B4J Question B4J: background work (service)

Erel

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• Dec 25, 2013

• #2

How to make for UI app ?

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Not sure what you mean.

Searching forum is a pain now, when Android and B4J resualts are together.

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You should add 'b4j' when searching. For example http://www.b4x.com/android/forum/pages/results/?query=b4j+dbutils&page=1
It will "boost" b4j results. B4A results can also be relevant as the two tools are quite similar.

A B4A service is similar to a B4J code module.

 

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peacemaker

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• Dec 25, 2013

• #3

Sure using "b4j", anyway.
I mean - how to make sure that B4J GUI app is working in background after MainForm.Close ?
Or how to arrange working as service, with no forms visible ?

 

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Erel

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• Dec 26, 2013

• #4

You can create a non-UI app if you don't want to show any UI.

You can use this code to prevent the app from closing when the last form is closed:

B4X:

Dim platform As JavaObject
platform.InitializeStatic("javafx.application.Platform")
platform.RunMethod("setImplicitExit", Array As Object(false))

Both Android services and activities behave the same as B4J code modules.

 

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peacemaker

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• Dec 26, 2013

• #5

Thanks, will try.
No, non-UI app is not needed. It needs a standard UI app that started and working in background, and able to show any form, or msgbox...
Maybe having an icon in the tray - standard Windows app.

 

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Erel

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• Dec 26, 2013

• #6

The system tray is not supported in JavaFX 2.2. It should be supported in the next version.

 

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