312 lines
9.9 KiB
Swift
312 lines
9.9 KiB
Swift
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// UIView+Ext.swift
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// DouYinSwift5
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//
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// Created by lym on 2020/7/23.
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// Copyright © 2020 lym. All rights reserved.
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//
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import UIKit
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public func adaptWidth(designWidth: CGFloat = 375.0, _ vale: CGFloat) -> CGFloat {
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return UIScreen.main.bounds.size.width / designWidth * vale
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}
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// MARK: - 属性
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@objc extension UIView {
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/// 边框颜色
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@IBInspectable var borderColor: UIColor? {
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get {
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guard let color = layer.borderColor else { return nil }
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return UIColor(cgColor: color)
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}
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set {
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guard let color = newValue else {
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layer.borderColor = nil
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return
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}
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layer.borderColor = color.cgColor
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}
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}
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/// 边框宽度
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@IBInspectable var borderWidth: CGFloat {
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get { return layer.borderWidth }
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set { layer.borderWidth = newValue }
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}
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/// 圆角半径
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@IBInspectable var cornerRadius: CGFloat {
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get { return layer.cornerRadius }
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set {
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layer.cornerRadius = newValue
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layer.masksToBounds = true
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}
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}
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var size: CGSize {
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get { return frame.size }
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set { width = newValue.width; height = newValue.height }
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}
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var width: CGFloat {
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get { return frame.size.width }
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set { return frame.size.width = newValue }
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}
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var height: CGFloat {
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get { return frame.size.height }
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set { return frame.size.height = newValue }
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}
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var x: CGFloat {
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get { return frame.origin.x }
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set { frame.origin.x = newValue }
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}
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var y: CGFloat {
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get { return frame.origin.y }
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set { frame.origin.y = newValue }
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}
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var centerX: CGFloat {
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get { return center.x }
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set { center.x = newValue }
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}
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var centerY: CGFloat {
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get { return center.y }
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set { center.y = newValue }
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}
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var origin: CGPoint {
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get { return frame.origin }
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set { frame.origin = newValue }
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}
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}
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@objc public extension UIView {
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/// 删除所有的子视图
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func removeSubviews() {
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subviews.forEach { $0.removeFromSuperview() }
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}
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/// 添加阴影
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/// - Parameters:
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/// - color: 颜色
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/// - radius: 半径
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/// - offset: 偏移
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/// - opacity: 透明度
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func addShadow(ofColor color: UIColor = UIColor(red: 0.07, green: 0.47, blue: 0.57, alpha: 1.0),
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radius: CGFloat = 3,
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offset: CGSize = .zero,
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opacity: Float = 0.5)
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{
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layer.shadowColor = color.cgColor
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layer.shadowOffset = offset
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layer.shadowRadius = radius
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layer.shadowOpacity = opacity
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layer.masksToBounds = false
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}
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/// 返回视图的控制器对象
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///
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/// - Returns: 控制器对象，可能为空
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func viewController() -> UIViewController? {
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var view: UIView? = self
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repeat {
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if let nextResponder = view?.next {
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if nextResponder.isKind(of: UIViewController.self) {
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return nextResponder as? UIViewController
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}
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}
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view = view?.superview
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} while view != nil
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return nil
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}
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}
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@objc extension UIView {
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@discardableResult
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/// 添加渐变背景
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func addGradientColor(startPoint: CGPoint,
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endPoint: CGPoint,
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locs: [NSNumber] = [0, 1],
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colors: [Any],
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cornerRadius: CGFloat = 0) -> CAGradientLayer?
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{
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guard startPoint.x >= 0,
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startPoint.x <= 1,
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startPoint.y >= 0,
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startPoint.y <= 1,
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endPoint.x >= 0,
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endPoint.x <= 1,
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endPoint.y >= 0,
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endPoint.y <= 1
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else {
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return nil
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}
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layoutIfNeeded()
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var gradientLayer: CAGradientLayer!
