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111 lines
4.4 KiB
111 lines
4.4 KiB
// SegmentedPagerTabStripViewController.swift
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// XLPagerTabStrip ( https://github.com/xmartlabs/XLPagerTabStrip )
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//
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// Copyright (c) 2017 Xmartlabs ( http://xmartlabs.com )
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//
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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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import Foundation
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public struct SegmentedPagerTabStripSettings {
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public struct Style {
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public var segmentedControlColor: UIColor?
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}
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public var style = Style()
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}
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open class SegmentedPagerTabStripViewController: PagerTabStripViewController, PagerTabStripDataSource, PagerTabStripDelegate {
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@IBOutlet weak public var segmentedControl: UISegmentedControl!
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open var settings = SegmentedPagerTabStripSettings()
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public override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
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super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
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pagerBehaviour = PagerTabStripBehaviour.common(skipIntermediateViewControllers: true)
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delegate = self
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datasource = self
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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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pagerBehaviour = PagerTabStripBehaviour.common(skipIntermediateViewControllers: true)
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delegate = self
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datasource = self
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}
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private(set) var shouldUpdateSegmentedControl = true
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open override func viewDidLoad() {
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super.viewDidLoad()
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let auxSegmentedControl = segmentedControl ?? UISegmentedControl()
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segmentedControl = auxSegmentedControl
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if segmentedControl.superview == nil {
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navigationItem.titleView = segmentedControl
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}
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segmentedControl.tintColor = settings.style.segmentedControlColor ?? segmentedControl.tintColor
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segmentedControl.addTarget(self, action: #selector(SegmentedPagerTabStripViewController.segmentedControlChanged(_:)), for: .valueChanged)
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reloadSegmentedControl()
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}
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open override func reloadPagerTabStripView() {
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super.reloadPagerTabStripView()
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if isViewLoaded {
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reloadSegmentedControl()
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}
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}
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func reloadSegmentedControl() {
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segmentedControl.removeAllSegments()
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for (index, item) in viewControllers.enumerated() {
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let child = item as! IndicatorInfoProvider // swiftlint:disable:this force_cast
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if let image = child.indicatorInfo(for: self).image {
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segmentedControl.insertSegment(with: image, at: index, animated: false)
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} else {
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segmentedControl.insertSegment(withTitle: child.indicatorInfo(for: self).title, at: index, animated: false)
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}
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}
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segmentedControl.selectedSegmentIndex = currentIndex
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}
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@objc func segmentedControlChanged(_ sender: UISegmentedControl) {
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let index = sender.selectedSegmentIndex
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updateIndicator(for: self, fromIndex: currentIndex, toIndex: index)
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shouldUpdateSegmentedControl = false
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moveToViewController(at: index)
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}
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// MARK: - PagerTabStripDelegate
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open func updateIndicator(for viewController: PagerTabStripViewController, fromIndex: Int, toIndex: Int) {
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if shouldUpdateSegmentedControl {
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segmentedControl.selectedSegmentIndex = toIndex
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}
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}
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// MARK: - UIScrollViewDelegate
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open override func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) {
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super.scrollViewDidEndScrollingAnimation(scrollView)
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shouldUpdateSegmentedControl = true
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}
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}
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