107 lines
4.5 KiB
Swift
107 lines
4.5 KiB
Swift
//
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// PageViewManager.swift
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// DNSPageView
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//
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// Created by Daniels on 2018/2/24.
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// Copyright © 2018 Daniels. All rights reserved.
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//
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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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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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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
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// THE SOFTWARE.
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//
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import UIKit
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public protocol PageViewContainer: AnyObject {
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func updateCurrentIndex(_ index: Int)
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}
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/// 通过这个类创建的 pageView，titleView 和 contentView 的 frame 是不确定的，适合于 titleView 和 contentView 分开布局的情况
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/// 需要给 titleView 和 contentView 布局，可以使用 frame 或者 Autolayout
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public class PageViewManager {
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private (set) public var style: PageStyle
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private (set) public var titles: [String]
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private (set) public var childViewControllers: [UIViewController]
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private (set) public var currentIndex: Int
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public let titleView: PageTitleView
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public let contentView: PageContentView
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public init(style: PageStyle,
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titles: [String],
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childViewControllers: [UIViewController],
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currentIndex: Int = 0,
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titleView: PageTitleView? = nil,
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contentView: PageContentView? = nil) {
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assert(titles.count == childViewControllers.count,
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"titles.count != childViewControllers.count")
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assert(currentIndex >= 0 && currentIndex < titles.count,
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"currentIndex < 0 or currentIndex >= titles.count")
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self.style = style
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self.titles = titles
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self.childViewControllers = childViewControllers
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self.currentIndex = style.isRTL ? titles.count - currentIndex - 1 : currentIndex
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if let titleView = titleView {
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self.titleView = titleView
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self.titleView.configure(titles: titles, style: style, currentIndex: currentIndex)
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} else {
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self.titleView = PageTitleView(frame: .zero, style: style, titles: titles, currentIndex: currentIndex)
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}
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if let contentView = contentView {
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self.contentView = contentView
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self.contentView.configure(childViewControllers: childViewControllers, style: style, currentIndex: currentIndex)
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} else {
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self.contentView = PageContentView(frame: .zero, style: style, childViewControllers: childViewControllers, currentIndex: currentIndex)
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}
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self.titleView.container = self
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self.contentView.container = self
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self.titleView.delegate = self.contentView
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self.contentView.delegate = self.titleView
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}
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public func configure(titles: [String]? = nil,
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childViewControllers: [UIViewController]? = nil,
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style: PageStyle? = nil) {
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if let titles = titles {
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self.titles = titles
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}
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if let childViewControllers = childViewControllers {
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self.childViewControllers = childViewControllers
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}
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if let style = style {
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self.style = style
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}
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assert(self.titles.count == self.childViewControllers.count,
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"titles.count != childViewControllers.count")
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assert(currentIndex >= 0 && currentIndex < self.titles.count,
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"currentIndex < 0 or currentIndex >= titles.count")
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titleView.configure(titles: titles, style: style)
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contentView.configure(childViewControllers: childViewControllers, style: style)
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}
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}
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extension PageViewManager: PageViewContainer {
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public func updateCurrentIndex(_ index: Int) {
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currentIndex = index
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}
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}
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