package it372.changecolors;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.widget.LinearLayout;

public class MainActivity extends Activity {
    private int colorCode = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        LinearLayout layout = (LinearLayout) findViewById(R.id.layout);
    }

    protected void onClick(View view) {
        LinearLayout layout = (LinearLayout) findViewById(R.id.layout);
        colorCode = (colorCode + 1) % 3;
        if (colorCode == 1) {
            layout.setBackgroundColor(
                getResources( ).getColor(R.color.lightBlue));
        }
        else if (colorCode == 2)  {
            layout.setBackgroundColor(
                getResources( ).getColor(R.color.lightPink));
        }
        else {
            layout.setBackgroundColor(
                getResources( ).getColor(R.color.lightGreen));
        }
    }
}