android - How to display refresh webservice value in achartengine line chart? -
i have achartengine line graph, displaying values json webservice in line graph. problem when callback asynctask line graph display old values on x y axis. not displaying new values. below code.
public void chardeclaration() { // chart linearlayout layout = (linearlayout) findviewbyid(r.id.chart); if (mychart == null) { initializechartnew(); mychart = chartfactory.getlinechartview(this, dataset, multirenderer); layout.addview(mychart); } else { mychart.repaint(); } } @suppresswarnings("deprecation") private void initializechartnew() { // creating xyseries income fromtemp = new xyseries("temperature"); (int = 0; < temp_time.size(); i++) { fromtemp.add(i, double.parsedouble(temp_details.get(i))); system.out.println("temperature details in charts " + temp_details.get(i)); } // creating dataset hold each series dataset = new xymultipleseriesdataset(); // adding income series dataset dataset.addseries(fromtemp); // creating xyseriesrenderer customize incomeseries from_temprenderer = new xyseriesrenderer(); from_temprenderer.setcolor(color.white); from_temprenderer.setpointstyle(pointstyle.circle); from_temprenderer.setfillpoints(true); from_temprenderer.setlinewidth(2); from_temprenderer.setchartvaluestextsize(20); from_temprenderer.setdisplaychartvalues(true); // creating xyseriesrenderer customize expenseseries // creating xymultipleseriesrenderer customize whole chart multirenderer = new xymultipleseriesrenderer(); multirenderer.setmargins(new int[] { 50, 50, 50, 50 }); multirenderer.setylabelsalign(align.right); multirenderer.setaxistitletextsize(20); multirenderer.setcharttitletextsize(20); multirenderer.setlabelstextsize(18); multirenderer.setlegendtextsize(18); multirenderer.setxlabels(0); (int k = 0; k < temp_date.size(); k++) { multirenderer.setcharttitle(temp_date.get(k)); system.out .println("temperature date in charts " + temp_date.get(k)); } multirenderer.setxtitle("time"); multirenderer.setytitle("temperature"); multirenderer.setylabelspadding(5); multirenderer.setzoombuttonsvisible(true); multirenderer.setpointsize(5); (int = 0; < temp_time.size(); i++) { multirenderer.addxtextlabel(i, temp_time.get(i)); } system.out.println("value of temp_details " + temp_details.size()); multirenderer.removeseriesrenderer(from_temprenderer); multirenderer.addseriesrenderer(from_temprenderer); } below asynctask private class temperaturedetails extends asynctask<string, string, string> { @override protected void onpreexecute() { super.onpreexecute(); pdialog = new progressdialog(mainactivity_new.this); pdialog.setmessage("please wait..."); pdialog.setcancelable(false); pdialog.setindeterminate(false); pdialog.setcanceledontouchoutside(false); pdialog.show(); // building_segment_id=""; /* * temp_details.clear(); date_time.clear(); temp_date.clear(); * temp_time.clear(); */ } @override protected string doinbackground(string... params) { // todo auto-generated method stub try { system.out .println("temp building seg id" + building_segment_id); // string temperature_url = // "http://www.intelatrek.com:98/service1.svc/tempratuelist?beconid=329%20king&date=2015-04-09"; string temp_url = "http://db.stat-systems.co.nz:81/service1.svc/tempraturelist?beconid=" + building_segment_id + "&date=2015-04-13"; system.out.println("blucatid in asynctask " + blucat_id); system.out.println("building_segment_id in asynctask " + building_segment_id); temp_details.clear(); date_time.clear(); temp_date.clear(); temp_time.clear(); jsonobject jobject = jsonparser.getjsonfromurl(temp_url); tempjsonflag = jobject.getstring("flag"); jsonarray jarray = jobject.getjsonarray("temptranslist"); (int = 0; < jarray.length(); i++) { jsonobject job = jarray.getjsonobject(i); string buildingid = job.getstring("buildingid"); string buildingsegmentid = job .getstring("buildingsegmentid"); // string customer_id = job.getstring("customer_id"); string datetime = job.getstring("datetime"); // string innerlocationid = // job.getstring("innerlocationid"); string temp_date = job.getstring("tempdate"); string temp_time = job.getstring("temptime"); string temperature = job.getstring("temperature"); temp_details.add(temperature); date_time.add(datetime); temp_date.add(temp_date); temp_time.add(temp_time); } } catch (exception e) { e.printstacktrace(); } return null; } @override protected void onpostexecute(string result) { // todo auto-generated method stub super.onpostexecute(result); if (pdialog != null) { pdialog.dismiss(); } (int = 0; < temp_details.size(); i++) { system.out .println("temperature details " + temp_details.get(i)); system.out.println("temperature date time " + date_time.get(i)); system.out.println("temperature temp date " + temp_date.get(i)); system.out.println("temperature temp time " + temp_time.get(i)); } system.out.println("temp details " + temp_details.size()); system.out.println("temp date time " + date_time.size()); system.out.println("temp