public Axis yAxis() {
Axis yAxis = new Axis();
yAxis.setAutoGenerated(false);
List<AxisValue> axisValues = new ArrayList<AxisValue>();
// for(int j = 1; j <= 12; j += 1) {
// if (doMgdl) {
// axisValues.add(new AxisValue(j * 50));
// } else {
// axisValues.add(new AxisValue(j*2));
// }
// }
axisValues.add(new AxisValue(240));
axisValues.add(new AxisValue((int) this.lowMark));
axisValues.add(new AxisValue((int) this.highMark));
yAxis.setValues(axisValues);
yAxis.setHasLines(true);
yAxis.setLineColor(Color.parseColor("#555555"));
yAxis.setMaxLabelChars(5);
yAxis.setInside(true);
yAxis.setTextSize(axisTextSize);
yAxis.setTextColor(Color.parseColor("#8D8D8D"));
yAxis.setHasTiltedLabels(true);
return yAxis;
}
private void updateGraph(Cursor cursor) {
// set up the goal line
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
int goalCalories = Integer.parseInt(prefs.getString("preference_calorie_goal", "2000"));
List<PointValue> goalValues = new ArrayList<>();
// set up the data
List<PointValue> values = new ArrayList<>();
cursor.moveToFirst();
if (!cursor.isAfterLast()) {
goalValues.add(new PointValue(getTimeFromRow(cursor), goalCalories));
}
while (cursor.isAfterLast() == false) {
float value = cursor.getFloat(cursor.getColumnIndex("total"));
// Log.d("graph", "adding " + value + " on " + sdf.format(getTimeFromRow(cursor)));
values.add(new PointValue(getTimeFromRow(cursor), value));
cursor.moveToNext();
}
cursor.moveToLast();
goalValues.add(new PointValue(getTimeFromRow(cursor), goalCalories));
List<Line> lines = new ArrayList<Line>();
Line goalLine = new Line(goalValues).setColor(Color.parseColor("#ff0000"));
lines.add(goalLine);
Line line = new Line(values).setColor(Color.parseColor("#44a134")).setCubic(true);
// line.setFilled(true);
// line.setHasLabels(true);
lines.add(line);
LineChartData data = new LineChartData();
data.setLines(lines);
Axis timeAxis = new Axis();
// timeAxis.setName("");
// timeAxis.setTextColor(ChartUtils.COLOR_ORANGE);
timeAxis.setMaxLabelChars(5);
timeAxis.setFormatter(new TimestampAxisFormatter());
timeAxis.setHasLines(true);
timeAxis.setHasTiltedLabels(true);
data.setAxisXBottom(timeAxis);
Axis calorieAxis = new Axis();
// weightAxis.setName("");
// weightAxis.setTextColor(ChartUtils.COLOR_GREEN);
calorieAxis.setMaxLabelChars(7);
calorieAxis.setFormatter(new SimpleAxisValueFormatter().setAppendedText(" C".toCharArray()));
calorieAxis.setHasLines(true);
calorieAxis.setHasTiltedLabels(true);
data.setAxisYLeft(calorieAxis);
hellochart.setLineChartData(data);
hellochart.setZoomType(ZoomType.HORIZONTAL);
hellochart.setOnValueTouchListener(new ValueTouchListener());
// set up zoom so we can see 0 calories
Viewport viewport = new Viewport(hellochart.getMaximumViewport());
viewport.bottom = 0;
hellochart.setMaximumViewport(viewport);
hellochart.setCurrentViewport(viewport);
hellochart.invalidate();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.graph);
// generate Dates
Calendar calendar = Calendar.getInstance();
Date d1 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d2 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d3 = calendar.getTime();
Date d4 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d5 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d6 = calendar.getTime();
Date d7 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d8 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d9 = calendar.getTime();
GraphView graph = (GraphView) findViewById(R.id.graph);
// you can directly pass Date objects to DataPoint-Constructor
// this will convert the Date to double via Date#getTime()
LineGraphSeries<DataPoint> series =
new LineGraphSeries<DataPoint>(
new DataPoint[] {
new DataPoint(d1, 1),
new DataPoint(d2, 5),
new DataPoint(d3, 3),
new DataPoint(d4, 4),
new DataPoint(d5, 6),
new DataPoint(d6, 5),
new DataPoint(d7, 7),
new DataPoint(d8, 4),
new DataPoint(d9, 6),
});
series.setColor(getResources().getColor(android.R.color.holo_green_dark));
LineGraphSeries<DataPoint> series2 =
new LineGraphSeries<DataPoint>(
new DataPoint[] {
new DataPoint(d1, 2),
new DataPoint(d2, 3),
new DataPoint(d3, 3),
new DataPoint(d4, 4),
new DataPoint(d5, 5),
new DataPoint(d6, 5),
new DataPoint(d7, 7),
new DataPoint(d8, 4),
new DataPoint(d9, 6),
});
series.setColor(getResources().getColor(android.R.color.holo_red_dark));
graph.addSeries(series);
graph.addSeries(series2);
// set date label formatter
graph
.getGridLabelRenderer()
.setLabelFormatter(new DateAsXAxisLabelFormatter(NativeGraphActivity.this));
graph.getGridLabelRenderer().setNumHorizontalLabels(8); // only 4 because of the space
// set manual x bounds to have nice steps
graph.getViewport().setMinX(d1.getTime());
graph.getViewport().setMaxX(d9.getTime());
graph.getViewport().setXAxisBoundsManual(true);
lecho.lib.hellocharts.view.LineChartView chartView = (LineChartView) findViewById(R.id.chart);
List<PointValue> values = new ArrayList<PointValue>();
values.add(new PointValue(0, 2));
values.add(new PointValue(1, 4));
values.add(new PointValue(2, 3));
values.add(new PointValue(3, 4));
// In most cased you can call data model methods in builder-pattern-like manner.
Line line =
new Line(values)
.setColor(getResources().getColor(android.R.color.holo_red_dark))
.setCubic(false);
List<Line> lines = new ArrayList<Line>();
lines.add(line);
LineChartData data = new LineChartData();
data.setLines(lines);
Axis axis = new Axis();
axis.setHasTiltedLabels(true);
data.setAxisXBottom(new Axis().setAutoGenerated(true));
data.setAxisYLeft(new Axis().setAutoGenerated(true));
data.setBaseValue(20);
chartView.setLineChartData(data);
}