How to add Header in Listview Android?

In this posted I will talking about how to customize Header of ListView in android. I really tired to find more examples today I have solution to customize header of listview. let's start

Create new project in android studio.

and here is my code :
1. Create Custom Header layout

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:background="#4333"    android:orientation="vertical">

    <TextView        android:id="@+id/txtheader_excel_item"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_marginLeft="5dp"        android:layout_marginStart="5dp"        android:paddingTop="5dp"        android:paddingBottom="5dp"        android:text="Function for Math"        android:textAllCaps="false"        android:textColor="@android:color/black"        android:textSize="18sp"        android:textStyle="bold"        tools:layout_editor_absoluteX="101dp"        tools:layout_editor_absoluteY="2dp" />
</LinearLayout>

and next I create One Class call ExcelFragment extends from Fragment

import android.app.SearchManager;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.Toast;

import org.greenrobot.eventbus.EventBus;
import org.greenrobot.eventbus.Subscribe;
import org.greenrobot.eventbus.ThreadMode;

import java.util.ArrayList;
import java.util.List;
import android.widget.Filter;

public class ExcelFragment extends Fragment {

    ListView listView;
    TwoTextArrayAdapter adapter;
    @Override    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        items = new ArrayList <>();
        items.add(new Header("រូបមន្ត គណិតវិត្យា",getContext()));
        items.add(new ListItem("០១- ", "រូបមន្ត កូស៊ីនីស",getActivity()));
        items.add(new ListItem("០២-", "រូបមន្ត កូតង់សង់",getActivity()));
        items.add(new ListItem("០៣-", "រូបមន្ត ស៊ីនីស",getActivity()));
        items.add(new ListItem("០៤-", "រូបមន្ត ត្រីកោណមាត្រ",getActivity()));
        items.add(new Header("រូបមន្ត ស្វីតនព្ធន្ត",getContext()));
        items.add(new ListItem("Text 5", "Rabble rabble",getActivity()));
        items.add(new ListItem("Text 6", "Rabble rabble",getActivity()));
        items.add(new ListItem("Text 7", "Rabble rabble",getActivity()));
        items.add(new ListItem("Text 8", "Rabble rabble",getActivity()));
        items.add(new Header("Header 3",getContext()));
        items.add(new ListItem("Text 9", "Rabble rabble",getActivity()));
        items.add(new ListItem("Text 10", "Rabble rabble",getActivity()));
        items.add(new ListItem("Text 11", "Rabble rabble",getActivity()));
        items.add(new ListItem("Text 12", "Rabble rabble",getActivity()));




    }
//Required Constructor    public ExcelFragment(){}

    @Nullable    @Override    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

        View v = inflater.inflate(R.layout.fragment_excel,container,false);
      //  excelList = new ArrayList <HashMap<String, String>>();        listView =(ListView)v.findViewById(R.id.list_excel_lesson);

        //Set Adapter for list        adapter = new TwoTextArrayAdapter(getActivity(), items);

        listView.setAdapter(adapter);

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override            public void onItemClick(AdapterView <?> adapterView, View view, int position, long l) {
                Intent intent = new Intent(getContext(),SearchResultsActivity.class);
                startActivity(intent);
            }
        });
        return v;
    }


  
    }

Fragment Excel Layout  fragment_excel.xml

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

    <ListView        android:id="@+id/list_excel_lesson"        android:layout_width="match_parent"        android:layout_height="match_parent"        />
</LinearLayout>

Interface Item

import android.view.LayoutInflater;
import android.view.View;

public interface Item {
    public int getViewType();
    public View getView(LayoutInflater inflater, View convertView);
}

Class TwoTextArrayAdapter.java

import android.content.Context;
import android.support.annotation.NonNull;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;

import java.util.List;

public class TwoTextArrayAdapter extends ArrayAdapter<Item> {
    private static final int TYPE_ITEM = 0;
    private static final int TYPE_SEPARATOR = 1;
    private LayoutInflater mlaInflater;
    public enum RowType{
        LIST_ITEM,HEADER_ITEM    }
    public TwoTextArrayAdapter(@NonNull Context context, @NonNull List<Item> objects) {
        super(context, 0, objects);
        mlaInflater = LayoutInflater.from(context);
    }

    @Override    public int getViewTypeCount() {
        return RowType.values().length;

    }

    @Override    public int getItemViewType(int position) {
        return getItem(position).getViewType();
    }

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

        ViewHolder holder = null;
        int rowType = getItemViewType(position);
        View View;
        if (convertView == null) {
            holder = new ViewHolder();
            switch (rowType) {
                case TYPE_ITEM:
                    convertView = mlaInflater.inflate(R.layout.list_ex_item, null);
                    holder.View=getItem(position).getView(mlaInflater, convertView);
                    break;
                case TYPE_SEPARATOR:
                    convertView = mlaInflater.inflate(R.layout.header_excel_item, null);
                    holder.View=getItem(position).getView(mlaInflater, convertView);
                    break;
            }
            convertView.setTag(holder);
        }
        else        {
            holder = (ViewHolder) convertView.getTag();
        }
        return convertView;
        //return getItem(position).getView(mlaInflater, convertView);    }

    public static class ViewHolder {
        public  View View; }

}

In MainActivity.java I create one method to add fragment

private void loadFragment(Fragment fragment) {
    FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
    transaction.replace(R.id.mycontianer, fragment);
    transaction.addToBackStack(null);
    transaction.commit();
}

In onCreate method I add loadFragment to load item by default 

       loadFragment(new ExcelFragment());

activity_main.xml

<FrameLayout    android:id="@+id/mycontianer"    android:layout_width="match_parent"    android:layout_height="0dp"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"    app:layout_constraintBottom_toTopOf="@+id/bottomNavigation"    app:layout_constraintEnd_toEndOf="parent"    app:layout_constraintStart_toStartOf="parent"    app:layout_constraintTop_toBottomOf="@+id/TopNavigation"    tools:ignore="MissingConstraints">


</FrameLayout>

Let's run