使用Canvas J2ME为背景填充2种颜色

Question

Im new in J2ME, and i very interested in canvas because it can do a lot of work but i have trouble is define coordinate X and Y

I try to fill my screen with 2 color Green and Gray but it miss a part above screen:

I need you help

Thank you!!

Answer 1

second occurrence of i * size in fillRect in rev 3 of your question feels slippery

    int size = 50;
    for(int i = 0; i < itemsPerLines.length; i++){
         int x = 0 + 1, y = i * size,
                width = getWidth() - 2, height = size /* not i*size */;
         if(i % 2 == 0){
             g.setColor(0x00ff00); // green - not 0x0ff000
         }else{
             g.setColor(0x414141);
         }
         g.fillRect(x, y, width, height);
         g.setColor(0xff00ff); // red + blue? wonder how it looks
         int x1 = i * size, y1 = y;
         g.drawLine(x, y, x1, y1);


    }
}