Question

我可以像这样在UIView中添加自定义状态栏（带渐变）：

override func viewDidLoad() {
    super.viewDidLoad()
    var statusBar : UIView = UIView(frame: CGRect(x: 0, y: 0, width: 375, height: 20))
    let statusBarGradient : CAGradientLayer = CAGradientLayer()
    statusBarGradient.frame = statusBar.bounds
    let cor1 = UIColor(red: 0.416, green: 0.604, blue: 0.796, alpha: 1.0)
    let cor2 = UIColor.whiteColor()
    let arrayColors = [cor1.CGColor, cor2.CGColor]
    statusBarGradient.colors = arrayColors
    view.layer.insertSublayer(statusBarGradient, atIndex:0)
}

我还想在页脚中添加相同的渐变，但我没有太多运气。

Answer 1

如果你将statusBar添加为视图的子视图，你的代码是有效的，但我会动态调整宽度以适应超视图的宽度，所以只需为页脚做同样的事情，但动态设置高度无论您的视图高度减去所需的页脚栏高度。

let statusBar = UIView(frame: CGRect(x: 0, y: 0, width: view.frame.width, height: 20))
let footer = UIView(frame: CGRect(x: 0, y: view.frame.height - 20.0, width: view.frame.width, height: 20))
let statusBarGradient = CAGradientLayer()
let footerGradient = CAGradientLayer()

statusBarGradient.frame = statusBar.bounds
let cor1 = UIColor(red: 0.416, green: 0.604, blue: 0.796, alpha: 1.0)
let cor2 = UIColor.blackColor()
let arrayColors = [cor1.CGColor, cor2.CGColor]

footerGradient.frame = footer.bounds

let arrayColorsFooter = [cor2.CGColor, cor1.CGColor]
statusBarGradient.colors = arrayColors
footerGradient.colors = arrayColorsFooter

statusBar.layer.insertSublayer(statusBarGradient, atIndex:0)
footer.layer.insertSublayer(footerGradient, atIndex:0)
view.addSubview(statusBar)
view.addSubview(footer)

如何在ios 8中添加自定义页脚（带渐变）到UIView

1 个答案: