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Android Build a Simple Android App with Java Improving Our Code Dynamically Changing the Background Color

The code below has a RelativeLayout variable named mealLayout. Change the background color of this layout to green. Use

What could be the problem here?

import android.os.Bundle;
import android.widget.TextView;

public class MealActivity extends Activity {

    private RelativeLayout relativeLayout;  
    public void onCreate(Bundle savedInstanceState) {
        mealLayout.setBackgroundColor (Color.GREEN);

        TextView foodLabel = (TextView) findViewById(R.id.foodTextView);
        TextView drinkLabel = (TextView) findViewById(R.id.drinkTextView);
       RelativeLayout mealLayout = (RelativeLayout) findViewById(R.id.mealLayout);

1 Answer

Jennifer Nordell
Jennifer Nordell
Treehouse Teacher

Hi there, Sezare Freta Miguel ! The line of code you added is actually fine, but it's a little misplaced. You can't change the background color of something that isn't yet defined. The mealLayout variable is defined in the last line. Moving your line of code below that line causes this challenge to pass!

Hope this helps! :sparkles:

Thank you, Jennifer Nordell...