Creating Getfilter For Baseadapter For Object Titles?

I'm creating a ListView using CardsUI and I'm planning to create a search using getFilter(). The cards each have a title accessible via getTitle(). Every example of getFilter I've

Solution 1:

I've Implemented this kind of feature in my application.

A brief explanation. Implement your own class that extends Filter, like the next class:

privateclassPlanetFilterextendsFilter {
@Overrideprotected FilterResults performFiltering(CharSequence constraint) {
        FilterResultsresults=newFilterResults();
        // We implement here the filter logicif (constraint == null || constraint.length() == 0) {
            // No filter implemented we return all the list
            results.values = planetList;
            results.count = planetList.size();
        }
        else {
            // We perform filtering operation
            List<Planet> nPlanetList = newArrayList<Planet>();

            for (Planet p : planetList) {
                if (p.getName().toUpperCase().startsWith(constraint.toString().toUpperCase()))
                    nPlanetList.add(p);
            }

            results.values = nPlanetList;
            results.count = nPlanetList.size();

        }
        return results;
    }
}

In your base adapter implements Filterable interface and it has to implement getFilter() method:

@OverridepublicFiltergetFilter() {
    if (planetFilter == null)
        planetFilter = newPlanetFilter();

    return planetFilter;
}

And to tie all together, use textWatcher on your edittext, where you enter the text.

editTxt.addTextChangedListener(newTextWatcher() {

    @OverridepublicvoidonTextChanged(CharSequence s, int start, int before, int count) {
        System.out.println("Text ["+s+"]");
        aAdpt.getFilter().filter(s.toString());                           
    }

    @OverridepublicvoidbeforeTextChanged(CharSequence s, int start, int count,
            int after) {

    }

    @OverridepublicvoidafterTextChanged(Editable s) {
    }
});

That code is taken from the next tutorial.