64 lines
2.0 KiB
Swift
64 lines
2.0 KiB
Swift
//
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// JXSegmentedIndicatorGradientLineView.swift
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// JXSegmentedView
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//
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// Created by jiaxin on 2020/7/6.
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// Copyright © 2020 jiaxin. All rights reserved.
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//
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import UIKit
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/// 会无视indicatorColor属性，以gradientColors为准
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open class JXSegmentedIndicatorGradientLineView: JXSegmentedIndicatorLineView {
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open var colors = [UIColor]()
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open var startPoint = CGPoint.zero
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open var endPoint = CGPoint(x: 1, y: 0)
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open var locations: [NSNumber]?
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public let gradientLayer = CAGradientLayer()
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open override func commonInit() {
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super.commonInit()
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layer.masksToBounds = true
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layer.addSublayer(gradientLayer)
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}
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open override func refreshIndicatorState(model: JXSegmentedIndicatorSelectedParams) {
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super.refreshIndicatorState(model: model)
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backgroundColor = .clear
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CATransaction.begin()
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CATransaction.setDisableActions(true)
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gradientLayer.frame = bounds
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gradientLayer.colors = colors.map { $0.cgColor }
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gradientLayer.startPoint = startPoint
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gradientLayer.endPoint = endPoint
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gradientLayer.locations = locations
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CATransaction.commit()
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}
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open override func contentScrollViewDidScroll(model: JXSegmentedIndicatorTransitionParams) {
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super.contentScrollViewDidScroll(model: model)
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guard canHandleTransition(model: model) else {
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return
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}
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CATransaction.begin()
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CATransaction.setDisableActions(true)
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gradientLayer.frame = bounds
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CATransaction.commit()
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}
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open override func selectItem(model: JXSegmentedIndicatorSelectedParams) {
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super.selectItem(model: model)
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let targetWidth = getIndicatorWidth(itemFrame: model.currentSelectedItemFrame, itemContentWidth: model.currentItemContentWidth)
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CATransaction.begin()
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CATransaction.setAnimationDuration(scrollAnimationDuration)
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CATransaction.setAnimationTimingFunction(.init(name: .easeOut))
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gradientLayer.frame.size.width = targetWidth
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CATransaction.commit()
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}
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}
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