IllegalArgumentException with CurveLineChart

[Ola-jed]

I am using CurveLineChart to display some data.

Here is the code that displays the chart

CurveLineChart(
    modifier = Modifier
        .fillMaxWidth()
        .padding(vertical = 10.dp),
    lineData = lineData,
    chartColors = listOf(
        MaterialTheme.colors.secondary,
        MaterialTheme.colors.secondary
    ),
    lineColors = listOf(
        MaterialTheme.colors.primary,
        MaterialTheme.colors.primary
    )
)
// Where lineData is
// [LineData(xValue=Oct 27, 2022, yValue=0.0), LineData(xValue=Oct 28, 2022, yValue=0.0), ......]
// the other values have yValue equals to 0

When I run the app, I have the following stacktrace

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.ola.myapp, PID: 7867
    java.lang.IllegalArgumentException
        at android.graphics.LinearGradient.nativeCreate(Native Method)
        at android.graphics.LinearGradient.createNativeInstance(LinearGradient.java:158)
        at android.graphics.Shader.getNativeInstance(Shader.java:191)
        at android.graphics.Paint.getNativeInstance(Paint.java:726)
        at android.graphics.BaseRecordingCanvas.drawPath(BaseRecordingCanvas.java:292)
        at androidx.compose.ui.graphics.AndroidCanvas.drawPath(AndroidCanvas.android.kt:242)
        at androidx.compose.ui.graphics.drawscope.CanvasDrawScope.drawPath-GBMwjPU(CanvasDrawScope.kt:473)
        at androidx.compose.ui.node.LayoutNodeDrawScope.drawPath-GBMwjPU(Unknown Source:26)
        at androidx.compose.ui.graphics.drawscope.DrawScope.drawPath-GBMwjPU$default(DrawScope.kt:800)
        at com.himanshoe.charty.line.CurveLineChartKt$CurveLineChart$5.invoke(CurveLineChart.kt:187)
        at com.himanshoe.charty.line.CurveLineChartKt$CurveLineChart$5.invoke(CurveLineChart.kt:112)
        at androidx.compose.ui.draw.DrawBackgroundModifier.draw(DrawModifier.kt:104)
        at androidx.compose.ui.node.DrawEntity.draw(DrawEntity.kt:98)
        at androidx.compose.ui.node.LayoutNodeDrawScope.drawContent(LayoutNodeDrawScope.kt:46)
        at androidx.compose.ui.draw.DrawBackgroundModifier.draw(DrawModifier.kt:105)
        at androidx.compose.ui.node.DrawEntity.draw(DrawEntity.kt:98)
        at androidx.compose.ui.node.LayoutNodeWrapper.drawContainedDrawModifiers(LayoutNodeWrapper.kt:316)
        at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:306)
        at androidx.compose.ui.node.ModifiedLayoutNode.performDraw(ModifiedLayoutNode.kt:139)
        at androidx.compose.ui.node.LayoutNodeWrapper.drawContainedDrawModifiers(LayoutNodeWrapper.kt:314)
        at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:306)
        at androidx.compose.ui.node.ModifiedLayoutNode.performDraw(ModifiedLayoutNode.kt:139)
        at androidx.compose.ui.node.LayoutNodeWrapper.drawContainedDrawModifiers(LayoutNodeWrapper.kt:314)
        at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:306)
        at androidx.compose.ui.node.ModifiedLayoutNode.performDraw(ModifiedLayoutNode.kt:139)
        at androidx.compose.ui.node.LayoutNodeWrapper.drawContainedDrawModifiers(LayoutNodeWrapper.kt:314)
        at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:306)
        at androidx.compose.ui.node.ModifiedLayoutNode.performDraw(ModifiedLayoutNode.kt:139)
        at androidx.compose.ui.node.LayoutNodeWrapper.drawContainedDrawModifiers(LayoutNodeWrapper.kt:314)
        at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:306)
        at androidx.compose.ui.node.ModifiedLayoutNode.performDraw(ModifiedLayoutNode.kt:139)
        at androidx.compose.ui.node.LayoutNodeWrapper.drawContainedDrawModifiers(LayoutNodeWrapper.kt:314)
        at androidx.compose.ui.node.LayoutNodeWrapper.draw(LayoutNodeWrapper.kt:306)
        at androidx.compose.ui.node.LayoutNode.draw$ui_release(LayoutNode.kt:839)
        at androidx.compose.ui.node.InnerPlaceable.performDraw(InnerPlaceable.kt:90)
        at androidx.compose.ui.node.LayoutNodeWrapper.drawContainedDrawModifiers(LayoutNodeWrapper.kt:314)
        at androidx.compose.ui.node.LayoutNodeWrapper.access$drawContainedDrawModifiers(LayoutNodeWrapper.kt:60)
        at androidx.compose.ui.node.LayoutNodeWrapper$invoke$1.invoke(LayoutNodeWrapper.kt:336)
        at androidx.compose.ui.node.LayoutNodeWrapper$invoke$1.invoke(LayoutNodeWrapper.kt:335)
        at androidx.compose.runtime.snapshots.Snapshot$Companion.observe(Snapshot.kt:2101)
        at androidx.compose.runtime.snapshots.SnapshotStateObserver.observeReads(SnapshotStateObserver.kt:110)
        at androidx.compose.ui.node.OwnerSnapshotObserver.observeReads$ui_release(OwnerSnapshotObserver.kt:78)
        at androidx.compose.ui.node.LayoutNodeWrapper.invoke(LayoutNodeWrapper.kt:335)
        at androidx.compose.ui.node.LayoutNodeWrapper.invoke(LayoutNodeWrapper.kt:60)
        at androidx.compose.ui.platform.RenderNodeApi29.record(RenderNodeApi29.android.kt:180)

It looks like this error is related to the gradient but I get the same error even if I pass one color to the chart when using lineColor and chartColor

[hi-manshu]

Hey thanks for letting me know will check!

[Ola-jed]

I have done some tests and i have noticed that this error appears when all the values are 0

[armanTabib]

@Ola-jed
This is part of my data and this bug happens:
Edit:
The strings are empty and thats why it happens.

Though it still happens when I set :

chartColors = CurvedLineChartColors(
                        backgroundColors = if(marketCapChange.value > 0) listOf(Color(0xFF218842), Color(0xFF218842)) else listOf(Color(0xffFCEEEE), Color(0xffFCEEEE))
                    )