Android Question Http request under sleep state

[Medexpert]

Dear All!


I try to collect GPS location and send it every 10 minutes.
I used the StartServiceAt function to start the service under Android 7.0
The service successful get the GPS data, but it has some problem with the sending the data.
One time it is successful, one time is unsuccessful. If the phone is switched on, the service is working well.
I tried to use Httpclient with Http_client1.Execute(Http_krequest,2) and HttpUtils2 with Job.PostString. (Tried okhttp, okHttputils2 too) Also tried to use the #StartCommandReturnValue: android.app.Service.START_STICKY arguments but not helped.

I would like to send reliably the collected data while not use many energy.

Could you help me?

Thanks in advanced,

Istvan

 

[Erel]

You should use OkHttpUtils2.

Acquire a partial lock with PhoneWakeState (Phone library) before you send the request and release it when done.

 

[Medexpert]

Thank you.
This works well.

The communication working but regularly get an error:
java.net.SocketTimeoutException: failed to connect to xxxxxxxxxxxxxxx (port 443) after 30000ms
or
java.net.SocketTimeoutException: connect timed out
or
java.net.SocketException: Software caused connection abort
The strangest error: java.net.UnknownHostException: Unable to resolve host "xxxxxxxxxxxxxx": No address associated with hostname
In this case I resend the request, but I get the error again. Another time (10minutes later) works fine.

If I check the host with webrowser I didn’t get any error works fine.
I tried it with Wifi and Mobile Internet too.

Have you got any suggestion?

Thanks,
Istvan

 

[lemonisdead]

Have you got any suggestion?

Don't you think the device could stop any net connection while in the idle state ?
Perhaps should you try by waking it, changing the PhoneWakeState before trying to connect to the server

 

[Medexpert]

Yes, I use the PhoneWakeState.PartialLock command in Service_Start
Do I need wait some time after PartialLock?

 

[tigrot]

Wait for connection to come active, the phone needs some time to restart a connection to wi-fi and public network. The connection is lost when the phone frezes. try to ping a known address(like google).

 

[Medexpert]

I tried to ping the destination server. It is unsuccessful, try again 15 second: unsuccessful
If the phone is on, the ping is successful.
The Error: java.net.SocketTimeoutException: connect timed out and Error: java.net.SocketException: Software caused connection abort.

 

[tigrot]

If the ping is ok the address is reachable. But is the server ready all the times to accept connection? Check server side!

 

[tigrot]

I'd put some trace on server side.

 

[tigrot]

Must be a non reliable connection on server or client. Check connection. If in the middle of a connection negotiation the net drops this is the kind of error you find.
Ciao!

 

[Medexpert]

I checked again, and the ping is unsuccessful. (I changed our previous post)

 

[Medexpert]

I gaved the PartilLock command after Service started and tried to check the ping, and if unsuccessful then give the partiallock command again... not helped.
The GPS module successfuly wake up after PartialLock, but the wifi not.
If I use the KeepAlive command, it is working, but I don't want switch on the screen, and I think is to much power.
Is it any way to wake up the Network (Wifi and 3G) module?

 

[Erel]

Try to acquire a wifi lock: https://www.b4x.com/android/forum/threads/httpserver-problem-solved.30968/#post-180606 (from the service).
I never seen it help but it is worth trying.

 

[Medexpert]

Thanks.
Not working.
The Network problem only with Android 7 phones (I tried with 2 phones). On other Phones which have Android 5 or 6 Works well when I use the Phone PartialLock function.
Have you got any other idea?

 

[Medexpert]

I think I found the sulution.
I put the App into battery optimazation exception list and Works.

Can I disable an App optimazation from b4a code? Can I check the wheather App disabled or not? Can I open the Android form?

 

[Erel]

Please start a new thread for a new (related) question.

 

[Medexpert]

Ok, Thanks
And thanks for everybody for helping.
Istvan