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Android Build an Interactive Story App (Retired) Finishing the User Interface Using a Model in the Controller

Bhupend Patil
Bhupend Patil
25,918 Points
Posted by Bhupend Patil
Bhupend Patil
25,918 Points

Using a Model in the Controller. Code Challenge 3 of 3

Tried for more than 2hrs. Help me please :(

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

public class LandingActivity extends Activity {

    public Button mThrustButton;
    public TextView mTypeLabel;
    public EditText mPassengersField;

    public Spaceship mSpaceship;

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

        mThrustButton = (Button)findViewById(R.id.thrustButton);
        mTypeLabel = (TextView)findViewById(R.id.typeTextView);
        mPassengersField = (EditText)findViewById(R.id.passengersEditText);

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


      mTypeLabel.setText(mSpaceship.getType());
    }
}
Spaceship.java 
public class Spaceship {
    private String mType;
    private int mNumPassengers = 0;

    public String getType() {
      return mType;
    }

    public void setType(String type) {
      mType = type;
    }

    public int getNumPassengers() {
      return mNumPassengers;
    }

    public void setNumPassengers(int numPassengers) {
      mNumPassengers = numPassengers;
    }

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

    public Spaceship(String type) {
      mType = type;
    }

  public Spaceship getNumPassenger(int numPassengers) {
    return mSpaceship[numPassengers];
  }
}
Milan Tailor
Milan Tailor
5,132 Points
Milan Tailor
Milan Tailor
5,132 Points

At the stage as you with this one, I think I'm almost there, the only pop up error Im getting is with mPassengersField requiring a string but getting an int. Of course, as with all of this I could be completely wrong. You found the solution? How to convert from a string to int, brain work...

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

public class LandingActivity extends Activity {

    public Button mThrustButton;
    public TextView mTypeLabel;
    public EditText mPassengersField;

    public Spaceship mSpaceship;

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

        mThrustButton = (Button)findViewById(R.id.thrustButton);
        mTypeLabel = (TextView)findViewById(R.id.typeTextView);
        mPassengersField = (EditText)findViewById(R.id.passengersEditText);

        // Add your code here!
      //setup new spaceship  
        mSpaceship = new Spaceship("FIREFLY", 2);
      // Update TextView to use Spaceship's type  
      mTypeLabel.setText(mSpaceship.getType());
      mPassengersField.setText(mSpaceship.getNumPassengers());

    }
}

public class Spaceship {
    private String mType;
    private int mNumPassengers = 0;

    public String getType() {
      return mType;
    }

    public void setType(String type) {
      mType = type;
    }

    public int getNumPassengers() {
      return mNumPassengers;
    }

    public void setNumPassengers(int numPassengers) {
      mNumPassengers = numPassengers;
    }

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

    public Spaceship(String type, int numPassengers) {
      mType = type;
      mNumPassengers = numPassengers;
    }
}
Bhupend Patil
Bhupend Patil
25,918 Points
Bhupend Patil
Bhupend Patil
25,918 Points

Thankyou Sir it helped me :D

1 Answer

Milan Tailor
Milan Tailor
5,132 Points
Milan Tailor
Milan Tailor
5,132 Points

Looks like I was overcomplicating it the files should be:

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

public class LandingActivity extends Activity {

    public Button mThrustButton;
    public TextView mTypeLabel;
    public EditText mPassengersField;

    public Spaceship mSpaceship;

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

        mThrustButton = (Button)findViewById(R.id.thrustButton);
        mTypeLabel = (TextView)findViewById(R.id.typeTextView);
        mPassengersField = (EditText)findViewById(R.id.passengersEditText);

        // Add your code here!
      //setup new spaceship  
        mSpaceship = new Spaceship("FIREFLY");
      // Update TextView to use Spaceship's type  
      mTypeLabel.setText(mSpaceship.getType());
      mPassengersField.setText("" + mSpaceship.getNumPassengers());

    }
}

public class Spaceship {
    private String mType;
    private int mNumPassengers = 0;

    public String getType() {
      return mType;
    }

    public void setType(String type) {
      mType = type;
    }

    public int getNumPassengers() {
      return mNumPassengers;
    }

    public void setNumPassengers(int numPassengers) {
      mNumPassengers = numPassengers;
    }

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

    public Spaceship(String type) {
      mType = type;
    }
}

So I think, the number of passengers is already set in the second file so we just need to get them in the first file, like mPassengersField.setText("" + mSpaceship.getNumPassengers());

The speech marks are just there to quickly convert an int to a string.

It passed, so I'm hoping it's right!