I am new in android.
I use bellow code to run application at a special time. but some times when mobile phone is locked and screen is off , service stops and does not work.
public class TimeService extends Service {
IBinder mBinder;
Timer t;
public IBinder onBind(Intent intent) {
return mBinder;
}
public void onDestroy(){
t.cancel();
}
public void onTaskRemoved(Intent rootIntent){
Intent restartServiceIntent = new Intent(getApplicationContext(), this.getClass());
restartServiceIntent.setPackage(getPackageName());
PendingIntent restartServicePendingIntent = PendingIntent.getService(getApplicationContext(), 1, restartServiceIntent, PendingIntent.FLAG_ONE_SHOT);
AlarmManager alarmService = (AlarmManager) getApplicationContext().getSystemService(Context.A LARM_SERVICE);
alarmService.set(
AlarmManager.ELAPSED_REALTIME,
SystemClock.elapsedRealtime() + 1000,
restartServicePendingIntent);
super.onTaskRemoved(rootIntent);
}
public int onStartCommand(Intent intent, int flags, int startId) {
final DbHelper db=new DbHelper(this);
int time[]=db.getAlarmTime();
Calendar c = Calendar.getInstance();
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute=c.get(Calendar.MINUTE);
int rt=(time[0]*3600+time[1]*60)-(hour*3600+minute*60)*1000;
t=new Timer();
t.schedule(
new TimerTask() {
public void run() {
//codes...
stopService(i);
startService(i);
}
},rt
);
return START_STICKY;
}
}
When the device goes to sleep state, your code will not be called, I suggest that you use AlarmManager to handle your code, instead of your service. You can then put your code inside a Receiver's onReceive method, and if you need you can acquire a wakelock until your code is executed.
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