How to set Legend on graphview for particular line?

Question

i using GraphView in my app.. that graphview have Legend option.. it's fine .. but the legend will show all the draw line in my graphview.. my code..

   GraphViewSeries g1 = new GraphViewSeries("", new GraphViewSeriesStyle(Color.WHITE, 1/3),new GraphViewData[] {
            new GraphViewData(-5,0d),
            new GraphViewData(5,0d),

        });
 GraphViewSeries g2 = new GraphViewSeries("", new GraphViewSeriesStyle(Color.WHITE, 1/3),new GraphViewData[] {
            new GraphViewData(0,-5d),
            new GraphViewData(0,5d),

        });
     GraphViewSeries red = new GraphViewSeries("Red", new GraphViewSeriesStyle(Color.RED, 3),new GraphViewData[] {
        new GraphViewData(-4,-4d),
        new GraphViewData(4,4d),

    });

 GraphViewSeries green = new GraphViewSeries("Green", new GraphViewSeriesStyle(Color.GREEN, 3),new GraphViewData[] {
        new GraphViewData(-4,-3d),
        new GraphViewData(-4,0d),
        new GraphViewData(0.6,0d),
        new GraphViewData(0.6,4d),

    });

   GraphView graphView = new LineGraphView(this.getActivity(), " "); 

   graphView.setShowLegend(true);
    graphView.setLegendAlign(LegendAlign.BOTTOM);
    graphView.setLegendWidth(250);

this code shows all the four lines to Legend..

but i want only add two particular line(red & Green) into Legend.. how it's done.. kindly tell easiest way to done this..

thanks in advance..

score 0 · Accepted Answer · answered Sep 22 '14 at 11:49

There is no build-in option to do this. But you can modify the source code of graphview.

The drawing of the legend is done at the drawLegend method in the GraphView.java file: https://github.com/jjoe64/GraphView/blob/master/src/main/java/com/jjoe64/graphview/GraphView.java#L463

In Line 491 is the loop where the series names were drawn:

for (int i=0; i<graphSeries.size(); i++) {

If you do not want to modify the source code or you don't have the opportunity, you could override this method (it is protected).

How to set Legend on graphview for particular line?

1 Answers1