Friday, March 30, 2012

Re: [android-developers] Wifi and phone sleep state

30.03.2012 15:09, Mark Murphy написал:
>
> Y'know, I had not ever consciously thought about the fact that I
> hadn't been seeing the old "WiFi spinup when waking up the device with
> the power button" as much as before.

You would have noticed sooner had you been using my stupid little WiFi
widget :)

>
> Do you know how we detect this? Or is it purely by OS version? I can't
> find anything in the Settings app to control this timeout, and I don't
> recall seeing anything in the SDK about it (though it's not like I
> have been looking).

The default appears to vary by OS version (and possibly the
manufacturer's whims).

According to my sources

(
4.0.1/packages/apps/Settings/src/com/android/settings/wifi/AdvancedWifiSettings.java
)

the policy is stored under:

http://developer.android.com/reference/android/provider/Settings.System.html#WIFI_SLEEP_POLICY

From an application's point of view, though, it's just same old
ConnectivityManager.getActiveNetworkInfo - the connection is either
there and it's WiFi, or it's not.

-- K

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