Fill a specific Y range with a different color in a line chart using Android MP chart?

Question

I am new to MP Android Chart and I cannot figure out how to fill a certain range of Y with different colors. Highlighted as point 2 in the screenshot.

Also, after reading the function documentation, I try to change the color of the line highlighted in step 1 and fill the area under the graph with some color point 3. But points 1 and 3 do not work, and I could not understand how point 2 can.

public class LineChartActivity extends AppCompatActivity {

private static final String TAG = "Test";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_line_chart);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    Log.i(TAG, "Line Chart Activity Created");

    LineChart chart = (LineChart) findViewById(R.id.chart);
    LineData data = new LineData(getXAxisValues(), getDataSet());
    chart.setData(data);
    setXAxis(chart);
    chart.getAxisRight().setDrawLabels(false);
    //chart.setAutoScaleMinMaxEnabled(true);
    chart.setGridBackgroundColor(128);
    chart.setBorderColor(255);
    chart.setDrawGridBackground(false);
    //chart.setBackgroundColor(0);
    chart.getLegend().setEnabled(false);
    chart.setPinchZoom(true);
    chart.setDescription("");
    chart.setTouchEnabled(true);
    chart.setDoubleTapToZoomEnabled(true);
    chart.animateXY(2000, 2000);
    chart.invalidate();
}

private ArrayList<ILineDataSet> getDataSet() {
    ArrayList<ILineDataSet> dataSets = null;
    ArrayList<Entry> valueSet1 = new ArrayList<>();

    Entry v1e1 = new Entry(110.000f, 0); 
    valueSet1.add(v1e1);
    Entry v1e2 = new Entry(40.000f, 4); 
    valueSet1.add(v1e2);
    Entry v1e3 = new Entry(60.000f, 5); 
    valueSet1.add(v1e3);
    Entry v1e4 = new Entry(30.000f, 6); 
    valueSet1.add(v1e4);
    Entry v1e5 = new Entry(90.000f, 7); 
    valueSet1.add(v1e5);
    Entry v1e6 = new Entry(100.000f, 8);
    valueSet1.add(v1e6);

    LineDataSet lineDataSet1 = new LineDataSet(valueSet1, "Brand 1");
    int[] colors  = new int[] {R.color.red  ,R.color.red, R.color.orange ,R.color.green, R.color.orange, R.color.red };
    lineDataSet1.setCircleColors(colors, this);
    lineDataSet1.setCircleRadius(8f);
    lineDataSet1.setLineWidth(3f);
    lineDataSet1.setValueTextSize(20f);
    lineDataSet1.enableDashedLine(6f, 18f, 0);
    dataSets = new ArrayList<>();
    dataSets.add(lineDataSet1);
    return dataSets;
}

private ArrayList<String> getXAxisValues() {
    ArrayList<String> xAxis = new ArrayList<>();
    xAxis.add("JAN");
    xAxis.add("FEB");
    xAxis.add("MAR");
    xAxis.add("APR");
    xAxis.add("MAY");
    xAxis.add("JUN");
    xAxis.add("JUL");
    xAxis.add("AUG");
    xAxis.add("SEPT");
    xAxis.add("OCT");
    xAxis.add("NOV");
    xAxis.add("DEC");
    return xAxis;
}

private void setXAxis(LineChart chart){
    XAxis xAxis = chart.getXAxis();
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setTextSize(10f);
    xAxis.setTextColor(Color.BLUE);
    //xAxis.setDrawGridLines(true);
    xAxis.setDrawAxisLine(true);
}

}

Many thanks! Ankit

Answer 1

, , :

lineDataSet1.setColor(Color.BLACK)  //or any other color you want

:

lineDataSet1.setFillColor(Color.GREEN);
lineDataSet1.setFillAlpha(10); //setting alpha is optional, use if needed.

2, , LimitLines , . . , -.

, !