xcode 如何在swift 4中像iOS appstore一样应用卡片视图cornerRadius和shadow
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How to Apply card view cornerRadius & shadow like iOS appstore in swift 4
提问by Rahul Singha Roy
I want to apply "cornerRadius" and card view "shadow" in my collection view cell like iOS appstore today View.
我想在我的收藏视图单元格中应用“ cornerRadius”和卡片视图“ shadow”，例如今天的 iOS appstore View。
回答by oyvindhauge
Just add a subview to the cell and manipulate it's layer property. Tweak the values to your liking. The following code should give a similar result to how it looks in the App Store:
只需向单元格添加一个子视图并操作它的图层属性。根据自己的喜好调整值。下面的代码应该给出与它在 App Store 中的外观类似的结果：
// The subview inside the collection view cell
myView.layer.cornerRadius = 20.0
myView.layer.shadowColor = UIColor.gray.cgColor
myView.layer.shadowOffset = CGSize(width: 0.0, height: 0.0)
myView.layer.shadowRadius = 12.0
myView.layer.shadowOpacity = 0.7
回答by Zahidur Rahman Faisal
Create a new UIView subclass named "CardView" like below:
创建一个名为“CardView”的新 UIView 子类，如下所示：
import Foundation
import UIKit
@IBDesignable
class CardView: UIView {
@IBInspectable var cornerRadius: CGFloat {
get {
return layer.cornerRadius
}
set {
layer.cornerRadius = newValue
layer.shadowRadius = newValue
layer.masksToBounds = false
}
}
@IBInspectable var shadowOpacity: Float {
get {
return layer.shadowOpacity
}
set {
layer.shadowOpacity = newValue
layer.shadowColor = UIColor.darkGray.cgColor
}
}
@IBInspectable var shadowOffset: CGSize {
get {
return layer.shadowOffset
}
set {
layer.shadowOffset = newValue
layer.shadowColor = UIColor.black.cgColor
layer.masksToBounds = false
}
}
}
Then just set "CardView" as Custom Class for your view from XCode Interface Builder. It's simple and easily configurable!
然后只需将“CardView”设置为来自 XCode Interface Builder 的视图的自定义类。它简单且易于配置！
回答by Mojtaba Hosseini
- SwiftUI
- SwiftUI
struct SimpleRedView: View {
var body: some View {
Rectangle()
.foregroundColor(.red)
.frame(width: 340, height: 500, alignment: .center)
}
}
struct ContentView: View {
var body: some View {
SimpleRedView()
.cornerRadius(28)
.shadow(radius: 16, y: 16)
}
}
SimpleRedView()is just for placeholder and you can replace it with any kind of Viewyou like.
SimpleRedView()仅用于占位符，您可以将其替换为View您喜欢的任何类型。
回答by Dominic Holmes
To add onto @oyvindhauge 's great answer -- make sure none of the subviews inside myViewextend to the edges. For instance, my card view contained a table view that fills the card -- so it's necessary to set the tableView.layer.cornerRadius = 20.0as well. This applies to any subview that fills the card.
添加到@oyvindhauge 的好答案 - 确保里面的子视图都没有myView延伸到边缘。例如，我的卡片视图包含一个填充卡片的表格视图——所以也有必要设置它tableView.layer.cornerRadius = 20.0。这适用于填充卡片的任何子视图。
