Custom Listview Android

MainActivity.java

package com.example.test;

import java.util.ArrayList;

import android.app.Activity;

import android.content.Context;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends Activity {

ListView listview;

UsersAdapter adapter;

ArrayList<User> dataSource = new ArrayList<User>();

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

createDataSource();

listview=(ListView)  findViewById(R.id.listview);

adapter = new UsersAdapter(this, dataSource);

listview.setAdapter(adapter);

listview.setOnItemClickListener(new OnItemClickListener() {

@Override

public void onItemClick(AdapterView<?> parent, View view, int position,long id) {

      User user=adapter.getItem(position);

      Toast.makeText(getBaseContext(), user.name, Toast.LENGTH_LONG).show();

                

            }

        });

}

private void createDataSource() {

User user=new User();

user.setName("Raju");

user.setAge("26");

dataSource.add(user);

user=new User();

user.setName("Rozy");

user.setAge("22");

dataSource.add(user);

user=new User();

user.setName("Meera");

user.setAge("32");

dataSource.add(user);

user=new User();

user.setName("Bibhu");

user.setAge("34");

dataSource.add(user);

user=new User();

user.setName("Prakash");

user.setAge("24");

dataSource.add(user);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar,if it is present.

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

return true;

}

public class UsersAdapter extends ArrayAdapter<User> {

// View lookup cache

private  class ViewHolder {

TextView tvName;

TextView tvAge;

}

public UsersAdapter(Context context, ArrayList<User> users) {

super(context, R.layout.item_user, users);

}

@Override

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

// Get the data item for this position

User user = getItem(position);    

// Check if an existing view is being reused, otherwise inflate the view

ViewHolder viewHolder; // view lookup cache stored in tag

if (convertView == null) {

viewHolder = new ViewHolder();

LayoutInflater inflater = LayoutInflater.from(getContext());

convertView = inflater.inflate(R.layout.item_user, parent, false);

viewHolder.tvName = (TextView) convertView.findViewById(R.id.tvName);

viewHolder.tvAge = (TextView) convertView.findViewById(R.id.tvAge);

convertView.setTag(viewHolder);

} else {

viewHolder = (ViewHolder) convertView.getTag();

}

// Populate the data into the template view using the data object

viewHolder.tvName.setText(user.name);

viewHolder.tvAge.setText(user.age);

// Return the completed view to render on screen

return convertView;

}

}

}

main.xml

<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="match_parent"

    android:orientation="vertical" >

    <ListView

        android:id="@+id/listview"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:background="#E09090" />

</LinearLayout>

item_user.xml

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

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <TextView

        android:id="@+id/tvName"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_margin="10dp"

        android:text="Name"

        android:textSize="20sp"

        android:textStyle="bold" />

    <TextView

        android:id="@+id/tvAge"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_margin="10dp"

        android:text="23"

        android:textSize="18sp" />

</LinearLayout>

User.java

package com.example.test;

public class User {

String name,age;

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getAge() {

return age;

}

public void setAge(String age) {

this.age = age;

}

}