DemoRecyclerPagerAdapterViewHolder.java 文件源码

public void setPictureUrl(final String imageUrl) {
    progressBar.setVisibility(View.VISIBLE);
    Picasso.with(image.getContext())
            .load(imageUrl)
            .into(image, new Callback() {
                @Override
                public void onSuccess() {
                    progressBar.setVisibility(View.GONE);
                }

                @Override
                public void onError() {
                    progressBar.setVisibility(View.GONE);
                    image.setImageResource(android.R.drawable.ic_menu_gallery);
                }
            });
}