Java Code Examples for com.github.mikephil.charting.interfaces.datasets.ICandleDataSet#addEntry()
The following examples show how to use
com.github.mikephil.charting.interfaces.datasets.ICandleDataSet#addEntry() .
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Example 1
| Source File: KLineChart.java From StockChart-MPAndroidChart with MIT License | 6 votes |
|
/**
* 动态更新最后一点数据 最新数据集
*
* @param kLineData
*/
public void dynamicsUpdateOne(KLineDataManage kLineData) {
int size = kLineData.getKLineDatas().size();
int i = size - 1;
CombinedData candleChartData = candleChart.getData();
CandleData candleData = candleChartData.getCandleData();
ICandleDataSet candleDataSet = candleData.getDataSetByIndex(0);
candleDataSet.removeEntry(i);
candleDataSet.addEntry(new CandleEntry(i + kLineData.getOffSet(), (float) kLineData.getKLineDatas().get(i).getHigh(), (float) kLineData.getKLineDatas().get(i).getLow(), (float) kLineData.getKLineDatas().get(i).getOpen(), (float) kLineData.getKLineDatas().get(i).getClose()));
if (chartType1 == 1) {//副图是成交量
CombinedData barChartData = barChart.getData();
IBarDataSet barDataSet = barChartData.getBarData().getDataSetByIndex(0);
barDataSet.removeEntry(i);
float color = kLineData.getKLineDatas().get(i).getOpen() == kLineData.getKLineDatas().get(i).getClose()?0f:kLineData.getKLineDatas().get(i).getOpen() > kLineData.getKLineDatas().get(i).getClose() ? -1f : 1f;
BarEntry barEntry = new BarEntry(i + kLineData.getOffSet(), (float) kLineData.getKLineDatas().get(i).getVolume(), color);
barDataSet.addEntry(barEntry);
} else {//副图是其他技术指标
doBarChartSwitch(chartType1);
}
candleChart.notifyDataSetChanged();
barChart.notifyDataSetChanged();
candleChart.invalidate();
barChart.invalidate();
}
Example 2
| Source File: KLineChart.java From StockChart-MPAndroidChart with MIT License | 5 votes |
|
/**
* 动态增加一个点数据
*
* @param kLineData 最新数据集
*/
public void dynamicsAddOne(KLineDataManage kLineData) {
int size = kLineData.getKLineDatas().size();
CombinedData candleChartData = candleChart.getData();
CandleData candleData = candleChartData.getCandleData();
ICandleDataSet candleDataSet = candleData.getDataSetByIndex(0);
int i = size - 1;
candleDataSet.addEntry(new CandleEntry(i + kLineData.getOffSet(), (float) kLineData.getKLineDatas().get(i).getHigh(), (float) kLineData.getKLineDatas().get(i).getLow(), (float) kLineData.getKLineDatas().get(i).getOpen(), (float) kLineData.getKLineDatas().get(i).getClose()));
kLineData.getxVals().add(DataTimeUtil.secToDate(kLineData.getKLineDatas().get(i).getDateMills()));
candleChart.getXAxis().setAxisMaximum(kLineData.getKLineDatas().size() < 70 ? 70 : candleChartData.getXMax() + kLineData.getOffSet());
if (chartType1 == 1) {//副图是成交量
CombinedData barChartData = barChart.getData();
IBarDataSet barDataSet = barChartData.getBarData().getDataSetByIndex(0);
if (barDataSet == null) {//当没有数据时
return;
}
float color = kLineData.getKLineDatas().get(i).getOpen() == kLineData.getKLineDatas().get(i).getClose()?0f:kLineData.getKLineDatas().get(i).getOpen() > kLineData.getKLineDatas().get(i).getClose() ? -1f : 1f;
BarEntry barEntry = new BarEntry(i + kLineData.getOffSet(), (float) kLineData.getKLineDatas().get(i).getVolume(), color);
barDataSet.addEntry(barEntry);
barChart.getXAxis().setAxisMaximum(kLineData.getKLineDatas().size() < 70 ? 70 : barChartData.getXMax() + kLineData.getOffSet());
} else {//副图是其他技术指标
doBarChartSwitch(chartType1);
}
candleChart.notifyDataSetChanged();
barChart.notifyDataSetChanged();
if (kLineData.getKLineDatas().size() > 70) {
//moveViewTo(...) 方法会自动调用 invalidate()
candleChart.moveViewToX(kLineData.getKLineDatas().size() - 1);
barChart.moveViewToX(kLineData.getKLineDatas().size() - 1);
} else {
candleChart.invalidate();
barChart.invalidate();
}
}
Example 3
| Source File: KLineView.java From android-kline with Apache License 2.0 | 4 votes |
|
public void addData(HisData hisData) {
