Android Question Elevation Color

[Blueforcer]

You can change shadow colors on Views starting API 28 (Pie) with
View#setOutlineAmbientShadowColor(int color)
and
View#setOutlineSpotShadowColor(int color)
if you use elevation.

How can i use it in B4A?

i tried

    Dim card As B4XView = xui.CreatePanel("card")
    card.SetLayoutAnimated(0,0,0,100dip,100dip)

    Dim Offset As Float = 5
    card.As(JavaObject).RunMethod("setElevation", Array(Offset))

    card.As(JavaObject).RunMethod("setOutlineAmbientShadowColor",Array(xui.Color_Red))

But its not working:

java.lang.RuntimeException: Method: setOutlineAmbientShadowColor not found in: anywheresoftware.b4a.BALayout

 

[DonManfred]

Card is what? A Panel?

Have you tried to cast it to a View?

    Dim j As JavaObject = Card.As(View)
    j.RunMethod("setOutlineAmbientShadowColor",Array(xui.Color_Red))

 

[Blueforcer]

Card is what? A Panel?

Have you tried to cast it to a View?

    Dim j As JavaObject = Card.As(View)
    j.RunMethod("setOutlineAmbientShadowColor",Array(xui.Color_Red))

Yes its a panel:

Dim card As B4XView = xui.CreatePanel("card")

Casting to a view or to a panel results in the same error

 

[Erel]

Works fine here:

Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
    Dim card As B4XView = xui.CreatePanel("card")
    Root.AddView(card,0,0,100dip,100dip)
    card.Color = xui.Color_Blue
    Dim Offset As Float = 30dip
    card.As(JavaObject).RunMethod("setElevation", Array(Offset))
    card.As(JavaObject).RunMethod("setOutlineAmbientShadowColor",Array(xui.Color_Red))
End Sub

Though I don't see any change in the shadow color.

 

[Blueforcer]

Works fine here:

Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
    Dim card As B4XView = xui.CreatePanel("card")
    Root.AddView(card,0,0,100dip,100dip)
    card.Color = xui.Color_Blue
    Dim Offset As Float = 30dip
    card.As(JavaObject).RunMethod("setElevation", Array(Offset))
    card.As(JavaObject).RunMethod("setOutlineAmbientShadowColor",Array(xui.Color_Red))
End Sub

Though I don't see any change in the shadow color.

Seems like its depending on the emulator i used.
It works on a real device.

We also need to use setOutlineSpotShadowColor in order to show the color

Dim card As B4XView = xui.CreatePanel("card")
    Root.AddView(card,100dip,100dip,100dip,100dip)
    card.Color = xui.Color_Blue
    Dim Offset As Float = 30dip
    card.As(JavaObject).RunMethod("setElevation", Array(Offset))
    card.As(JavaObject).RunMethod("setOutlineAmbientShadowColor",Array(xui.Color_Red))
    card.As(JavaObject).RunMethod("setOutlineSpotShadowColor",Array(xui.Color_Red))

Maybe this function can be added to the B4XView class
like

card.setElevation(30dip,xui.Color_Red)

With

[B4X] [XUI] Elevation shadow

What's the best (cross-platform) way to add elevation/shadows on XUI views?

www.b4x.com