package com.websmithing.broadcasttest;

import java.util.Date;

import android.app.Service;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.util.Log;

public class BroadcastService  extends Service {
	private static final String TAG = "BroadcastService";
	public static final String BROADCAST_ACTION = "com.websmithing.broadcasttest.displayevent";
	private final Handler handler = new Handler();
	Intent intent;
	int counter = 0;
	
	@Override
	public void onCreate() {
		super.onCreate();

    	intent = new Intent(BROADCAST_ACTION);	
	}
	
    @Override
    public void onStart(Intent intent, int startId) {
        handler.removeCallbacks(sendUpdatesToUI);
        handler.postDelayed(sendUpdatesToUI, 1000); // 1 second
   
    }

    private Runnable sendUpdatesToUI = new Runnable() {
    	public void run() {
    		DisplayLoggingInfo();    		
    	    handler.postDelayed(this, 10000); // 10 seconds
    	}
    };    
    
    private void DisplayLoggingInfo() {
    	Log.d(TAG, "entered DisplayLoggingInfo");

    	intent.putExtra("time", new Date().toLocaleString());
    	intent.putExtra("counter", String.valueOf(++counter));
    	sendBroadcast(intent);
    }
	
	@Override
	public IBinder onBind(Intent intent) {
		return null;
	}

	@Override
	public void onDestroy() {		
        handler.removeCallbacks(sendUpdatesToUI);		
		super.onDestroy();
	}		
}
 

package com.websmithing.broadcasttest;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;

public class BroadcastTest extends Activity {
	private static final String TAG = "BroadcastTest";
	private Intent intent;
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        intent = new Intent(this, BroadcastService.class);
    }

    private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
        	updateUI(intent);       
        }
    };
    
	@Override
	public void onResume() {
		super.onResume();		
		startService(intent);
		registerReceiver(broadcastReceiver, new IntentFilter(BroadcastService.BROADCAST_ACTION));
	}
	
	@Override
	public void onPause() {
		super.onPause();
		unregisterReceiver(broadcastReceiver);
		stopService(intent); 		
	}	
	    
    private void updateUI(Intent intent) {
    	String counter = intent.getStringExtra("counter"); 
    	String time = intent.getStringExtra("time");
    	Log.d(TAG, counter);
    	Log.d(TAG, time);
    	
    	TextView txtDateTime = (TextView) findViewById(R.id.txtDateTime);  	
    	TextView txtCounter = (TextView) findViewById(R.id.txtCounter);
    	txtDateTime.setText(time);
    	txtCounter.setText(counter);
    }
}