Android ListView With Custom Adapter Search Not Working

I am trying to apply search on ndroid ListView but its not working for me, here is the code i have tried. final ArrayList uData = new ArrayList(); listVi

Solution 1:

The Adapter you are using not works with Filter. It only works with ArrayAdapter. So either you use ArrayAdapter or write your own code for filteration of data.

Solution 2:

You may follow below step:
1) Implements your Base adapter class with filterable class
2) You will get overriden method "public Filter getFilter()" you can use below code for filtering data

mListe is the original ArrayList<ContactsPojo>
mListSearch is the filtered ArrayList<ContactsPojo>

@Override
    public Filter getFilter() {
        Filter filter = new Filter() {

            @SuppressWarnings("null")
            @SuppressLint("DefaultLocale")
            @Override
            protected FilterResults performFiltering(CharSequence constraint) {
                FilterResults result = new FilterResults();

                if (constraint != null && constraint.length() > 0) {
                    synchronized (this) {
                        mListSearch = new ArrayList<ContactsPojo>();
                        for (int i = 0; i < mListe.size(); i++) {
                            if ((mListe.get(i).getContactsName().toUpperCase())
                                    .contains(constraint.toString()
                                            .toUpperCase())) {

                                ContactsPojo contacts = new ContactsPojo();
                                contacts.setContactsName(mListe.get(i)
                                        .getContactsName());
                                contacts.setImage(mListe.get(i).getImage());
                                mListSearch.add(contacts);
                            }
                        }

                    }

                    result.count = mListSearch.size();
                    result.values = mListSearch;
                } else if (constraint == null && constraint.length() == 0) {

                    synchronized (this) {
                        result.count = mListe.size();
                        result.values = mListe;

                    }

                }

                return result;
            }

            @SuppressWarnings("unchecked")
            @Override
            protected void publishResults(CharSequence constraint,
                    FilterResults result) {
                if (result.count == 0) {
//                  mListe = (ArrayList<ContactsPojo>) mListe;
                    notifyDataSetInvalidated();
                } else {
                    mListe = (ArrayList<ContactsPojo>) result.values;
                    notifyDataSetChanged();
                }
            }

        };

        return filter;
    }


3) Then you can add this filter to edittext 
     edtSearchContacts.addTextChangedListener(new TextWatcher() {

            @Override
            public void onTextChanged(CharSequence s, int start, int before,
                    int count) {
                mlistAdapter.getFilter().filter(s);
                mlistAdapter.notifyDataSetChanged();
            }

            @Override
            public void beforeTextChanged(CharSequence s, int start, int count,
                    int after) {

            }

            @SuppressLint("NewApi")
            @Override
            public void afterTextChanged(Editable s) {
                if (s.toString().isEmpty()) {
                    mlistAdapter = new MyListAdapterTwoLine(_con, al3);
                    lvPhnContacts.setAdapter(mlistAdapter);

                }
            }
        });
    }

In afterTextChanged method you will get original items back to listview.

Solution 3:

You can't convert BaseAdapter to Filterable. Beacause BaseAdapter not implemented Filterable. Try using SimpleAdapter.