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Je veux griller les valeurs sur les points de contact sur le LineGraph. Pour ce faire, j'ai essayé d'utiliser la méthode interne OnTouch() mais cela n'a pas fonctionné pour moi. Je ne sais pas comment commencer car je suis nouveau à achartengine. J'ai essayé ..Implémentation au toucher dans achartengine
public class DynamicGraphActivity extends Activity {
private static GraphicalView view;
private LineGraph line = new LineGraph();
private static Thread thread;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
thread = new Thread() {
public void run()
{
for (int i = 1; i < 31; i++)
{
Point p = MockData.getDataFromReceiver(i); // We got new data!
line.addNewPoints(p); // Add it to our graph
view.repaint();
}
}
};
thread.start();
}
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
switch (event.getAction()) {
case MotionEvent.ACTION_MOVE:
displaycoordinates(event);
break;
case MotionEvent.ACTION_DOWN:
displaycoordinates(event);
break;
default:
break;
}
return true;
}
public void displaycoordinates(MotionEvent event) {
// TODO Auto-generated method stub
float x = event.getX();
float y = event.getY();
PointF point = new PointF(x,y);
NumberFormat nf = new DecimalFormat("#0.00");
//Double j = getXval(x);
String xval = nf.format(x);
// Double k = point.getYvalue(y);
String yval = nf.format(y);
Toast toast = Toast.makeText(getApplicationContext(), xval+"xval"+yval+" yval", 0);
toast.show();
}
@Override
protected void onStart() {
super.onStart();
view = line.getView(this);
setContentView(view);
}
}