How to refresh image view immediately

Question

In my android app, I download an image from the cloud. The download is performed in a thread and in that same thread I also set an image view with the newly downloaded image

Answer 1

Invalidate doesn't work. Changing the uri or url or the path of the image temporarily and changing back to the required path works. For example, if i have

image_url="myhost/img.png";
himg.setImageURI(image_url, imageLoader);

I can refresh this as:

 himg.setImageURI(null, imageLoader);
 himg.setImageURI(image_url, imageLoader)