Android Programming Tutorials

Life and Times

2. While it is running, click the green phone button on the emulator
   (lower-left corner of the "phone"). This will bring up the call log

activity and, as a result, pause our LunchList activity.

3. After a while, click the BACK button – you should see the LunchList

resuming the background work from the point where it left off.

Here is the full LunchList implementation, including the changes shown

above:

package apt.tutorial;

import android.app.TabActivity;

import android.os.Bundle;

import android.os.SystemClock;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.view.LayoutInflater;

import android.view.Window;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.EditText;

import android.widget.ImageView;

import android.widget.ListView;

import android.widget.RadioGroup;

import android.widget.TabHost;

import android.widget.TextView;

import android.widget.Toast;

import java.util.ArrayList;

import java.util.List;

import java.util.concurrent.atomic.AtomicBoolean;

public class LunchList extends TabActivity {

List<Restaurant> model=new ArrayList<Restaurant>();

RestaurantAdapter adapter=null;

EditText name=null;

EditText address=null;

EditText notes=null;

RadioGroup types=null;

Restaurant current=null;

AtomicBoolean isActive=new AtomicBoolean(true);

int progress= 0 ;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

requestWindowFeature(Window.FEATURE_PROGRESS);

81