Android Question can BA raise events to a service? (solved)

wbtcpip said:

I have a java library with the following code:

B4X:

  // Encoder callback
  @Events(values={"EncodeProc(int handle, int channel, ByteBuffer buffer, int length, Object user)"})
    @ShortName("BASSEnc_EncodeProc")
    public static class EncodeProcedure {
        private BA ba;
        private String eventName;
        public void Initialize(BA ba, String EventName) {
             this.ba = ba;
             this.eventName = EventName.toLowerCase(BA.cul);
        }
        public BASSenc.ENCODEPROC encodeproc = new BASSenc.ENCODEPROC() {  
                 public void ENCODEPROC(int handle, int channel, ByteBuffer buffer, int length, Object user) {
                                 byte[] b = new byte[length];
                                    buffer.get(b);
                                    ba.raiseEvent(null, eventName + "_encproc", handle, channel, b, length, user);          
                  }
       };
    }


    static {
        System.loadLibrary("bassenc");
    }

And in my B4A service:

B4X:

Sub Process_Globals
    ....
       Dim Pencopus As BASSEnc_EncodeProc
    .....
End Sub
Sub Service_Create
    .....
    Pencopus.Initialize("myenc")
    .....
    Notification1.Initialize
    Notification1.Icon = "icon" 'use the application icon file for the notification
    Notification1.Vibrate = False
    Service.StartForeground(1, Notification1)
End Sub

but when i start the service i get:

** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
*** Service (audioservice) Create ***
Error occurred on line: 31 (AudioService)
java.lang.ClassCastException: anywheresoftware.b4a.objects.NotificationWrapper$NotificationData cannot be cast to android.app.Notification
at bass.example.audioservice._service_create(audioservice.java:411)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:738)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:357)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:260)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:171)
at bass.example.audioservice.onCreate(audioservice.java:56)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:3874)
at android.app.ActivityThread.access$2100(ActivityThread.java:229)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1909)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:7410)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
** Service (audioservice) Start **

If i put the same code in activity it works without problems. Is BA object incompatible with service?

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wbtcpip said:

so i will not able to receive any notification from BA

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wbtcpip said:

so i cannot use it for encoding audio data in the background

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wbtcpip said:

into a service of my application

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sub EventName_encproc(your parameters)
end sub

@Events(values={"EncodeProc(int handle, int channel, ByteBuffer buffer, int length, Object user)"})

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@Events(values={"EncodeProc(handle As Int, channel As Int, buffer as Object, length As Int, user As Object)"})

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wbtcpip said:

This is the sub in b4a that receive that callback

Sub myenc_encproc(handle As Int, channel As Int, mybuffer() As Byte, length As Int, User As Object)
If Socket2.Connected Then
astream2.Write2(mybuffer,0,length)
'Log(DateTime.Time(DateTime.Now) & " Sent " & length & " bytes to MBStudio")
End If
End Sub

It's working fine if i run the code in an activity, while java gives error if i move all my code in a service.
As i'm receiving live audio data i need to be working in a service but unfornately java raise the error

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