public class search extends AppCompatActivity {


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



      }

     public void onClick(View v) {
         switch (v.getId()){
            case R.id.imageButton2: new StoreUserDataAsyncTask().execute();
                break;
             }


     }






        @Override
    public boolean onCreateOptionsMenu(Menu menu) {
         // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_searchh, menu);
       return true;
      }


       @Override
        public boolean onOptionsItemSelected(MenuItem item) {
       // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
           int id = item.getItemId();

    //noinspection SimplifiableIfStatement
          if (id == R.id.action_settings) {
            return true;
             }

          return super.onOptionsItemSelected(item);
      }


      ArrayList<User> userlist1=null;

      public class StoreUserDataAsyncTask extends AsyncTask<Void, Void,         ArrayList<User>> {
         User user;
         GetUserCallback userCallback;




         ProgressDialog progressDialog;
         Spinner s11 = (Spinner) findViewById(R.id.spinner);
        Spinner s2 = (Spinner) findViewById(R.id.spinner2);
        String bloodd = s11.getSelectedItem().toString();
        String loc = s2.getSelectedItem().toString();




          protected ArrayList<User> doInBackground(Void... params) {

           User returnedUser=null;
             ArrayList<User> userlist=null;
              final int CONNECTION_TIMEOUT = 1000 * 15;
           final String SERVER_ADDRESS = "http://xxxxx.comli.com/";
            ArrayList<NameValuePair> dataToSend = new ArrayList<>();
            dataToSend.add(new BasicNameValuePair("bloodtype", bloodd));
            dataToSend.add(new BasicNameValuePair("location", loc));

            HttpParams httpRequestParams = new BasicHttpParams();
            HttpConnectionParams.setConnectionTimeout(httpRequestParams, CONNECTION_TIMEOUT);
             HttpConnectionParams.setSoTimeout(httpRequestParams, CONNECTION_TIMEOUT);

             HttpClient client = new DefaultHttpClient(httpRequestParams);
             HttpPost post = new HttpPost(SERVER_ADDRESS + "/Search.php");

             try {
                 post.setEntity(new UrlEncodedFormEntity(dataToSend));
                 HttpResponse httpResponse = client.execute(post);

                HttpEntity entity = httpResponse.getEntity();
                String result = EntityUtils.toString(entity);
                JSONObject jObject = new JSONObject(result);

                if (jObject.length() == 0) {
                    userlist = null;
                    Context context = getApplicationContext();
                     CharSequence text = "no available donor!";
                     int duration = Toast.LENGTH_SHORT;



                 } else {

                     String resultt = EntityUtils.toString(entity);
                      JSONArray jsonArray = new JSONArray(resultt);
                      for (int i = 0; i < jsonArray.length(); i++) {
                       JSONObject jsonObject = jsonArray.getJSONObject(i);

                     String fname = jsonObject.getString("firstname");
                     String lname = jsonObject.getString("lastname");
                     String blood = jsonObject.getString("blood");
                     String location = jsonObject.getString("location");
                      String email = jsonObject.getString("email");
                     String age = jsonObject.getString("age");
                     String password = jsonObject.getString("password");
                      String phone = jsonObject.getString("phone");
                     int agee = Integer.parseInt(age);
                     int phonee = Integer.parseInt(phone);


                      returnedUser = new User(fname, lname, blood, location, email, password, agee, phonee);
                        userlist.add(returnedUser);



                  }



                }


             } catch (Exception e) {
                e.printStackTrace();
            }
            userlist1=userlist;
            return userlist;}


         protected void onPostExecute(ArrayList<User> aVoid) {
            progressDialog.dismiss();
            displayCountryList();

        }


     }

      private void displayCountryList(){

          MyCustomAdapter dataAdapter = null;

          try {


              //create an ArrayAdaptar from the String Array
              dataAdapter = new MyCustomAdapter(this,
                R.layout.listv, userlist1);
             ListView listView = (ListView) findViewById(R.id.listView);
        // Assign adapter to ListView
              listView.setAdapter(dataAdapter);

        //enables filtering for the contents of the given ListView
              listView.setTextFilterEnabled(true);


         }
         catch (Exception e) {
             e.printStackTrace();
         }
     }




       class MyCustomAdapter extends ArrayAdapter<User> {

          private ArrayList<User> userlist;

         public MyCustomAdapter(Context context, int textViewResourceId,
                           ArrayList<User> userlist) {
            super(context, textViewResourceId, userlist);
            this.userlist = new ArrayList<User>();
            this.userlist.addAll(userlist);
          }

         private class ViewHolder {

           TextView name;
           TextView phone;
            TextView email;
         }


         @Override
          public View getView(int position, View convertView, ViewGroup parent) {

             ViewHolder holder = null;
             Log.v("ConvertView", String.valueOf(position));
             if (convertView == null) {

                 LayoutInflater vi = (LayoutInflater)getSystemService(
                        Context.LAYOUT_INFLATER_SERVICE);
                 convertView = vi.inflate(R.layout.listv, null);

                 holder = new ViewHolder();
                 holder.name = (TextView) convertView.findViewById(R.id.textView31);
                 holder.phone = (TextView) convertView.findViewById(R.id.textView33);
                 holder.email = (TextView) convertView.findViewById(R.id.textView34);


                 convertView.setTag(holder);

            } else {
                holder = (ViewHolder) convertView.getTag();
             }

             User user = userlist.get(position);
            holder.name.setText(user.getFirstname());
            holder.phone.setText(user.getPhone());
            holder.email.setText(user.getEmail());


             return convertView;

        }



     }}