downloadProgress block in downlo
2019-01-22 本文已影响9人
胡萝卜须摇头玩
The reasoning behind it would be that there is no "content-length" header and thus there can not be a fractionCompleted value, when the total number of bytes is unknown.
eg:
Image url: https://gratisography.com/fullsize/gratisography-cash-bunny.jpg