Can't set selection value of Spinner with object

I have spinner

:

 List<Vehicle> vehicles = dataSource.getAllVehicles();
 Spinner spVehicle = (Spinner) dialog.findViewById(R.id.spVehicle);
 SpinnerVehicleAdapter sAdapter = new SpinnerVehicleAdapter(getContext(), R.layout.spinner_textview, vehicles);
 spVehicle.setAdapter(sAdapter);

      

        
        
        
      

    

I want to pre-select the dropdown value of the spinner so that I think I should pre-select it using the appropriate Vehicle

object , right?

Keep in mind that this is inside ArrayAdapter<Oil>

where I have access to this:

Oil oilChange;
oilChange.getVehicleId();

      

        
        
        
      

    

So, with this information, I'm trying to set it like this:

Vehicle v = new Vehicle(getContext(), oilChange.getVehicleId());
int spinnerPostion = sAdapter.getPosition(v);
spVehicle.setSelection(spinnerPostion);

      

        
        
        
      

    

Here are additional methods: (I believe I confirmed below code is not a problem.)

public Vehicle(Context mContext, int vehicleId) {

    GasDataSource datasource = new GasDataSource(mContext);
    datasource.open();
    Vehicle vehicle = datasource.createVehicle(vehicleId);

    this.vehicleName = vehicle.getVehicleName();
    this.vehicleYear = vehicle.getVehicleYear();
    this.vehicleModel = vehicle.getVehicleModel();
    this.vehicleMake = vehicle.getVehicleMake();
    this.oilDistance = vehicle.getOilDistance();
    this.drivenDistance = vehicle.getDrivenDistance();

    datasource.close();
}

      

        
        
        
      

    

And then:

public Vehicle createVehicle(long id) {

    if (!database.isOpen()) {
        open();
    }

    Vehicle vehicle = new Vehicle();
    Cursor cursor = database.query(MySQLiteHelper.TABLE_VEHICLE, allVehColumns, MySQLiteHelper.COLUMN_VEHICLE_ID + " = " + id, null, null, null, null);
    while (cursor.moveToNext()) {
        vehicle = cursorToVehicle(cursor);
    }
    // Make sure to close the cursor
    cursor.close();
    return vehicle;
}

      

        
        
        
      

    

The dropdown now spinner

uses the property vehicle.vehicleName

;

And I have:

  public String toString() {return getVehicleName(); }

      

        
        
        
      

    

... in my car class.

Also, I have no glitch, I just cannot set the selection based on the provided vehicle object.

With logging, I have confirmed that I am creating the correct object based on the list string. So mine SQL

is good. But I am returning -1 in spinnerPosition

.

Could this work in my method? Or do I need to match on String

not Object

s?

EDIT: THIS IS MY WORK CODE

  Vehicle v = dataSource.findVehicle(oilChange.getVehicleId(), vehicles);
  if (v != null) {
       int spinnerPostion = sAdapter.getPosition(v);
       spVehicle.setSelection(spinnerPostion);
  }

public Vehicle findVehicle(long id, List<Vehicle> list) {
    for(Vehicle vehicle : list) {
        if(vehicle.getId() == id) {
            return vehicle;
        }
    }
    return null;
 }