Android 后台服务，用于检查位置服务是否开启

Question

我正在寻找一种后台服务来检查位置服务何时打开或关闭。

Answer 1

You can listen location updates using FusedLocationClient :

@Override
protected void onResume() {
    super.onResume();
    if (requestingLocationUpdates) {
        startLocationUpdates();
    }
}

private void startLocationUpdates() {
    fusedLocationClient.requestLocationUpdates(locationRequest,
            locationCallback,
            Looper.getMainLooper());
}

  locationCallback = new LocationCallback() {
        @Override
        public void onLocationResult(LocationResult locationResult) {
            if (locationResult == null) {
                return;
            }
            for (Location location : locationResult.getLocations()) {
                // Update UI with location data
                // ...
            }
        };
    };