LocationManager.getLastKnownLocation returns null when it runs just after system booted

Question

my appwidget gets location to get forecast. as title, cant get location at just after system rebooted.

    LocationManager lm = (LocationManager)mContext.getSystemService(Context.LOCATION_SERVICE);

    Criteria criteria = new Criteria();
    criteria.setBearingRequired(false); 
    criteria.setSpeedRequired(false);   
    criteria.setAltitudeRequired(false);    
    String provider = lm.getBestProvider(criteria, true);
    Location loc = lm.getLastKnownLocation(provider);

    double lat = loc.getLatitude(); //null
    double lon = loc.getLongitude();/null

why these are null at just after system rebooted?

shall i post it as an answer ? then you can mark it as an answer to help others — Nezam, Apr 11 '13 at 05:00

score 1 · Answer 1 · edited May 23 '17 at 12:02

1

Using Broadcastreceiver on reboot

// Do something onReceive()

@Override
public void onReceive(Context context, Intent intent) {

//Do something after reboot
}

See this link:

Android BroadcastReceiver on startup - keep running when Activity is in Background

edited May 23 '17 at 12:02

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answered Apr 11 '13 at 04:37

Tuan Vu

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score 0 · Accepted Answer · edited May 23 '17 at 12:02

0

It is because on Boot up both GPS and Wifi/Data Connection is OFF.So,location is null. You need to change a bit of code which can prompt the user to open GPS Settings or Wifi Settings.

edited May 23 '17 at 12:02

Community

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answered Apr 11 '13 at 05:32

Nezam

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LocationManager.getLastKnownLocation returns null when it runs just after system booted

2 Answers2