title: setImageViewUri doesn't show picture but show background of imageview
body: <pre><code>File file = new File("/storage/emulated/0/BabyCareData/photo/20160229_161413.jpg");
  if (file.exists()) {
      views.setImageViewUri(R.id.imageAvatar, Uri.parse(file.getPath()));             
  } 
  </code></pre>
  
  <p>I have check the path and the uri,it is right.<code>setImageViewUri</code>doesn't show picture but show a white screen(background is white).</p>