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

Posted by Chido Vambe
Chido Vambe
4,638 Points

dynamic changing the background color

RelativeLayout variable named mealLayout. Change the background color of this layout to green. Use the constant Color.GREEN.

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);
        mealLayout.setBackgroundColor(Color.GREEN.);
    }
}