Loadersanimated

Pulse grid

A four-by-four matrix of squares brightening in random-feeling waves.

Installation

caveui components are copy-paste Jetpack Compose built entirely on Material 3 — there's no caveui dependency to add. Make sure Material 3 is on your classpath (it ships with the Compose BOM), then copy the Usage snippet below into your project.

kotlin

// build.gradle.kts (module)
dependencies {
    implementation(platform("androidx.compose:compose-bom:2025.06.00"))
    implementation("androidx.compose.material3:material3")
}

Usage

kotlin

val t = rememberInfiniteTransition(label = "pulsegrid")
Column(verticalArrangement = Arrangement.spacedBy(3.dp)) {
    repeat(4) { row ->
        Row(horizontalArrangement = Arrangement.spacedBy(3.dp)) {
            repeat(4) { col ->
                val delay = ((row * col + row + col) * 90) % 720
                val a by t.animateFloat(
                    initialValue = 0.15f,
                    targetValue = 1f,
                    animationSpec = infiniteRepeatable(
                        tween(700, delayMillis = delay),
                        RepeatMode.Reverse,
                    ),
                    label = "a",
                )
                Box(
                    Modifier
                        .size(8.dp)
                        .graphicsLayer { alpha = a }
                        .background(
                            MaterialTheme.colorScheme.primary,
                            RoundedCornerShape(2.dp),
                        ),
                )
            }
        }
    }
}