Android Question CLV Index and msgbox

[Sasuke Sama]

Hi
I have a msgbox that when the user chose Yes the app gets the current clv index from a label click and then do other stuff but im getting this error

java.lang.ClassCastException: android.app.AlertDialog cannot be cast to android.view.View
    at anywheresoftware.b4a.objects.B4XViewWrapper.asViewWrapper(B4XViewWrapper.java:68)
    at anywheresoftware.b4a.objects.B4XViewWrapper.getParent(B4XViewWrapper.java:165)
    at b4a.example3.customlistview._getitemfromview(customlistview.java:408)
    at seven.zero.nvp.main$ResumableSub_delete_Click.resume(main.java:976)
    at anywheresoftware.b4a.BA.checkAndRunWaitForEvent(BA.java:245)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:185)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:171)
    at anywheresoftware.b4a.keywords.Common$1.onClick(Common.java:481)
    at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:172)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:201)
    at android.app.ActivityThread.main(ActivityThread.java:6806)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)
java.lang.ClassCastException: android.app.AlertDialog cannot be cast to android.view.View

when i try to excute this line

Dim index As Int = CLV1.GetItemFromView(Sender)

It work fine without the msgbox

Here is the full code

Dim xui As XUI


    Dim sf As Object = xui.Msgbox2Async("Delete file?", "", "Yes", "", "No", Null)
    Wait For (sf) Msgbox_Result (Result As Int)
    If Result = xui.DialogResponse_Positive Then
            Dim index As Int = CLV1.GetItemFromView(Sender)
Log(Index)
End If

 

[LucaMs]

It happens because the Sender is the xui.Msgbox2Async, cannot be a View from your CLV (that way).

 

[Sasuke Sama]

It happens because the Sender is the xui.Msgbox2Async, cannot be a View from your CLV (that way).

its not xui related as it gives the same error with normal msgbox

 

[DonManfred]

Help us helping you. Upload a small project which shows the issue

 

[LucaMs]

its not xui related as it gives the same error with normal msgbox

The Sender is the "object" (almost always a View) that has fired the event, so to get the item "from Sender", you have to Click, Touch or other on a View which is part of the item. You are instead waiting for an event fired by a MsgBox (xui or not), so the Sender is part of this one.

 

[Sasuke Sama]

Help us helping you. Upload a small project which shows the issue

The project is currently empty and the code i posted is the only code in it at the current stage of the project

 

[Sasuke Sama]

The Sender is the "object" (almost always a View) that has fired the event, so to get the item "from Sender", you have to Click, Touch or other on a View which is part of the item. You are instead waiting for an event fired by a MsgBox (xui or not), so the Sender is part of this one.

So ...
How can i get the current clv index with a msgbox? Any samples perhaps?

 

[LucaMs]

Given your code in post # 1, I suppose your CLV shows a list of files and you want to give the user the option to delete a (selected) file.
So you should show your msgbox (async) inside the CLV1_ItemClick(Index As Int, Value As Object) event, which returns the Index of the Item clicked and also the Value you associated to that Item. Or in the Click event of the clicked View, like: Sub lblFileName_Click, and here you can useCLV1.GetItemFromView(Sender).