@Override
public void onDataFetched(List<Meter> meters) {
mMeters = meters;
mSwipeRefreshLayout.setRefreshing(false);
showProgress(false);
// only reading one meter.
// TODO: graph multiple meters?
Meter meter = mMeters.get(0);
setData(meter.getReadings().size(), 1000);
}
private void setData(int count, float range) {
// only using first meter for now.
// TODO: graph multiple meters?
Meter meter = mMeters.get(0);
List<MeterReading> readings = meter.getReadings();
ArrayList<Entry> averageEntries = new ArrayList<Entry>();
// build up X-axis labels; e.g., dates.
// build up Y-axis with values;
// skip first date as we can't determine consumption.
ArrayList<String> xVals = new ArrayList<String>();
ArrayList<BarEntry> yVals1 = new ArrayList<BarEntry>();
float runningTotal = 0;
float dailyAverage;
for (int lv = 1; lv < count; lv++) {
MeterReading prevReading = readings.get(lv - 1);
MeterReading currReading = readings.get(lv);
xVals.add(removeYearFromDate(currReading.getTimeStamp()));
float val = (currReading.getConsumption() - prevReading.getConsumption()) * 10;
yVals1.add(new BarEntry(val, lv - 1));
// calc & store daily average.
runningTotal += val;
dailyAverage = runningTotal / lv;
averageEntries.add(new Entry(dailyAverage, lv - 1));
}
// TODO: allow name to be updated.
BarDataSet set1 = new BarDataSet(yVals1, "mine");
set1.setBarSpacePercent(35f);
ArrayList<BarDataSet> dataSets = new ArrayList<BarDataSet>();
dataSets.add(set1);
// bar chart data
BarData barData = new BarData(xVals, dataSets);
barData.setValueFormatter(new MyValueFormatter());
barData.setValueTextSize(10f);
// line chart data
LineData lineData = new LineData();
LineDataSet set = new LineDataSet(averageEntries, "average");
int lineColor = Color.rgb(251, 169, 165);
set.setColor(lineColor);
set.setLineWidth(1.5f);
set.setDrawCircles(false);
set.setFillColor(lineColor);
set.setDrawCubic(true);
set.setDrawValues(false);
set.setAxisDependency(YAxis.AxisDependency.LEFT);
lineData.addDataSet(set);
CombinedData combinedData = new CombinedData(getDates(meter.getReadings()));
combinedData.setData(barData);
combinedData.setData(lineData);
mChart.setData(combinedData);
mChart.invalidate();
}