ripple_effect_seg1.kt

@Composable
fun MyScreen(modifier: Modifier = Modifier) {
  // ...
  // ... other variables
  // ...
  val configuration = LocalConfiguration.current
  val scope = rememberCoroutineScope()
  val interactionSource = remember { MutableInteractionSource() }
  val indication = rememberRipple(
    // if set false, the ripple effect will not be cropped to the button.
    bounded = true,
    // if you want to spread to stop right at the edges of your targeted composable,
    // take the longest side divided by two, in this case the row width is the screen width.
    radius = configuration.screenWidthDp.dp / 2,
  )
  // used later to change Dp unit to Pixels using .toPx()
  val density = LocalDensity.current

  LaunchedEffect(Unit) {
    with(density) {
      scope.launch {
        // wait a little bit for user to focus on the screen
        delay(800)
        val centerX = configuration.screenWidthDp.dp / 2
        val centerY = 64.dp / 2
        // simulate a press for the targeted setting tile
        val press = PressInteraction.Press(Offset(centerX.toPx(), centerY.toPx()))
        interactionSource.emit(press)
        // wait a little bit for the effect to animate
        delay(400)
        // release the effect
        val release = PressInteraction.Release(press)
        interactionSource.emit(release)
      }
    }
  }
  
  // ...
  // ... The rest of the code in segment 2
  // ...