@Override
public void render(Canvas canvas) {
try {
chart.render(canvas);
} catch (Exception e) {
Log.e(TAG, e.toString());
}
}
private void chartRender() {
try {
// 设置绘图区默认缩进px值,留置空间显示Axis,Axistitle....
int[] ltrb = getBarLnDefaultSpadding();
chart.setPadding(ltrb[0], ltrb[1], ltrb[2], ltrb[3]);
// 限制Tickmarks可滑动偏移范围
chart.setXTickMarksOffsetMargin(ltrb[2] - 20.f);
chart.setYTickMarksOffsetMargin(ltrb[3] - 20.f);
// 显示边框
chart.showRoundBorder();
// 设定数据源
chart.setCategories(labels);
chart.setDataSource(chartData);
// 数据轴最大值
chart.getDataAxis().setAxisMax(100);
// 数据轴刻度间隔
chart.getDataAxis().setAxisSteps(10);
// 背景网格
chart.getPlotGrid().showHorizontalLines();
// chart.getPlotGrid().showVerticalLines();
chart.getPlotGrid().showEvenRowBgColor();
chart.getPlotGrid().showOddRowBgColor();
chart.getPlotGrid().getHorizontalLinePaint().setStrokeWidth(2);
chart.getPlotGrid().setHorizontalLineStyle(XEnum.LineStyle.DASH);
chart.getPlotGrid().setVerticalLineStyle(XEnum.LineStyle.DOT);
chart.getPlotGrid().getHorizontalLinePaint().setColor(Color.RED);
chart.getPlotGrid().getVerticalLinePaint().setColor(Color.BLUE);
chart.setTitle("折线图(Line Chart)");
chart.addSubtitle("(XCL-Charts Demo)");
chart.getAxisTitle().setLowerTitle("(年份)");
// 激活点击监听
chart.ActiveListenItemClick();
// 为了让触发更灵敏，可以扩大5px的点击监听范围
chart.extPointClickRange(5);
chart.showClikedFocus();
// 绘制十字交叉线
chart.showDyLine();
chart.getDyLine().setDyLineStyle(XEnum.DyLineStyle.Vertical);
/*
//想隐藏轴的可以下面的函数来隐藏
chart.getDataAxis().hide();
chart.getCategoryAxis().hide();
//想设置刻度线属性的可用下面函数
chart.getDataAxis().getTickMarksPaint()
chart.getCategoryAxis().getTickMarksPaint()
//想设置刻度线标签属性的可用下面函数
chart.getDataAxis().getAxisTickLabelPaint()
chart.getCategoryAxis().getAxisTickLabelPaint()
*/
chart.getPlotArea().extWidth(100.f);
// 调整轴显示位置
chart.setDataAxisLocation(XEnum.AxisLocation.RIGHT);
chart.setCategoryAxisLocation(XEnum.AxisLocation.TOP);
// 收缩绘图区右边分割的范围，让绘图区的线不显示出来
chart.getClipExt().setExtRight(0.f);
// test x坐标从刻度线而不是轴开始
// chart.setXCoordFirstTickmarksBegin(true);
// chart.getCategoryAxis().showTickMarks();
// chart.getCategoryAxis().setVerticalTickPosition(XEnum.VerticalAlign.MIDDLE);
} catch (Exception e) {
// TODO Auto-generated catch block
Log.e(TAG, e.toString());
}
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
// 图所占范围大小
chart.setChartRange(w, h);
}
// 触发监听
private void triggerClick(float x, float y) {
// 交叉线
if (chart.getDyLineVisible()) chart.getDyLine().setCurrentXY(x, y);
if (!chart.getListenItemClickStatus()) {
// 交叉线
if (chart.getDyLineVisible()) this.invalidate();
} else {
PointPosition record = chart.getPositionRecord(x, y);
if (null == record) {
if (chart.getDyLineVisible()) this.invalidate();
return;
}
LineData lData = chartData.get(record.getDataID());
Double lValue = lData.getLinePoint().get(record.getDataChildID());
float r = record.getRadius();
chart.showFocusPointF(record.getPosition(), r + r * 0.5f);
chart.getFocusPaint().setStyle(Style.STROKE);
chart.getFocusPaint().setStrokeWidth(3);
if (record.getDataID() >= 3) {
chart.getFocusPaint().setColor(Color.BLUE);
} else {
chart.getFocusPaint().setColor(Color.RED);
}
// 在点击处显示tooltip
mPaintTooltips.setColor(Color.RED);
// chart.getToolTip().setCurrentXY(x,y);
chart.getToolTip().setCurrentXY(record.getPosition().x, record.getPosition().y);
chart.getToolTip().addToolTip(" Key:" + lData.getLineKey(), mPaintTooltips);
chart.getToolTip().addToolTip(" Label:" + lData.getLabel(), mPaintTooltips);
chart.getToolTip().addToolTip(" Current Value:" + Double.toString(lValue), mPaintTooltips);
// 当前标签对应的其它点的值
int cid = record.getDataChildID();
String xLabels = "";
for (LineData data : chartData) {
if (cid < data.getLinePoint().size()) {
xLabels = Double.toString(data.getLinePoint().get(cid));
chart.getToolTip().addToolTip("Line:" + data.getLabel() + "," + xLabels, mPaintTooltips);
}
}
this.invalidate();
}
}