jkSSH2: android.os.NetworkOnMainThreadException

[devcitizen]

Hi,

I am trying to find my way around ssh command execution using Ribber's jkSSH2 library version 1.10. The same NetworkOnMainThreadException (newer Android sdk levels will not permit networking in the main ui thread) is already fixed for the HttpUtils2 library. Is there any way for me to use jkSSH2 with API level > 8?

Thank you in advance!

Kind regards

Roland

 

[ribber]

Hi,

I will try to update my libary to solve this problem. Could you give me some information how it was fixed in HttpUtils2?

Thanks!

 

[devcitizen]

Hallo Ribber!

I will try to update my libary to solve this problem.

That is very kind of you!

Could you give me some information how it was fixed in HttpUtils2?

Please have a look at http://www.b4x.com/forum/basic4andr...no-work-targetsdkversion-14-a.html#post130993

I think it is quite a task, because the network interaction has to be placed in an extra thread to really fix this.

Kind regards

Roland

 

[warwound]

You can see one way of running a library method in it's own thread and then raising an event here: http://www.b4x.com/forum/libraries-...12265-getallcontacts-too-slow.html#post138152

Note post #5 - my example code was not 100% correct!

Martin.

 

[ribber]

Ok, thank you both.

@devcitizen: Could you please send me demo project (with the error) so I can test my updated libary?

 

[devcitizen]

Hallo Ribber,

sorry for my late answer. I will create a demo the next day. Thank you for your help!

Bye
Roland

 

[devcitizen]

@Ribber: Please have a look at the project and screenshot I attached. Is this sufficient for your test?

Thank you! Bye
Roland

 

[ribber]

Thank you, this is sufficient. I will make some tests and improvements.

 

[Latzen]

Hello, I have the same problem. The error get when you run the command on the server. If I execute ssh2.isconnected, the answer is false, but no errors when trying to connect. With Android 4.0 I have the problem with 2.3 no. you have discovered something?

Thanks

 

[hayderOICO]

Hi All

Just to ping this thread. Is there any update to the SSH threading issue? I'm trying to make a small app which has multiple buttons each calling a different command on the PC via SSH.

Should I use the B4Aserver instead?

 

[Erel]

You can use B4AServer.

You can remove this error with this code:

Dim p As Phone
If p.SdkVersion >= 9 Then
   Dim r As Reflector
   r.Target = r.CreateObject("android.os.StrictMode$ThreadPolicy$Builder")
   r.Target = r.RunMethod("permitAll")
   r.Target = r.RunMethod("build")
   r.RunStaticMethod("android.os.StrictMode", "setThreadPolicy", _
      Array As Object(r.Target), Array As String("android.os.StrictMode$ThreadPolicy"))
End If

 

[hayderOICO]

Thanks Erel!

will give that a try.

 

[imgsimonebiliato]

You can use B4AServer.

You can remove this error with this code:

Dim p As Phone
If p.SdkVersion >= 9 Then
   Dim r As Reflector
   r.Target = r.CreateObject("android.os.StrictMode$ThreadPolicy$Builder")
   r.Target = r.RunMethod("permitAll")
   r.Target = r.RunMethod("build")
   r.RunStaticMethod("android.os.StrictMode", "setThreadPolicy", _
      Array As Object(r.Target), Array As String("android.os.StrictMode$ThreadPolicy"))
End If

Hello Erel,
please can you explain me, what does this code do?

 

[Erel]

http://www.b4x.com/android/forum/threads/workaround-the-networkonmainthread-exception.44760/#content

 

[MrKim]

Check this post.

Workaround the NetworkOnMainThread exception

Android 4+ doesn't allow applications to make network calls on the main thread. There is a good reason for this restriction as such calls cause the UI to freeze and after 5 second Android will show the "Application not responding" dialog. Proper libraries take care of handling network calls...

www.b4x.com

It will prevent the error and crash by allowing network on main.

 

[DonManfred]

Check this post

Why are you posting to a 11 years old thread? It is a mistake to do this.