Java tutorial
//package com.java2s; import android.graphics.Canvas; import android.graphics.Paint; import android.util.Log; public class Main { public static void drawBackground(Canvas canvas, int backgroundColor, int width, int height) { Paint paint = new Paint(); paint.setStyle(Paint.Style.FILL_AND_STROKE); paint.setAntiAlias(true); paint.setColor(backgroundColor); canvas.drawRect(0, 0, width, height, paint); } }