useAnimatedImageValue

@share/components/Video.tsx

@@ -1,11 +1,11 @@
-import { Image, type ImageRef } from 'expo-image'
-import { memo, useEffect, useRef, useState } from 'react'
+import { memo, useEffect, useState } from 'react'
 import { type ViewStyle } from 'react-native'
-import { useSharedValue } from 'react-native-reanimated'
+import { useDerivedValue, useSharedValue } from 'react-native-reanimated'
 
 import {
   Canvas,
-  Image,
+  Image as SkiaImage,
+  useAnimatedImageValue,
   useImage,
   useVideo
 } from "@shopify/react-native-skia";
@@ -17,12 +17,13 @@ type Props = {
   style?: ViewStyle
   width?: number
   autoplay?: boolean // 控制动画播放，默认 true
-} & React.ComponentProps<typeof Video>
+}
 
 // 默认宽度256半屏宽度
-const VideoBox = ({ url, needWeb = true, width = 256, style, autoplay = true, ...videoProps }: Props) => {
+const VideoBox = ({ url, needWeb = true, width = 256, style, autoplay = true }: Props) => {
   const [urlFinal, setUrlFinal] = useState('')
-  const imageRef = useRef<ImageRef>(null)
+  const pausedValue = useSharedValue(!autoplay)
+  const looping = useSharedValue(true)
 
   const createUrl = (url: string) => {
     return `https://modal-dev.bowong.cc/api/custom/video/converter/v2?media_url=${encodeURI(url)}&options=compression_level=3,quality=70,loop=true,resolution=${width}x${width},fps=24`
@@ -34,6 +35,15 @@ const VideoBox = ({ url, needWeb = true, width = 256, style, autoplay = true, ..
     return lowerUrl?.match(/\.(jpg|jpeg|png|gif|webp|bmp|tiff|svg)(\?.*)?$/i)
   }
 
+  // 检测是否为动画图片（GIF 或动画 WebP）
+  const isAnimatedImage = (u?: string | null) => {
+    if (!u) return false
+    const lowerUrl = u.toLowerCase()
+    // GIF 文件通常是动画的
+    // WebP 可能是动画的，需要通过内容判断，这里先简单判断扩展名
+    return lowerUrl.includes('.gif') || lowerUrl.includes('.webp')
+  }
+
   async function resolveRedirect(url: string) {
     const res = await fetch(url, {
       method: 'GET',
@@ -85,14 +95,8 @@ const VideoBox = ({ url, needWeb = true, width = 256, style, autoplay = true, ..
 
   // 控制动画播放/停止
   useEffect(() => {
-    if (imageRef?.current) {
-      if (autoplay) {
-        imageRef.current?.startAnimating()
-      } else {
-        imageRef.current?.stopAnimating()
-      }
-    }
-  }, [autoplay])
+    pausedValue.value = !autoplay
+  }, [autoplay, pausedValue])
 
   if (!url) return null
 
@@ -122,13 +126,25 @@ const VideoBox = ({ url, needWeb = true, width = 256, style, autoplay = true, ..
   // 判断是否为图片（需要检查原始 URL 和最终 URL）
   const shouldUseImage = isImageFile || (displayUrl ? isImg(displayUrl) : false)
 
+  // 判断是否为动画图片
+  const shouldUseAnimatedImage = shouldUseImage && isAnimatedImage(displayUrl)
+
+  // 判断是否为静态图片
+  const shouldUseStaticImage = shouldUseImage && !shouldUseAnimatedImage
+
   // 只有在明确是视频链接且不是图片时才调用 useVideo，避免触发 Skia.Video 原生异常
   const shouldUseVideo = !shouldUseImage && isVideoUrl(displayUrl)
 
   // Hooks 必须在顶层调用，不能条件调用
-  // 对于图片，使用 useImage；对于视频，使用 useVideo
+  // 对于静态图片，使用 useImage
+  // 对于动画图片，使用 useAnimatedImageValue（支持 autoplay 控制）
+  // 对于视频，使用 useVideo
   // 如果 displayUrl 为 null，hooks 会返回 null
-  const image = useImage(shouldUseImage ? displayUrl : null)
+  const staticImage = useImage(shouldUseStaticImage ? displayUrl : null)
+  const animatedImage = useAnimatedImageValue(
+    shouldUseAnimatedImage ? displayUrl : null,
+    shouldUseAnimatedImage ? pausedValue : undefined
+  )
   const videoResult = useVideo(
     shouldUseVideo ? displayUrl : null,
     {
@@ -137,38 +153,67 @@ const VideoBox = ({ url, needWeb = true, width = 256, style, autoplay = true, ..
     }
   )
 
+  // 使用 useDerivedValue 从 videoResult.currentFrame 获取当前帧
+  // 如果 videoResult 为 null，videoFrame 也会是 null
+  const videoFrame = useDerivedValue(() => {
+    return videoResult?.currentFrame.value ?? null
+  })
+
   if (!url || !displayUrl) return null
 
   const canvasStyle = style || {}
   const canvasWidth = (canvasStyle.width as number) || width
   const canvasHeight = (canvasStyle.height as number) || width
 
-  // 如果是图片且已加载
-  if (shouldUseImage && image) {
+  // 如果是静态图片且已加载
+  if (shouldUseStaticImage && staticImage) {
     return (
-      <Image
-        cachePolicy="disk"
-        source={{ uri: url }}
-        style={style as any}
-        transition={{ duration: 200, effect: 'cross-dissolve' }}
-      />
+      <Canvas style={[{ width: canvasWidth, height: canvasHeight }, canvasStyle]}>
+        <SkiaImage
+          image={staticImage}
+          x={0}
+          y={0}
+          width={canvasWidth}
+          height={canvasHeight}
+          fit="cover"
+        />
+      </Canvas>
     )
   }
 
-  return (
-    // 移除 key 避免组件重建导致闪烁，使用 transition 实现平滑切换
-    <Image
-      ref={imageRef}
-      // 只使用 disk 缓存，减少内存占用
-      cachePolicy="disk"
-      // 添加 recyclingKey 帮助内存回收
-      recyclingKey={urlFinal}
-      source={{ uri: urlFinal }}
-      style={style as any}
-      autoplay={autoplay}
-      transition={{ duration: 200, effect: 'cross-dissolve' }}
-    />
-  )
+  // 如果是动画图片（GIF 或动画 WebP）
+  if (shouldUseAnimatedImage && animatedImage) {
+    return (
+      <Canvas style={[{ width: canvasWidth, height: canvasHeight }, canvasStyle]}>
+        <SkiaImage
+          image={animatedImage}
+          x={0}
+          y={0}
+          width={canvasWidth}
+          height={canvasHeight}
+          fit="cover"
+        />
+      </Canvas>
+    )
+  }
+
+  // 如果是视频，使用 currentFrame SharedValue
+  if (shouldUseVideo && videoResult && videoFrame) {
+    return (
+      <Canvas style={[{ width: canvasWidth, height: canvasHeight }, canvasStyle]}>
+        <SkiaImage
+          image={videoFrame}
+          x={0}
+          y={0}
+          width={canvasWidth}
+          height={canvasHeight}
+          fit="cover"
+        />
+      </Canvas>
+    )
+  }
+
+  return null
 }
 
 export default memo(VideoBox)