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I know Android has some sort of connectivity measurement, because when there's connectivity the wifi or phone network icons will turn either green or blue, depending on the Android version.

In my opinion, this measurement isn't perfect, because although it will indicate accurately the absence of connectivity (e.g., lost wifi connectivity), it is not so accurate when the phone is connected to the Internet: at work, my Defy running Cyanogen 9 (Android 4.0.4) has icons that are always gray, no matter what, even when the connection is obviously up (see image below).

I wonder how, exactly, Android measures the connectivity status. Is it by performing a ping or other sort of probing of a server? By listening to a port? By testing if some protocol is enabled? Or what? This accepted answerThis accepted answer to a closely related question doesn't seem to answer it.

screen shot

I know Android has some sort of connectivity measurement, because when there's connectivity the wifi or phone network icons will turn either green or blue, depending on the Android version.

In my opinion, this measurement isn't perfect, because although it will indicate accurately the absence of connectivity (e.g., lost wifi connectivity), it is not so accurate when the phone is connected to the Internet: at work, my Defy running Cyanogen 9 (Android 4.0.4) has icons that are always gray, no matter what, even when the connection is obviously up (see image below).

I wonder how, exactly, Android measures the connectivity status. Is it by performing a ping or other sort of probing of a server? By listening to a port? By testing if some protocol is enabled? Or what? This accepted answer to a closely related question doesn't seem to answer it.

screen shot

I know Android has some sort of connectivity measurement, because when there's connectivity the wifi or phone network icons will turn either green or blue, depending on the Android version.

In my opinion, this measurement isn't perfect, because although it will indicate accurately the absence of connectivity (e.g., lost wifi connectivity), it is not so accurate when the phone is connected to the Internet: at work, my Defy running Cyanogen 9 (Android 4.0.4) has icons that are always gray, no matter what, even when the connection is obviously up (see image below).

I wonder how, exactly, Android measures the connectivity status. Is it by performing a ping or other sort of probing of a server? By listening to a port? By testing if some protocol is enabled? Or what? This accepted answer to a closely related question doesn't seem to answer it.

screen shot

    Post Closed as "duplicate" by geffchang, Dan Hulme, Compro01, Flow of
4 fixed spelling, grammar
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How does android measuresAndroid measure connectivity state?

I know Android havehas some sort of connectivity measurement, because when there's connectivity the wifi or phone network icons will turn either green or blue, depending on the Android version.

ToIn my opinion, this measurement isn't perfect, because although it will indicate accuratellyaccurately the absence of connectivity (ege.g., lost wifi connectivity), it is not so accurate when the phone is connected to the internetInternet: at work, my Defy running Cyanogen 9 (Android 4.0.4) have its aconshas icons that are always gray, no matter what, even when the connection is obviously up (see image below).

I wonder how, exactly, Android will measuremeasures the connectivity status. Is it by performing a ping or other sort of probbingprobing of a server? By listening to a port? By testing if some protocol is enabled? Or what? This accepted answer to a closely related question doesn't seem to answer it.

enter image description herescreen shot

How does android measures connectivity state?

I know Android have some sort of connectivity measurement, because when there's connectivity the wifi or phone network icons will turn either green or blue, depending on the Android version.

To my opinion, this measurement isn't perfect, because although it will indicate accuratelly the absence of connectivity (eg, lost wifi connectivity), it is not so accurate when the phone is connected to the internet: at work, my Defy running Cyanogen 9 (Android 4.0.4) have its acons always gray, no matter what, even when the connection is obviously up (see image below).

I wonder how, exactly, Android will measure the connectivity status. Is it by performing a ping or other sort of probbing a server? By listening to a port? By testing if some protocol is enabled? Or what? This accepted answer to a closely related question doesn't seem to answer it.

enter image description here

How does Android measure connectivity state?

I know Android has some sort of connectivity measurement, because when there's connectivity the wifi or phone network icons will turn either green or blue, depending on the Android version.

In my opinion, this measurement isn't perfect, because although it will indicate accurately the absence of connectivity (e.g., lost wifi connectivity), it is not so accurate when the phone is connected to the Internet: at work, my Defy running Cyanogen 9 (Android 4.0.4) has icons that are always gray, no matter what, even when the connection is obviously up (see image below).

I wonder how, exactly, Android measures the connectivity status. Is it by performing a ping or other sort of probing of a server? By listening to a port? By testing if some protocol is enabled? Or what? This accepted answer to a closely related question doesn't seem to answer it.

screen shot

3 added 487 characters in body; edited title
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I know Android have some sort of connectivity measurement, because when there's connectivity the wifi or phone network icons will turn either green or blue, depending on the Android version.

To my opinion, this measurement isn't perfect, because although it will indicate accuratelly the absence of connectivity (eg, lost wifi connectivity), it is not so accurate when the phone is connected to the internet: at work, my Defy running Cyanogen 9 (Android 4.0.4) have its acons always gray, no matter what, even when the connection is obviously upat work, my Defy running Cyanogen 9 (Android 4.0.4) have its acons always gray, no matter what, even when the connection is obviously up (see image below).

I wonder how, exactly, Android will measure the connectivity statushow, exactly, Android will measure the connectivity status. Is it by performing a ping or other sort of probbing a server? By listening to a port? By testing if some protocol is enabled? Or what? This accepted answer to a closely related question doesn't seem to answer it.

enter image description here

I know Android have some sort of connectivity measurement, because when there's connectivity the wifi or phone network icons will turn either green or blue, depending on the Android version.

To my opinion, this measurement isn't perfect, because although it will indicate accuratelly the absence of connectivity (eg, lost wifi connectivity), it is not so accurate when the phone is connected to the internet: at work, my Defy running Cyanogen 9 (Android 4.0.4) have its acons always gray, no matter what, even when the connection is obviously up (see image below).

I wonder how, exactly, Android will measure the connectivity status. Is it by performing a ping or other sort of probbing a server? By listening to a port? By testing if some protocol is enabled? Or what? This accepted answer to a closely related question doesn't seem to answer it.

I know Android have some sort of connectivity measurement, because when there's connectivity the wifi or phone network icons will turn either green or blue, depending on the Android version.

To my opinion, this measurement isn't perfect, because although it will indicate accuratelly the absence of connectivity (eg, lost wifi connectivity), it is not so accurate when the phone is connected to the internet: at work, my Defy running Cyanogen 9 (Android 4.0.4) have its acons always gray, no matter what, even when the connection is obviously up (see image below).

I wonder how, exactly, Android will measure the connectivity status. Is it by performing a ping or other sort of probbing a server? By listening to a port? By testing if some protocol is enabled? Or what? This accepted answer to a closely related question doesn't seem to answer it.

enter image description here

2 added 487 characters in body; edited title
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