Android Question [Solved] B4XPages - ClosePage error

LucaMs

Expert
Licensed User
B4X:
Sub Class_Globals
    Private Root As B4XView
    Private xui As XUI
   
    Public Page2 As pag2
End Sub

Public Sub Initialize
    Page2.Initialize
End Sub

'This event will be called once, before the page becomes visible.
Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
    B4XPages.AddPage("Page2", Page2)
End Sub

Private Sub B4XPage_Appear
    B4XPages.ShowPage("Page2")
    Wait For (Page2.DoSomething) Complete(Unused As Boolean)
    Log("Completed: " & Unused)
    B4XPages.ClosePage("Page2")  ' <---- this line causes an error at runtime.
End Sub
Error message:
** Activity (main) Resume **
Completed: true
Error occurred on line: 185 (B4XPagesManager)
java.lang.NullPointerException: Attempt to read from field 'java.lang.String b4a.example.b4xpagesmanager$_b4xpageinfo.Id' on a null object reference
at b4a.example.b4xpagesmanager._closepage(b4xpagesmanager.java:256)
at b4a.example.b4xpages._closepage(b4xpages.java:42)
 

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stevel05

Expert
Licensed User
Me too at the beginning of the year.
 
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