Bar graph creation problem using JSON

Ciortea Razvan · Jun 18, 2018

I try to create a Bar Graph using JSON data. The problem is when try to save a specific data in an Entry object, with the mention that i save each value in a ArrayList for iteration needed to put each value as an Entry in the graph(Y AXIS).
This is the request and plot of the graph part:

Java:

try {
                       JSONObject jsonObject = new JSONObject(response);

                       JSONObject open = jsonObject.getJSONObject("open");


                       for (int i = 0; i < open.length(); i++) {

                           int mon = open.getInt("hour");
                           int tue = open.getInt("day");
                           int wen = open.getInt("week");
                           int thu = open.getInt("month");
                           int fri = open.getInt("month_3");
                           int sat = open.getInt("month_6");
                           int sun = open.getInt("year");

                           //        dates = new ArrayList<>();
                           //        dates.add("Mon");
                           //        dates.add("Tue");
                           //        dates.add("Wen");          THIS IS THE ARRAY FOR THE X VALUES
                           //        dates.add("Thu");
                           //        dates.add("Fri");
                           //        dates.add("Sat");
                           //        dates.add("Sun");

                           xAxis1.add(dates.indexOf(0));

                           valoriAxaY.add(mon);
                           valoriAxaY.add(tue);
                           valoriAxaY.add(wen);
                           valoriAxaY.add(thu);            // THIS IS THE ARRAY FOR THE Y VALUES
                           valoriAxaY.add(fri);          
                           valoriAxaY.add(sat);
                           valoriAxaY.add(sun);

                           values = new BarEntry(valoriAxaY.indexOf(i), i); //THIS IS WHERE THE PROBLEM APPEARS
                                               // ALSO I NEED TO MENTION THAT I GET NO ERROR'S

                           yValues.add(values);

                       }

                   } catch (Exception e) {
                       e.printStackTrace();
                   }

                   BarDataSet barDataSet = new BarDataSet(yValues, "Prices");

                   yAxis = new ArrayList<>();
                   yAxis.add(barDataSet);
                   data = new BarData(dates, yAxis);
                   barChart.setData(data);

                   barDataSet.setColors(ColorTemplate.VORDIPLOM_COLORS);
                   barChart.setDescription("CryptoCurrency");
                   barChart.invalidate();
}

And this is the result :

aungmyomim · Jun 22, 2018

Ciortea Razvan said:
I try to create a Bar Graph using JSON data. The problem is when try to save a specific data in an Entry object, with the mention that i save each value in a ArrayList for iteration needed to put each value as an Entry in the graph(Y AXIS).
This is the request and plot of the graph part:

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'><tt>  </tt></li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>try { </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                       JSONObject jsonObject = new JSONObject (response ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                       JSONObject open = jsonObject. getJSONObject ( 'open' ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                        for ( int i = 0 ; i < open. length ( ) ; i ++ ) { </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            int mon = open. getInt ( 'hour' ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            int tue = open. getInt ( 'day' ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            int wen = open. getInt ( 'week' ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            int thu = open. getInt ( 'month' ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            int fri = open. getInt ( 'month_3' ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            int sat = open. getInt ( 'month_6' ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            int sun = open. getInt ( 'year' ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            //        dates = new ArrayList<>(); </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            //        dates.add('Mon'); </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            //        dates.add('Tue'); </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            //        dates.add('Wen');          THIS IS THE ARRAY FOR THE X VALUES </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            //        dates.add('Thu'); </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            //        dates.add('Fri'); </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            //        dates.add('Sat'); </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                            //        dates.add('Sun'); </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                           xAxis1. add (dates. indexOf ( 0 ) ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                           valoriAxaY. add (mon ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                           valoriAxaY. add (tue ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                           valoriAxaY. add (wen ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                           valoriAxaY. add (thu ) ;             // THIS IS THE ARRAY FOR THE Y VALUES </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                           valoriAxaY. add (fri ) ;           </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                           valoriAxaY. add (sat ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                           valoriAxaY. add (sun ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                           values = new BarEntry (valoriAxaY. indexOf (i ), i ) ; //THIS IS WHERE THE PROBLEM APPEARS </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                                                // ALSO I NEED TO MENTION THAT I GET NO ERROR'S </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                           yValues. add (values ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                        } </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                    } catch ( Exception e ) { </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                       e. printStackTrace ( ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                    } </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                   BarDataSet barDataSet = new BarDataSet (yValues, 'Prices' ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                   yAxis = new ArrayList <> ( ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                   yAxis. add (barDataSet ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                   data = new BarData (dates, yAxis ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                   barChart. setData (data ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>  </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                   barDataSet. setColors (ColorTemplate. VORDIPLOM_COLORS ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                   barChart. setDescription ( 'CryptoCurrency' ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>                   barChart. invalidate ( ) ; </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>} </li>
</ul>

<ul style='margin-top:0; margin-bottom:0;'>
<li dir='ltr'>[/LIST] And this is the result :

</li>
</ul>

aungmyomim · Jun 22, 2018

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aungmyomim · Jun 22, 2018

aungmyomim said:
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Bar graph creation problem using JSON

Ciortea Razvan

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