33 lines
974 B
Swift
33 lines
974 B
Swift
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//
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// UIScrollView.swift
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// Mastodon
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//
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// Created by sxiaojian on 2021/3/15.
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//
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import UIKit
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extension UIScrollView {
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public enum ScrollDirection {
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case top
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case bottom
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case left
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case right
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}
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public func scroll(to direction: ScrollDirection, animated: Bool) {
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let offset: CGPoint
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switch direction {
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case .top:
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offset = CGPoint(x: contentOffset.x, y: -adjustedContentInset.top)
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case .bottom:
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offset = CGPoint(x: contentOffset.x, y: max(-adjustedContentInset.top, contentSize.height - frame.height + adjustedContentInset.bottom))
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case .left:
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offset = CGPoint(x: -adjustedContentInset.left, y: contentOffset.y)
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case .right:
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offset = CGPoint(x: max(-adjustedContentInset.left, contentSize.width - frame.width + adjustedContentInset.right), y: contentOffset.y)
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}
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setContentOffset(offset, animated: animated)
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}
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}
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