void UpdatePowerMonitorChart()
{
var chart = FindViewById <LineChart>(Resource.Id.lineChart);
Entry[] values = new Entry[powerHistory.values.Length];
for (int i = 0; i < values.Count(); i++)
{
values[i] = new Entry(i, powerHistory.values[i]);
}
LineDataSet set1;
if (chart.Data != null &&
chart.Data.DataSetCount > 0)
{
set1 = (LineDataSet)chart.Data.GetDataSetByIndex(0);
set1.Values = values;
chart.Data.NotifyDataChanged();
chart.NotifyDataSetChanged();
}
else
{
// create a dataset and give it a type
set1 = new LineDataSet(values, "Power Usage");
set1.SetMode(LineDataSet.Mode.CubicBezier);
set1.CubicIntensity = 0.2f;
set1.SetDrawFilled(true);
set1.SetDrawCircles(false);
set1.LineWidth = 1.6f;
//set1.CircleRadius = 4f;
//set1.SetCircleColor(Color.White);
set1.HighLightColor = Color.Rgb(244, 117, 117);
set1.Color = Color.ParseColor("#68B9C0");
set1.FillColor = Color.ParseColor("#68B9C0");
set1.FillAlpha = 100;
set1.SetDrawHorizontalHighlightIndicator(false);
set1.SetDrawVerticalHighlightIndicator(false);
// set1.FillFormatter = new IFillFormatter() {
// public float getFillLinePosition(ILineDataSet dataSet, LineDataProvider dataProvider)
// {
// return chart.getAxisLeft().getAxisMinimum();
// }
//};
// create a data object with the data sets
LineData data = new LineData(set1);
//data.setValueTypeface(tfLight);
data.SetValueTextSize(12f);
data.SetDrawValues(false);
// set data
chart.Data = data;
}
chart.SetViewPortOffsets(0, 0, 0, 0);
chart.Invalidate();
}
public LineChart SetupChartData(DateTime startDate, DateTime endDate)
{
//when first entered into this activity the default is the past weeks data, so we need to get that
Globals dbHelp = null;
try
{
if (_lineChart != null)
{
Log.Info(TAG, "SetupChartData: Found _progressChart");
DateTime loopDate = startDate;
//this next array will contain the string labels for the X axis, which is the date of the point
List <string> pointsDates = new List <string>();
if (GlobalData.MoodListItems != null)
{
dbHelp = new Globals();
dbHelp.OpenDatabase();
LineDataSet moodDataSet = null;
List <ILineDataSet> moodLineDataSets = new List <ILineDataSet>();
var daysDifference = endDate.Subtract(startDate).Days;
Log.Info(TAG, "SetupChartData: Attempting to get " + daysDifference.ToString() + " days data from " + startDate.ToShortDateString() + " to " + endDate.ToShortDateString());
for (var a = 0; a <= daysDifference; a++)
{
pointsDates.Add(loopDate.ToShortDateString());
Log.Info(TAG, "SetupChartData: Added '" + loopDate.ToShortDateString() + " to date list");
loopDate = loopDate.AddDays(1);
}
Log.Info(TAG, "SetupChartData: MoodListItems global list contains " + GlobalData.MoodListItems.Count.ToString() + " items");
foreach (var item in GlobalData.MoodListItems)
{
Log.Info(TAG, "SetupChartData: Attempting to retrieve data points for " + item.MoodName.Trim());
moodDataSet = GetDataPoints(item.MoodId, startDate, endDate, item.MoodName);
if (moodDataSet != null)
{
int[] colorList = new int[1] {
GlobalData.ColourList[item.MoodId - 1]
};
moodDataSet.SetColors(colorList);
moodLineDataSets.Add(moodDataSet);
Log.Info(TAG, "SetupChartData: Added " + item.MoodName + " to data sets list");
}
else
{
Log.Info(TAG, "SetupChartData: No data set returned for " + item.MoodName + "!");
}
}
LineData moodLineData = new LineData(pointsDates, moodLineDataSets);
Log.Info(TAG, "SetupChartData: Created LineData containing date list and mood data sets");
_lineChart.Data = moodLineData;
_lineChart.Legend.WordWrapEnabled = true;
_lineChart.SetDescriptionColor(Color.White);
_lineChart.SetDescription(_activity.GetString(Resource.String.MyProgressGraphDescription) + " " + startDate.ToShortDateString() + " - " + endDate.ToShortDateString());
_lineChart.XAxis.TextColor = Color.White;
_lineChart.XAxis.AxisLineColor = Color.White;
_lineChart.XAxis.GridColor = Color.White;
_lineChart.AxisLeft.AxisLineColor = Color.White;
_lineChart.AxisRight.AxisLineColor = Color.White;
_lineChart.AxisLeft.GridColor = Color.White;
_lineChart.AxisRight.GridColor = Color.White;
_lineChart.AxisLeft.TextColor = Color.White;
_lineChart.AxisRight.TextColor = Color.White;
_lineChart.AxisLeft.TextSize = 10f;
_lineChart.AxisRight.TextSize = 10f;
var yaxis1 = _lineChart.GetAxis(YAxis.AxisDependency.Left);
yaxis1.AxisLineColor = Color.White;
yaxis1.GridColor = Color.White;
yaxis1.TextColor = Color.White;
yaxis1.TextSize = 10f;
var yaxis2 = _lineChart.GetAxis(YAxis.AxisDependency.Right);
yaxis2.AxisLineColor = Color.White;
yaxis2.GridColor = Color.White;
yaxis2.TextColor = Color.White;
yaxis1.TextSize = 10f;
_lineChart.SetBorderColor(Color.White);
moodLineData.SetValueTextColor(Color.White);
moodLineData.SetValueTextSize(10f);
_lineChart.Invalidate();
dbHelp.CloseDatabase();
Log.Info(TAG, "SetupChartData: Finished retrieving chart data");
}
}
}
catch (Exception e)
{
if (dbHelp != null)
{
if (dbHelp.GetSQLiteDatabase().IsOpen)
{
dbHelp.CloseDatabase();
}
}
Log.Error(TAG, "SetupChartData: Exception - " + e.Message);
if (GlobalData.ShowErrorDialog)
{
ErrorDisplay.ShowErrorAlert(_activity, e, "Setting data for chart", "ProgressChartHelper.SetupChartData");
}
}
return(_lineChart);
}