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

Posted by Michael Hampshire
Michael Hampshire
12,206 Points

Why is this question in the course right off the start?

I just started the "Build an Interactive Story App" course and I watched the first video. I then moved on to the second step and it was this question:

"Initialize the member variable mExterminateButton using the findViewById() method. The ID for the button is button1. Don't forget to cast the generic View returned by the method!"

Why is this a part of the course right off the start? Was it a test to see if the user watched the "How to make a simple app" course? Is it an error? I answered it right, but it seemed kind of weird.

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

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

    }

}

1 Answer

Jason Anello
PLUS
Jason Anello
Courses Plus Student 94,610 Points
Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Michael,

In the "Beginner Android Development" track, this course is listed after "Build a Simple Android App".

I don't know if that course was listed as a prerequisite for this course but I think the challenge is assuming a certain level of prerequisite knowledge.