[android-developers] Odd issue involving hardware acceleration

My app allows the user to draw on the screen by capturing and
processing touch events. Additionally, my application makes use of
Canvas.drawPicture and some other methods not supported by hardware
acceleration.

On some ICS devices there is an option to force hardware acceleration
in settings: "force gpu rendering, use 2d harware acceleartion in
applciations". When this is enabled, my application crashes with
error: android.view.GLES20Canvas.drawPicture(GLES20Canvas.java:895).
So, I explicitly disabled hardware acceleration on the View that uses
this method with: View.setLayerType(View.LAYER_TYPE_SOFTWARE, null);

However, disabling hardware acceleration in this way impacts the
performance of my drawing, the drawing gets "choppy", as if less
MotionEvent.ACTION_MOVE are being generated. This happens on all 3.0+
devices, regardless of if the "force acceleration" setting is on.

So, I figure that there was something in the View's LayerType which
was assisting my drawing, and that this is lost when I call
View.setLayerType(...). Prior to my call to View.setLayerType(...),
View.getLayerType() evaluates to LAYER_TYPE_NONE.

Any suggestions as to how to explicitly prevent Hardware Acceleration
while preserving whatever it is that was assisting my touch input?

--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en