Is there a way of opening each searchable listview item in a dial pad?

Question

im new to android development and i have managed to develop an application with a listview of name, phone number and district, which is searchable and it is working really well. im using positions to click and take me to the dial pad, but the problem is, if an item is searched, it does not mantain its position given to it initially. what i want when a user searches for a name or district, it opens in the dial pad with a number written there. Here is my contacts.java

public class Contacts extends AppCompatActivity {
    ListView listView;
    String[] name = {"Achibu john peter - Serere - 0772698033", "Agaba - Amon - Rukiga - 
     0782090694\n", "Agaja joseph - kaberamaido - 0775004193/0752451894\n",}
     ArrayAdapter<String> arrayAdapter;

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

        Toolbar toolbar = findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        getSupportActionBar().setTitle("DFO Contacts");
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        listView = findViewById(R.id.listview);


        arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, name);
        listView.setAdapter(arrayAdapter);

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
                if (position == 0){
                    Intent intent = new Intent(Intent.ACTION_DIAL);
                      intent.setData(Uri.parse("tel: +256772698033"));
                      startActivity(intent);
                }
            }
        });


    }



    @Override
    public boolean onCreateOptionsMenu(Menu menu){
        getMenuInflater().inflate(R.menu.menu, menu);
        MenuItem menuItem = menu.findItem(R.id.action_search);

        SearchView searchView = (SearchView) menuItem.getActionView();
        searchView.setQueryHint("Search for your DFO");

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

            @Override
            public boolean onQueryTextChange(String newText) {
                arrayAdapter.getFilter().filter(newText);
                return false;
            }
        });
        return super.onCreateOptionsMenu(menu);
            

and menu.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <item
        android:id="@+id/search_view"
        android:title="Search"
        app:showAsAction="always"
        android:icon="@drawable/ic_search"
        app:actionViewClass="android.widget.SearchView"

        />
</menu>

And the activity_contacts

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".Contacts">



    <androidx.appcompat.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#D4AC0D"
        app:subtitleTextColor="#0A0A0A"
        app:titleTextColor="#111111"
         />

    <ListView
        android:id="@+id/listview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fontFamily="@font/poppinsmedium"
        android:textSize="20sp"
        android:layout_marginLeft="15dp"
        android:clickable="true"
        />


</LinearLayout>

Answer 1

You need to use custom Array Adapter with custom Layout with a TextView and add OnClickListener for each TextView.

I've changed your code to make it work.

contacts.java

import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ListView;
import android.widget.SearchView;
import androidx.appcompat.app.AppCompatActivity;
import java.util.ArrayList;
import java.util.List;

public class Contacts extends AppCompatActivity {

    ListView listView;
    List<String> name;
    CustomAdapter arrayAdapter;

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

        // Set Toolbar & title
        if (getSupportActionBar() != null) {
            getSupportActionBar().setTitle("DFO Contacts");
            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        }

        listView = findViewById(R.id.listview);

        // Creating List<String> from valus
        name = new ArrayList<>();
        name.add("Achibu john peter - Serere - 0772698033");
        name.add("Agaba - Amon - Rukiga - 0782090694");
        name.add("Agaja joseph - kaberamaido - 0775004193");
        arrayAdapter = new CustomAdapter(name, this);
        listView.setAdapter(arrayAdapter);
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu, menu);
        MenuItem menuItem = menu.findItem(R.id.search_view);

        SearchView searchView = (SearchView) menuItem.getActionView();
        searchView.setQueryHint("Search for your DFO");

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

            @Override
            public boolean onQueryTextChange(String newText) {
                arrayAdapter.getFilter().filter(newText);
                return false;
            }
        });
        return super.onCreateOptionsMenu(menu);

    }
}

CustomAdapter.java

import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Filter;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import java.util.ArrayList;
import java.util.List;

public class CustomAdapter  extends ArrayAdapter<String> {

    private final LayoutInflater mInflater;
    private final int mResource;
    private Context mContext;
    private List<String> orig;
    private List<String> dataSet;
    private int selectedPosition;

    public CustomAdapter(List<String> data, Context context) {
        super(context, android.R.layout.simple_list_item_1, data);

        mContext = context;

        // We need to make backup of original list

        dataSet = data;
        orig = data;

        // Store for later use

        mInflater = LayoutInflater.from(context);
        mResource = android.R.layout.simple_list_item_1;

    }


    @Override
    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
        return createItemView(position, convertView, parent);
    }

    private View createItemView(int position, View convertView, ViewGroup parent) {
        ViewHolder viewHolder;

        if (convertView == null) {

            viewHolder = new ViewHolder();
            convertView = mInflater.inflate(mResource, parent, false);
            viewHolder.txtName = convertView.findViewById(android.R.id.text1);
            convertView.setTag(viewHolder);

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

        String item = getItem(position);
        viewHolder.txtName.setText(item);

        // Here we will try to extract phone number from current item
        // it looks like    xxxxx - xxxxx - 1234567890
        // or like          xxxxx - xxxxx -xxxxxx - 1234567890
        // we need to extract 1234567890 here
        // we will split by "-" & last one in array will be the phone number
        // you may try another way to get so

        String[] s = item.split("-");
        String p = s[s.length-1].trim();    // Extracted Phone Number

        viewHolder.txtName.setOnClickListener(view -> {
            Intent intent = new Intent(Intent.ACTION_DIAL);
            intent.setData(Uri.parse("tel: " + p));
            mContext.startActivity(intent);
        });

        return convertView;
    }


    // View lookup cache
    private static class ViewHolder {
        TextView txtName;
    }

    public Filter getFilter() {
        return new Filter() {

            @Override
            protected FilterResults performFiltering(CharSequence constraint) {
                final FilterResults oReturn = new FilterResults();
                final ArrayList<String> results = new ArrayList<String>();
                if (orig == null)
                    orig = dataSet;
                if (constraint != null) {
                    if (orig != null && orig.size() > 0) {
                        for (final String g : orig) {
                            if (g.toLowerCase()
                                    .contains(constraint.toString()))
                                results.add(g);
                        }
                    }
                    oReturn.values = results;
                }
                return oReturn;
            }

            @SuppressWarnings("unchecked")
            @Override
            protected void publishResults(CharSequence constraint,
                                          FilterResults results) {
                dataSet = (List<String>) results.values;
                notifyDataSetChanged();
            }
        };
    }

    @Override
    public int getCount() {
        return dataSet.size();
    }

    @Override
    public String getItem(int position) {
        return dataSet.get(position);
    }

}

menu.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <item
        android:id="@+id/search_view"
        android:icon="?android:attr/actionModeWebSearchDrawable"
        android:title="Search"
        app:actionViewClass="android.widget.SearchView"
        app:showAsAction="always" />
</menu>

and activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <ListView
        android:id="@+id/listview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginStart="15dp"
        android:clickable="true"
        android:textSize="20sp"
        tools:listitem="@android:layout/simple_list_item_1"
        android:focusable="true" />

</LinearLayout>

Hope it will help.