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

Farouk Charkas
Farouk Charkas
1,957 Points
Posted by Farouk Charkas
Farouk Charkas
1,957 Points

What is "initializing" a button

I am entering findViewByld(); thinking that will initialize my button, but it is not working

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

public class MainActivity extends Activity {

    protected findViewByld(); mExterminateButton;

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

        // Declare our view variables

    }

}

1 Answer

Hao Tran
Hao Tran
16,610 Points

Above the onCreate method is where you're declaring your variables and objects. The code challenge asks for initializing it, which in this case would use the statement:

mExterminateButton = (Button)findViewById(R.id.button1);

You could initialize it in the same statement as your declaration, but for best Android practices, you should initialize it in the onCreate method.