53 lines
1.5 KiB
Swift
53 lines
1.5 KiB
Swift
//
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// PerekrestokView.swift
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// RMRPullToRefresh
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//
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// Created by Merkulov Ilya on 24.03.16.
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// Copyright © 2016 Merkulov Ilya. All rights reserved.
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//
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import UIKit
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import RMRPullToRefresh
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class PerekrestokView: RMRPullToRefreshView {
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@IBOutlet weak var logoImageView: UIImageView!
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var fromValue: CGFloat = 0.0
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class func XIB_VIEW() -> PerekrestokView? {
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let subviewArray = NSBundle.mainBundle().loadNibNamed("PerekrestokView", owner: self, options: nil)
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return subviewArray.first as? PerekrestokView
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}
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// MARK: - Private
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func angle(progress: CGFloat) -> CGFloat {
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return -CGFloat(M_PI)/progress
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}
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// MARK: - RMRPullToRefreshViewProtocol
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override func didChangeDraggingProgress(progress: CGFloat) {
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logoImageView.transform = CGAffineTransformMakeRotation(angle(progress));
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}
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override func prepareForLoadingAnimation(startProgress: CGFloat) {
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fromValue = angle(startProgress)
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}
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override func beginLoadingAnimation() {
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let rotationAnimation = CABasicAnimation(keyPath: "transform.rotation.z")
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rotationAnimation.fromValue = fromValue
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rotationAnimation.byValue = 2*M_PI
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rotationAnimation.duration = 0.9
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rotationAnimation.repeatCount = HUGE
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self.logoImageView.layer.addAnimation(rotationAnimation, forKey: "transformAnimation")
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}
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override func didEndLoadingAnimation(hidden: Bool) {
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self.logoImageView.layer.removeAnimationForKey("transformAnimation")
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}
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}
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