private void generateInitialLineData() {
int numValues = 7;
List<AxisValue> axisValues = new ArrayList<AxisValue>();
List<PointValue> values = new ArrayList<PointValue>();
for (int i = 0; i < numValues; ++i) {
values.add(new PointValue(i, 0));
axisValues.add(new AxisValue(i).setLabel(days[i]));
}
Line line = new Line(values);
line.setColor(ChartUtils.COLOR_GREEN).setCubic(true);
List<Line> lines = new ArrayList<Line>();
lines.add(line);
lineData = new LineChartData(lines);
lineData.setAxisXBottom(new Axis(axisValues).setHasLines(true));
lineData.setAxisYLeft(new Axis().setHasLines(true).setMaxLabelChars(3));
chartTop.setLineChartData(lineData);
// For build-up animation you have to disable viewport recalculation.
chartTop.setViewportCalculationEnabled(false);
// And set initial max viewport and current viewport- remember to set viewports after data.
Viewport v = new Viewport(0, 110, 6, 0);
chartTop.setMaximumViewport(v);
chartTop.setCurrentViewport(v);
chartTop.setZoomType(ZoomType.HORIZONTAL);
generateLineData(ChartUtils.COLOR_GREEN, 100);
}
public LineChartData previewLineData() {
LineChartData previewLineData = new LineChartData(lineData());
previewLineData.setAxisYLeft(yAxis());
previewLineData.setAxisXBottom(previewXAxis());
previewLineData.getLines().get(4).setPointRadius(2);
previewLineData.getLines().get(5).setPointRadius(2);
previewLineData.getLines().get(6).setPointRadius(2);
return previewLineData;
}
// 产生数据 记录
//////////////////////////////////////////////////////////////////////////////////////////////////////
private void generateDefaultData(int[] recordMsgBuffer) {
int max = recordMsgBuffer[0];
int min = recordMsgBuffer[0];
List<PointValue> values = new ArrayList<PointValue>();
for (int j = 0; j < recordMsgBuffer.length; j++) {
values.add(new PointValue(j, (float) recordMsgBuffer[j] / 10f));
if (recordMsgBuffer[j] > max) {
max = recordMsgBuffer[j];
}
if (recordMsgBuffer[j] < min) {
min = recordMsgBuffer[j];
}
}
if (max - min < 50) {
max = max + 25;
min = min - 25;
}
Line line = new Line(values);
line.setColor(ChartUtils.COLOR_GREEN);
line.setHasPoints(false); // too many values so don't draw points.
// line.setFilled(true);
List<PointValue> values1 = new ArrayList<PointValue>();
values1.add(new PointValue(0, (float) max / 10f + 0.2f));
Line line1 = new Line(values1);
line1.setHasPoints(false); // too many values so don't draw points.
line1.setPointRadius(0);
List<PointValue> values2 = new ArrayList<PointValue>();
values2.add(new PointValue(0, (float) min / 10f - 0.2f));
Line line2 = new Line(values2);
line2.setHasPoints(false); // too many values so don't draw points.
line2.setPointRadius(0);
List<Line> lines = new ArrayList<Line>();
lines.add(line);
lines.add(line1);
lines.add(line2);
data = new LineChartData(lines);
data.setAxisXBottom(new Axis().setHasLines(true).setTextColor(ChartUtils.COLOR_GREEN));
data.setAxisYLeft(
new Axis().setHasLines(true).setMaxLabelChars(4).setTextColor(ChartUtils.COLOR_GREEN));
// prepare preview data, is better to use separate deep copy for preview recordChart.
// Set color to grey to make preview area more visible.
previewData = new LineChartData(data);
previewData.getLines().get(0).setColor(ChartUtils.DEFAULT_DARKEN_COLOR);
}
// 产生数据 实时
/////////////////////////////////////////////////////////////////////////////////////////
private void generateInitialLineData() {
int numValues = 19;
List<AxisValue> axisValues = new ArrayList<AxisValue>();
List<PointValue> values = new ArrayList<PointValue>();
for (int i = 0; i < numValues; ++i) {
values.add(new PointValue(i, 0));
axisValues.add(new AxisValue(i).setLabel(days[i]));
}
Line line = new Line(values);
line.setColor(ChartUtils.COLOR_BLUE);
line.setHasPoints(false);
line.getShape();
line.setCubic(false); // 平滑
List<Line> lines = new ArrayList<Line>();
lines.add(line);
// lines.add(line1);
// lines.add(line2);
Axis axisX = new Axis(axisValues);
Axis axisY = new Axis().setHasLines(true);
if (hasAxesNames) {
axisX.setName("时间间隔");
// axisY.setName("温度");
axisX.setTextColor(ChartUtils.HOLO_BLUE_DARK);
axisY.setTextColor(ChartUtils.HOLO_BLUE_DARK);
}
lineData = new LineChartData(lines);
lineData.setAxisXBottom(axisX.setHasLines(true));
lineData.setAxisYLeft(axisY.setMaxLabelChars(4));
realeChartTop.setLineChartData(lineData);
// For build-up animation you have to disable viewport recalculation.
// 建立动画你必须禁用视图重新计算。
realeChartTop.setViewportCalculationEnabled(false);
// And set initial max viewport and current viewport- remember to set viewports after data.
