android - getting location updates after switching between classes -

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in previous question trying gather location data , store in db. when press on phone when running application go collection screen location not resume updating though have , onresume() method...

@override public void onresume() {     // todo auto-generated method stub     super.onresume();     lm.requestlocationupdates(towers, 500, 0, this);  }

does method handle if leave app open up? how go making app continue request updates after hit button when viewing location data in database?


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