Android Question SOLVED - CUSTOMVIEW from B4XComboBox - Is possible?

[Gianni Sassanelli]

Hi as from subject i need to know if is possible to make a customview starting from B4XComboBox
i'm trying but unsuccessfully

error is this and fire when i try to use SetItems from my page

I attach a simply project to test my contes.

--------- beginning of system
** Service (starter) Start **
** Activity (main) Create (first time) **
Error occurred on line: 59 (B4XComboBox)
java.lang.RuntimeException: Class instance was not initialized (b4xcombobox)
at anywheresoftware.b4a.debug.Debug.shouldDelegate(Debug.java:242)
at b4a.example.b4xcombobox._setitems(b4xcombobox.java:53)
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.debug.Debug.delegate(Debug.java:262)
at b4a.example.b4xmainpage._b4xpage_created(b4xmainpage.java:48)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.debug.Debug.CallSub4(Debug.java:318)
at anywheresoftware.b4a.debug.Debug.CallSubNew2(Debug.java:285)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.keywords.Common.CallSubDebug2(Common.java:1087)
at b4a.example.b4xpagesmanager._createpageifneeded(b4xpagesmanager.java:1070)
at b4a.example.b4xpagesmanager._showpage(b4xpagesmanager.java:427)
at b4a.example.b4xpagesmanager._addpage(b4xpagesmanager.java:247)
at b4a.example.b4xpagesmanager._addpageandcreate(b4xpagesmanager.java:261)
at b4a.example.b4xpagesmanager._initialize(b4xpagesmanager.java:167)
at b4a.example.main._activity_create(main.java:418)
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 b4a.example.main.afterFirstLayout(main.java:105)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:83)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:236)
at android.app.ActivityThread.main(ActivityThread.java:7876)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:656)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:967)

 

[Alexander Stolte]

i need to know if is possible to make a customview starting from B4XComboBox

yes it is possible.

You have a Sleep(0) in the custom view DesignerCreateView sub, then you need a Sleep(0) in the B4XMainPage too, because of the Sleep(0) in the tscmb.

 

[Gianni Sassanelli]

yes it is possible.

You have a Sleep(0) in the custom view DesignerCreateView sub, then you need a Sleep(0) in the B4XMainPage too, because of the Sleep(0) in the tscmb.

thank's Alexander,
i don't have error, but my combo don't ave any item inserted

 

[Gianni Sassanelli]

Solved.
Don't need initialize in Class module
Thank's Alexander

Public Sub Load_Cmb(Input As List)

    'next line is not required
    'xCmb.cmbBox.Initialize("cmbBox")
    xCmb.SetItems(Input)
End Sub