blocking ui thread

[lulusahululu]

while list of images loading progress Bar is stop ...
i want load image in different thread

   val hierarchyBuilder =
            GenericDraweeHierarchyBuilder.newInstance(resources)
            .setProgressBarImage(R.drawable.progress)
       


```        val imageViewer =
            ImageViewer
                .Builder(this, listimages)
                .setCustomDraweeHierarchyBuilder(hierarchyBuilder)
                .setBackgroundColor(Color.WHITE)
                .allowSwipeToDismiss(false)
                .hideStatusBar(false)
                .build()
                .show()