Android Custom Listview: Adding Search Function

i've a problem, i want an EditText above my ListView that performs a search in that ListView. Is it possible to do? This is the Activity code: public static class BirreChiareListVi

Solution 1:

Yes this is definitely possible to do. Android provides a Filterable interface for ArrayAdapters. The interface provides a getFilter() method where you can hook into the filtering process.

When the text changes in your EditText, you call adapter.getFilter().filter("filterString"). The text changing behaviour for the EditText is done by using a TextWatcher on the EditText. This following tutorial, explains it in good detail:

http://www.survivingwithandroid.com/2012/10/android-listview-custom-filter-and.html

EDIT:

To implement the filterable interface, just do this in your ArrayAdapter:

staticclassMyAdapterextendsArrayAdapter<String> implementsFilterable {
    privateFilter myFilter;

    @OverridepublicFiltergetFilter() {
        if (myFilter == null)
            myFilter = newMyFilter();

        return myFilter;
    }
}

where MyFilter is your own Filter class.