Filter ListView with arrayadapter

Question

I\'m trying to filter a listview with arrayadapter. The arraydapter parameter is a String[][]. The problem is that anything happens. I must override the Filter interface? In

Answer 1

Here I mention the code of how We can filter the listView Data using custom Adapter
Its really help you

ListViewAdapter.java

public class ListViewAdapter extends BaseAdapter {

    // Declare Variables
    Context mContext;
    LayoutInflater inflater;
    public List allFoodItemlist;
    public ArrayList arraylist;

    public ListViewAdapter(Context context, List allFoodItemlist) {
        mContext = context;
        this.allFoodItemlist = allFoodItemlist;
        inflater = LayoutInflater.from(mContext);
        this.arraylist = new ArrayList();
        this.arraylist.addAll(allFoodItemlist);
    }
    @Override
    public int getCount() {
        return allFoodItemlist.size();
    }

    @Override
    public AllFoodItem getItem(int position) {
        return allFoodItemlist.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    public class Holder {
        TextView foodname, quantity, calorie;    
    }    
    public View getView(final int position, View view, ViewGroup parent) {
        Holder holder = new Holder();
        view = inflater.inflate(R.layout.program_list, null);
        // Locate the TextViews in listview_item.xml
        holder.foodname = (TextView) view.findViewById(R.id.textView1);
         // Set the results into TextViews            holder.foodname.setText(allFoodItemlist.get(position).getName().toString());    
        return view;
    }

    // Filter Class
    public void filter(String charText) {
        charText = charText.toLowerCase(Locale.getDefault());
        allFoodItemlist.clear();
        if (charText.length() == 0) {
            allFoodItemlist.addAll(arraylist);
        } else {
            for (AllFoodItem wp : arraylist) {
                if (wp.getName().toLowerCase(Locale.getDefault()).contains(charText)) {
                    allFoodItemlist.add(wp);
                }
            }
        }
        notifyDataSetChanged();
    }

}

MainActivity.java

use the ListViewAdapter class apply filter on EditText by using filter() method

inputSearch.addTextChangedListener(new TextWatcher() {

            @Override
            public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
                // When user changed the Text
                foodname = (inputSearch.getText().toString()).trim();

                // filter the data of edit Text using filter method in ListViewAdapter
                String text = inputSearch.getText().toString().toLowerCase(Locale.getDefault());
                adapter.filter(text);
            }

            @Override
            public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                                          int arg3) {
                // TODO Auto-generated method stub

            }

            @Override
            public void afterTextChanged(Editable arg0) {

                userGet();
                // TODO Auto-generated method stub
            }
        });