Facebook DraweeView - 从缓存中删除图像

Question

我正在尝试从Facebook DraweeView中的缓存中删除图像。它不是删除图像，我无法理解为什么

Fresco.getImagePipeline().evictFromMemoryCache(uri1);
Fresco.getImagePipelineFactory().getImagePipeline().evictFromMemoryCache(uri1);
Fresco.getImagePipelineFactory().getMainDiskStorageCache().remove(new SimpleCacheKey(uri1.toString()));
Fresco.getImagePipelineFactory().getSmallImageDiskStorageCache().remove(new SimpleCacheKey(uri1.toString()));