title: How to TOP CROP Image using PhotoView Android?
body: <p>I have 1 ImageView with layout_width &amp; layout_height is match_parent, two of them is screen width and height size. I need display photo to fill full width and when image is higher than ImageView height, it can be scroll up and down. I'm using PhotoView library to zoom, scroll, tap... now i'm using centerCrop scale type but it is not solution i need. It show a part of center image and i need scroll up to view from beginning.</p>
  
  <p>I tried lot of custom view extended ImageView to display Top Crop style but when i touch to image, it changed to default PhotoView scale type. It only work when not use PhotoViewAttacher</p>
  
  <p>How i can make a Top Crop and scroll + zoom + touch... image by using PhotoView library ?</p>