Android Question error moving code from B4i to B4a, error

[omarruben]

I have an app create in B4i and works without error

Sub Class_Globals
    Private Root As B4XView 'ignore
    Private xui As XUI 'ignore
    Private clvListVideos As CustomListView                    '<------ variable declared, but not initialized anywere, by the example code
    Private PCLV As PreoptimizedCLV
    Private MediaManager As SimpleMediaManager
    'Type MyVideoData (title As String,descriptionVideo As String,filename As String)
End Sub

Sub showListVideos
    MediaManager.Initialize
 
    PCLV.Initialize(Me, "PCLV", clvListVideos)                         '<-----  error detected on this part
 
    For i = 0 To listVideos.Size-1
        PCLV.AddItem(350dip, xui.Color_White, listVideos.Get(i))
        Log(listVideos.Get(i))
    Next
    PCLV.ShowScrollBar = False 'no fast scrolling
    'PCLV.ExtraItems = 3
    PCLV.Commit
 
End Sub

I am trying to move to B4a but I have this error :

Logger connected to: motorola moto g power 5G - 2023
--------- beginning of main
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create (first time) **
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
** Activity (main) Resume **
*** Receiver (httputils2service) Receive (first time) ***
Error occurred on line: 36 (PreoptimizedCLV)
java.lang.RuntimeException: Object should first be initialized (JavaObject).
at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:67)
at anywheresoftware.b4j.object.JavaObject.getCurrentClass(JavaObject.java:259)
at anywheresoftware.b4j.object.JavaObject.RunMethod(JavaObject.java:119)
at com.hightechstream.kantutacreator.preoptimizedclv._initialize(preoptimizedclv.java:211)
at com.hightechstream.kantutacreator.b4xlistrequests._showlistvideos(b4xlistrequests.java:825)
at com.hightechstream.kantutacreator.b4xlistrequests$ResumableSub_loadListVideosFromServer.resume(b4xlistrequests.java:208)
at anywheresoftware.b4a.shell.DebugResumableSub$DelegatableResumableSub.resumeAsUserSub(DebugResumableSub.java:48)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:157)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:201)
at anywheresoftware.b4a.shell.DebugResumableSub$DelegatableResumableSub.resume(DebugResumableSub.java:43)
at anywheresoftware.b4a.BA.checkAndRunWaitForEvent(BA.java:275)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:150)
at anywheresoftware.b4a.BA$2.run(BA.java:395)
at android.os.Handler.handleCallback(Handler.java:984)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Looper.loopOnce(Looper.java:238)
at android.os.Looper.loop(Looper.java:357)
at android.app.ActivityThread.main(ActivityThread.java:8088)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:957)

what should do to fix it, the original code is copied by an example on the post:

[B4X] [XUI] CustomListView - lazy loading / virtualization

xCustomListView v1.50 adds an important new event named VisibleRangeChanged. This event is fired whenever the visible range of items changes. We can use this event to defer the items creation. This can significantly improve the performance of lists with complex items. As an example, if we try...

www.b4x.com

any help would be greatly appreciated

 

[omarruben]

found the error, sorry again, when I copied the B4i layout from the designer I pasted the wrong one on the B4A layout