null pointer error

  1. D

    Android Question NullPointerException Error

    Why does this error occur? Error in this line: Drawer.CenterPanel.AddView(Content11,0,0,100%x,100%y) 'Dim Drawer As B4XDrawer Exception java.lang.NullPointerException: Attempt to invoke virtual method 'void anywheresoftware.b4a.objects.PanelWrapper.AddView(android.view.View, int, int, int...
    • david7374
    • Thread
    • java.lang.nullpointerexception null pointer error nullpointerexception
    • Replies: 5
    • Forum: Android Questions
  2. rleiman

    Android Question [Solved] - Null pointer error with Msgbox2Async

    Greetings, This example coding is from the community search for Msgbox2Async. When I run an app with the code inserted, the app crashes with a null pointer exception. Can you tell me what the example coding I found is missing? Thanks. Msgbox2Async("Question?", "Title", "Yes", "Cancel"...
  3. rleiman

    Android Question [SOLVED] - [B4X] CLVSelections null pointer error when trying to set the selection mode

    Greetings, I'm trying out this class in B4A and get a null pointer error when trying to set the selection mode. The coding is based on the sample code from where I got the class from. java.lang.NullPointerException: Attempt to invoke virtual method 'int...
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