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72 lines
2.9 KiB
72 lines
2.9 KiB
// |
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// NVActivityIndicatorAnimationAudioEqualizer.swift |
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// NVActivityIndicatorView |
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// |
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// The MIT License (MIT) |
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// Copyright (c) 2016 Vinh Nguyen |
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// Permission is hereby granted, free of charge, to any person obtaining a copy |
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// of this software and associated documentation files (the "Software"), to deal |
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// in the Software without restriction, including without limitation the rights |
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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// copies of the Software, and to permit persons to whom the Software is |
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// furnished to do so, subject to the following conditions: |
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// The above copyright notice and this permission notice shall be included in all |
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// copies or substantial portions of the Software. |
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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// SOFTWARE. |
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// |
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#if canImport(UIKit) |
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import UIKit |
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class NVActivityIndicatorAnimationAudioEqualizer: NVActivityIndicatorAnimationDelegate { |
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func setUpAnimation(in layer: CALayer, size: CGSize, color: UIColor) { |
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let lineSize = size.width / 9 |
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let x = (layer.bounds.size.width - lineSize * 7) / 2 |
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let y = (layer.bounds.size.height - size.height) / 2 |
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let duration: [CFTimeInterval] = [4.3, 2.5, 1.7, 3.1] |
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let values = [0, 0.7, 0.4, 0.05, 0.95, 0.3, 0.9, 0.4, 0.15, 0.18, 0.75, 0.01] |
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// Draw lines |
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for i in 0 ..< 4 { |
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let animation = CAKeyframeAnimation() |
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animation.keyPath = "path" |
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animation.isAdditive = true |
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animation.values = [] |
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for j in 0 ..< values.count { |
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let heightFactor = values[j] |
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let height = size.height * CGFloat(heightFactor) |
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let point = CGPoint(x: 0, y: size.height - height) |
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let path = UIBezierPath(rect: CGRect(origin: point, size: CGSize(width: lineSize, height: height))) |
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animation.values?.append(path.cgPath) |
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} |
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animation.duration = duration[i] |
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animation.repeatCount = HUGE |
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animation.isRemovedOnCompletion = false |
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let line = NVActivityIndicatorShape.line.layerWith(size: CGSize(width: lineSize, height: size.height), color: color) |
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let frame = CGRect(x: x + lineSize * 2 * CGFloat(i), |
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y: y, |
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width: lineSize, |
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height: size.height) |
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line.frame = frame |
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line.add(animation, forKey: "animation") |
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layer.addSublayer(line) |
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} |
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} |
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} |
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#endif
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