How to search within ListView with custom adapter

Question

I looked at the following site: ListView Example

Which describes how to implement a search function in a listview which uses the default adapter and it works fine.

Answer 1

You need to override getFilter inside of your adapter and return a new customFilter object that you create. See this answer: No results with custom ArrayAdapter Filter

Edit:

@Override
    public Filter getFilter() {
        if(customFilter == null){
            customFilter = new CustomFilter();
        }
        return customFilter;
    }