宽窄优行-由【嘉易行】项目成品而来
younger_times
2023-04-06 a1ae6802080a22e6e6ce6d0935e95facb1daca5c
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//
//  UIView+Shadow.swift
//  SwiftEntryKit
//
//  Created by Daniel Huri on 4/25/18.
//
 
import UIKit
 
extension UIView {
    func applyDropShadow(withOffset offset: CGSize,
                         opacity: Float,
                         radius: CGFloat,
                         color: UIColor) {
        layer.applyDropShadow(withOffset: offset,
                              opacity: opacity,
                              radius: radius,
                              color: color)
    }
    
    func removeDropShadow() {
        layer.removeDropShadow()
    }
}
 
extension CALayer {
    func applyDropShadow(withOffset offset: CGSize,
                         opacity: Float,
                         radius: CGFloat,
                         color: UIColor) {
        shadowOffset = offset
        shadowOpacity = opacity
        shadowRadius = radius
        shadowColor = color.cgColor
        shouldRasterize = true
        rasterizationScale = UIScreen.main.scale
    }
    
    func removeDropShadow() {
        shadowOffset = .zero
        shadowOpacity = 0
        shadowRadius = 0
        shadowColor = UIColor.clear.cgColor
        shouldRasterize = false
    }
}