44 lines
1.6 KiB
Swift
44 lines
1.6 KiB
Swift
//
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// MainScanTabItem.swift
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// suixinkan
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//
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import UIKit
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/// 主 TabBar 中间扫码核销入口。
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enum MainScanTabItem {
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/// 构建扫码 TabBarItem，点击行为由 `MainTabBarController` 拦截。
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static func makeTabBarItem() -> UITabBarItem {
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let image = makeScanImage()
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let item = UITabBarItem(title: nil, image: image, selectedImage: image)
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item.accessibilityLabel = "扫码核销"
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item.accessibilityIdentifier = "main.scan"
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return item
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}
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private static func makeScanImage() -> UIImage {
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let diameter: CGFloat = 48
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let renderer = UIGraphicsImageRenderer(size: CGSize(width: diameter, height: diameter))
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return renderer.image { _ in
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let bounds = CGRect(origin: .zero, size: CGSize(width: diameter, height: diameter))
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AppColor.primary.setFill()
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UIBezierPath(ovalIn: bounds).fill()
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let configuration = UIImage.SymbolConfiguration(pointSize: 25, weight: .semibold)
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guard let symbol = UIImage(systemName: "qrcode.viewfinder", withConfiguration: configuration) else {
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return
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}
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let image = symbol.withTintColor(.white, renderingMode: .alwaysOriginal)
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let symbolSize = CGSize(width: 28, height: 28)
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let symbolRect = CGRect(
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x: (diameter - symbolSize.width) / 2,
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y: (diameter - symbolSize.height) / 2,
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width: symbolSize.width,
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height: symbolSize.height
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)
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image.draw(in: symbolRect)
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}.withRenderingMode(.alwaysOriginal)
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}
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}
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