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Android Build an Interactive Story App Finishing the User Interface Using a Model in the Presenter

kelvin gwaruka
kelvin gwaruka
931 Points

Constructors

The LandingActivity interacts with the Spaceship model object we created. Start by setting spaceship to a new Spaceship object in the onCreate() method. Use the custom constructor that takes a String parameter, and pass in "FIREFLY" as the parameter.

Please find my code attached below, I believe that I am doing the right thing but I keep getting compilation errors. I am dont fully understand what the question is asking for?

LandingActivity.java
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class LandingActivity extends AppCompatActivity {

    public Button thrustButton;
    public TextView typeLabel;
    public EditText passengersField;

    public Spaceship spaceship;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_landing);

        thrustButton = (Button)findViewById(R.id.thrustButton);
        typeLabel = (TextView)findViewById(R.id.typeTextView);
        passengersField = (EditText)findViewById(R.id.passengersEditText);

        // Add your code here!
     mSpaceship = new Spaceship("FIREFLY");   
      }          
    }
}
Spaceship.java
public class Spaceship {
    private String shipType;
    private int numPassengers = 0;

    public String getShipType() {
      return shipType;
    }

    public void setShipType(String shipType) {
      this.shipType = shipType;
    }

    public int getNumPassengers() {
      return numPassengers;
    }

    public void setNumPassengers(int numPassengers) {
      this.numPassengers = numPassengers;
    }

    public Spaceship() {
      shipType = "SHUTTLE";
    }

    public Spaceship(String shipType) {
      this.shipType = shipType;
    }
}

2 Answers

Seth Kroger
Seth Kroger
56,413 Points

Just a little typo: the member variable is called spaceship but you have mSpaceship when you try to assign it.

kelvin gwaruka
kelvin gwaruka
931 Points

Hi Seth, thanks for your reply, but I have changed my code as per your advice and it still wont work for me. I have even tried spaceship with small letters but still wont compile.

import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText;

public class LandingActivity extends AppCompatActivity {

public Button thrustButton;
public TextView typeLabel;
public EditText passengersField;

public Spaceship spaceship;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_landing);

    thrustButton = (Button)findViewById(R.id.thrustButton);
    typeLabel = (TextView)findViewById(R.id.typeTextView);
    passengersField = (EditText)findViewById(R.id.passengersEditText);

    // Add your code here!
   Spaceship = new Spaceship ("FIREFLY"); 
}

}

spaceship = new Spaceship("FIREFLY"); this got me working