Java Android Program to Demonstrate List View Activity

This Android Java Program lets you create a List View Activity.

Here is source code of the Program to create a List View Activity. The program is successfully compiled and run on a Windows system using Eclipse Ide. The program output is also shown below.

Main Activity


package com.example.creating_listview;

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();
}

}
List


package com.example.creating_listview;

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(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{

}

}
}
FirstActivity


package com.example.creating_listview;

import android.app.Activity;
import android.os.Bundle;

public class FirstActivity extends Activity{

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.first);
}

}
SecondActivity

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package com.example.creating_listview;

import android.app.Activity;
import android.os.Bundle;

public class SecondActivity extends Activity{

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
}

}

Xml

Main


<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

<TextView
android:id="@+id/textView1"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:text="A List View Activity"
android:layout_marginTop="100dp"
android:gravity="center_vertical|center_horizontal"
android:textSize="30dp" />

<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView1"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_marginBottom="88dp"
android:text="Launch List View Activity" />

</RelativeLayout>

First

<?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"
android:background="@android:color/black">

<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="50dp"
android:layout_marginTop="60dp"
android:gravity="center"
android:text="First Activity"
android:layout_marginRight="40dp"
android:textColor="@android:color/holo_blue_dark"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textSize="60dp" />

</LinearLayout>

Second


<?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"
android:background="@android:color/black">

<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="50dp"
android:layout_marginTop="60dp"
android:gravity="center"
android:text="Second Activity"
android:layout_marginRight="40dp"
android:textColor="@android:color/holo_blue_dark"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textSize="60dp" />

</LinearLayout>

AndroidManifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.creating_listview"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.creating_listview.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.creating_listview.list"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.creating_listview.list" />

<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name="com.example.creating_listview.FirstActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.creating_listview.FirstActivity" />

<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name="com.example.creating_listview.SecondActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.creating_listview.SecondActivity" />

<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>

</application>

</manifest>