allAppsArr.get(0));

Answer 1

How can I add an item from one array into another doing a deep copy/clone?

ResolveInfo has a constructor that creates new duplicate object for you:

myAppsArr.add(new ResolveInfo(allAppsArr.get(0)));

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It appears this constructor was only added in API 17, you can try the generic clone method:

myAppsArr.add(allAppsArr.get(0).clone()); // No promises, I haven't tested this myself

Or you can create a method that manually creates a new ResolveInfo object since all of the member data is public.