AnimationTest.kt

import androidx.compose.animation.core.animateFloatAsState
import androidx.compose.animation.core.tween
import androidx.compose.desktop.Window
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.material.Text
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.rotate
import androidx.compose.ui.unit.sp

// Preview
fun main() {
    Window {

        var enabled by remember { mutableStateOf(true) }

        val targetValue = if (enabled) {
            0f
        } else {
            180f
        }

        val animatedValue by animateFloatAsState(
            targetValue = targetValue,
            animationSpec = tween(2000),
            finishedListener = {
                enabled = !enabled
            }
        )

        Box(
            modifier = Modifier
                .fillMaxSize(),
            contentAlignment = Alignment.Center
        ) {
            Text(
                modifier = Modifier.rotate(animatedValue),
                text = "Test",
                fontSize = 30.sp
            )
        }

    }
}