import SwiftUI
import UIKit

// 包装UIImageView以支持APNG动画
struct APNGView: UIViewRepresentable {
    let imageName: String
    @Binding var isAnimating: Bool
    
    func makeUIView(context: Context) -> UIImageView {
        let imageView = UIImageView()
        
        // 从资源加载APNG
        if let image = UIImage(named: imageName) {
            imageView.image = image
            // 启用动画
            imageView.animationImages = image.images
            // 设置动画时长（根据实际帧数调整）
            imageView.animationDuration = image.duration
            // 根据isAnimating状态决定是否开始动画
            if isAnimating {
                imageView.startAnimating()
            }
        }
        
        return imageView
    }
    
    func updateUIView(_ uiView: UIImageView, context: Context) {
        // 根据isAnimating状态控制动画
        if isAnimating {
            if !uiView.isAnimating {
                uiView.startAnimating()
            }
        } else {
            uiView.stopAnimating()
        }
    }
}