java - MP Chart Showing One Extra Value at X_axis in Line Chart? -

i have implemented mp linechart. every thing working except one.it adds first month @ end of x axis. , values starts second point not first one. tried several solutions provided on google couldn't succeeded. e.g in following screen shot months list contains [apr,may,jun,jul,aug] adding in apr @ end , line starting may not apr. following code.

  string[] mmonths;   @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     getwindow().setflags(windowmanager.layoutparams.flag_fullscreen,             windowmanager.layoutparams.flag_fullscreen);     setcontentview(r.layout.activity_multi_line_chart);     context = this;     mpref = new mysharedpreferences(this);     charts_list = new arraylist<charts_data_model>();     mchart = (linechart) findviewbyid(r.id.chart1);     mchart.setonchartvalueselectedlistener(this);      mchart.setdrawgridbackground(false);     mchart.setdescription("vsc chart");     mchart.setdrawborders(false);      mchart.getaxisleft().setenabled(true);     mchart.getaxisright().setdrawaxisline(false);     mchart.getaxisright().setenabled(false);     mchart.getaxisright().setdrawgridlines(false);     mchart.getxaxis().setdrawaxisline(true);     mchart.getxaxis().setdrawgridlines(true);      // enable touch gestures     mchart.settouchenabled(true);      // enable scaling , dragging     mchart.setdragenabled(true);     mchart.setscaleenabled(true);      // if disabled, scaling can done on x- , y-axis separately     mchart.setpinchzoom(true);       legend l = mchart.getlegend();     l.setposition(legend.legendposition.above_chart_left);     l.setxentryspace(7f);     l.setyentryspace(0f);     l.setyoffset(0f);     l.setdirection(legend.legenddirection.left_to_right);     l.setwordwrapenabled(true);       new task4().execute();     }       class task4 extends asynctask<void, void, string> {      @override     protected void onpreexecute() {         pdialog = new progressdialog(multilinechartactivity.this);         pdialog.setmessage("please wait");         pdialog.setindeterminate(false);         pdialog.setcancelable(true);         pdialog.show();         super.onpreexecute();     }      @override     protected string doinbackground(void... arg0) {           getchartdatahadsm();           //record method         return null;     }      @override     protected void onpostexecute(string result) {          super.onpostexecute(result);         xaxis xaxis = mchart.getxaxis();         xaxis.setposition(xaxis.xaxisposition.bottom);         xaxis.setaxisminvalue(0f);         xaxis.setavoidfirstlastclipping(true);         // xaxis.setgranularityenabled(false);         xaxis.setgranularity(1f);          xaxis.setvalueformatter(new axisvalueformatter() {             @override             public string getformattedvalue(float value, axisbase axis) {                 return mmonths[(int) value % mmonths.length];             }              @override             public int getdecimaldigits() {                 return 0;             }         });           linedata data = new linedata(sets);         mchart.setdata(data);         mchart.invalidate();         pdialog.dismiss();      } }     public void getchartdatahadsm() {     mmonths = new string[charts_list_hadsm.size()];     arraylist<entry> e1 = new arraylist<entry>();     arraylist<entry> e2 = new arraylist<entry>();      int size = charts_list_hadsm.size();     (int = 0; < size; i++) {          string month = charts_list_hadsm.get(i).month;         mmonths[i] = month;         string anx = charts_list_hadsm.get(i).anx;         string dep = charts_list_hadsm.get(i).dep;          e1.add(new entry(i + 1, integer.parseint(anx)));         e2.add(new entry(i + 1, integer.parseint(dep)));       }     sets = new arraylist<ilinedataset>();     if (!e1.isempty()) {         linedataset d1 = new linedataset(e1, "anxiety");         d1.setlinewidth(2.5f);         d1.setcircleradius(4.5f);         d1.sethighlightcolor(color.rgb(244, 117, 117));         d1.setdrawvalues(false);         sets.add(d1);     }     if (!e2.isempty()) {         linedataset d2 = new linedataset(e2, "depression");         d2.setlinewidth(2.5f);         d2.setcircleradius(4.5f);         d2.sethighlightcolor(color.rgb(244, 117, 117));         d2.setcolor(colortemplate.vordiplom_colors[0]);         d2.setcirclecolor(colortemplate.vordiplom_colors[0]);         d2.setdrawvalues(false);         sets.add(d2);     }   } 

please hint or appreciated.

i have not been working chartset use. error describing , image messing indexes.

i have reviewed source , found following thing find suspicious , may want check:

for (int = 0; < size; i++) { // month list 0-based     string month = charts_list_hadsm.get(i).month;     mmonths[i] = month;     string anx = charts_list_hadsm.get(i).anx;     string dep = charts_list_hadsm.get(i).dep;   // data list 1-based // add data @ (i+1) skipping position 0     e1.add(new entry(i + 1, integer.parseint(anx)));     e2.add(new entry(i + 1, integer.parseint(dep)));   } 

essentially, month have 1 legend few, , seems legend rotates when reaches end of entries.

it matches image:

in apr column, there no value, starts may. values added there 1 more value there month in legend. thus, legend restarts apr show value.

i suggest fix:

for (int = 0; < size; i++) { // month list 0-based     string month = charts_list_hadsm.get(i).month;     mmonths[i] = month;     string anx = charts_list_hadsm.get(i).anx;     string dep = charts_list_hadsm.get(i).dep;   // make entries index 0-based,     e1.add(new entry(i, integer.parseint(anx)));     e2.add(new entry(i, integer.parseint(dep))); }