I am using MPAndroidChart
lib to plot graph, and i got some problem in using with the marketview the code are below :
MainActivity.java
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
View p = findViewById(R.id.pie);
ChartPie.Plot(p, p.getId());
View l = findViewById(R.id.line);
ChartLine.Plot(l, l.getId());
}
Chartline.java
protected Context context;
public static void Plot(View v, int id){
LineChart lineChart = v.findViewById(id);
HelloME mv = new HelloME(**context**, R.layout.mymarketview);
mv.setChartView(lineChart);
lineChart.setMarker(mv);
XAxis xAxis = lineChart.getXAxis();
xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
...
HelloME.java
private TextView tvContent;
public HelloME(Context context, int layoutResource) {
super(context, layoutResource);
tvContent = (TextView) findViewById(R.id.hello);
}
I dont know how to get the context in the class Chartline, because the method is in static. All the code is copy from the example in the lib, but i am trying to separate the linechart class, and face this problem.
Basically there are several types of context. In your case you can get it from v.getContext();
Modify HelloME.java like below:-
private TextView tvContent;
private static Context context_;
public HelloME(Context context, int layoutResource) {
super(context, layoutResource);
context_ = context;
tvContent = (TextView) findViewById(R.id.hello);
}
public static Context getContext(){
return context_;
}
Now in Chartline.java
HelloME mv = new HelloME(HelloME.getContext(), R.layout.mymarketview);
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