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Android Build a Simple Android App (2014) Improving Our Code Dynamically Changing the Background Color

Improving our code

The code below has a Relative Lay out. Change the background color of this layout to green. Use the constant Color.GREEN as the parameter for the method you"ll use.

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

public class MealActivity extends Activity {

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

        TextView foodLabel = (TextView) findViewById(R.id.foodTextView);
        TextView drinkLabel = (TextView) findViewById(R.id.drinkTextView);
        RelativeLayout mealLayout = (RelativeLayout) findViewById(R.id.mealLayout);
      GetbackgroundColor.setBackgroundColor(Color.GREEN);
    }
}

1 Answer

mealLayout.setBackgroundColor(Color.GREEN);

That should do it. You have to parse mealLayout -> this changes the background color of the layout .

    GetbackgroundColor.setBackgroundColor(Color.GREEN);

This changes background color to GetbackgroundColor which does not exist.

Thank you sir you have been very helpful

Sure. Glad I can help.