Show an "Loading..." image while background loading of image with Picasso

I am using Picasso for background loading of images (list view and ImagePager). I can set loading image and errorimage with Picasso, but I am unable to show a "loading in progress" Image during background loading. Has anybody an idea how to get this done? In my PagerAdapter Class I have the following method: ``` @Override public Object instantiateItem(ViewGroup container, int position) { ImageView imageView = new ImageView(context); int padding = context.getResources().getDimensionPixelSize(R.dimen.padding_medium); imageView.setPadding(padding, padding, padding, padding); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); // Set default Image before loading real image imageView.setImageResource(R.drawable.img_def); imageView.setId(imgViewId); imageView.setClickable(true); imageView.setOnClickListener(this); ((ViewPager) container).addView(imageView, 0); // Set default Image before loading real image Picasso.with(context).load(R.drawable.img_def).into(imageView); // Load real image with Picasso and show error image if failed Picasso.with(context).load(GalImgUrls[position]).error(R.drawable.no_img).into(imageView); return imageView; } ``` However, it does not show the "loading..." image. Any solutions/ideas? Thanks!