Andriod M - Request single permission

androidSinglePermission.java

private static final int REQUEST_LOCATION = 1503;

private void requestSinglePermission() {
    String locationPermission = Manifest.permission.ACCESS_FINE_LOCATION;
    int hasPermission = checkSelfPermission(locationPermission);
    String[] permissions = new String[] { locationPermission };
    if (hasPermission != PackageManager.PERMISSION_GRANTED) {
        requestPermissions(permissions, REQUEST_LOCATION);
    } else {
        // Phew - we already have permission!
    }
}