// 设置初始值和当前视口视口记得要在数据集视图。
Viewport v = new Viewport(0, 50, 20, -10);
realeChartTop.setMaximumViewport(v);
realeChartTop.setCurrentViewport(v);
realeChartTop.setZoomType(ZoomType.HORIZONTAL);
// toggleFilled();
// toggleLabels();
toggleAxesNames();
}
public void addListToChart(List<Day> days) {
int currentValue;
int size = days.size();
maxValueOfLineChartData = 0;
List<PointValue> valuePoints = new ArrayList<PointValue>();
if (size == 1) {
for (int i = 0; i < 24; i++) {
currentValue = days.get(0).getHours().get(i).getMmm().getMean();
if (currentValue > maxValueOfLineChartData) {
maxValueOfLineChartData = currentValue;
}
valuePoints.add(new PointValue(i, currentValue));
}
} else {
for (int i = 0; i < size; i++) {
currentValue = days.get(i).getMmm().getMean();
if (currentValue > maxValueOfLineChartData) {
maxValueOfLineChartData = currentValue;
}
valuePoints.add(new PointValue(i, currentValue));
}
}
dataLine = new Line(valuePoints);
dataLine.setColor(ChartUtils.COLOR_ORANGE);
dataLine.setHasPoints(false);
List<Line> lines = new ArrayList<Line>();
lines.add(dataLine);
data = new LineChartData(lines);
data.setAxisXBottom(new Axis());
data.setAxisYLeft(new Axis().setHasLines(true));
previewData = new LineChartData(data);
previewData.getLines().get(0).setColor(ChartUtils.DEFAULT_DARKEN_COLOR);
chart.setLineChartData(data);
previewChart.setLineChartData(previewData);
updateChartView();
}
private LineChartData generateLineChartData() {
int numValues = 20;
List<PointValue> values = new ArrayList<PointValue>();
for (int i = 0; i < numValues; ++i) {
values.add(new PointValue(i, (float) Math.random() * 100f));
}
Line line = new Line(values);
line.setColor(ChartUtils.COLOR_GREEN);
List<Line> lines = new ArrayList<Line>();
lines.add(line);
LineChartData data = new LineChartData(lines);
data.setAxisXBottom(new Axis().setName("Axis X"));
data.setAxisYLeft(new Axis().setName("Axis Y").setHasLines(true));
return data;
}
private LineChartData generatePreviewLineChartData() {
int numValues = 50;
List<PointValue> values = new ArrayList<PointValue>();
for (int i = 0; i < numValues; ++i) {
values.add(new PointValue(i, (float) Math.random() * 100f));
}
Line line = new Line(values);
line.setColor(ChartUtils.DEFAULT_DARKEN_COLOR);
line.setHasPoints(false); // too many values so don't draw points.
List<Line> lines = new ArrayList<Line>();
lines.add(line);
LineChartData data = new LineChartData(lines);
data.setAxisXBottom(new Axis());
data.setAxisYLeft(new Axis().setHasLines(true));
return data;
}
/** ************************** DATA POINTS *************************** */
private void getForecastData() {
List<PointValue> values = new ArrayList<PointValue>();
// List<PointValue> values2 = new ArrayList<PointValue>();
for (int i = 0; i < numData; ++i) {
Log.d("VALUES", "Time: " + Integer.toString(times[i]));
Log.d("VALUES", "Temp: " + Double.toString(temperatures[i]));
values.add(new PointValue(times[i], (float) temperatures[i]));
/*
if (i==0 || i==6 || i==12 || i==15 || i==17 || i==20) {
values2.add(new PointValue(times[i], (float) temperatures[i]+(float) (Math.random() - 0.50f)));
} else {
values2.add(new PointValue(times[i], values2.get(i-1).getY() + (float) (Math.random()/3 - 0.25f)));
}*/
}
Line line = new Line(values);
line.setColor(ChartUtils.COLOR_GREEN);
line.setHasPoints(false); // too many values so don't draw points.
List<Line> lines = new ArrayList<Line>();
lines.add(line);
/*
Line line2 = new Line(values2);
line2.setColor(ChartUtils.COLOR_BLUE);
line2.setHasPoints(false);
lines.add(line2);
*/
data = new LineChartData(lines);
data.setAxisXBottom(new Axis());
data.setAxisYLeft(new Axis().setHasLines(true));
// prepare preview data, is better to use separate deep copy for preview chart.
// Set color to grey to make preview area more visible.
previewData = new LineChartData(data);
previewData.getLines().get(0).setColor(ChartUtils.DEFAULT_DARKEN_COLOR);
// previewData.getLines().get(1).setColor(ChartUtils.DEFAULT_DARKEN_COLOR);
}
private void generateDefaultData() {
int numValues = 50;
List<PointValue> values = new ArrayList<PointValue>();
for (int i = 0; i < numValues; ++i) {
values.add(new PointValue(i, (float) Math.random() * 100f));
}
Line line = new Line(values);
line.setColor(ChartUtils.COLOR_GREEN);
line.setHasPoints(false); // too many values so don't draw points.
List<Line> lines = new ArrayList<Line>();
lines.add(line);
data = new LineChartData(lines);
data.setAxisXBottom(new Axis());
data.setAxisYLeft(new Axis().setHasLines(true));
// prepare preview data, is better to use separate deep copy for preview chart.
// Set color to grey to make preview area more visible.
previewData = new LineChartData(data);
previewData.getLines().get(0).setColor(ChartUtils.DEFAULT_DARKEN_COLOR);
}
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();
}
public LineChartData lineData() {
LineChartData lineData = new LineChartData(defaultLines());
lineData.setAxisYLeft(yAxis());
lineData.setAxisXBottom(xAxis());
return lineData;
}
@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);
}