hisData = DataUtils.calculateHisData(hisData, mData);
CombinedData combinedData = mChartPrice.getData();
LineData priceData = combinedData.getLineData();
ILineDataSet ma5Set = priceData.getDataSetByIndex(1);
ILineDataSet ma10Set = priceData.getDataSetByIndex(2);
ILineDataSet ma20Set = priceData.getDataSetByIndex(3);
ILineDataSet ma30Set = priceData.getDataSetByIndex(4);
CandleData kData = combinedData.getCandleData();
ICandleDataSet klineSet = kData.getDataSetByIndex(0);
IBarDataSet volSet = mChartVolume.getData().getBarData().getDataSetByIndex(0);
IBarDataSet macdSet = mChartMacd.getData().getBarData().getDataSetByIndex(0);
ILineDataSet difSet = mChartMacd.getData().getLineData().getDataSetByIndex(0);
ILineDataSet deaSet = mChartMacd.getData().getLineData().getDataSetByIndex(1);
LineData kdjData = mChartKdj.getData().getLineData();
ILineDataSet kSet = kdjData.getDataSetByIndex(0);
ILineDataSet dSet = kdjData.getDataSetByIndex(1);
ILineDataSet jSet = kdjData.getDataSetByIndex(2);
if (mData.contains(hisData)) {
int index = mData.indexOf(hisData);
klineSet.removeEntry(index);
// ma比较特殊，entry数量和k线的不一致，移除最后一个
ma5Set.removeLast();
ma10Set.removeLast();
ma20Set.removeLast();
ma30Set.removeLast();
volSet.removeEntry(index);
macdSet.removeEntry(index);
difSet.removeEntry(index);
deaSet.removeEntry(index);
kSet.removeEntry(index);
dSet.removeEntry(index);
jSet.removeEntry(index);
mData.remove(index);
}
mData.add(hisData);
int klineCount = klineSet.getEntryCount();
klineSet.addEntry(new CandleEntry(klineCount, (float) hisData.getHigh(), (float) hisData.getLow(), (float) hisData.getOpen(), (float) hisData.getClose()));
volSet.addEntry(new BarEntry(volSet.getEntryCount(), hisData.getVol(), hisData));
macdSet.addEntry(new BarEntry(macdSet.getEntryCount(), (float) hisData.getMacd()));
difSet.addEntry(new Entry(difSet.getEntryCount(), (float) hisData.getDif()));
deaSet.addEntry(new Entry(deaSet.getEntryCount(), (float) hisData.getDea()));
kSet.addEntry(new Entry(kSet.getEntryCount(), (float) hisData.getK()));
dSet.addEntry(new Entry(dSet.getEntryCount(), (float) hisData.getD()));
jSet.addEntry(new Entry(jSet.getEntryCount(), (float) hisData.getJ()));
// 因为ma的数量会少，所以这里用kline的set数量作为x
if (!Double.isNaN(hisData.getMa5())) {
ma5Set.addEntry(new Entry(klineCount, (float) hisData.getMa5()));
}
if (!Double.isNaN(hisData.getMa10())) {
ma10Set.addEntry(new Entry(klineCount, (float) hisData.getMa10()));
}
if (!Double.isNaN(hisData.getMa20())) {
ma20Set.addEntry(new Entry(klineCount, (float) hisData.getMa20()));
}
if (!Double.isNaN(hisData.getMa30())) {
ma30Set.addEntry(new Entry(klineCount, (float) hisData.getMa30()));
}
mChartPrice.getXAxis().setAxisMaximum(combinedData.getXMax() + 1.5f);
mChartVolume.getXAxis().setAxisMaximum(mChartVolume.getData().getXMax() + 1.5f);
mChartMacd.getXAxis().setAxisMaximum(mChartMacd.getData().getXMax() + 1.5f);
mChartKdj.getXAxis().setAxisMaximum(mChartKdj.getData().getXMax() + 1.5f);
mChartPrice.setVisibleXRange(MAX_COUNT, MIN_COUNT);
mChartVolume.setVisibleXRange(MAX_COUNT, MIN_COUNT);
mChartMacd.setVisibleXRange(MAX_COUNT, MIN_COUNT);
mChartKdj.setVisibleXRange(MAX_COUNT, MIN_COUNT);
mChartPrice.notifyDataSetChanged();
mChartPrice.invalidate();
mChartVolume.notifyDataSetChanged();
mChartVolume.invalidate();
mChartMacd.notifyDataSetChanged();
mChartMacd.invalidate();
mChartKdj.notifyDataSetChanged();
mChartKdj.invalidate();
setDescription(mChartPrice, String.format(Locale.getDefault(), "MA5:%.2f MA10:%.2f MA20:%.2f MA30:%.2f",
hisData.getMa5(), hisData.getMa10(), hisData.getMa20(), hisData.getMa30()));
setDescription(mChartVolume, "成交量 " + hisData.getVol());
setDescription(mChartMacd, String.format(Locale.getDefault(), "MACD:%.2f DEA:%.2f DIF:%.2f",
hisData.getMacd(), hisData.getDea(), hisData.getDif()));
setDescription(mChartKdj, String.format(Locale.getDefault(), "K:%.2f D:%.2f J:%.2f",
hisData.getK(), hisData.getD(), hisData.getJ()));
}
