border

Modifier in Compose Foundation

Modify element to add border with appearance specified with a [border] and a [shape] and clip it.

Last updated: 2024-10-22 13:47

Installation

dependencies {
   implementation("androidx.compose.foundation:foundation:1.8.0-alpha04")
}

Overloads

@Stable
fun Modifier.border(border: BorderStroke, shape: Shape = RectangleShape)

Parameters

name	description
border	[BorderStroke] class that specifies border appearance, such as size and color
shape	shape of the border

@Stable
fun Modifier.border(width: Dp, color: Color, shape: Shape = RectangleShape)

Parameters

name	description
width	width of the border. Use [Dp.Hairline] for a hairline border.
color	color to paint the border with
shape	shape of the border

@Stable
fun Modifier.border(width: Dp, brush: Brush, shape: Shape)

Parameters

name	description
width	width of the border. Use [Dp.Hairline] for a hairline border.
brush	brush to paint the border with
shape	shape of the border

Code Examples

BorderSample

@Composable
fun BorderSample() {
    Text("Text with  square border", modifier = Modifier.border(4.dp, Color.Magenta).padding(10.dp))
}

BorderSampleWithDataClass

@Composable
fun BorderSampleWithDataClass() {
    Text(
        "Text with gradient border",
        modifier =
            Modifier.border(border = BorderStroke(2.dp, Color.Blue), shape = CutCornerShape(8.dp))
                .padding(10.dp)
    )
}

BorderSampleWithBrush

@Composable
fun BorderSampleWithBrush() {
    val gradientBrush =
        Brush.horizontalGradient(
            colors = listOf(Color.Red, Color.Blue, Color.Green),
            startX = 0.0f,
            endX = 500.0f,
            tileMode = TileMode.Repeated
        )
    Text(
        "Text with gradient border",
        modifier =
            Modifier.border(width = 2.dp, brush = gradientBrush, shape = CircleShape).padding(10.dp)
    )
}

BorderSampleWithDynamicData

@Composable
fun BorderSampleWithDynamicData() {
    val widthRange = (1..10)
    var width by remember { mutableStateOf((widthRange.random()).dp) }

    val shapes = remember { listOf(CutCornerShape(8.dp), CircleShape, RoundedCornerShape(20)) }
    var selectedShape by remember { mutableStateOf(shapes.random()) }

    val colors =
        listOf(
            Color.Black,
            Color.DarkGray,
            Color.Gray,
            Color.LightGray,
            Color.White,
            Color.Red,
            Color.Blue,
            Color.Green,
            Color.Yellow,
            Color.Cyan,
            Color.Magenta
        )
    var gradientBrush by remember {
        mutableStateOf(
            Brush.horizontalGradient(
                colors = listOf(colors.random(), colors.random(), colors.random()),
                startX = 0.0f,
                endX = 500.0f,
                tileMode = TileMode.Repeated
            )
        )
    }

    Column(Modifier.padding(2.dp)) {
        Text(text = "Update border with buttons")
        Row {
            Button(
                modifier = Modifier.width(60.dp),
                onClick = { width = (widthRange.random()).dp }
            ) {
                Text(fontSize = 8.sp, text = "width")
            }
            Button(
                modifier = Modifier.width(60.dp),
                onClick = {
                    gradientBrush =
                        Brush.horizontalGradient(
                            colors = listOf(colors.random(), colors.random(), colors.random()),
                            startX = 0.0f,
                            endX = 500.0f,
                            tileMode = TileMode.Repeated
                        )
                }
            ) {
                Text(fontSize = 8.sp, text = "brush")
            }
            Button(
                modifier = Modifier.width(60.dp),
                onClick = { selectedShape = shapes.random() }
            ) {
                Text(fontSize = 8.sp, text = "shape")
            }
        }
        Text(
            "Dynamic border",
            modifier =
                Modifier.border(width = width, brush = gradientBrush, shape = selectedShape)
                    .padding(10.dp)
        )
    }
}