for (int i =0 ; i <
7; i++) {
UIView *view = [[UIViewalloc]
initWithFrame:CGRectMake(0 + i *20,
0 + i *20,320 –
40 * i ,568 – i *
40)];
CGFloat color = (arc4random() %256 /255.0 );
CGFloat saturation = (
arc4random() % 128 /
256.0 ) + 0.5;
CGFloat brightness = (
arc4random() % 128 /
256.0 ) + 0.5;
view.backgroundColor = [UIColorcolorWithHue:color
saturation:saturation
brightness:brightnessalpha:1];
[self.windowaddSubview:view];
[view release];
}