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removeGradientLayer()
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gradientLayer = CAGradientLayer()
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gradientLayer.frame = layer.bounds
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gradientLayer.startPoint = startPoint
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gradientLayer.endPoint = endPoint
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gradientLayer.colors = colors
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gradientLayer.cornerRadius = layer.cornerRadius
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gradientLayer.masksToBounds = true
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gradientLayer.locations = locs
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if cornerRadius > 0 {
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let shapeLayer = CAShapeLayer()
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shapeLayer.borderWidth = 1
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shapeLayer.path = UIBezierPath(roundedRect: gradientLayer.bounds, cornerRadius: cornerRadius).cgPath
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shapeLayer.fillColor = UIColor.clear.cgColor // 必须要设置成clearColor或者nil，默认是黑色
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shapeLayer.strokeColor = UIColor.white.cgColor // 随便设置一个非clearColor的颜色
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gradientLayer.mask = shapeLayer
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}
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// 渐变图层插入到最底层，避免在uibutton上遮盖文字图片
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layer.insertSublayer(gradientLayer, at: 0)
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backgroundColor = UIColor.clear
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// self如果是UILabel，masksToBounds设为true会导致文字消失
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// layer.masksToBounds = false
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return gradientLayer
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}
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public func removeGradientLayer() {
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if let sl = layer.sublayers {
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for layer in sl {
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if layer.isKind(of: CAGradientLayer.self) {
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layer.removeFromSuperlayer()
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}
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}
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}
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}
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func addDashedBorder(to view: UIView, lineLength: CGFloat = 8, lineSpacing: CGFloat = 2, cornerRadius: CGFloat = 0) {
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let shapeLayer = CAShapeLayer()
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shapeLayer.name = "DashedBorder"
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let lineColor = UIColor.c.con
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// let lineColor = UIColor.red
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shapeLayer.bounds = view.bounds
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shapeLayer.position = CGPoint(x: view.bounds.width / 2, y: view.bounds.height / 2)
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shapeLayer.fillColor = UIColor.clear.cgColor
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shapeLayer.strokeColor = lineColor.cgColor
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shapeLayer.lineWidth = 1
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shapeLayer.lineJoin = .round
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shapeLayer.lineDashPattern = [NSNumber(value: Float(lineLength)), NSNumber(value: Float(lineSpacing))]
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let path = UIBezierPath(roundedRect: view.bounds, cornerRadius: cornerRadius)
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shapeLayer.path = path.cgPath
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// 先移除旧的虚线层（避免重复添加）
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view.layer.sublayers?.removeAll(where: { $0.name == "DashedBorder" })
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view.layer.addSublayer(shapeLayer)
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}
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}
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extension UIView{
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/// 将一个矩形区域从指定视图坐标系转换到当前视图或窗口坐标系
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///
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/// 使用方法：
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/// ```
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/// CGRect rect = [self.view convertRect:_button.frame fromViewOrWindow:_button.superview];
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/// ```
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///
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/// button的frame是相对于其superview来确定的，frame确定了button在其superview的位置和大小
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///
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/// 一般来说，toView方法中，消息的接收者为被转换的frame所在的控件的superview；fromView方法中，消息的接收者为即将转到的目标view.
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///
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/// - Parameters:
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/// - rect: 矩形区域
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/// - view: 指定视图或窗口
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/// - Returns: 当前坐标系的矩形区域
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func convertRect(rect: CGRect, fromViewOrWindow view: UIView?) -> CGRect {
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guard let view = view else {
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if isKind(of: UIWindow.self) {
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return (self as! UIWindow).convert(rect, from: nil)
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} else {
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return convert(rect, from: nil)
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}
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}
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if let from = view.isKind(of: UIWindow.self) ? (view as! UIWindow) : view.window,
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let to = isKind(of: UIWindow.self) ? (self as! UIWindow) : window, from != to {
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var r = rect
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r = from.convert(r, from: view)
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r = to.convert(r, from: from)
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r = convert(r, from: to)
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return r
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} else {
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return convert(rect, from: view)
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}
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}
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}
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extension UIView{
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/// 扩展UIView增加抖动方法
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///
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/// - Parameters:
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/// - isVertical: 抖动方向（默认是水平方向）
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/// - times: 抖动次数（默认5次）
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/// - interval: 每次抖动时间（默认0.1秒）
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/// - delta: 抖动偏移量（默认2）
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/// - completion: 抖动动画结束后的回调
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public func shake(_ isVertical: Bool = false,
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_ times: Int = 5,
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_ interval: TimeInterval = 0.1,
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_ delta: CGFloat = 2,
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_ completion: (() -> ())? = nil) {
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// 播放动画
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UIView.animate(withDuration: interval) {
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var transform = CGAffineTransform(translationX: 0, y: delta)
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if isVertical == true {
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transform = CGAffineTransform(translationX: delta, y: 0)
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}
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self.layer.setAffineTransform(transform)
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} completion: {_ in
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// 如果当前是最后一次抖动，则将位置还原，并调用完成回调函数
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if (times == 0) {
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UIView.animate(withDuration: interval) {
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self.layer.setAffineTransform(CGAffineTransform.identity)
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} completion: { _ in
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completion?()
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}
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}else {
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// 如果当前不是最后一次抖动，则继续播放动画（总次数减1，偏移位置变成相反的）
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self.shake(isVertical, times - 1, interval, -delta, completion)
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}
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}
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}
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}
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extension UIView {
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//将当前视图转为UIImage
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func asImage() -> UIImage {
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let renderer = UIGraphicsImageRenderer(bounds: bounds)
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return renderer.image { rendererContext in
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layer.render(in: rendererContext.cgContext)
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}
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}
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/// 获取视图在屏幕上的绝对坐标（相对于整个屏幕）
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var screenRect: CGRect? {
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guard let window = self.window else { return nil }
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return self.superview?.convert(self.frame, to: window)
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}
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}
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