使用swift playground能接受的代码,制作一个表情生成器!(swift编程语言!)
时间: 2024-09-28 17:09:50 浏览: 42
swift-这是一个Swiftplayground解释了如何创建一个微小的编程语言叫Mu
在Swift Playground中创建一个简单的表情生成器,你可以使用Core Graphics框架来绘制基本的表情图标,并结合随机数或用户输入来动态生成。下面是一个基础的示例,演示如何创建一个笑脸和哭泣脸:
```swift
import UIKit
// 定义表情视图类
class EmojiView: UIView {
private let smileyPath = UIBezierPath(rect: CGRect(x: 0, y: 0, width: 50, height: 50))
private let sadPath = UIBezierPath(rect: CGRect(x: 0, y: 25, width: 50, height: 50))
override init(frame: CGRect) {
super.init(frame: frame)
configurePaths()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
configurePaths()
}
func configurePaths() {
// 设置路径颜色
UIColor.black.setStroke()
// 笑脸路径
smileyPath.move(to: CGPoint(x: 25, y: 0))
smileyPath.addLine(to: CGPoint(x: 25, y: 50))
smileyPath.addLine(to: CGPoint(x: 0, y: 25))
smileyPath.addLine(to: CGPoint(x: 50, y: 25))
smileyPath.close()
// 哭脸路径
sadPath.move(to: CGPoint(x: 25, y: 0))
sadPath.addLine(to: CGPoint(x: 25, y: 50))
sadPath.addLine(to: CGPoint(x: 0, y: 37.5))
sadPath.addLine(to: CGPoint(x: 50, y: 37.5))
sadPath.close()
}
}
// 在Playground中生成表情
let emojiView = EmojiView(frame: CGRect(x: 50, y: 50, width: 50, height: 50))
emojiView.isHidden = true // 隐藏初始状态
func switchEmoji() {
let randomIndex = Int.random(in: 0..<2) // 0 for smiley, 1 for sad
if randomIndex == 0 {
emojiView.path = emojiView.smileyPath.cgPath
emojiView.isHidden = false
} else {
emojiView.path = emojiView.sadPath.cgPath
}
}
switchEmoji() // 调用函数切换表情
```
在这个例子中,我们首先创建了一个`EmojiView`类,它有两个路径(smileyPath和sadPath),代表笑脸和哭脸。然后我们在Playground中实例化这个视图并隐藏它。通过`switchEmoji()`函数,我们可以随机选择路径来改变表情。
阅读全文