Android Question SerialLibJab Library Problem

[kev128]

i got the following message cause by declare a obj as SerialPort Class (Library: SerialLibJab), isn't any update version of SerialLibJab Library? (in order to connect RFID Reader through UART: "/dev/ttyS1")
===================================
Sub Activity_Create(FirstTime As Boolean)
Dim s1 As SerialPort
End Sub
===================================
Message:
** Activity (main) Pause, UserClosed = true **
** Service (starter) Destroy **
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
java.lang.UnsatisfiedLinkError: dlopen failed: "/data/app/b4a.example-vY_FkD0y5yBefYUDYBJ69g==/lib/arm/libserial_port.so" has text relocations (https://android.googlesource.com/pl...md#Text-Relocations-Enforced-for-API-level-23)
at java.lang.Runtime.loadLibrary0(Runtime.java:1016)
at java.lang.System.loadLibrary(System.java:1657)
at android_serialport_api.SerialPort.<clinit>(SerialPort.java:93)
at b4a.example.main._activity_create(main.java:380)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:710)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:339)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:249)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:139)
at b4a.example.main.afterFirstLayout(main.java:104)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6753)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:482)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
** Activity (main) Resume **

 

[Erel]

Who created this lib?

I don't see it here: https://www.b4x.com/android/forum/p...erialLibJab&prefix=1,2,3,17,24,29&product=b4a

 

[kev128]

I download from here, because i need to connect to ttyS1 in order to send command to RFID reader, isn't any existing library i can use？

Thanks for your reply！

https://www.b4x.com/android/forum/threads/open-read-write-uart-serial-device.21440/#post-165146

 

[Erel]

The library will work if you set targetSdkVersion to 22 or below. It needs to be updated to support newer targets (it will work on new devices).
https://www.b4x.com/android/forum/threads/87610/#content

What happens if you try to open a stream with:

Dim out As OutputStream = File.OpenOutput("/dev/ttyS1", "", False)

 

[kev128]

Hi Erel, i already try to use OutputStream Method, but i want to receive the serial port result by AsyncStreams Method, so i want to use the SerialLibJab Library, isn't any sample for using AsyncStreams with UART?

Thanks for your help!

 

[Erel]

The next step after opening the OutputStream is to pass it to AsyncStreams. You don't need any special library for this.