Android Question [Solved] How to call a public variable at B4XPages from Another B4xPages

AndroidMadhu · May 15, 2021

Hello,
I am not able to call a public variable from another B4xPages.
The below is the code which I am calling from another page. :

B4X:

Dim mp As B4XMainPage = B4XPages.GetPage("MainPage")
Log(mp.cloc)
Log(B4XPages.MainPage.cloc)

The variable I declared at MainPage

B4X:

Sub Process_Globals
Public ActionBarHomeClicked As Boolean
Public cloc As String
End Sub

But I am not able to call cloc from another page.

Please advice

Thanks

mangojack · May 15, 2021

I have not played with B4XPages much ...
but I am sure any public variables (or Views) , should be declared in the Page Class_Globals , Not in the Main Activity Process_Globals.

In your case Public cloc As String should be declared in B4XMainPage Class_Globals.

Bladimir Silva Toro · May 15, 2021

Hello @AndroidMadhu

The best way to do this is with a code module.

B4X:

Sub Process_Globals
    Dim Name As String
End Sub

The variables of this module can be called anywhere in your application.

B4X:

Sub AddName
    MiModulo.Name="Bladimir"
End Sub

This is a good solution.

josejad · May 15, 2021

From this thread:

We can directly access public global variables of other pages.

For example:

B4XMainPage:

Sub Class_Globals
    Private Root As B4XView 'ignore
    Private xui As XUI 'ignore
    
    Public MyVariable As string

End Sub

In other pages, you can do:

B4X:

Dim variable as string
variable = B4XPages.MainPage.MyVariable

AndroidMadhu · May 18, 2021

José J. Aguilar said:
We can directly access public global variables of other pages.

Thanks @José J. Aguilar .. Understood. Fixed the issue.

Thanks again for your support.

Android Question [Solved] How to call a public variable at B4XPages from Another B4xPages

AndroidMadhu

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mangojack

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Bladimir Silva Toro

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josejad

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AndroidMadhu

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