[maemo-developers] Optimal battery life considerations in apps

[From: Anderson Lizardo]

On Fri, Jul 24, 2009 at 4:54 AM, Andrew Flegg<andrew at bleb.org> wrote:
> On Fri, Jul 24, 2009 at 07:55, daniel wilms<daniel.wilms at nokia.com> wrote:
>>
>> there is an API to detect if the window is in the foreground or not (thx to Kimmo
>> for pointing me to this) [1]. If this property is true, then the window is visible
>> on the screen. You can use this parameter directly from your root window. And here
>> [2] you find the method to get the value of the parameter.
>
> Yup, indeed. (PyMaemo doesn't expose the method, but you can get the property).

Hmm, here I can see this method just fine (Scratchbox X86 target):

SBOX> run-standalone.sh python2.5 -c "import hildon; print
hildon.Window.get_is_topmost" 2>/dev/null
<method 'get_is_topmost' of 'hildon.Window' objects>

I'm using Maemo 5 Beta 2 and python-hildon 0.9.0-1maemo10.

> However, what's the best way of detecting when you come *back* to the
> foreground? I didn't get a property-change event (although this could
> be due to a PyMaemo bug rather than a Hildon one).

If you could get a property-change event for any other property, I
doubt that's a PyMaemo specific bug, because there would be no special
handling for this specific property. If no property change at all is
triggering this event, than that would be a bug :)

Regards,
-- 
Anderson Lizardo
OpenBossa Labs - INdT
Manaus - Brazil