title: Is there a way to see what is drawn on canvas drawLines _while drawing_ in foreground and is it possible to covert the drawing period to video?
body: <p>I have a custom view that allow me to draw lines on canvas and it works fine .
  what I want is to see the drawing while its drawing in the foreground and make the user control the speed of drawing and can it be convert the drawing period to video ?</p>
  <p>my code for drawing lines is</p>
  <pre><code>public   ArrayList&lt;BlockDraw&gt; drawers = new ArrayList&lt;&gt;();
  public void draw(Canvas canvas) {
          for (BlockDraw blockDraw : drawers) {
              canvas.drawLines(blockDraw.list.pointlist, 0, blockDraw.list.count, blockDraw.paint);
          }} 
  </code></pre>