title: Have ImageView draw bitmap flipped horizontal?
body: <p>I have an ImageView and a bitmap. I want the ImageView to draw the bitmap mirrored horizontally. I'm trying to do it using a matrix, like so:</p>
  
  <pre><code>ImageView iv = ...;
  Matrix matrix = new Matrix();
  iv.setScaleType(ScaleType.MATRIX);
  matrix.preScale(-1, 1);
  iv.setImageMatrix(matrix);
  </code></pre>
  
  <p>But the ImageView does not appear after using the above. If I comment out the above, it appears ok. How can I do this?</p>
  
  <p>Thanks</p>