B4J Question Button backround color change

david13

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Licensed User
Hello,

I want to change the button backround color whn i click on the button,

Thanks
 
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Eme Fibonacci

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For a specific button:

B4X: 
Sub Process_Globals
    Private fx As JFX
    Private MainForm As Form
    Private Button1 As Button
End Sub

Sub AppStart (Form1 As Form, Args() As String)

    MainForm = Form1
 
    MainForm.RootPane.LoadLayout("1") 'Load the layout file.
    MainForm.Stylesheets.Add(File.GetUri(File.DirAssets, "style.css"))
    Button1.Id="button1" ' Set ID here
 
    MainForm.Show
 
End Sub

'Create a style.css file
'Using id selector

#button1:pressed {-fx-background-color:   yellow;}

Or for all buttons

B4X: 
'Create a style.css file
'Using "select all" selector

.button:pressed {-fx-background-color:   yellow;}
 
Last edited:
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david13

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Thanks for your fast answer, it's is helpfull but i want the color to stay changed even when I stop the button presse, thanks again
 
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Eme Fibonacci

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david13 said:
Thanks for your fast answer, it's is helpfull but i want the color to stay changed even when I stop the button presse, thanks again
Click to expand...

B4X: 
Sub Button1_Click
    
    Dim s As Button=Sender
    s.Style="-fx-background-color:   blue;"
        
End Sub
 
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david13

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Erel said:
Never set the style property directly.

It should be CSSUtils.SetBackgroundColor. It is simpler and will not remove all other style attributes.
Click to expand...
Thanks Erel, Can you write the above exemple with CSSUtils.SetBackgroundColor so I can Understand, thanks
 
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DonManfred

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