Jetpack Compose

Jetpack Compose is a modern UI framework for Android applications written in Kotlin.

Self-updating widget

@Composable  
fun Time() {  
    var dt by remember { mutableStateOf("") }  
  
    LaunchedEffect(key1 = Unit) {  
        while (true) {  
            dt = LocalDateTime.now().toString()  
            delay(500)  
        }  
    }  
  
    Text(text = dt)  
}

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