结果回调(从谷歌驱动器下载多个图像)。

I am working on Google Drive Api. I want to download images from Google drive. Below is the code which is working but the files.open() is called when the loop finishes. Suppose the count is 3, the loop will complete looping first and after that files.open() will be called 3 times. Because of this I am not able to set the data in my model class. It takes only last value. (Edited)I am working on Google Drive Api. I want to dow