Comments on codetastrophe: Accessing hidden System Service APIs in Android

I absolutely accept you will do abundant more good...

2011-12-12T05:44:12.561-05:00

I absolutely accept you will do abundant more good in the approaching I acknowledge aggregate you accept added to my ability base.Admiring the time and accomplishment you put into your blog and abundant advice you offer!

Hi, Is there any way to block the calls. One way a...

2011-02-27T01:31:15.644-05:00

Hi,
Is there any way to block the calls. One way as you suggested is writing the aidl. But with that for a fraction of second call screen used to come and than the call ends. I don't want even that to happen. Please suggest some way to achieve this. There used to be an API called setRadio but it has been deleted I guess. I am using android 2.1.

Hi Jon, Where does the mService property come fro...

2010-06-30T05:39:36.515-04:00

Hi Jon,

Where does the mService property come from?

Field f = c.getDeclaredField("mService");

I am trying to access the iTelephony.aidl but I get a No Such Field Exception

Hello Alex, Have you managed to get acces to the c...

2009-11-30T06:51:25.127-05:00

Hello Alex,
Have you managed to get acces to the com.android.internal.telephony methods?
I have a project to do witch needs toggle the phone on/off, supply PIN etc.
Can you post your eclpise project?

Regards,
Sorin

Hello, I read your post and code with pleasure an...

2009-04-24T21:11:00.000-04:00

Hello,

I read your post and code with pleasure and great interest because I have been trying to do some of the same things.

Specifically, I have been trying to write an application which, among other functions produces a map of cell towers available for connection at any point in time.

In order to do this, I need to be able to access functions such as getNeighboringCellInfo() method in TelephonyManager (and other hidden ones) not accessible via the SDK.

To make a long sotry short, for testing purposes (not to be included in a production release) I added to my application package all the necessary classes, including TelephonyManager, PhoneStateListener, and NeighboringCellInfo, and all the required interfaces including ITelephony.

So far so good. getNeighboringCellInfo() is accessible. However, the application crashes with the following message:

04-24 17:06:08.039: WARN/Parcel(95): **** enforceInterface() expected 'com.android.internal.telephony.ITelephony' but read 'com.android.locationtest.ITelephony'
.
.
.
04-24 17:06:08.229: ERROR/AndroidRuntime(4529): Caused by: java.lang.SecurityException: Binder invocation to an incorrect interface

I suspect/hope that I should be able to resolve the problem fairly easily but I can't quite see how.

Given your own experience in accessing "hidden" resources in Android, I would appreciate your thoughts and suggestions.

Thanks.

Alex Donnini

I could add android.location and put aidl files th...

2009-03-19T05:23:00.000-04:00

I could add android.location and put aidl files there. it generated .java files too. however when I try to import those files, it shows error. also I get an error saying
"unable to open file for read" for all the AIDL files. how do I fix this problem?

I put together a little apk that visualizes the GP...

2009-02-01T11:09:00.000-05:00

I put together a little apk that visualizes the GPS status info (signal strength, constellation of satellites). Find an image and links to source and apk at
http://androidgps.blogspot.com/2009/02/visualizing-gps-satellite-status.html.
I have only had the chance to test this on an Openmoko Freerunner running Android, so I would love to see if this runs the same with a G1.

Source is up, see http://code.google.com/p/codetastrophe/source/browse/#svn/trunk/projects/satinfo

There are instructions somewhere on there for pulling that down with svn. If you run into any issues shoot me an email, jondroid at nologs dot com.

Thanks for the prompt reply. I can't wait to get ...

2008-12-10T16:31:00.000-05:00

Thanks for the prompt reply. I can't wait to get this working.

The problem is:

private class GpsListener extends IGpsStatusListener.Stub implements ILocationListener
{

@Override
public void onFirstFix(int ttff) throws RemoteException {

if I remove "@Override" then there're no errors, but then it's not overriding and is the wrong approach right?

Otherwise it just won't work, maybe the stubs are getting corrected incorrectly from aidl's for me...

Would love to see your Eclipse project to import, thanks!

I was using the public SDK, 1.0r2. I'll upload the...

2008-12-10T11:48:00.000-05:00

I was using the public SDK, 1.0r2. I'll upload the full source for the eclipse project later today.

I was able to override those methods by extending IGPSStatusListener.stub:

private class GpsListener extends IGpsStatusListener.Stub {
...
}

I didn't really dig too much into the internals of the .Stub and .Stub.Proxy classes, but what I have seems to work.

Nice code!

Which SDK are you using? The pr...

2008-12-10T07:38:00.000-05:00

Nice code!

Which SDK are you using? The problem is that the onFirstFix(int), onGpsStarted(), etc are in IGpsStatusListener.Stub.Proxy not in IGpsStatusListener.Stub

and the Proxy class is private so I can't override these methods.

Any ideas?

Thx!