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Android Build an Interactive Story App User Input Finding Views by IDs

JOSEPHINE MUFOWO
PLUS
JOSEPHINE MUFOWO
Courses Plus Student 158 Points

Initializing button

Hello,my answer says there is a compiler error.Why?

MainActivity.java
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    protected Button exterminateButton;
  <Button
      anroid:id=''@+id/button1''
      anroid:text=''exterminateButton''

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

        // Declare our view variables

    }

}

1 Answer

Hello,

You should Add your code after "Declare our new variable":

Declaring a (Button). Using the Button name (mExterminateButton) Using findById with properties (R.id.button1) mExterminateButton = (Button) findViewById(R.id.button1);

public class MainActivity extends Activity {

    protected Button mExterminateButton;

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

        // Declare our view variables
        mExterminateButton = (Button) findViewById(R.id.button1); // <- your code here
    }
}