=============================================== AndroidManifest.xml ====
      <receiver
             android:icon="@drawable/icon"
       		 android:label="Example Widget"
             android:name="WidgetProvider" >
            <intent-filter >
                <action 
                    android:name="android.appwidget.action.APPWIDGET_UPDATE" />
            </intent-filter>

            <meta-data
                android:name="android.appwidget.provider"
                android:resource="@xml/widget_info" />
        </receiver>
        
============================================= res/xml/widget_info.xml ==
<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android" android:initialLayout="@layout/widget_layout" android:minWidth="280dp" android:minHeight="72dp" android:updatePeriodMillis="180000">
    

</appwidget-provider>

<<<<<<<<<<<<<<<<<<<<<<<< NOTE >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
 A Widget will take a certain amount of cells on the homescreen. A cell is usually used to display the icon of one application. As a calculation rule you should define the size of the widget with the formula: ((Number of columns / rows)* 74) - 2. These are device independent pixels and the -2 is used to avoid rounding issues.

As of Android 3.1 a Widgets can be flexible in size, e.g. the user can make it larger or smaller. To enable this for Widgets you can use the android:resizeMode="horizontal|vertical" attribute in the XML configuration file for the widget. 

=============================================== WidgetProvider.java ====
package info.pathseeker.pishgaman;
//http://www.vogella.com/articles/AndroidWidgets/article.html
import java.util.Random;

import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.RemoteViews;
import android.widget.TextView;

public class WidgetProvider extends AppWidgetProvider {

  private static final String ACTION_CLICK = "ACTION_CLICK";

  @Override
  public void onUpdate(Context context, AppWidgetManager appWidgetManager,
      int[] appWidgetIds) {

	  
 		SharedPreferences preferences;
 		preferences = context.getSharedPreferences("info.pathseeker.Pishgaman", Context.MODE_PRIVATE);
		String fullname = preferences.getString("fullname", "n/a");
		String current_service = preferences.getString("current_service", "n/a");
		String credit = preferences.getString("credit", "n/a");
		String deposit = preferences.getString("deposit", "n/a");
		String status = preferences.getString("status", "n/a");
		String jexpire = preferences.getString("jexpire", "n/a");
		String gexpire = preferences.getString("gexpire", "n/a");

 	    
    // Get all ids
    ComponentName thisWidget = new ComponentName(context,
        WidgetProvider.class);
    int[] allWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);
    for (int widgetId : allWidgetIds) {
      // create some random data

      RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
          R.layout.widget_layout);
      Log.w("WidgetExample", fullname);

	
      remoteViews.setTextViewText(R.id.fullname_widget, String.valueOf(fullname));
      remoteViews.setTextViewText(R.id.credit_widget, String.valueOf(credit));
      remoteViews.setTextViewText(R.id.deposit_widget, String.valueOf(deposit));
      remoteViews.setTextViewText(R.id.status_widget, String.valueOf(status));
      
      
//		LayoutInflater inflater = (LayoutInflater) context.getSystemService( Context.LAYOUT_INFLATER_SERVICE );
//		View view = inflater.inflate( R.layout.widget_layout, null );
//      
//	    TextView fullname_TextView = (TextView)view.findViewById(R.id.fullname_widget);
//	    fullname_TextView.setText(fullname); 
//   	    TextView credit_TextView = (TextView)view.findViewById(R.id.credit_widget);
//   	    credit_TextView.setText(credit);
//   	    TextView deposit_TextView = (TextView)view.findViewById(R.id.deposit_widget);
//   	    deposit_TextView.setText(deposit);
//   	    TextView status_TextView = (TextView)view.findViewById(R.id.status_widget);
//   	    status_TextView.setText(status);
   	    
      // Register an onClickListener
      Intent intent = new Intent(context, WidgetProvider.class);

      intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
      intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds);

      PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
          0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
      remoteViews.setOnClickPendingIntent(R.id.fullname, pendingIntent);
      appWidgetManager.updateAppWidget(widgetId, remoteViews);
    }
  }
} 




=============================================== widget_layout.xml=======
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/layout"
    android:layout_width="match_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/myshape"
    android:orientation="vertical" 
    >
    
   	<TextView
        android:id="@+id/fullname_label"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/fullname"
        android:textAppearance="?android:attr/textAppearanceLarge"
        
         />

    <TextView
        android:id="@+id/fullname_widget"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" 
        
        />
    

    <TextView
        android:id="@+id/credit_label"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/credit"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TextView
        android:id="@+id/credit_widget"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />  

    <TextView
        android:id="@+id/deposit_label"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/deposit"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TextView
        android:id="@+id/deposit_widget"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        
         />  
   

    <TextView
        android:id="@+id/status_label"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/status"
        android:textAppearance="?android:attr/textAppearanceLarge" 
        
        />

    <TextView
        android:id="@+id/status_widget"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />  
</LinearLayout> 



========================================================== Widget updates

A Widget gets its data on a periodic timetable. There are two methods to update a widget, one is based on an XML configuration file and the other is based on the Android AlarmManager service.

In the widget configuration file you can specify a fixed update interval. The system will wake up after this time interval and call your broadcast receiver to update the widget. The smallest update interval is 1800000 milliseconds (30 minutes).

The AlarmManager allows you to be more resource efficient and to have a higher frequency of updates. To use this approach you define a service and schedule this service via the AlarmManager regularly. This service updates the widget.

Please note that a higher update frequency will wake up the phone from the energy safe mode. As a result your widget consumes more energy.