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

Code someone explain the member variable and public class

Code someone explain the member variable and public class

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);

      public void onClick(View View) {
      RelativeLayout.setBackgroundColor(Color.GREEN);
      }
    }
}

1 Answer

anthony crowell
PLUS
anthony crowell
Courses Plus Student 10,953 Points

The public class makes any members accessible to any object that has access to the object. Another name for the members are field, so if you declared private variables but made the class public, none of the objects that have access to the public class could directly access the variables but they could access the value being returned to the class.