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Android Testing in Android Unit Testing Viewing the Presenter

Joshua Douce
Joshua Douce
13,120 Points

Here's a simple counter app consisting of only a TextView and a Button. When the Button is pressed the counter (TextView

I keep getting this error public MainActivityPresenter(MainActivityView)

I have checked, double checked and triple checked still no joy. Have i got his wrong or is there something wrong with the code challenge?

MainActivity.java
public class MainActivity extends AppCompatActivity implements MainActivityView {
    TextView counter;
    Button button;
    MainActivityPresenter presenter;

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

        presenter = new MainActivityPresenter(this);

        counter = (TextView) findViewById(R.id.textView);
        button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                int count = Integer.parseInt(counter.getText().toString());
                presenter.updateCounterTextView(count + "");
            }
        });
    }

    @Override
    public void changeTextViewText(String text) {
        counter.setText(text);
    }
}
MainActivityView.java
public interface MainActivityView {
   void changeTextViewText(String text);
}
MainActivityPresenter.java
public class MainActivityPresenter {
  MainActivityView newView;

 public MainActivityPresenter(MainActivityView view) {
        newView = view;
    } // MainActivityPresenter()

  public void updateCounterTextView(String text){
        newView.changeTextViewText(text);
    }
}

1 Answer

Seth Kroger
Seth Kroger
56,413 Points

You're forgetting to add one to the count.

Joshua Douce
Joshua Douce
13,120 Points

Oh dear, spent hours looking at the syntax and never checked that i was increasing by one. Thank you