Store and retrive the values using Shared Preferences and display in ListView using Android

Hi 

This  is an example for store and retrive the shared prefernces and display in listview


MainActivity.java

package com.example.sample;

import android.os.Bundle;
import android.preference.PreferenceManager;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity {
SharedPreferences.Editor fd;
SharedPreferences FeedPref;
EditText  txt1;
EditText txt2;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txt1=(EditText)findViewById(R.id.editText1);
    txt2=(EditText)findViewById(R.id.editText2);

Button submit=(Button)findViewById(R.id.button1);
 FeedPref=PreferenceManager.getDefaultSharedPreferences(getBaseContext());
       fd=FeedPref.edit();        

submit.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {

txt1=(EditText)findViewById(R.id.editText1);
    txt2=(EditText)findViewById(R.id.editText2);

  FeedPref=PreferenceManager.getDefaultSharedPreferences(getBaseContext());
     fd=FeedPref.edit();
 String u_name=txt1.getText().toString();
 String pwdtxt=txt2.getText().toString();
 fd.putString("uname", u_name);
 fd.putString("pwd",pwdtxt);
 fd.commit();
  Intent sample2=new Intent(MainActivity.this,sharedlist.class);
  startActivity(sample2);

}
});

}


}


Sharedlist.java:

package com.example.sample;
import java.util.Map;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.app.Activity;
import android.app.ListActivity;
import android.content.SharedPreferences;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;

public class sharedlist extends Activity {
String[] presidents;
ListView listView;
ArrayAdapter<String> adapter;
SharedPreferences FeedPref;
SharedPreferences.Editor fd;
TextView txt1,txt2;

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

        listView = (ListView) findViewById(R.id.list);
     
 FeedPref=PreferenceManager.getDefaultSharedPreferences(getBaseContext());
      String  uname=FeedPref.getString("uname",null);
        String  password=FeedPref.getString("pwd", null);
        String[] values = new String[] {uname,password};
          ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, android.R.id.text1, values);



listView.setAdapter(adapter);

}
}

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" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="34dp"
        android:layout_marginTop="122dp"
        android:text="@string/username" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignRight="@+id/textView1"
        android:layout_below="@+id/textView1"
        android:layout_marginTop="30dp"
        android:text="@string/password" />

    <EditText
        android:id="@+id/editText1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/textView2"
        android:layout_toRightOf="@+id/textView1"
        android:ems="10"
        android:hint="enter the username" >

        <requestFocus />
    </EditText>

    <EditText
        android:id="@+id/editText2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView2"
        android:layout_alignBottom="@+id/textView2"
        android:layout_alignLeft="@+id/editText1"
        android:ems="10" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView2"
        android:layout_below="@+id/editText2"
        android:layout_marginLeft="40dp"
        android:layout_marginTop="24dp"
        android:text="@string/submit"/>

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/button1"
        android:layout_alignBottom="@+id/button1"
        android:layout_marginLeft="22dp"
        android:layout_toRightOf="@+id/button1"
        android:text="@string/cancel" />

</RelativeLayout>

second.xml:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

         <ListView
              android:id="@+id/list"
              android:layout_height="wrap_content"
              android:layout_width="match_parent">
         </ListView>


</LinearLayout>