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Here is source code of the Program to Demonstrate Prefernce Fragement in Android. The program is successfully compiled and run on a Windows system using Eclipse Ide. The program output is also shown below.

MainActivity.java

package com.example.preferncefragement;
 
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 but = (Button) findViewById(R.id.Launch);
 
        final Intent intent = new Intent(
                "com.example.preferencefragement.PrefActivity");
        but.setOnClickListener(new View.OnClickListener() {
 
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                startActivity(intent);
            }
        });
    }
 
    @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;
    }
 
}

PrefFragement.java

package com.example.preferncefragement;
 
import android.os.Bundle;
import android.preference.PreferenceFragment;
 
public class PrefFragement extends PreferenceFragment{
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
 
        // Load the preferences from an XML resource
        addPreferencesFromResource(R.xml.prefs);
    }
 
}

PrefActivity.java

package com.example.preferncefragement;
 
import android.os.Bundle;
import android.preference.PreferenceActivity;
 
public class PrefActivity extends PreferenceActivity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        getFragmentManager().beginTransaction()
                .replace(android.R.id.content, new PrefFragement()).commit();
    }
 
}

Activity_main.xml

<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" 
    android:background="@android:color/darker_gray">
 
    <Button
        android:id="@+id/Launch"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        android:background="@android:color/white"
        android:text="LAUNCH Preference Activity" />
 
</RelativeLayout>

prefs.xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
    android:title="...." >
 
    <PreferenceCategory
        android:summary="Preference Category Screen 1"
        android:title="Your Title Goes here" >
        <EditTextPreference
            android:key="Edit Text"
            android:summary="This is an Edit Text"
            android:title="Edit Text" />
        <EditTextPreference
            android:key="Edit Text2"
            android:summary="Another Edit Text"
            android:title="Edit Text" />
    </PreferenceCategory>
    <PreferenceCategory
        android:summary="Preference Category Screen 2"
        android:title="Your Title Goes here" >
        <CheckBoxPreference
            android:key="checkBox"
            android:summary="A check box "
            android:title="Keep me logged in" />
 
        <ListPreference
            android:entries="@array/array1"
            android:entryValues="@array/array2"
            android:key="listpref"
            android:summary="List preference example"
            android:title="List preference" />
    </PreferenceCategory>
 
</PreferenceScreen>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.preferncefragement"
    android:versionCode="1"
    android:versionName="1.0" >
 
    <uses-sdk
        android:minSdkVersion="11"
        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.preferncefragement.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.preferencefragement.PrefActivity"
            android:theme="@android:style/Theme.Black.NoTitleBar" >
            <intent-filter>
                <action android:name="com.example.preferencefragement.PrefActivity" />
 
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
    </application>
 
</manifest>

Java Android Program to Demonstrate Prefernce Fragement