我想使用Picasso库预取图像。在毕加索的文档中,我找到了description for fetch
public void fetch():
Asynchronously fulfills the request without a ImageView or Target. This is useful when you want to warm up the cache with an image.
Note: It is safe to invoke this method from any thread.
对于进入(...),行为显然是毕加索从缓存中获取图像(如果仍然可用)。 但 当我为同一个图片/网址多次调用fetch时会发生什么?是重新获取图像(来自网络)还是Picasso在缓存中找到图像?