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I am trying to add a graph to my project for that purpose I am using GraphView library.
My issue here is in one of the methods drawseries expecting an interface (GraphViewDataInterface) which I am confused on how to provide as a input.
draw series method input parameters:
The method drawSeries(Canvas, GraphViewDataInterface[], float, float, float, double, double, double, double, float, GraphViewSeries.GraphViewSeriesStyle)
I have provided all parameters but struck at GraphViewDataInterface.
How can I provide an interface as a parameter to the method?
Code:
public class graph extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.graph);
BarGraphView bgv=new BarGraphView(getApplicationContext(), "firstgraph");
Bitmap b = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(b);
bgv.drawSeries(c,
GraphViewDataInterface[] {10.0,10.0}, (float) 1.0,
(float) 1.0,
(float) 1.0,
1.0,
1.0,
1.0,
1.0,
(float) 1.0,
new GraphViewSeries.GraphViewSeriesStyle(1, 1));
LinearLayout layout = (LinearLayout) findViewById(R.id.linearLayout1);
layout.addView(bgv);
}
Answer
I’m not sure what exactly you want to do. drawSeries is an intern method. normally you never call it explicit. Take a look at the examples and the documentation.
Anyway, the GraphViewDataInterface is used to return just the x and y values. You could provide your own class and methods to do so. But normally you use the class GraphViewData that already implements that interface.
import com.jjoe64.graphview.GraphView.GraphViewData;
//...
// create data array
GraphViewDataInterface[] data = new GraphViewDataInterface[] {
new GraphViewData(0, 1),
new GraphViewData(1, 5),
new GraphViewData(2, 3)
};