AndroidJetpack/Jetpack-Compose-Playground/docs/material/floatingactionbutton.md

FloatingActionButton

fun FloatingActionButtonDemo() {
    FloatingActionButton(onClick = { /*do something*/}) {
        Text("FloatingActionButton")
    }
}

ExtendedFloatingActionButton

@Composable
fun ExtendedFloatingActionButtonDemo() {
    ExtendedFloatingActionButton(
        icon = { Icon(Icons.Filled.Favorite,"") },
        text = { Text("FloatingActionButton") },
        onClick = { /*do something*/ },
        elevation = FloatingActionButtonDefaults.elevation(8.dp)
    )
}

See also:

• Official Docs
• [Full Example Code]({{ site.samplefolder }}/material/floatingactionbutton/FabDemo.kt)