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SPAnimationAlpha.swift
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SPAnimationAlpha.swift
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// The MIT License (MIT)
// Copyright © 2017 Ivan Vorobei (hello@ivanvorobei.by)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
import UIKit
public class SPAnimationAlpha {
fileprivate static let durationListAnimation: TimeInterval = 0.45
fileprivate static let coefLenthForTransition: CGFloat = 2.8
fileprivate static let delayPerItem: TimeInterval = 0.09
static func hideList(_ duration: TimeInterval = durationListAnimation,
views: [UIView],
delayPerItem: TimeInterval = delayPerItem,
withComplection completion: (() -> Void)! = {}) {
var del: Double = 0
for view in views {
delay(del, closure: {
if (view == views.last) {
SPAnimation.animate(duration, animations: {
view.alpha = 0
}, withComplection: {
completion()
})
} else {
SPAnimation.animate(duration, animations: {
view.alpha = 0
})
}
})
del += delayPerItem
}
}
static func hideReverseList(_ duration: TimeInterval = durationListAnimation,
views: [UIView],
delayPerItem: TimeInterval = delayPerItem,
withComplection completion: (() -> Void)! = {}) {
var del: Double = 0
let reversedViews = views.reversed()
for view in reversedViews {
delay(del, closure: {
if (view == views.last) {
SPAnimation.animate(duration, animations: {
view.alpha = 0
}, withComplection: {
completion()
})
} else {
SPAnimation.animate(duration, animations: {
view.alpha = 0
})
}
})
del += delayPerItem
}
}
static func showList(_ duration: TimeInterval = durationListAnimation,
views: [UIView],
delayPerItem: TimeInterval = delayPerItem,
withComplection completion: (() -> Void)! = {}) {
var del: Double = 0
for view in views {
delay(del, closure: {
if (view == views.last) {
SPAnimation.animate(duration, animations: {
view.alpha = 1
}, withComplection: {
completion()
})
} else {
SPAnimation.animate(duration, animations: {
view.alpha = 1
})
}
})
del += delayPerItem
}
}
}