[android-developers] Problem with PhoneStateListener.onSignalStrengthsChanged

I have written an android app which listens to the phone signal
strength. The app works perfectly with Android 1.6 and lower using
PhoneStateListener.SignalStrengthChanged(int asu), but I can't get it
to work on Android 2.1.

I know that I have to use onSignalStrengthsChanged(SignalStrength
signalStrength) but this override never seems to be called in my code.
SignalStrengthChanged(int asu) is called, but this always returns a
signal strength of -1 asu because its been depecated. I need to get
the onSignalStrengthsChanged(SignalStrength signalStrength) to
work.... does anyone know what I'm doing wrong?

I'm testing on a EVO with Android 2.1. The phone type
(TelephonyManager.getPhoneType) is CDMA and
TelephonyManager.getNetworkType returns "EVDO_A".

Here's the code:

mSignalListener = new PhoneStateListener(){
@Override
public void onSignalStrengthChanged(int asu){
Log.d(Utils.LOGTAG, "#1. " + String.valueOf(asu));
if (mStrength != asu){
mStrength = asu;
NotifyUI();
}
super.onSignalStrengthChanged(asu);
}

@Override
public void onSignalStrengthsChanged(SignalStrength signalStrength)
{
Log.d(Utils.LOGTAG, "#2."); // this never gets called

if (signalStrength.isGsm())
mStrength = signalStrength.getGsmSignalStrength();
else{
int strength = -1;
if (signalStrength.getEvdoDbm() < 0)
strength = signalStrength.getEvdoDbm();
else if (signalStrength.getCdmaDbm() < 0)
strength = signalStrength.getCdmaDbm();

if (strength < 0){
// convert to asu
mStrength = Math.round((strength + 113f) / 2f);
}

NotifyUI();
}
super.onSignalStrengthsChanged(signalStrength);
}
};

mTelManager =
(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
mTelManager.listen(mSignalListener,
PhoneStateListener.LISTEN_SIGNAL_STRENGTH);

Thanks in advance

TAO

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