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

Redirecting this private reply back to the list, where it belongs:

On Tue, May 1, 2012 at 4:46 PM, Ab <abe.oppenheim@gmail.com> wrote:
> My application renders some in a non-ui thread while the user continues to
> interact with the UI.

That's fine, so long as it does so in such a way as to not hammer the
CPU into oblivion. This is why game developers take steps to manage
their frame rate.

> This simple test Activity mimics this behavior by
> creating a thread which continually paints into a Canvas while the user
> presses the buttons in the UI.
>
> This Activity gives an ANR on the Samsung Galaxy Note within 10-30 seconds,
> but gives no issues on the 6 other devices I tested it on.

I find that difficult to believe.

> Given that the ANR occurs so quickly, and doesn't occur on other devices, I
> don't think the CPU usage is the cause.

You are welcome to your opinion.

--
Mark Murphy (a Commons Guy)
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