CardDefaults

public object CardDefaults

Contains the default values used by Card

Functions

cardBackgroundPainter

@Composable
public fun cardBackgroundPainter(
    startBackgroundColor: Color =
        MaterialTheme.colors.primary
            .copy(alpha = 0.30f)
            .compositeOver(MaterialTheme.colors.background),
    endBackgroundColor: Color =
        MaterialTheme.colors.onSurfaceVariant
            .copy(alpha = 0.20f)
            .compositeOver(MaterialTheme.colors.background),
    gradientDirection: LayoutDirection = LocalLayoutDirection.current,
): Painter

Creates a Painter for background colors for a Card. Cards typically have a linear gradient for a background. The gradient will be between startBackgroundColor and endBackgroundColor and at an angle of 45 degrees.

Cards should have a content color that contrasts with the background gradient.

Parameters

imageWithScrimBackgroundPainter

@Composable
public fun imageWithScrimBackgroundPainter(
    backgroundImagePainter: Painter,
    backgroundImageScrimBrush: Brush =
        Brush.linearGradient(
            colors =
                listOf(
                    MaterialTheme.colors.surface.copy(alpha = 1.0f),
                    MaterialTheme.colors.surface.copy(alpha = 0f),
                )
        ),
): Painter

Creates a Painter for the background of a Card that displays an Image with a scrim over the image to make sure that any content above the background will be legible.

An Image background is a means to reinforce the meaning of information in a Card, e.g. To help to contextualize the information in a TitleCard

Cards should have a content color that contrasts with the background image and scrim

Parameters