Android Program to Demonstrate List View Activity

  Android Program to Demonstrate List View Activity:

In this Article Today learn Android Program to Demonstrate List View Activity:

This Android Java Program lets you create a ListView Activity.

1.Main Activity.java:

import android.os.Bundle;

import android.app.Activity;

import android.content.Intent;

import android.view.Menu;

import android.view.View;

import android.widget.Button;

 

public class MainActivity extends Activity {

 

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        Button button = (Button)findViewById(R.id.button1);

        button.setOnClickListener(new View.OnClickListener() {

 

            @Override

            public void onClick(View v) {

                // TODO Auto-generated method stub

                startActivity(new Intent("com.example.creating_listview.list"));    

            }

        });

    }

 

    @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;

    }

 

    @Override

    protected void onPause() {

        // TODO Auto-generated method stub

        super.onPause();

        finish();

    }

 

}

2.List.java:

import android.app.ListActivity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.widget.ArrayAdapter;

import android.widget.ListView;

 

public class list extends ListActivity {

 

    String list_item[] = { "MainActivity", "FirstActivity", "SecondActivity" };

 

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        // TODO Auto-generated method stub

        super.onCreate(savedInstanceState);

        setListAdapter(new ArrayAdapter<String>(this,

                android.R.layout.simple_expandable_list_item_1, list_item));

    }

 

    @Override

    protected void onListItemClick(ListView l, View v, int position, long id) {

        // TODO Auto-generated method stub

        super.onListItemClick(l, v, position, id);

        String open_class = list_item[position];

        try{

          Class selected = Class.forName("com.example.creating_listview."+open_class);

          Intent selected_activity = new Intent(this,selected);

          startActivity(selected_activity);

        } catch (ClassNotFoundException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        finally{

 

        }

 

    }

}