Android Question B4a Activity Touch and B4j MainForm Touch

rodmcm · Feb 15, 2022

The examples show basically the same idea in B4a and B4j.
Four panels on a background

In B4a the Activity_Touch is not active when the mouse is run over a panel
in B4j MainForm_Touch is active when the mouse is run over a panel

Is there a way to stop the later, ie stop MainForm_touch operating when over a panel

Erel · Feb 16, 2022

Why waste your time with activities and forms? Create a single B4XPages project.

The simplest solution in this case is to check the target view in MouseMoved (and the other similar events):

B4X:

Private Sub MainForm_MouseMoved (EventData As MouseEvent)
    Dim v As B4XView = EventData.As(JavaObject).RunMethod("getTarget", Null)
    If v = MainForm.RootPane Then
        Log(EventData.X)
    End If
End Sub

This is only needed for the MainForm.

rodmcm · Feb 16, 2022

Yes thankyou Erel, aware of B4X pages, what I was exploring was the interaction between various commands and what takes precedence. For argument sake a Panel_Touch in B4J takes precedence over the MainForm-Touch, so you can use it to block the MainForm_Touch actions.

Are there any sources of information that explains all of this? I must admit the more I use B4x I realize I am using snippets or constructs that I really don't have the understanding as to why they operate, not having had formal computer training

Perhaps there is a place for a forum about learning resources.

Android Question B4a Activity Touch and B4j MainForm Touch

rodmcm

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Erel

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Android Question B4a Activity Touch and B4j MainForm Touch

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