requestLocationUpdates为空无法获取当前位置

Question

 LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
            Criteria c = new Criteria();
            c.setAccuracy(Criteria.ACCURACY_COARSE);
            c.setSpeedRequired(false);
            c.setCostAllowed(false);
            c.setBearingRequired(false);
            c.setAltitudeRequired(false);
            c.setPowerRequirement(Criteria.POWER_LOW);
            String bestProvider = lm.getBestProvider(c, true);
            Location location = lm.getLastKnownLocation(bestProvider);location 返回null求助

Answer 1

https://bbs.csdn.net/topics/390792334