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    <p>use bindService(Intent service, ServiceConnection conn, int flag) to bind your countdown service, then in your service, return your binder that contain your count, and in your activity, a instantiated ServiceConnection object can handle the binder. AIDL can do this as well, suggest have a look at how to bind service firstly, wish can help you.</p> <p>demo</p> <pre><code>public class BindService extends Service{ private int count; private boolean quit; private MyBinder binder = new MyBinder(); // My Binder public class MyBinder extends Binder { public int getCount() { // get the counting status：count return count; } } @Override public IBinder onBind(Intent intent) { System.out.println("Service is Binded"); // return the binder instance return binder; } @Override public void onCreate() { super.onCreate(); System.out.println("Service is Created"); // counting work new Thread() { @Override public void run() { while (!quit) { try { Thread.sleep(1000); } catch (InterruptedException e) { } count++; } } }.start(); } // invoke when the service unbind @Override public boolean onUnbind(Intent intent) { System.out.println("Service is Unbinded"); return true; } @Override public void onDestroy() { super.onDestroy(); this.quit = true; System.out.println("Service is Destroyed"); } @Override public void onRebind(Intent intent) { super.onRebind(intent); this.quit = true; System.out.println("Service is ReBinded"); } </code></pre> <p>}</p> <p>and then the activity</p> <pre><code>public class MainActivity extends Activity{ Button bind , unbind , getServiceStatus; BindService.MyBinder binder; // define a ServiceConnection object private ServiceConnection conn = new ServiceConnection() { // then the Activity connected with the Service, this will be called @Override public void onServiceConnected(ComponentName name , IBinder service) { System.out.println("--Service Connected--"); // achieve MyBinder instance binder = (BindService.MyBinder) service; } // then the connection break off @Override public void onServiceDisconnected(ComponentName name) { System.out.println("--Service Disconnected--"); } }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); bind = (Button) findViewById(R.id.bind); unbind = (Button) findViewById(R.id.unbind); getServiceStatus = (Button) findViewById(R.id.getServiceStatus); final Intent intent = new Intent(); intent.setAction("org.crazyit.service.BIND_SERVICE"); bind.setOnClickListener(new OnClickListener() { @Override public void onClick(View source) { //bind Serivce bindService(intent , conn , Service.BIND_AUTO_CREATE); } }); unbind.setOnClickListener(new OnClickListener() { @Override public void onClick(View source) { //unbind Serivce unbindService(conn); } }); getServiceStatus.setOnClickListener(new OnClickListener() { @Override public void onClick(View source) { // Toast to show the conut value Toast.makeText(MainActivity.this , "Serivce's count value is：" + binder.getCount() , 4000) .show(); } }); }} </code></pre>
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    1. POImplementing a Count down timer using Service in the background
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    1. COtried using bindService. the thing is I am new in android and things aren't always quite clear when it comes to implementation. could you please make it clear a bit more by showing it in the code?
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    2. COOK, here is my demo, I will edit my answer to show you.
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    3. COwhen i click on service status button, the app crashes :(
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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