109 lines
4.6 KiB
Swift
109 lines
4.6 KiB
Swift
//
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// JXSegmentedIndicatorBaseView.swift
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// JXSegmentedView
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//
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// Created by jiaxin on 2018/12/26.
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// Copyright © 2018 jiaxin. All rights reserved.
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//
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import UIKit
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public enum JXSegmentedIndicatorPosition {
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case top
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case bottom
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case center
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}
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open class JXSegmentedIndicatorBaseView: UIView, JXSegmentedIndicatorProtocol {
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/// 默认JXSegmentedViewAutomaticDimension（与cell的宽度相等）。内部通过getIndicatorWidth方法获取实际的值
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open var indicatorWidth: CGFloat = JXSegmentedViewAutomaticDimension
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open var indicatorWidthIncrement: CGFloat = 0 //指示器的宽度增量。比如需求是指示器宽度比cell宽度多10 point。就可以将该属性赋值为10。最终指示器的宽度=indicatorWidth+indicatorWidthIncrement
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/// 默认JXSegmentedViewAutomaticDimension（与cell的高度相等）。内部通过getIndicatorHeight方法获取实际的值
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open var indicatorHeight: CGFloat = JXSegmentedViewAutomaticDimension
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/// 默认JXSegmentedViewAutomaticDimension （等于indicatorHeight/2）。内部通过getIndicatorCornerRadius方法获取实际的值
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open var indicatorCornerRadius: CGFloat = JXSegmentedViewAutomaticDimension
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/// 指示器的颜色
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open var indicatorColor: UIColor = .red
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/// 指示器的位置，top、bottom、center
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open var indicatorPosition: JXSegmentedIndicatorPosition = .bottom
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/// 垂直方向偏移，指示器默认贴着底部或者顶部，verticalOffset越大越靠近中心。
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open var verticalOffset: CGFloat = 0
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/// 手势滚动、点击切换的时候，是否允许滚动。
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open var isScrollEnabled: Bool = true
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/// 是否需要将当前的indicator的frame转换到cell。辅助JXSegmentedTitleDataSourced的isTitleMaskEnabled属性使用。
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/// 如果添加了多个indicator，仅能有一个indicator的isIndicatorConvertToItemFrameEnabled为true。
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/// 如果有多个indicator的isIndicatorConvertToItemFrameEnabled为true，则以最后一个isIndicatorConvertToItemFrameEnabled为true的indicator为准。
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open var isIndicatorConvertToItemFrameEnabled: Bool = true
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/// 点击选中时的滚动动画时长
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open var scrollAnimationDuration: TimeInterval = 0.25
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/// 指示器的宽度是否跟随item的内容变化（而不是跟着cell的宽度变化）。indicatorWidth=JXSegmentedViewAutomaticDimension才能生效
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open var isIndicatorWidthSameAsItemContent = false
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public override init(frame: CGRect) {
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super.init(frame: frame)
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commonInit()
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}
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required public init?(coder aDecoder: NSCoder) {
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super.init(coder: aDecoder)
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commonInit()
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}
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open func commonInit() {
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}
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public func getIndicatorCornerRadius(itemFrame: CGRect) -> CGFloat {
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if indicatorCornerRadius == JXSegmentedViewAutomaticDimension {
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return getIndicatorHeight(itemFrame: itemFrame)/2
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}
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return indicatorCornerRadius
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}
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public func getIndicatorWidth(itemFrame: CGRect, itemContentWidth: CGFloat) -> CGFloat {
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if indicatorWidth == JXSegmentedViewAutomaticDimension {
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if isIndicatorWidthSameAsItemContent {
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return itemContentWidth + indicatorWidthIncrement
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}else {
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return itemFrame.size.width + indicatorWidthIncrement
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}
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}
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return indicatorWidth + indicatorWidthIncrement
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}
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public func getIndicatorHeight(itemFrame: CGRect) -> CGFloat {
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if indicatorHeight == JXSegmentedViewAutomaticDimension {
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return itemFrame.size.height
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}
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return indicatorHeight
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}
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public func canHandleTransition(model: JXSegmentedIndicatorTransitionParams) -> Bool {
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if model.percent == 0 || !isScrollEnabled {
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//model.percent等于0时不需要处理，会调用selectItem(model: JXSegmentedIndicatorParamsModel)方法处理
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//isScrollEnabled为false不需要处理
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return false
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}
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return true
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}
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public func canSelectedWithAnimation(model: JXSegmentedIndicatorSelectedParams) -> Bool {
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if isScrollEnabled && (model.selectedType == .click || model.selectedType == .code) {
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//允许滚动且选中类型是点击或代码选中，才进行动画过渡
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return true
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}
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return false
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}
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//MARK: - JXSegmentedIndicatorProtocol
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open func refreshIndicatorState(model: JXSegmentedIndicatorSelectedParams) {
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}
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open func contentScrollViewDidScroll(model: JXSegmentedIndicatorTransitionParams) {
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}
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open func selectItem(model: JXSegmentedIndicatorSelectedParams) {
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}
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}
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