I have activity that load's image from server into imageview. Image is displayed after it's fully loaded.
What I want to do is while image is being loaded display it first in low, than medium, and at the end high quality (some images are big). I have no idea how this thing is called and what to google, so any help is appreciated.
Loading an image like this is called progressive loading, it is even part of the JPEG standard.
Another possible search term might be interlacing.
It is certainly possible to create the image in progressive qualities from the same stream though some clever technical co-operation from both sides would be nessecary.
Are you grabbing pictures from a server in your control or from other url's?
If you control the server you could query a php script with image quality parameters and get them in succession though personally I think that's a waste of bandwidth.
Why not just indicate the image is loading and put a place holder image, and when the high quality image is downloaded just replace it?
I'm sorry i couldn't help you by telling you how to do it the first way although it's something I may try to implement myself in some spare time.
My finding is that iOS can progressively decode & render Progressive JPEG with NYXImagesKit (see How do I display a progressive JPEG in an UIImageView while it is being downloaded? ), but Android doesn't seem to have a library like that.
