private Location getLastKnownLocation() {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return null;
}
LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
List<String> providers = locationManager.getAllProviders();
Location bestLocation = null;
for (String provider : providers) {
Location l = locationManager.getLastKnownLocation(provider);
if (l == null) {
continue;
}
if (bestLocation == null || l.getAccuracy() < bestLocation.getAccuracy()) {
// Found best last known location: %s", l);
bestLocation = l;
}
}
return bestLocation;
}
解决 locationManager.getLastKnownLocation 为null
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