Re: [android-developers] Re: Rendering off UI thread causes ANR on Samsung Note

As state in my original post, this simplified Activity mimics some behavior in my application: a Bitmap is rendered in a non-ui thread, while the user interacts with the UI, producing an ANR on the Samsung Note, but not on any other device.  The infinite loop helps to demonstrate this behavior.

On Tuesday, 1 May 2012 16:17:46 UTC-4, MagouyaWare wrote:

while (1!= 0)

And why in the world would you want an infinite loop?

Thanks,
Justin Anderson
MagouyaWare Developer
http://sites.google.com/site/magouyaware

On Tue, May 1, 2012 at 2:15 PM, Justin Anderson <magouyaware@gmail.com> wrote:

I'm sorry if the code isn't clear.  The new thread instantiates a Canvas and paints into it with Canvas.drawBitmap().  Neither the instantiation nor the method call effect the UI.

Ah, ok... I see that now.  Um... maybe I'm missing something, but what is the point of doing this?  What exactly are you trying to accomplish?

Thanks,
Justin Anderson
MagouyaWare Developer
http://sites.google.com/site/magouyaware

On Tue, May 1, 2012 at 1:35 PM, Ab <abe.oppenheim@gmail.com> wrote:

I'm sorry if the code isn't clear.  The new thread instantiates a Canvas and paints into it with Canvas.drawBitmap().  Neither the instantiation nor the method call effect the UI.

On Tuesday, 1 May 2012 15:25:34 UTC-4, MagouyaWare wrote:

the thread rendering off the UI thread doesn't touch/modify/update the UI

Then would you mind explaining this?

It then starts a new thread which renders a Bitmap into a canvas

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