颜色小渐变

//底部小渐变

UIView *colorView = [[UIView alloc] init];

[colorView setFrame:CGRectMake(viewX(0), self.frame.size.height - viewY(30), max - viewX(50), viewY(10))];

[self.myScrollView addSubview:colorView];

CAGradientLayer *gradient = [CAGradientLayer layer];

gradient.frame = colorView.bounds;

gradient.colors = [NSArray arrayWithObjects:

(id)[UIColor colorWithHex:@"#ffffff"].CGColor,

(id)[UIColor colorWithHex:@"#FBFCFC"].CGColor,

(id)[UIColor colorWithHex:@"#EFF3F4"].CGColor, nil];

[colorView.layer addSublayer:gradient];