This is the way you get the signal strength. The status bar uses the exact same information to show its bars.
On Mon, Apr 6, 2009 at 1:18 PM, Matthew <[email protected]> wrote: > > Hello, > > I am new to this Group. > > Thank you for your recommendation to avoid using unsupported > techniques. > > I am trying to obtain the signal strength seen by the G1 phone. > > As you had referred to, I have implemented a PhoneStateListener and > onSignalStrengthChanged (int asu). > > It looks like I am seeing only a few returned asu values (e.g., 2, 6, > 12 and 25). > > I believe that the mapping of asu to dBm is as follows: -113dBm + > 2*asu. Therefore, it looks like the G1 phone is reporting dBm values > of -109, -101, -89 and -63. > > Also, I see that the signal strength icon used by the G1 has four bars > (I am assuming that each bar corresponds to one of the 2, 6, 12 and 25 > asu values). > > Question: do you know if there is a supported way to obtain signal > strength (either as an asu measure or a direct dBm measure) with a > higher level > of granularity (that is, for example, in single asu steps or single > dBm steps)? > > Thank you in advance for any help or comments. > > > On Mar 31, 3:40 am, Dianne Hackborn <[email protected]> wrote: > > DO NOT DO THIS!!! > > > > Especially since there is a public API for this: > > > > http://developer.android.com/reference/android/telephony/PhoneStateLi... > > > > We've been through the whole "don't use private APIs" stuff enough times, > so > > I'll just note: > > > > 1. This is not "a bit of an advanced topic," this is outright hacking a > > fragile kludge. > > 2. Please do not recommend that people do this kind of stuff at least > > without the relevant caveats that it is not a supported thing to do and > they > > can expect their app to break. > > 3. Just because you get something to run on the current G1 today does not > > mean it is the right thing to do. > > > > > > > > > > > > On Thu, Mar 12, 2009 at 3:28 PM, <[email protected]> wrote: > > > > > This can be done, but it is a bit of an advanced topic. You'll need > > > to use an internal class which is > > > com.android.internal.telephony.PhoneStateIntentReceiver > > > > > Grab this package, the .class files from the cupcake source tree > > > repository , (doesn't ship with the SDK) and add the classes to you're > > > class path, and include in the /libs directory, or package them into > > > your existent android.jar file. > > > > > Code to get the signal strength is as follows: > > > > > import com.android.internal.telephony.PhoneStateIntentReceiver; > > > private static final int EVENT_SIGNAL_STRENGTH_CHANGED = 200; > > > .. > > > /// first initialize the PhoneStateIntentReceiver (assumes you're > > > inside a class that extends Context) > > > > > void initPhoneStateReciever() > > > { > > > phoneStateReciever = new PhoneStateIntentReceiver(this, new > > > Handler( getMainLooper())); > > > phoneStateReciever.notifySignalStrength > > > (EVENT_SIGNAL_STRENGTH_CHANGED); > > > phoneStateReciever.registerIntent(); > > > } > > > > > //to get the signal strength, use this method, or something similar > > > > > void updateSignalStrength() > > > { > > > int signalDbm = phoneStateReciever.getSignalStrengthDbm(); > > > int signalAsu = phoneStateReciever.getSignalStrength(); > > > System.out.println("Time: "+System.currentTimeMillis()+" > > > Signal Strength DB: "+signalDbm+" strength Asu: "+signalAsu); > > > } > > > > > The use of internal classes is not officially supported, and you'll > > > need to grab the .class files from the source repo, but I do actually > > > have code that implements and is tested on the G1. Refer to other > > > threads on options for getting the code and setting up your > > > development environment to use internal classes. Good luck! > > > > > Mark > > > > > On Mar 11, 7:49 am, Shrikant Agrawal <[email protected]> wrote: > > > > Hi > > > > > > I want to find the network signal strength for my app. > > > > But I cant find the api for it. > > > > > > Do anybody know how to find the signal strength of the phone? > > > > > > Thanks > > > > -- > > Dianne Hackborn > > Android framework engineer > > [email protected] > > > > Note: please don't send private questions to me, as I don't have time to > > provide private support. All such questions should be posted on public > > forums, where I and others can see and answer them.- Hide quoted text - > > > > - Show quoted text - > > > -- Dianne Hackborn Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. 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