Autosearching option using filter method in recyclerview

Question

In my app I have implemented a recyclerview with cardview to show the list of the employee inside a company. Now I want to implement a serch option by which user can search with

Answer 1

IMO you missed setNotifyDatachaged() in onPostExecute() try above code

    public class MyColleaguesPage extends AppCompatActivity{

private RecyclerView recyclerView;
private MyColleaguesAdapter adapter;
private List colleagueObject;
InputStream is;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.mycolleagues_layout);

    // Showing and Enabling clicks on the Home/Up button
    if (getSupportActionBar() != null) {
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);
    }

    recyclerView = (RecyclerView) findViewById(R.id.colleagues_recycler);
    recyclerView.setHasFixedSize(true);
    RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(MyColleaguesPage.this);
    recyclerView.setLayoutManager(layoutManager);

     adapter = new MyColleaguesAdapter(colleagueObject, getApplicationContext());
            recyclerView.setAdapter(adapter);
    new JSONTask().execute();

}



public class JSONTask extends AsyncTask> {
    @Override
    protected void onPreExecute() {
        super.onPreExecute();
    }

    @Override
    protected List doInBackground(String... params) {

        colleagueObject = new ArrayList();

        try {
            //withou Gson
            JSONObject obj = new JSONObject(loadJSONFromAsset());
            JSONArray m_jArry = obj.getJSONArray("contacts");
            // ArrayList> formList = new ArrayList>();
           // HashMap m_li;

            MyColleageModel my_clg;

            for (int i = 0; i < m_jArry.length(); i++) {
                JSONObject jo_inside = m_jArry.getJSONObject(i);
                //my_clg=new MyColleageModel();
                String val1 = jo_inside.getString("mobile");
                String val2 = jo_inside.getString("mail");
                String val3 = jo_inside.getString("name");
                String val4 = jo_inside.optString("company");
                String val5 = jo_inside.optString("department");
                String val6 = jo_inside.optString("title");
                my_clg = new MyColleageModel(val1, val2, val3, val4, val5, val6);

                colleagueObject.add(my_clg);
            }



        } catch (JSONException e) {
            e.printStackTrace();
        }
        return null;
    }


    @Override
    protected void onPostExecute(final List result) {
        super.onPostExecute(result);

            adapter.notifyDataSetChanged();
       }
   }

 private String loadJSONFromAsset() {
    ...........
 }
@Override
public boolean onCreateOptionsMenu(Menu menu) {

    getMenuInflater().inflate(R.menu.recyclerviewmenu, menu);

    MenuItem search = menu.findItem(R.id.search);
    SearchView searchView = (SearchView) MenuItemCompat.getActionView(search);
    search(searchView);
    return true;
}

private void search(SearchView searchView) {
    searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
        @Override
        public boolean onQueryTextSubmit(String query) {
            return false;
        }

        @Override
        public boolean onQueryTextChange(String newText) {

            adapter.getFilter().filter(newText);
            return true;
        }
    });
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();

    if (id == android.R.id.home) {
        finish();
    }

    return super.onOptionsItemSelected(item);
}