问题
I am wondering if i can do this, i want to implement a service that will be called when activity launches and should run at regular intervals, and when i stop the activity by closing or pressing back the service should stop and alarm manager should not invoke service before the activity relaunches. One more thing i want to send some data on which service can operate and give results back to activity. currently i am doing like this.....
class MyService extends Service{
}
class MyScheduler extends BroadCastReceiver{
//Here alarm manager and pending intent is initialized to repeat after regular intervals.
}
class MyActivity extends Activity{
onCreate(){
//here i am binding the service
}
}
MyBrodcastReceiver is added into manifest
please help and suggest how to do it?
回答1:
for starting:
this.startService(new Intent(this, MyService.class));
for stoping:
this.stopService(new Intent(this, MyService.class));
for having intervals create a service that calls a BrodcastReceiver periodically like the following sample:
in your service:
// An alarm for rising in special times to fire the pendingIntentPositioning
private AlarmManager alarmManagerPositioning;
// A PendingIntent for calling a receiver in special times
public PendingIntent pendingIntentPositioning;
@Override
public void onCreate() {
super.onCreate();
alarmManagerPositioning = (AlarmManager) getSystemService
(Context.ALARM_SERVICE);
Intent intentToFire = new Intent(
ReceiverPositioningAlarm.ACTION_REFRESH_SCHEDULE_ALARM);
pendingIntentPositioning = PendingIntent.getBroadcast(
this, 0, intentToFire, 0);
};
@Override
public void onStart(Intent intent, int startId) {
long interval = 10 * 60 * 1000;
int alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP;
long timetoRefresh = SystemClock.elapsedRealtime();
alarmManagerPositioning.setRepeating(alarmType,
timetoRefresh, interval, pendingIntentPositioning);
}
来源：https://stackoverflow.com/questions/16249202/want-to-run-and-stop-service-with-activity-android