How To Pass List Object and Display in Custom Listview

1. activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    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:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="195dp"
        android:layout_marginTop="207dp"
        android:layout_marginEnd="128dp"
        android:text="Submit"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

2. MainActivity.java

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {
    private Button btn_submit;

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

        btn_submit = (Button)findViewById(R.id.button);
        btn_submit.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                List<StudentObj>objList = new ArrayList<>();
                StudentObj obj = new StudentObj("StudentA");
                StudentObj objb = new StudentObj("StudentB");
                objList.add(obj);
                objList.add(objb);
                Intent intent = new Intent(MainActivity.this, SecondActivity.class);
                intent.putExtra("objList", (Serializable) objList);
                startActivity(intent);
            }
        });
    }
}

3. SecondActivity.java

package com.example.myapplication;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Adapter;
import android.widget.Button;
import android.widget.ListView;

import androidx.appcompat.app.AppCompatActivity;

import java.util.ArrayList;
import java.util.List;

public class SecondActivity extends AppCompatActivity {

    private List<StudentObj> objList;
    private ListView list;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);

        Intent intent = getIntent();
        objList = (List<StudentObj>)intent.getSerializableExtra("objList");
        list = (ListView)findViewById(R.id.list);
        CustomListAdapter adapter = new CustomListAdapter(this, objList);
        list.setAdapter(adapter);

    }
}

4. CustomListAdapter.java

package com.example.myapplication;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

import java.util.List;

public class CustomListAdapter extends ArrayAdapter {
    List<StudentObj>result;
    Context context;
    public CustomListAdapter(Context context,List<StudentObj>result) {
        super(context, 0, result);
        this.context = context;
        this.result = result;
    }

    @NonNull
    @Override
    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
        ViewHolder holder=new ViewHolder();

        if(convertView == null){
            LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.list_second, parent, false);
            holder.tv = (TextView)convertView.findViewById(R.id.textView);
            convertView.setTag(holder);
        }else{
            holder = (ViewHolder)convertView.getTag();
        }

        holder.tv.setText(result.get(position).getName());
        return convertView;
    }

    static class ViewHolder{
        TextView tv;
    }
}

5. StudentObj.java

package com.example.myapplication;

import java.io.Serializable;

public class StudentObj implements Serializable {

    private String name;

    public StudentObj(String name){

        this.name = name;

    }

    public String getName(){

        return name;

    }

    public void setName(String name){

        this.name = name;

    }

}

6. list_second.xml

<?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.widget.ConstraintLayout

    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">

    <TextView

        android:id="@+id/textView"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_marginStart="66dp"

        android:layout_marginTop="59dp"

        android:layout_marginEnd="287dp"

        android:text="TextView"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toStartOf="parent"

        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

7. Activity_second.xml

<?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.widget.ConstraintLayout

    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:id="@+id/drawer_layout"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    >

    <ListView

        android:id="@+id/list"

        android:layout_width="409dp"

        android:layout_height="729dp"

        android:layout_marginStart="1dp"

        android:layout_marginTop="1dp"

        android:layout_marginEnd="1dp"

        android:layout_marginBottom="1dp"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toStartOf="parent"

        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

8. Manifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.myapplication">

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <activity android:name=".SecondActivity"/>

    </application>

</manifest>