any ideas on how to implement a fading edge (the i...

# compose

[mgrazianodecastro]

any ideas on how to implement a fading edge (the items fade way in the edge) into a lazy column with transparent background?

[mgrazianodecastro]

I've figured out. Solution:

Modifier.graphicsLayer { alpha = 0.99F }
                .drawWithContent {
                    val colors = mutableListOf(Color.Transparent)
                        .apply { repeat(50){ add(Color.Black) } }
                        .apply { add(Color.Transparent) }
                    drawContent()
                    drawRect(
                        brush = Brush.verticalGradient(colors.toList()),
                        blendMode = BlendMode.DstIn
                    )
                }

the trick was the graphicsLayer alpha = 0.99f. Explanation: https://stackoverflow.com/questions/66762472/how-to-add-fading-edge-effect-to-android-jetpack-compose-column-or-row

[Alex Vanyo]

I think there are some new APIs in 1.4.0 coming that allow you to be more explicit than the 0.99f trick: https://developer.android.com/jetpack/compose/graphics/draw/modifiers#compositing-strategy

[mgrazianodecastro]

testing here, the CompositingStrategy.Always also works! But I need to study to understand them better