horizontal CAGradientLayer in iOS 7.0

Question

Inside my application I use a CAGradientLayer to set the background of my cell, in this way:

retValue = [tableView dequeueReusableCellWithIdenti         


        

Answer 1

Just came across it now, 3 years after. Thank you Gord for this solution. Here it is in Swift 3.0:

func drawGradientOver(container: UIView) {
    let transBgColor = UIColor.clear
    let black = UIColor.black
    let maskLayer = CAGradientLayer()
    maskLayer.opacity = 0.8
    maskLayer.colors = [black.cgColor, transBgColor.cgColor, transBgColor.cgColor, black.cgColor]

    // Hoizontal - commenting these two lines will make the gradient veritcal
    maskLayer.startPoint = CGPoint(x: 0.0, y: 0.5)
    maskLayer.endPoint = CGPoint(x: 1.0, y: 0.5)

    let gradTopStart = NSNumber(value: 0.0)
    let gradTopEnd = NSNumber(value: 0.4)
    let gradBottomStart = NSNumber(value: 0.6)
    let gradBottomEnd = NSNumber(value: 1.0)
    maskLayer.locations = [gradTopStart, gradTopEnd, gradBottomStart, gradBottomEnd]

    maskLayer.bounds = container.bounds
    maskLayer.anchorPoint = CGPoint.zero
    container.layer.addSublayer(maskLayer)
}