将文本添加到UIImage...Wrong spot

import UIKit

func addTextToImage(image: UIImage, text: String, textColor: UIColor, textFont: UIFont, textPosition: CGPoint) -> UIImage? {
    // 创建一个可编辑的图形上下文
    UIGraphicsBeginImageContextWithOptions(image.size, false, 0.0)
    
    // 在图形上下文中绘制UIImage对象
    image.draw(in: CGRect(x: 0, y: 0, width: image.size.width, height: image.size.height))
    
    // 设置文本属性
    let textAttributes = [
        NSAttributedString.Key.font: textFont,
        NSAttributedString.Key.foregroundColor: textColor
    ]
    
    // 在指定位置绘制文本
    let textSize = text.size(withAttributes: textAttributes)
    let textRect = CGRect(x: textPosition.x, y: textPosition.y, width: textSize.width, height: textSize.height)
    text.draw(in: textRect, withAttributes: textAttributes)
    
    // 从图形上下文中获取新的UIImage对象
    let newImage = UIGraphicsGetImageFromCurrentImageContext()
    
    // 结束图形上下文
    UIGraphicsEndImageContext()
    
    return newImage
}

// 使用示例
let originalImage = UIImage(named: "original_image.jpg")
let text = "Hello, World!"
let textColor = UIColor.white
let textFont = UIFont.systemFont(ofSize: 24)
let textPosition = CGPoint(x: 50, y: 50)

if let modifiedImage = addTextToImage(image: originalImage, text: text, textColor: textColor, textFont: textFont, textPosition: textPosition) {
    // 使用修改后的图片
    // ...
}