Android Background Download Data

I want to make a background running service (independent of an app) which would download weather data from server periodically every day. I already have code to download data from

Solution 1:

You can Create a Android Intent Service :-

publicclassBackendServiceextendsIntentService {
    publicBackendService() {
        super("BackendService");
    }

    @OverrideprotectedvoidonHandleIntent(Intent intent) {
        // Your Download code
    }
}

Then set a Alarm Receiver to set the interval in which service will be called.

publicvoidbackendscheduleAlarm() {
    // Construct an intent that will execute the AlarmReceiverIntentintent=newIntent(getApplicationContext(), BackendAlarm.class);
    // Create a PendingIntent to be triggered when the alarm goes offfinalPendingIntentpIntent= PendingIntent.getBroadcast(this, BackendAlarm.REQUEST_CODE,
            intent, PendingIntent.FLAG_UPDATE_CURRENT);
    // Setup periodic alarm every 1 hourlongfirstMillis= System.currentTimeMillis(); // first run of alarm is immediateintintervalMillis=3000; //3600000; // 60 minAlarmManagerbackendalarm= (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
    backendalarm.setInexactRepeating(AlarmManager.RTC_WAKEUP, firstMillis, intervalMillis, pIntent);
}

And Create a Broadcast Receiver class to call that service:

publicclassBackendAlarmextendsBroadcastReceiver {
publicstaticfinalintREQUEST_CODE=12345;
// Triggered by the Alarm periodically (starts the service to run task)@OverridepublicvoidonReceive(Context context, Intent intent) {
    Intenti=newIntent(context, BackendService.class);
    i.putExtra("foo", "bar");
    context.startService(i);
} }

Solution 2:

read about Android Services which are mainly made for such background work:

http://developer.android.com/guide/components/services.html

all you need is to start the service on a certain time you set.