117 lines
4.0 KiB
Swift
117 lines
4.0 KiB
Swift
import UIKit
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class XdBlur {
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/// 为视图添加背景模糊效果
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/// - Parameters:
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/// - view: 需要添加模糊效果的目标视图
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/// - style: 模糊样式（Light, Dark, ExtraLight）
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/// - intensity: 模糊强度，范围 0-1
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/// - backgroundColor: 可选的背景颜色叠加
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static func applyBlur(
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to view: UIView,
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style: UIBlurEffect.Style = .light,
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intensity: CGFloat = 0.8,
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backgroundColor: UIColor? = nil
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) {
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// 移除之前可能存在的模糊效果
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view.subviews
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.filter { $0 is UIVisualEffectView }
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.forEach { $0.removeFromSuperview() }
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// 创建模糊效果
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let blurEffect = UIBlurEffect(style: style)
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let blurView = UIVisualEffectView(effect: blurEffect)
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// 调整模糊强度
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if #available(iOS 13.0, *) {
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let vibrancyView = UIVisualEffectView(effect:
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UIVibrancyEffect(blurEffect: blurEffect, style: .fill)
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)
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blurView.contentView.addSubview(vibrancyView)
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}
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// 设置frame与目标视图一致
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blurView.frame = view.bounds
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blurView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
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// 设置透明度控制模糊强度
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blurView.alpha = intensity
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// 如果需要叠加背景色
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if let backgroundColor = backgroundColor {
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let colorView = UIView(frame: blurView.bounds)
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colorView.backgroundColor = backgroundColor
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colorView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
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blurView.contentView.addSubview(colorView)
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}
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// 插入到视图底部
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view.insertSubview(blurView, at: 0)
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}
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/// 移除背景模糊效果
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/// - Parameter view: 需要移除模糊效果的视图
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static func removeBlur(from view: UIView) {
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view.subviews
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.filter { $0 is UIVisualEffectView }
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.forEach { $0.removeFromSuperview() }
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}
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/// 为视图添加自定义高斯模糊效果
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/// - Parameters:
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/// - view: 目标视图
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/// - radius: 模糊半径
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/// - tintColor: 颜色叠加
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static func applyCustomBlur(
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to view: UIView,
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radius: CGFloat = 10,
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tintColor: UIColor? = nil
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) {
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// 创建模糊效果
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let blurEffect = UIBlurEffect(style: .light)
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let blurView = UIVisualEffectView(effect: blurEffect)
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// 应用额外的模糊
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let vibrancyView = UIVisualEffectView(effect:
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UIVibrancyEffect(blurEffect: blurEffect)
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)
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blurView.frame = view.bounds
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blurView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
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// 添加自定义颜色叠加
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if let tintColor = tintColor {
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let colorView = UIView(frame: blurView.bounds)
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colorView.backgroundColor = tintColor
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colorView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
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blurView.contentView.addSubview(colorView)
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}
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view.insertSubview(blurView, at: 0)
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}
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static func applyBlurSelf(ele: UIView ,bg:UIView, blur: CGFloat, backgroundColor: UIColor = .clear) {
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// Create snapshot of element
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UIGraphicsBeginImageContextWithOptions(ele.bounds.size, false, 0)
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ele.layer.render(in: UIGraphicsGetCurrentContext()!)
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let snapshot = UIGraphicsGetImageFromCurrentImageContext()!
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UIGraphicsEndImageContext()
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// Create blur effect
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let effectView = UIVisualEffectView(effect: UIBlurEffect(style: .light))
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effectView.frame = bg.bounds
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// Create color overlay
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let colorView = UIView(frame: bg.bounds)
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colorView.backgroundColor = backgroundColor
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colorView.alpha = blur
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// Add views to background
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bg.addSubview(effectView)
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bg.addSubview(colorView)
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// Set snapshot as background
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let imageView = UIImageView(image: snapshot)
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imageView.frame = bg.bounds
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bg.insertSubview(imageView, at: 0)
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}
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} |