<p dir="auto">I am now developing for a new app, and I need to update the progress bar manually when loading an image. However, glide's api  seems unfriendly when I try to get the current progress.<br>
In UIL lib, I can easily set an ImageLoadingListener to do this . I try to do the same thing but not modify the glide core lib, but I found it's hard for me.<br>
So in glide lib , how can i listen to the progress of image's loading.<br>
If there's no good answer, i think i had to use rxjava or modify the glide core lib(it's terrible).<br>
Thank goodness for reading my aweful English</p>
<p dir="auto">Could tell me which api can get the progress when loading the image?thanks!</p>