38 lines
1.1 KiB
Swift
38 lines
1.1 KiB
Swift
//
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// UITableView-Extensions.swift
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// RSCoreiOS
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//
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// Created by Maurice Parker on 9/6/19.
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// Copyright © 2019 Ranchero Software, LLC. All rights reserved.
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//
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import UIKit
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extension UITableView {
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/**
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Selects a row and scrolls it to the middle if it is not visible
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*/
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public func selectRowAndScrollIfNotVisible(at indexPath: IndexPath, animations: Animations) {
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selectRow(at: indexPath, animated: animations.contains(.select), scrollPosition: .none)
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if let visibleIndexPaths = indexPathsForRows(in: safeAreaLayoutGuide.layoutFrame) {
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if !(visibleIndexPaths.contains(indexPath) && cellCompletelyVisable(indexPath)) {
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selectRow(at: indexPath, animated: animations.contains(.scroll), scrollPosition: .middle)
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}
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}
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}
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func cellCompletelyVisable(_ indexPath: IndexPath) -> Bool {
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let rect = rectForRow(at: indexPath)
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return safeAreaLayoutGuide.layoutFrame.contains(rect)
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}
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public func middleVisibleRow() -> IndexPath? {
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if let visibleIndexPaths = indexPathsForRows(in: safeAreaLayoutGuide.layoutFrame), visibleIndexPaths.count > 2 {
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return visibleIndexPaths[visibleIndexPaths.count / 2]
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}
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return nil
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}
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}
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