protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
Name = Intent.Extras.GetString("name");
Address = Intent.Extras.GetString("address");
DatasetName = Intent.Extras.GetString("datasetName");
DatasetAlias = Intent.Extras.GetString("datasetAlias");
TimestampOffset = Intent.Extras.GetLong("timestampOffset");
var sourceUnit = Intent.Extras.GetString("datasetSourceUnit");
var targetUnit = Intent.Extras.GetString("datasetTargetUnit");
Title = $"{Name} ({Address})";
try
{
Converter = UnitConverter.Create(sourceUnit, targetUnit);
Api = new ApiClient(Address);
Api.Call <Api.Responses.Dataset>(new Api.Requests.Dataset(DatasetName, null, null), Canceller.Token)
.ContinueWith(t =>
{
if (t.IsCanceled)
{
return;
}
if (t.IsFaulted)
{
Log.Error(TAG, $"Failed to fetch dataset {DatasetName} with error {t.Exception.Flatten().InnerException}.");
Toast.MakeText(this, "Failed to get performance information.", ToastLength.Short).Show();
return;
}
RunOnUiThread(() =>
{
// Change units.
var dataset = t
.Result
.dataset
.Select(d => new DataPoint
{
Timestamp = d.Timestamp - TimestampOffset,
Value = Converter.ChangeUnits(d.Value),
})
.ToArray();
var minValue = dataset.Min(d => d.Value);
var min = dataset.First(d => d.Value == minValue);
var maxValue = dataset.Max(d => d.Value);
var max = dataset.First(d => d.Value == maxValue);
var width = maxValue - minValue;
var datasetMap = dataset.ToDictionary(d => new BarModel
{
Value = d.Value,
ValueCaptionHidden = true,
});
var chart = new BarChartView(this)
{
ItemsSource = datasetMap.Keys,
BarWidth = 3,
BarOffset = 1,
MinimumValue = min.Value - width / 2,
MaximumValue = max.Value + width / 2,
};
chart.AutoLevelsEnabled = false;
chart.AddLevelIndicator(min.Value, StringizeValue(min.Value));
chart.AddLevelIndicator(max.Value, StringizeValue(max.Value));
chart.BarClick += (sender, args) => {
DataPoint data = null;
if (!datasetMap.TryGetValue(args.Bar, out data))
{
return;
}
new AlertDialog.Builder(this)
.SetCancelable(false)
.SetTitle(UIConversion.FromMilliseconds(data.Timestamp).ToString())
.SetMessage(StringizeValue(data.Value))
.SetPositiveButton("OK", (s, e) => { })
.Create()
.Show();
};
SetContentView(chart, new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent)
);
});
});
}
catch (Exception e)
{
Toast.MakeText(this, $"Failed to get performance information for {DatasetName} for {Title}", ToastLength.Short).Show();
Log.Error(TAG, $"Failed to start activity for dataset {DatasetName} with error {e}.");
Finish();
}
}
