title: Glide loading images each time when scrolling recyclerview
body: <p>I have a <code>RecyclerView</code> and each item of <code>RecyclerView</code> is having <code>ImageView</code>.
  I am loading the image in that <code>ImageView</code> using <strong>Glide</strong>, when I scroll down the <code>RecyclerView</code> it loads images and this is fine, but when I again srcoll up the <code>RecyclerView</code> it again loads those images which are already been loaded. I do not want to load that images again which have already been loaded.</p>
  
  <p><strong>I am using the below code to load images using Glide</strong></p>
  
  <pre><code>Glide.with(mActivity)
                  .load(img.getmGridViewImageUrl())
                  .into(imageHolder.imageView);
  </code></pre>