无法在 Xcode 游乐场上 运行 SAConfettiView

Question

我正在尝试使 SAConfettiView 框架在 Xcode 操场上工作。虽然，当我使用上面的代码时，五彩纸屑动画没有出现。

import UIKit
import PlaygroundSupport

var view = UIView(frame: UIScreen.main.bounds)
var confettiView: SAConfettiView!
confettiView = SAConfettiView(frame: view.bounds)
confettiView.type = .Star
view.addSubview(confettiView)
confettiView.startConfetti()
view.backgroundColor = .red
PlaygroundPage.current.liveView = view
PlaygroundPage.current.needsIndefiniteExecution = true

我做错了什么？

Download playground here

Answer 1

这是因为 Sources 文件夹中的 ConfettiView.swift 没有正确加载图像。

用这个替换他们的 image(for type: ConfettiType) -> UIImage? 方法：

func image(for type: ConfettiType) -> UIImage? {
    var fileName: String

    switch type {
    case .Confetti:
        fileName = "confetti"
    case .Triangle:
        fileName = "triangle"
    case .Star:
        fileName = "star"
    case .Diamond:
        fileName = "diamond"
    case let .Image(customImage):
        return customImage
    }

    guard let url = Bundle.main.url(forResource: fileName, withExtension: "png"),
        let data = try? Data(contentsOf: url) else
    {
        return nil
    }

    return UIImage(data: data)
}

我使用 Bundle.main.url 正确加载五彩纸屑图像。