Bugfixing: need developer with Galaxy

[piotr]

Hi, I'm writing here, because I do not own Galaxy for tests.

I have strange GPS reading bug reported for Galaxy devices. I have prepared small test GPS project module, that works on all devices and not works on Galaxy.

If you have experience with GPS and want to help to find a bug in this code, please write.

tripcomputer.pl

 

[donster]

Hi piotr,
Looks like you aren't the only person having this problem. Have a look at this link on the dev forums Samsung Galaxy GPS no fix ? - Android Developers | Google Groups
It might be worth contacting the author of the post to see if they had any luck with the issue.
Donster

 

[piotr]

Hi piotr,
It might be worth contacting the author of the post to see if they had any luck with the issue.
Donster

Funny This is my post there I'm still searching for problem resolution. I think, it would be easier, if I could just buy an Galaxy But unfortunately, it is impossible, so I need help of some Galaxy owner.

I really do not know, what is wrong with this code.

Attachment added for any ppl interested.

 

[giladgaron]

I'm a J2EE developer, I'll be happy to help.
I have no experience with the Android platform but I'll give it a shot if you'd like.

I just need to setup my environment.

 

[donster]

I'm having a similar issue with the Samsung Moment (http://androidforums.com/samsung-moment/19278-developer-need.html). As you can see, I've had the opportunity to test my app with various other devices (I attended a google developer lab recently), but not on the Samsung.
What's with these Samsung phones?????


- Don

 

[piotr]

I'm having a similar issue with the Samsung Moment [...] What's with these Samsung phones?????

Maybe they "improved" something in Android framework

 

[piotr]

I'm a J2EE developer, I'll be happy to help.
I just need to setup my environment.

Great !

You can get TestGPS.zip from my previous post, unpack and open project in Eclipse (Installing the Android SDK | Android Developers).

APK is inside zip file.

This is very simple project, that does nothing but logs GPS activity to edit window.

On my Magic, log looks like that:

onCreate
Location providers:
- network
- gps
Started
GPS_EVENT_FIRST_FIX
loc: alt, accuracy / 768.0
loc: alt, accuracy / 192.0
loc: alt, accuracy / 128.0
loc: alt, accuracy / 96.0
Accuracy acceptable

If you do not get results as above (or similar), you can browse code, for methods, that are never called. Why they are not ? I do not know

 

[giladgaron]

I can't seem to get the adb to list my galaxy, I followed the instructions listed in the ' how to get adb to list the galaxy ' thread, but no luck.
I'll try again tommorow...

Worst case scenario, I'll debug it the old fashion way.

 

[UKLooney]

I get this

onCreate
Location providers:
 [B]- gps[/B]
 - network
 Started
 GPS_EVENT_STARTED
 GPS_EVENT_FIRST_FIX
loc: alt, accuracy / 35.74532
Accuracy acceptable

Galaxo with gps enabled

 

[UKLooney]

What's with these Samsung phones?????- Don

I'm also having issues developing my app on the galaxy. The sensor updated speed is cannot be changed, 200ms updates no matter what speed you request them at.

 

[dgtale]

I can't seem to get the adb to list my galaxy...

You have to change a bit the <SDK-folder>\usb_driver\android_usb.inf

[Google.NTx86]
...
; Samsung Galaxy
%SingleAdbInterface% = USB_Install, USB\VID_04E8&PID_6640
%CompositeAdbInterface% = USB_Install, USB\VID_04E8&PID_6640&MI_04
%SingleBootLoaderInterface% = USB_Install, USB\VID_04E8&PID_0FFF

[Google.NTamd64]
...
; Samsung Galaxy
%SingleAdbInterface% = USB_Install, USB\VID_04E8&PID_6640
%CompositeAdbInterface% = USB_Install, USB\VID_04E8&PID_6640&MI_04
%SingleBootLoaderInterface% = USB_Install, USB\VID_04E8&PID_0FFF

 

[piotr]

Worst case scenario, I'll debug it the old fashion way.

Use The Main.Log, Luke

 

[piotr]

I get this

onCreate
Location providers:
 [B]- gps[/B]
 - network
 Started
 GPS_EVENT_STARTED
 GPS_EVENT_FIRST_FIX
loc: alt, accuracy / 35.74532
Accuracy acceptable

Galaxo with gps enabled

I don't get it. Did you just run TestGPS.apk without any changes ?

