Possible bug causing ANR?

[joey101]

Question

Hi,
Uploading samsung-SM-A536E-Android-13_2024-07-31_105323.logcat.zip…

I am getting an ANR with the latest update, and I am doing the simplest thing I do not know if I am doing anything wrong?

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            LineChart()
        }
    }
}

@Composable
fun LineChart() {
    // Static x and y data
    val staticDataX = listOf(
        LocalDateTime.now().minusMinutes(10).atZone(ZoneId.systemDefault()).toInstant()
            .toEpochMilli(),
        LocalDateTime.now().minusMinutes(8).atZone(ZoneId.systemDefault()).toInstant()
            .toEpochMilli(),
        LocalDateTime.now().minusMinutes(6).atZone(ZoneId.systemDefault()).toInstant()
            .toEpochMilli(),
        LocalDateTime.now().minusMinutes(4).atZone(ZoneId.systemDefault()).toInstant()
            .toEpochMilli(),
        LocalDateTime.now().minusMinutes(2).atZone(ZoneId.systemDefault()).toInstant()
            .toEpochMilli(),
        LocalDateTime.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli()
    )

    val staticDataY = listOf(10, 20, 15, 25, 30, 20)

    // Remember the CartesianChartModelProducer to avoid unnecessary recreation
    val modelProducer = remember { CartesianChartModelProducer() }

    // Add the series to the model producer in a launched effect
    LaunchedEffect(Unit) {
        modelProducer.runTransaction {
            lineSeries {
                series(x = staticDataX, y = staticDataY)
            }
        }
    }

    val timeFormatter = DateTimeFormatter.ofPattern("HH:mm:ss")
    val timeAxisValueFormatter = CartesianValueFormatter { value, _, _ ->
        val instant = Instant.ofEpochMilli(value.toLong())
        val localDateTime = LocalDateTime.ofInstant(instant, ZoneId.systemDefault())
        localDateTime.format(timeFormatter).also { Log.w("Graph", "") }
    }

    val bottomAxis = rememberBottomAxis(valueFormatter = timeAxisValueFormatter)
    val startAxis = rememberStartAxis()
    val zoomState = rememberVicoZoomState(zoomEnabled = true)
    val chartScrollState = rememberVicoScrollState(scrollEnabled = true)
    Log.w("Graph Data", "DataX: $staticDataX")
    Log.w("Graph Data", "DataY: $staticDataY")

    CartesianChartHost(
        chart = rememberCartesianChart(
            rememberLineCartesianLayer(
                lineProvider = LineCartesianLayer.LineProvider.series(
                    rememberLine(
                        fill = LineCartesianLayer.LineFill.single(fill(Color.Yellow))
                    )
                )
            ),
            startAxis = startAxis,
            bottomAxis = bottomAxis,
        ),
        zoomState = zoomState,
        scrollState = chartScrollState,
        modelProducer = modelProducer
    )




}


@Preview(showBackground = true)
@Composable
fun PreviewDynamicLineChart() {

    LineChart()
}



### Vico version(s)

2.0.0-alpha.26

### UI framework(s)

Jetpack Compose

[Gowsky]

Hi @joey101, yes this appears to be a bug. Please open a new issue that can just link to this discussion.

On a side note, you should remember your staticData and the formatters to avoid recreating them on each recomposition.

[Gowsky]

Resolved in #824.