temp date " + temp_date.size()); system.out.println("temp temp time " + temp_time.size()); system.out.println("temp json flag " + tempjsonflag); // if(tempjsonflag.equals("success")){ if (tempe_detail.tostring().equals("")) { temp_textview_temperature.setvisibility(view.gone); temp_textview_notfound.setvisibility(view.visible); imageview_degree.setvisibility(view.gone); /* * linearlayout layout = (linearlayout) * findviewbyid(r.id.chart); */ chart.setvisibility(view.gone); } else { temp_textview_notfound.setvisibility(view.gone); temp_textview_temperature.setvisibility(view.visible); temp_textview_temperature.settext(tempe_detail); temp_textview_temperature.settextsize(70); imageview_degree.setvisibility(view.visible); // temp_textview_temperature.setlayoutparams(llp); /* * linearlayout layout = (linearlayout) * findviewbyid(r.id.chart); */ chart.setvisibility(view.visible); chardeclaration(); } if (temp_textview_temperature.gettext().tostring().equals("1")) { temp_textview_temperature.setpadding(25, 0, 0, 0); } else if (temp_textview_temperature.gettext().tostring() .equals("2")) { temp_textview_temperature.setpadding(25, 0, 0, 0); } else if (temp_textview_temperature.gettext().tostring() .equals("3")) { temp_textview_temperature.setpadding(25, 0, 0, 0); } else if (temp_textview_temperature.gettext().tostring() .equals("4")) { temp_textview_temperature.setpadding(25, 0, 0, 0); } else if (temp_textview_temperature.gettext().tostring() .equals("5")) { temp_textview_temperature.setpadding(25, 0, 0, 0); } else if (temp_textview_temperature.gettext().tostring() .equals("6")) { temp_textview_temperature.setpadding(25, 0, 0, 0); } else if (temp_textview_temperature.gettext().tostring() .equals("7")) { temp_textview_temperature.setpadding(25, 0, 0, 0); } else if (temp_textview_temperature.gettext().tostring() .equals("8")) { temp_textview_temperature.setpadding(25, 0, 0, 0); } else if (temp_textview_temperature.gettext().tostring() .equals("9")) { temp_textview_temperature.setpadding(25, 0, 0, 0); } else { temp_textview_temperature.setpadding(0, 0, 0, 0); } int dip = (int) typedvalue.applydimension( typedvalue.complex_unit_dip, (float) 1, getresources() .getdisplaymetrics()); displaymetrics dm = new displaymetrics(); getwindowmanager().getdefaultdisplay().getmetrics(dm); int widthpixels = dm.widthpixels; int heightpixels = dm.widthpixels; float scalefactor = dm.density; float widthinches = widthpixels / scalefactor; if (widthinches >= 720) { // 10" tablet resolutions if (tempe_detail.tostring().equals("")) { temp_textview_temperature.setvisibility(view.gone); temp_textview_notfound.setvisibility(view.visible); imageview_degree.setvisibility(view.gone); // temp_textview_notfound.settext(60); chart.setvisibility(view.gone); } else { temp_textview_notfound.setvisibility(view.gone); temp_textview_temperature.setvisibility(view.visible); temp_textview_temperature.settext(tempe_detail); if (getresources().getconfiguration().orientation == configuration.orientation_landscape) { // stuff temp_textview_temperature.settextsize(70); imageview_degree.getlayoutparams().height = 30; imageview_degree.getlayoutparams().width = 30; } else { temp_textview_temperature.settextsize(180); imageview_degree.getlayoutparams().height = 50; imageview_degree.getlayoutparams().width = 50; } imageview_degree.setvisibility(view.visible); // temp_textview_temperature.setlayoutparams(llp); chart.setvisibility(view.visible); chardeclaration(); } if (temp_textview_temperature.gettext().tostring() .matches("[0-9.]*")) { temp_textview_temperature.setpadding(0, 0, 0, 0); } else if (temp_textview_temperature.gettext().length() == 3) { temp_textview_temperature.setpadding(20, 0, 0, 0); } else { temp_textview_temperature.setpadding(0, 0, 0, 0); } } else if (widthinches >= 600) { // 7" tablet resolutions if (tempe_detail.tostring().equals("")) { temp_textview_temperature.setvisibility(view.gone); temp_textview_notfound.setvisibility(view.visible); imageview_degree.setvisibility(view.gone); chart.setvisibility(view.gone); } else { temp_textview_notfound.setvisibility(view.gone); temp_textview_temperature.setvisibility(view.visible); temp_textview_temperature.settext(tempe_detail); temp_textview_temperature.settextsize(140); imageview_degree.setvisibility(view.visible); // temp_textview_temperature.setlayoutparams(llp); chart.setvisibility(view.visible); chardeclaration(); } if (temp_textview_temperature.gettext().tostring() .matches("[0-9.]*")) { temp_textview_temperature.setpadding(25, 0, 0, 0); if (temp_textview_temperature.gettext().length() == 3) { temp_textview_temperature.setpadding(0, 0, 0, 0); } } else { temp_textview_temperature.setpadding(0, 0, 0, 0); } } // } } }
use mychart.repaint(); redraw chart after date has been changed , if repaint doesn't work before repainting chart try using removeallviews() chart's parent layout.
chartlayout.removeallviews();
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