Fixed dataset update in demo

Author: danielgindi

MPChartExample/src/com/xxmassdeveloper/mpchartexample/BarChartActivity.java

@@ -257,17 +257,16 @@ private void setData(int count, float range) {
             set1 = new BarDataSet(yVals1, "DataSet");
             set1.setBarSpacePercent(35f);
             set1.setColors(ColorTemplate.MATERIAL_COLORS);
-        }
-
 
-        ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();
-        dataSets.add(set1);
+            ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();
+            dataSets.add(set1);
 
-        BarData data = new BarData(xVals, dataSets);
-        data.setValueTextSize(10f);
-        data.setValueTypeface(mTf);
+            BarData data = new BarData(xVals, dataSets);
+            data.setValueTextSize(10f);
+            data.setValueTypeface(mTf);
 
-        mChart.setData(data);
+            mChart.setData(data);
+        }
     }
 
     @SuppressLint("NewApi")