how to rotate a bitmap 90 degrees
<blockquote>
  <p>here is the statement in android
     canvas.drawBitmap(visiblePage, 0, 0, paint);</p>
  
  <p>Now I add 
     canvas.rotate(90)</p>
  
  <p>There is no effect.
  But if I write
     canvas.rotate(90)
     canvas.drawBitmap(visiblePage, 0, 0, paint);
  I get no bitmap drawn.
  So what am I not doing right?</p>
</blockquote>
