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copied!<p>Make a BaseActivity for all of your Activities. In the BaseActivity, do the following:</p> <pre><code>public class MyActivity extends Activity implements ServiceConnection { //you may add @override, it's optional protected void onStart() { super.onStart(); Intent intent = new Intent(this, MyService.class); bindService(intent, this, 0); } //you may add @override, it's optional protected void onStop() { super.onStop(); unbindService(this); } public void onServiceConnected(ComponentName name, IBinder binder) {}; public void onServiceDisconnected(ComponentName name) {}; /* lots of other stuff ... */ } </code></pre> <p>Your BaseActivity will need to implement ServiceConnection interface (or you can use an anonymous inner class), but you can leave those methods empty.</p> <p>In your Service class, you need to implement the <code>onBind(Intent)</code> method and return an IBinder. The easiest way to do that is like so:</p> <pre><code>public class MyService extends Service { private final IBinder localBinder = new LocalBinder(); public void onCreate() { super.onCreate(); // first time the service is bound, it will be created // you can start up your timed-operations here } public IBinder onBind(Intent intent) { return localBinder; } public void onUnbind(Intent intent) { // called when the last Activity is unbound from this service // stop your timed operations here } public class LocalBinder extends Binder { MyService getService() { return MyService.this; } } } </code></pre>

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