How to implement getFilter on a BaseAdapter?

Question

I am trying to implement a getFilter() on a base adapter to filter out search results on a List. Is there any example of how to implement a getFilter()?

MainActivity

Answer 1

Can you post your full AppInfoAdapter? Also is there any reason extending from BaseAdapter and not ArrayAdapter? If you have an ArrayList of objects, use ArrayAdapter, it already implements Filterable interface.

Actually you are using a List, your adapter can be rewritten to extends ArrayAdapter which already is Filterable.

public class AppInfoAdapter extends ArrayAdapter {

    private Context mContext;
    PackageManager mPackManager;

    public AppInfoAdapter(Context c, List list, PackageManager pm) {
        super(c, 0, new ArrayList());
        mContext = c;
        mPackManager = pm;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // get the selected entry
        ApplicationInfo entry = (ApplicationInfo) getItem(position);

        // reference to convertView
        View v = convertView;

        // inflate new layout if null
        if(v == null) {
            LayoutInflater inflater = LayoutInflater.from(mContext);
            v = inflater.inflate(R.layout.layout_appinfo, null);
        }

        // load controls from layout resources
        ImageView ivAppIcon = (ImageView)v.findViewById(R.id.ivIcon);
        TextView tvAppName = (TextView)v.findViewById(R.id.tvName);
        TextView tvPkgName = (TextView)v.findViewById(R.id.tvPack);

        // set data to display
        ivAppIcon.setImageDrawable(entry.loadIcon(mPackManager));
        tvAppName.setText(entry.loadLabel(mPackManager));
        tvPkgName.setText(entry.packageName);

        // return view
        return v;
    }
}