 

[giladgaron]

Running the apk from phone:
onCreate
Location providers:
- gps
- network
Started
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
TEMPORARILY_UNAVAILABLE
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED

When I get back home from work, I'll try the suggested fix for the drivers (Thanks dgtale!) And debug it on my IntelliJ

 

[giladgaron]

You have to change a bit the <SDK-folder>\usb_driver\android_usb.inf

[Google.NTx86]
...
; Samsung Galaxy
%SingleAdbInterface% = USB_Install, USB\VID_04E8&PID_6640
%CompositeAdbInterface% = USB_Install, USB\VID_04E8&PID_6640&MI_04
%SingleBootLoaderInterface% = USB_Install, USB\VID_04E8&PID_0FFF

[Google.NTamd64]
...
; Samsung Galaxy
%SingleAdbInterface% = USB_Install, USB\VID_04E8&PID_6640
%CompositeAdbInterface% = USB_Install, USB\VID_04E8&PID_6640&MI_04
%SingleBootLoaderInterface% = USB_Install, USB\VID_04E8&PID_0FFF

added the files and selected the %SingleAdbInterface% but I get an error while installing the driver:
"The driver installation file for this device is missing an entry..."

 

[UKLooney]

I don't get it. Did you just run TestGPS.apk without any changes ?

I got this initially when indoors

onCreate
Location providers:
- gps
- network
Started
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
TEMPORARILY_UNAVAILABLE
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
.
.
.

assumed it was due to no GPS signal so I hung out the window at got what you expected.

onCreate
Location providers:
- gps
- network
Started
GPS_EVENT_STARTED
GPS_EVENT_FIRST_FIX
loc: alt, accuracy / 35.74532
Accuracy acceptable

Didn't change any source

After some more tests, it seems like it only works as expected if the phione has a GPS signal lock prior to starting the app, or switching back to the app from another (when the onStart() event runs).


I then did this

onCreate <- Started app with no GPS lock
Location providers:
- gps
- network
Started
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
TEMPORARILY_UNAVAILABLE
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED <- walked outside at this point
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED <- opened google maps at this point and let it located me
TEMPORARILY_UNAVAILABLE
Started <- swapped back to TestGPS
GPS_EVENT_STARTED
TEMPORARILY_UNAVAILABLE.
GPS_EVENT_FIRST_FIX
loc: alt, accuracy / 35.74532
Accuracy acceptable
AVAILABLE <- walked back inside
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
TEMPORARILY_UNAVAILABLE
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
.
.
.

 

[giladgaron]

I got this initially when indoors

onCreate
Location providers:
- gps
- network
Started
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
TEMPORARILY_UNAVAILABLE
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
.
.
.

assumed it was due to no GPS signal so I hung out the window at got what you expected.

onCreate
Location providers:
- gps
- network
Started
GPS_EVENT_STARTED
GPS_EVENT_FIRST_FIX
loc: alt, accuracy / 35.74532
Accuracy acceptable

Didn't change any source

After some more tests, it seems like it only works as expected if the phione has a GPS signal lock prior to starting the app, or switching back to the app from another (when the onStart() event runs).


I then did this

onCreate <- Started app with no GPS lock
Location providers:
- gps
- network
Started
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
TEMPORARILY_UNAVAILABLE
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED <- walked outside at this point
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED <- opened google maps at this point and let it located me
TEMPORARILY_UNAVAILABLE
Started <- swapped back to TestGPS
GPS_EVENT_STARTED
TEMPORARILY_UNAVAILABLE.
GPS_EVENT_FIRST_FIX
loc: alt, accuracy / 35.74532
Accuracy acceptable
AVAILABLE <- walked back inside
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
TEMPORARILY_UNAVAILABLE
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
.
.
.

Reproduced it as well.
It took more time to lock on me, even after google maps locked on me, but It worked.

 

[tisti]

It seems to be fixed in the updated trip computer. I took my first path just before. Well done

 

[screaminbug]

Hi.

It's the same here. However, reducing the polling interval (ie. calling the start(int) method with parameter between 0 and 5) results in locking the GPS signal quite quick.

This is with start(3), in pretty poor conditions (indoors)

onCreate
Location providers:
- gps
- network
Started
GPS_EVENT_STOPPED
GPS_EVENT_STARTED
TEMPORARILY_UNAVAILABLE.....
GPS_EVENT_FIRST_FIX
loc: alt, accuracy / 214.66252
AVAILABLE
loc: alt, accuracy / 80.0
Accuracy acceptable

With 10, it's terrible. It's turning GPS off for too long to get some usable lock, even - as others demonstrated - when the lock was already made by some external application. After switching back to your app, it just shuts it down again.

 

[piotr]

It seems to be fixed in the updated trip computer. I took my first path just before. Well done

really ? I maked so many fixes, that now, I don't really know, where bug have been..

What values in Settings->Location update period did you try ?

 

[UKLooney]

Did this fix the problem?