如何使用 android fresco 从动画 webp 获取所有位图？

Question

如何使用 android fresco 从 webp 动画中获取所有位图的列表？

下面的代码总是returns null 而不是位图

        val imageRequest = ImageRequestBuilder
            .newBuilderWithSource(Uri.parse("https://upload.wikimedia.org/wikipedia/commons/4/41/Sunflower_from_Silesia2.jpg"))
            .build()
        val imagePipeline = Fresco.getImagePipeline()
        val dataSource = imagePipeline.fetchDecodedImage(imageRequest, this)
        dataSource.subscribe(object : BaseBitmapDataSubscriber() {
            override fun onFailureImpl(dataSource: DataSource<CloseableReference<CloseableImage>>?) {
                val m = dataSource
            }

            override fun onNewResultImpl(bitmap: Bitmap?) {
                val m = bitmap
            }
        }, CallerThreadExecutor.getInstance())

Answer 1

对于所有感兴趣的人，fresco 文档有这一行 "This subscriber doesn’t work for animated images as those can not be represented as a single bitmap."

如何使用 android fresco 从动画 webp 获取所有位图？

How to get all bitmaps from animated webp using android fresco?

android

image-processing

bitmap

webp

fresco