是否有任何方法可以更改所选部分的颜色。我正在使用Mp图表库。并尝试以折线图的形式显示一些统计信息。 到目前为止，我已经尝试了许多更改，但是无法更改所选部分https://www.symantec.com/connect/blogs/add-file-msi-using-orca
的颜色public class Weight extends Fragment {
private LineChart mChart;
LineChartRenderer lineChartRenderer;
private ILineDataSet boundaryDataSet;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
}
}
public Weight() {
this(null);
}
//Pass the dataset of other line in the Constructor
@SuppressLint("ValidFragment")
public Weight(ILineDataSet boundaryDataSet) {
this.boundaryDataSet = boundaryDataSet;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_weight, container, false);
mChart = rootView.findViewById(R.id.chart1);
mChart.setBackgroundColor(Color.parseColor("#ffffff"));
// no description text
mChart.getDescription().setEnabled(false);
// enable touch gestures
mChart.setTouchEnabled(true);
mChart.setDragDecelerationFrictionCoef(0.9f);
// enable scaling and dragging
mChart.setDragEnabled(true);
mChart.setScaleEnabled(true);
mChart.setDrawGridBackground(false);
mChart.setHighlightPerDragEnabled(true);
// if disabled, scaling can be done on x- and y-axis separately
mChart.setPinchZoom(false);
// add data
setData(20, 30);
mChart.animateX(2500);
// get the legend (only possible after setting data)
Legend l = mChart.getLegend();
// modify the legend ...
l.setForm(Legend.LegendForm.LINE);
l.setTextSize(11f);
l.setTextColor(Color.BLACK);
l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM);
l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.LEFT);
l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
l.setDrawInside(false);
// l.setYOffset(11f);
XAxis xAxis = mChart.getXAxis();
xAxis.setTextSize(11f);
xAxis.setTextColor(Color.BLACK);
xAxis.setDrawGridLines(false);
xAxis.setDrawAxisLine(false);
YAxis leftAxis = mChart.getAxisLeft();
leftAxis.setTextColor(ColorTemplate.getHoloBlue());
leftAxis.setAxisMaximum(30);
leftAxis.setAxisMinimum(0f);
leftAxis.setDrawGridLines(true);
leftAxis.setGranularityEnabled(true);
YAxis rightAxis = mChart.getAxisRight();
rightAxis.setTextColor(Color.BLACK);
rightAxis.setAxisMaximum(30);
rightAxis.setAxisMinimum(0);
rightAxis.setDrawGridLines(false);
rightAxis.setDrawZeroLine(false);
rightAxis.setGranularityEnabled(false);
return rootView;
}
private void setData(int count, float range) {
ArrayList<String> first_line =new ArrayList<String>();
ArrayList<String> second_line =new ArrayList<String>();
ArrayList<String> theard_line =new ArrayList<String>();
first_line.add("3");
first_line.add("6");
first_line.add("9");
first_line.add("12");
first_line.add("15");
first_line.add("18");
first_line.add("21");
second_line.add("2");
second_line.add("4");
second_line.add("6");
second_line.add("8");
second_line.add("10");
second_line.add("12");
second_line.add("14");
theard_line.add("1");
theard_line.add("3");
theard_line.add("3");
theard_line.add("4");
theard_line.add("7");
theard_line.add("10");
theard_line.add("12");
ArrayList<Entry> yVals1 = new ArrayList<Entry>();
for (int i = 0; i < first_line.size(); i++) {
float mult = range / 1;
float val = Float.parseFloat(first_line.get(i));
yVals1.add(new Entry(i, val));
}
ArrayList<Entry> yVals2 = new ArrayList<Entry>();
for (int i = 0; i < second_line.size(); i++) {
float mult = range;
float val = Float.parseFloat(second_line.get(i));
yVals2.add(new Entry(i, val));
}
ArrayList<Entry> yVals3 = new ArrayList<Entry>();
for (int i = 0; i < theard_line.size(); i++) {
float mult = range;
float val = Float.parseFloat(theard_line.get(i));
yVals3.add(new Entry(i, val));
}
LineDataSet set1, set2, set3;
if (mChart.getData() != null &&
mChart.getData().getDataSetCount() > 0) {
set1 = (LineDataSet) mChart.getData().getDataSetByIndex(0);
set2 = (LineDataSet) mChart.getData().getDataSetByIndex(1);
set3 = (LineDataSet) mChart.getData().getDataSetByIndex(2);
set1.setValues(yVals1);
set2.setValues(yVals2);
set3.setValues(yVals3);
mChart.getData().notifyDataChanged();
mChart.notifyDataSetChanged();
}
else {
// create a dataset and give it a type
set1 = new LineDataSet(yVals1, "DataSet 1");
set1.setAxisDependency(YAxis.AxisDependency.LEFT);
set1.setColor(Color.parseColor("#f5f3f3"));
set1.setCircleColor(R.color.trans);
set1.setLineWidth(2f);
set1.setDrawCircles(false);
set1.setFillColor(R.color.trans);
set1.setDrawCircleHole(false);
set1.setFillAlpha(60);
set1.setHighLightColor(Color.parseColor("#f5f3f3"));
set1.setHighlightLineWidth(300f);
set1.setHighlightEnabled(true);
set1.setDrawFilled(true);
// create a dataset and give it a type
set2 = new LineDataSet(yVals2, "DataSet 2");
set2.setAxisDependency(YAxis.AxisDependency.RIGHT);
set2.setColor(Color.parseColor("#f46a99"));
set2.setCircleColor(Color.BLACK);
set2.setLineWidth(2f);
set2.setCircleRadius(3f);
set2.setFillAlpha(65);
set2.setFillColor(Color.RED);
set2.setDrawCircleHole(false);
//set2.setFillFormatter(new MyFillFormatter(900f));
set3 = new LineDataSet(yVals3, "DataSet 3");
set3.setAxisDependency(YAxis.AxisDependency.RIGHT);
set3.setColor(Color.parseColor("#f5f3f3"));
set3.setDrawCircles(false);
set3.setLineWidth(2f);
set3.setFillColor(Color.parseColor("#000000"));
Drawable drawable = ContextCompat.getDrawable(getActivity(),
R.drawable.fade_red);
set3.setFillDrawable(drawable);
set3.setHighlightEnabled(true);
set3.setHighLightColor(Color.parseColor("#000000"));
set3.setDrawCircleHole(false);
set3.setFillAlpha(0);
set3.setDrawFilled(true);
// create a data object with the datasets
LineData data = new LineData(set1, set2, set3);
data.setValueTextColor(Color.BLACK);
data.setValueTextSize(9f);
// set data
mChart.setData(data);
}
}
}
我想更改set 3的背景色。是否可以在此库中更改颜色？还是我应该使用其他代码