AAChartModel-Swift / AAInfographics — trouble displaying a chart - ios

Question

I'm trying to figure out how to use the AAChartModel Swift library.
I imported it, and did import AAInfographics.
I can't manage to get a chart to display. I have the following code as an onAppear on a VStack:
.onAppear {
let chartModel = AAChartModel()
.chartType(.bar)
.title("Polar Area Chart")
.subtitle("A simple polar area chart")
.dataLabelsEnabled(true)
.categories(["Jan", "Feb", "Mar", "Apr", "May", "Jun"])
.yAxisTitle("Y-axis Title")
.series([
AASeriesElement()
.name("Polar Area Chart")
.data([7.0, 6.9, 2.5, 14.5, 18.2, 21.5])
])
let chartView = AAChartView()
chartView.frame = CGRect(x: 0,
y: 60,
width: 200,
height: 200)
chartView.aa_drawChartWithChartModel(chartModel)
}
I get the following printed to console (ends with 👻👻👻 AAChartView was destroyed!!!):
-----------🖨🖨🖨 console log AAOptions JSON information of AAChartView 🖨🖨🖨-----------:
{
"series" : [
{
"data" : [
7,
6.9000000000000004,
2.5,
14.5,
18.199999999999999,
21.5
],
"name" : "Polar Area Chart"
}
],
"legend" : {
"enabled" : true
},
"xAxis" : {
"categories" : [
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun"
],
"visible" : true,
"labels" : {
"enabled" : true
},
"title" : {
"text" : ""
}
},
"tooltip" : {
"shared" : true,
"enabled" : true
},
"subtitle" : {
"text" : "A simple polar area chart"
},
"chart" : {
"pinchType" : "none",
"panning" : true,
"type" : "bar"
},
"colors" : [
"#1e90ff",
"#ef476f",
"#ffd066",
"#04d69f",
"#25547c"
],
"plotOptions" : {
"series" : {
"stacking" : "",
"animation" : {
"duration" : 800,
"easing" : 0
},
"dataLabels" : {
"enabled" : true
}
},
"bar" : {
"borderWidth" : 0,
"borderRadius" : 0
}
},
"credits" : {
"enabled" : false
},
"yAxis" : {
"title" : {
"text" : "Y-axis Title"
},
"visible" : true,
"lineWidth" : 0,
"labels" : {
"enabled" : true
},
"gridLineWidth" : 0.60000002384185791
},
"title" : {
"text" : "Polar Area Chart"
}
}
👻👻👻 AAChartView was destroyed!!!